Kuramoto Naoki 倉本直樹

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KURAMOTO NAOKI 倉本直樹

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Researcher Number	60356938
Other IDs	https://orcid.org/0000-0002-4375-5214
Affiliation (Current)	2025: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 首席研究員
Affiliation (based on the past Project Information) *help	2022 – 2024: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 首席研究員 2020 – 2022: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 2018: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 2017: 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ付 2016: 国立研究開発法人産業技術総合研究所, 工学計測標準研究部門, 主任研究員 2012 – 2014: 独立行政法人産業技術総合研究所, 計測標準研究部門, 主任研究員
Review Section/Research Field	Principal Investigator Basic Section 29030:Applied condensed matter physics-related / Medium-sized Section 29:Applied condensed matter physics and related fields / General applied physics / Applied physics, general Except Principal Investigator Basic Section 29030:Applied condensed matter physics-related / Basic Section 18020:Manufacturing and production engineering-related
Keywords	Principal Investigator 標準 / プランク定数 / キログラム / 電圧天びん / 微小質量 / 超精密計測 / 光周波数制御 / アボガドロ定数 / 基礎物理定数 / 質量測定 … More / キッブル天びん / シリコン単結晶 / 質量 / 物理定数測定 … More Except Principal Investigator 質量 / シリコン単結晶 / プランク定数 / 標準 / キログラム / マイクロCMM / 形状測定 / フリーフォーム / 精密形状計測 / 計量標準 / 三次元計測 / 精密計測 / トレーサビリティ / CMM / 形状計測 Less

プランク定数から1キログラムを高精度に作り出すための青色レーザー干渉計開発
- Principal Investigator
  
  大田由一
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 29030:Applied condensed matter physics-related
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Realization of "weight of light" as a small mass standard based on the new definition of the kilogramPrincipal Investigator
- Principal Investigator
  
  倉本直樹
- Project Period (FY)
  2023 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 29030:Applied condensed matter physics-related
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Development of high precision free-form shape measurement system traceable to Avogadro's constant
- Principal Investigator
  
  Bitou Youichi
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 18020:Manufacturing and production engineering-related
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Development of a Kibble balance that measures mass by utilizing the new definition of kilogram based on the Plank constantPrincipal Investigator
- Principal Investigator
  
  Kuramoto Naoki
- Project Period (FY)
  2021 – 2022
- Research Category
  
  Grant-in-Aid for Challenging Research (Exploratory)
- Review Section
  
  Medium-sized Section 29:Applied condensed matter physics and related fields
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Development of a method for small mass measurements using the new definition of the kilogram based on the Planck constantPrincipal Investigator
- Principal Investigator
  
  Kuramoto Naoki
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 29030:Applied condensed matter physics-related
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Research to realize the definition of the kilogram based on the fundamental constantsPrincipal Investigator
- Principal Investigator
  
  Kuramoto Naoki
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  General applied physics
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Development of a two-dimensional dark fringe method to measure sphere diameters and an accurate determination of the Avogadro constant by using a 28Si crystalPrincipal Investigator
- Principal Investigator
  
  KURAMOTO NAOKI
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Applied physics, general
- Research Institution
  National Institute of Advanced Industrial Science and Technology

All 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 Other

All Journal Article Presentation

[Journal Article] 新しいキログラムの定義とキログラム原器の重要文化財指定2023
- Author(s)
  倉本直樹
- Journal Title
  
  計測標準と計量管理
  
  Volume: 72 Pages: 2-9
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Final report on the CCM key comparison of kilogram realizations CCM.M-K8.20212023
- Author(s)
  Stock M、Fujita K、Inaba H、Kano K、Kuramoto N、Mizushima S、Okubo S、Ota Y、Zhang L et al.
- Journal Title
  
  Metrologia
  
  Volume: 60 Issue: 1A Pages: 07003-07003
- DOI
  10.1088/0026-1394/60/1a/07003
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Realization of the New Kilogram Based on the Planck Constant by the X-Ray Crystal Density Method2022
- Author(s)
  Kuramoto Naoki
- Journal Title
  
  Handbook of Metrology and Applications
  
  Volume: - Pages: 1-22
- DOI
  10.1007/978-981-19-1550-5_11-1
- ISBN
  9789811915505
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Finite-Element Simulation of Effect of Surface Roughness of Coaxial Cylindrical Electrodes on Small Mass and Force Measurements Using Voltage Balance Apparatus2022
- Author(s)
  Fujita Kazuaki、Kuramoto Naoki
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 71 Pages: 1003306-1003306
- DOI
  10.1109/tim.2022.3165249
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Evaluation of automatic sub-multiple mass calibration for sub-milligram weights at NMIJ2022
- Author(s)
  Ota Y.、Ueki M.、Kuramoto N.
- Journal Title
  
  Measurement
  
  Volume: 198 Pages: 111320-111320
- DOI
  10.1016/j.measurement.2022.111320
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Investigating Stability of Si Sphere Surface Layer in Ambient-Vacuum Cyclic Measurements Using Ellipsometry2022
- Author(s)
  Fujita Kazuaki、Fujii Kenichi、Zhang Lulu、Azuma Yasushi、Mizushima Shigeki、Kuramoto Naoki
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 71 Pages: 1001409-1004109
- DOI
  10.1109/tim.2021.3129229
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] New Definitions of the Kilogram and the Mole: Paradigm Shift to the Definitions Based on Physical Constants2021
- Author(s)
  KURAMOTO Naoki
- Journal Title
  
  Anal. Sci.
  
  Volume: 37 Issue: 1 Pages: 177-188
- DOI
  10.2116/analsci.20SAR08
- NAID
  130007966709
- ISSN
  0910-6340, 1348-2246
- Year and Date
  2021-01-10
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Determination of Defect Concentrations in 28Si Crystals Using EPR for the Realization of the Kilogram2021
- Author(s)
  Mizushima Shigeki、Kuramoto Naoki、Umeda Takahide
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 70 Pages: 1-6
- DOI
  10.1109/tim.2021.3062186
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Evaluation of an automated mass comparator performance for mass calibration of sub-milligram weights2021
- Author(s)
  Ota Y.、Ueki M.、Kuramoto N.
- Journal Title
  
  Measurement
  
  Volume: 172 Pages: 108841-108841
- DOI
  10.1016/j.measurement.2020.108841
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Volume Measurement of a 28Si-Enriched Sphere to Realize the Kilogram Based on the Planck Constant at NMIJ2021
- Author(s)
  Ota Yuichi、Okubo Sho、Inaba Hajime、Kuramoto Naoki
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 70 Pages: 1-6
- DOI
  10.1109/tim.2021.3061249
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Reproducibility of the Realization of the Kilogram Based on the Planck Constant by the XRCD Method at NMIJ2021
- Author(s)
  Kuramoto Naoki、Mizushima Shigeki、Zhang Lulu、Fujita Kazuaki、Okubo Sho、Inaba Hajime、Azuma Yasushi、Kurokawa Akira、Ota Yuichi、Fujii Kenichi
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 70 Pages: 1-9
- DOI
  10.1109/tim.2021.3061805
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Finite element simulation of the effect of surface roughness of coaxial electrodes on small mass and force measurements using a voltage balance apparatus2021
- Author(s)
  Fujita Kazuaki、Kuramoto Naoki
- Journal Title
  
  Measurement: Sensors
  
  Volume: 18 Pages: 100143-100143
- DOI
  10.1016/j.measen.2021.100143
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Verifying the Reliability of a Voltage Balance Apparatus to Measure Small Mass and Force Standards at NMIJ2021
- Author(s)
  Fujita Kazuaki、Fujii Kenichi、Yamamoto Yasuyuki、Ota Yuichi、Kuramoto Naoki
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 70 Pages: 1-5
- DOI
  10.1109/tim.2021.3052020
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Realization of the new kilogram by the XRCD method using 28Si-enriched spheres2021
- Author(s)
  Kuramoto Naoki、Mizushima Shigeki、Zhang Lulu、Fujita Kazuaki、Ota Yuichi、Okubo Sho、Inaba Hajime
- Journal Title
  
  Measurement: Sensors
  
  Volume: 18 Pages: 100091-100091
- DOI
  10.1016/j.measen.2021.100091
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] XPS Analysis of a 28Si-Enriched Sphere for Realization of the Kilogram2021
- Author(s)
  Zhang Lulu、Kuramoto Naoki、Kurokawa Akira
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 70 Pages: 1-5
- DOI
  10.1109/tim.2021.3066190
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] 40 GHz continuous, precise, and low power-loss laser frequency sweep using an electro-optic modulator2020
- Author(s)
  Okubo Sho、Kuramoto Naoki、Inaba Hajime
- Journal Title
  
  Optics Express
  
  Volume: 28 Issue: 8 Pages: 11956-11956
- DOI
  10.1364/oe.389297
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Realization of the New Kilogram Using 28Si-Enriched Spheres and Dissemination of Mass Standards at NMIJ2020
- Author(s)
  Kuramoto Naoki、Mizushima Shigeki、Zhang Lulu、Fujita Kazuaki、Ota Yuichi、Okubo Sho、Inaba Hajime
- Journal Title
  
  MAPAN
  
  Volume: 35 Issue: 4 Pages: 491-498
- DOI
  10.1007/s12647-020-00393-2
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] Report on the CCM key comparison of kilogram realizations CCM.M-K8.20192020
- Author(s)
  Stock M、Kuramoto N et al.
- Journal Title
  
  Metrologia
  
  Volume: 57 Issue: 1A Pages: 07030-07030
- DOI
  10.1088/0026-1394/57/1a/07030
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Journal Article] XPS study of silicon spheres as a density standard2019
- Author(s)
  Zhang Lulu、Kuramoto Naoki、Kurokawa Akira、Fujii Kenichi
- Journal Title
  
  Surface and Interface Analysis
  
  Volume: 51 Issue: 4 Pages: 400-407
- DOI
  10.1002/sia.6594
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Electron Paramagnetic Resonance Study on 28Si Single Crystal for the Future Realization of the Kilogram2019
- Author(s)
  Shigeki Mizushima, Naoki Kuramoto, Kenichi Fujii, and Takahide Umeda
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 68 Issue: 6 Pages: 1879-1886
- DOI
  10.1109/tim.2018.2884044
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05112, KAKENHI-PROJECT-16H03901
[Journal Article] キログラムの新しい定義－さらばキログラム原器－2019
- Author(s)
  倉本直樹
- Journal Title
  
  化学と工業
  
  Volume: 72 Pages: 32-33
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Volume Measurement of a 28Si-Enriched Sphere for a Determination of the Avogadro Constant at NMIJ2019
- Author(s)
  Kuramoto Naoki、Zhang Lulu、Fujita Kazuaki、Okubo Sho、Inaba Hajime、Fujii Kenichi
- Journal Title
  
  IEEE Transactions on Instrumentation and Measurement
  
  Volume: 印刷中 Issue: 6 Pages: 1913-1920
- DOI
  10.1109/tim.2018.2878072
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Avogadro constant measurements using enriched 28Si monocrystals2018
- Author(s)
  K Fujii, E Massa, H Bettin, Naoki Kuramoto and G Mana
- Journal Title
  
  Metrologia
  
  Volume: 55 Issue: 1 Pages: L1-L4
- DOI
  10.1088/1681-7575/aa9abd
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Self-weight effect in the measurement of the volume of silicon spheres2018
- Author(s)
  D Mari, E Massa, N Kuramoto and G Mana
- Journal Title
  
  Metrologia
  
  Volume: 55 Issue: 2 Pages: 294-301
- DOI
  10.1088/1681-7575/aaaed5
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] A comparison of future realizations of the kilogram2018
- Author(s)
  Michael Stock, Kenichi Fujii, Kazuaki Fujita, Naoki Kuramoto, Shigeki Mizushima, Lulu Zhang ほか
- Journal Title
  
  Metrologia
  
  Volume: 55 Issue: 1 Pages: T1-T7
- DOI
  10.1088/1681-7575/aa9a7e
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Surface Layer Analysis of a 28Si-Enriched Sphere Both in Vacuum and in Air by Ellipsometry2017
- Author(s)
  K. Fujita, N. Kuramoto, Y. Azuma, S. Mizushima and K. Fujii
- Journal Title
  
  IEEE Trans. Instrum. Meas.
  
  Volume: 印刷中 Issue: 6 Pages: 1283-1288
- DOI
  10.1109/tim.2016.2634640
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Realization of the Kilogram Based on the Planck Constant at NMIJ2017
- Author(s)
  N. Kuramoto, L. Zhang, S. Mizushima, K. Fujita, Y. Azuma, A. Kurokawa and K. Fujii
- Journal Title
  
  IEEE Trans. Instrum. Meas.
  
  Volume: 印刷中 Issue: 6 Pages: 1267-1274
- DOI
  10.1109/tim.2016.2624878
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Thickness Measurement of Oxide and Carbonaceous Layer on a 28Si Sphere by XPS2017
- Author(s)
  L. Zhang, N. Kuramoto, Y. Azuma, A. Kurokawa, N. Kuramoto and K. Fujii
- Journal Title
  
  IEEE Trans. Instrum. Meas.
  
  Volume: 印刷中 Issue: 6 Pages: 1297-1303
- DOI
  10.1109/tim.2016.2634678
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Mass Measurement of 28Si-enriched Spheres at NMIJ for the Determination of the Avogadro Constant2017
- Author(s)
  S. Mizushima, N. Kuramoto, L. Zhang and K. Fujii
- Journal Title
  
  IEEE Trans. Instrum. Meas.
  
  Volume: 印刷中 Issue: 6 Pages: 1275-1282
- DOI
  10.1109/tim.2017.2653498
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Uniformity Evaluation of Lattice Spacing of 28Si Single Crystals2017
- Author(s)
  A. Waseda, H. Fujimoto, X. W. Zhang, N. Kuramoto and K. Fujii
- Journal Title
  
  IEEE Trans. Instrum. Meas.
  
  Volume: 印刷中 Issue: 6 Pages: 1304-1308
- DOI
  10.1109/tim.2016.2624838
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Volume measurements of 28Si-enriched spheres using an improved optical interferometer for the determination of the Avogadro constant2017
- Author(s)
  Naoki Kuramoto, Yasushi Azuma, Hajime Inaba and Kenichi Fujii
- Journal Title
  
  Metrologia
  
  Volume: 54 Issue: 2 Pages: 193-203
- DOI
  10.1088/1681-7575/aa5379
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Determination of the Avogadro constant by the XRCD method using a 28Si enriched sphere2017
- Author(s)
  Naoki Kuramoto, Shigeki Mizushima, Lulu Zhang, Kazuaki Fujita, Yasushi Azuma, Akira Kurokawa, Sho Okubo, Hajime Inaba and Kenichi Fujii
- Journal Title
  
  Metrologia
  
  Volume: 54 Issue: 5 Pages: 716-729
- DOI
  10.1088/1681-7575/aa77d1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] A new 28Si single crystal: counting the atoms for the new kilogram definition2017
- Author(s)
  Guido Bartl, Kenichi Fujii, Kazuaki Fujita, Naoki Kuramoto, Shigeki Mizushima, Lulu Zhang ほか
- Journal Title
  
  Metrologia
  
  Volume: 54 Issue: 5 Pages: 693-715
- DOI
  10.1088/1681-7575/aa7820
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Realization of the kilogram by the XRCD method2016
- Author(s)
  K. Fujii, H. Bettin, P. Becker, E. Massa, O. Rienitz, A. Pramann, A. Nicolaus, N. Kuramoto, I. Busch and M. Borys
- Journal Title
  
  Metrologia
  
  Volume: 53 Issue: 5 Pages: A19-A45
- DOI
  10.1088/0026-1394/53/5/a19
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Journal Article] Improved measurement results for the Avogadro constant using a 28Si-enriched crystal2015
- Author(s)
  Yasushi Azuma, Kenichi Fujii, Hiroyuki Fujimoto, Naoki Kuramoto, Shigeki Mizushima, Atsushi Waseda ほか
- Journal Title
  
  Metrologia
  
  Volume: 52 Issue: 2 Pages: 360-375
- DOI
  10.1088/0026-1394/52/2/360
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Surface Layer Analysis of Si Sphere by XRF and XPS2015
- Author(s)
  Lulu Zhang, Yasushi Azuma, Akira Kurokawa, Naoki Kuramoto, Kenichi Fujii
- Journal Title
  
  IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
  
  Volume: 64 Issue: 6 Pages: 1509-1513
- DOI
  10.1109/tim.2015.2389352
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] 基礎物理定数に基づく新しいキログラムとモルの定義2015
- Author(s)
  倉本直樹、東康史、藤井賢一
- Journal Title
  
  ぶんせき
  
  Volume: 印刷中
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Mass Measurement of 1-kg Silicon Spheres for Determination of the Avogadro and Planck Constants2015
- Author(s)
  Shigeki Mizushima, Naoki Kuramoto, Kazunaga Ueda, Kenichi Fujii
- Journal Title
  
  IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
  
  Volume: 64 Issue: 6 Pages: 1527-1532
- DOI
  10.1109/tim.2015.2389351
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Improvements to the Volume Measurement of 28Si Spheres to Determine the Avogadro Constant2015
- Author(s)
  Naoki Kuramoto, Yasushi Azuma, Hajime Inaba, Feng-Lei Hong, Kenichi Fujii
- Journal Title
  
  IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
  
  Volume: 64 Issue: 6 Pages: 1650-1656
- DOI
  10.1109/tim.2015.2401212
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Homogeneity Characterization of Lattice Spacing of Silicon Single Crystals2015
- Author(s)
  Atsushi Waseda, Hiroyuki Fujimoto, Xiao Wei Zhang, Naoki Kuramoto, Kenichi Fujii
- Journal Title
  
  IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
  
  Volume: 64 Issue: 6 Pages: 1692-1695
- DOI
  10.1109/tim.2014.2383091
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] 物質量（mol）についての基礎解説と最新動向2014
- Author(s)
  倉本直樹
- Journal Title
  
  計測と制御
  
  Volume: 53 Pages: 368-373
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Molar-mass measurement of a 28Si-enriched silicon crystal for determination of the Avogadro constant2014
- Author(s)
  Tomohiro Narukawa, Akiharu Hioki, Naoki Kuramoto, Kenichi Fuji
- Journal Title
  
  Metrologia
  
  Volume: 51 Issue: 3 Pages: 161-168
- DOI
  10.1088/0026-1394/51/3/161
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Volume measurement of 28Si spheres by an improved optical interferometer and ellipsometer to determined the Avogadro constant2014
- Author(s)
  Naoki Kuramoto, Yasushi Azuma, Hajime Inaba, Feng-Lei Hong, Kenichi Fujii
- Journal Title
  
  Digest of Conference on Precision Electromagnetic Measurements 2014
  
  Volume: - Pages: 210-211
- DOI
  10.1109/cpem.2014.6898333
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Mass measurement of 1-kg silicon spheres for the precise determination of the Avogadro constant at the NMIJ2014
- Author(s)
  Shigeki Mizushima, Naoki Kuramoto, Kazunaga Ueda, Kenichi Fujii
- Journal Title
  
  Digest of Conference on Precision Electromagnetic Measurements 2014
  
  Volume: - Pages: 392-393
- DOI
  10.1109/cpem.2014.6898424
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] European Metrology Reserach Prgramme: Advances on the Realization of the Kilogram Redefinition2014
- Author(s)
  T. Arnold, H. Baumann, H. Bettin, F. Bielsa, A. Eichenberger, Naoki Kuramoto, G. Mana, E. Massa, S. Merlet, F. Pereira dos Santos, A. Picard, P. Pinot, F. Piqumal
- Journal Title
  
  Digest of Conference on Precision Electromagnetic Measurements 2014
  
  Volume: - Pages: 426-427
- DOI
  10.1109/cpem.2014.6898441
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Homogeneity characterization of lattice spacing of silicon single crystals2014
- Author(s)
  Atsushi Waseda, Hiroyuki Fujimoto, Xiao Wei Zhang, Naoki Kuramoto, Kenichi Fujii
- Journal Title
  
  Digest of Conference on Precision Electromagnetic Measurements 2014
  
  Volume: - Pages: 400-401
- DOI
  10.1109/cpem.2014.6898428
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] International comparison of volume measurement for a 1 kg silicon sphere2014
- Author(s)
  Naoki Kuramoto, Kyung Ho Chang, Kenichi Fujii, Yong Jae Lee
- Journal Title
  
  Measurement
  
  Volume: 49 Pages: 187-195
- DOI
  10.1016/j.measurement.2013.11.038
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Surface Layer Analysis of Si Sphere by XRF and XPS2014
- Author(s)
  Lulu Zhang, Yasushi Azuma, Akira Kurokawa, Naoki Kuramoto, Kenichi Fujii
- Journal Title
  
  Digest of Conference on Precision Electromagnetic Measurements 2014
  
  Volume: - Pages: 208-209
- DOI
  10.1109/cpem.2014.6898332
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] 次世代質量標準実現のためのシリコン結晶の密度測定と表面分析2013
- Author(s)
  倉本　直樹、東　康史、稲場　肇、洪　鋒雷、藤井　賢一
- Journal Title
  
  第34回日本熱物性シンポジウム講演論文集
  
  Volume: 34 Pages: 132-134
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] 密度・粘度の話2013
- Author(s)
  倉本　直樹、藤田　佳孝
- Journal Title
  
  ペトロテック
  
  Volume: 36 Pages: 551-556
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] 物質量の話－モル、アボガドロ定数の現在と将来2013
- Author(s)
  倉本　直樹、藤井　賢一
- Journal Title
  
  ペトロテック
  
  Volume: 36 Pages: 482-486
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] The uncertainty of the phase-correction in sphere-diameter measurements2012
- Author(s)
  Birk Andereas, Kenichi Fujii, Naoki Kuramoto, Giovanni Mana
- Journal Title
  
  Metrologia
  
  Volume: 49 Issue: 4 Pages: 479-486
- DOI
  10.1088/0026-1394/49/4/479
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Realization of the anticipated definition of the kilogram2012
- Author(s)
  H. Baumann, H. Bettin, F. Bielsa, A. Eichenberger, G. Geneves, N. Kuramoto, G. Mana, E. Massa, F. Pereira dos Santos, A. Picard, P. Pinot, A. Shindler
- Journal Title
  
  Digest of Conference on Precision Electromagnetic Measurements 2012
  
  Pages: 340-341
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Journal Article] Uncertainty reduction in the volume measurement of Si spheres by an optical interferometer to determine the Avogadro constant2012
- Author(s)
  Naoki Kuramoto, Hajime Inaba, Kenichi Fujii
- Journal Title
  
  Digest of Conference on Precision Electromagnetic Measurements 2012
  
  Pages: 356-357
- DOI
  10.1109/cpem.2012.6250949
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Realization of the kilogram and dissemination of mass standards at National Metrology Institute of Japan2024
- Author(s)
  Naoki KURAMOTO, Yuichi OTA
- Organizer
  Information exchange on research concerning mass measurement at Mettler-Toledo
- Invited
- Data Source
  KAKENHI-PROJECT-23K26553
[Presentation] 新しいキログラムの定義とキログラム原器の重要文化財指定2024
- Author(s)
  倉本直樹
- Organizer
  関東甲信越計量団体連絡協議会講習会
- Invited
- Data Source
  KAKENHI-PROJECT-23K26553
[Presentation] 新しい１キログラムの実現方法2024
- Author(s)
  倉本直樹、狩野祐也、藤田一慧、大田由一、大久保章、稲場肇、張ルウルウ、東康史、黒河明、水島茂
- Organizer
  産業技術総合研究所計量標準総合センター成果発表会
- Data Source
  KAKENHI-PROJECT-23K26553
[Presentation] Present status of the realization of the kilogram by the XRCD method at NMIJ2023
- Author(s)
  Naoki KURAMOTO
- Organizer
  Joint meeting of Kibble balance technical meeting and the International Avogadro CoordinationKBTM/IAC meeting
- Data Source
  KAKENHI-PROJECT-23K26553
[Presentation] 物理定数にもとづく新しいキログラムの定義～１３０年ぶりとなるキログラムの定義改定を導いた国際研究協力と日本国キログラム原器の重要文化財指定～2023
- Author(s)
  倉本直樹
- Organizer
  日本新薬株式会社計量月間行事にかかる講演会
- Invited
- Data Source
  KAKENHI-PROJECT-23K26553
[Presentation] 新しい1キログラムの作り方2023
- Author(s)
  倉本直樹、狩野祐也、藤田一慧、大田由一、張ルウルウ、東康史、黒河明、大久保章、稲場肇
- Organizer
  第40回合同シンポジウム
- Data Source
  KAKENHI-PROJECT-23K26553
[Presentation] 新しいキログラムの定義と日本国キログラム原器の重文指定2022
- Author(s)
  倉本直樹
- Organizer
  NMIJ法定計量セミナー（東京ビッグサイト）
- Invited
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] キログラムの新しい定義2022
- Author(s)
  倉本直樹
- Organizer
  京都府計量協会計量士部会定時総会
- Invited
- Data Source
  KAKENHI-PROJECT-21K18900
[Presentation] プランク定数にもとづく新しいキログラムの定義2022
- Author(s)
  倉本直樹
- Organizer
  核物質管理センター保障措置分析に係る精度の向上検討委員会
- Invited
- Data Source
  KAKENHI-PROJECT-21K18900
[Presentation] キログラムの新しい定義2022
- Author(s)
  倉本直樹
- Organizer
  京都府計量協会計量士部会総会（オンライン）
- Invited
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Torque generating machine based on the principle of the Kibble balance at NMIJ2022
- Author(s)
  Naoki KURAMOTO, Atsuhiro NISHINO, Sayaka HAMAJI, Koji Ohgushi
- Organizer
  CPEM2022（ウェリントン・ニュージーランド）
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] キログラムの新しい定義2022
- Author(s)
  倉本直樹
- Organizer
  力学量標準トレーサビリティ・ワークショップ（京都国際会館）
- Invited
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Present status of the realization of the kilogram by counting atoms in 28Si-enriched crystals2022
- Author(s)
  Naoki KURAMOTO
- Organizer
  CPEM2022（ウェリントン・ニュージーランド）
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Numerical Investigation of Effective Optical Characteristics of Dielectric Mixture Layer on Si Sphere by FDTD Method2022
- Author(s)
  Kazuaki FUJITA and Naoki KURAMOTO
- Organizer
  CPEM2022（ウェリントン・ニュージーランド）
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 新しい1キログラムの作り方2022
- Author(s)
  倉本直樹、藤田一慧、大田由一
- Organizer
  第89回日本分析化学会有機微量研究懇談会（オンライン）
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] New definition of the kilogram and mass standards for industry2021
- Author(s)
  Naoki KURAMOTO
- Organizer
  Strengthening ASEAN Mass, Density and Viscosity Metrology for Sustainable Development、主催：National Metrology Institute of Thailand（NIMT）、オンライン開催（2022年1月21日）
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Finite element simulation of the effect of surface roughness of coaxial electrodes on small mass and force measurements using a voltage balance apparatus2021
- Author(s)
  Fujita Kazuaki, Kuramoto Naoki
- Organizer
  IMEKO2021、主催：IMEKO（国際計測連合）、オンライン開催（2021年8月30日）
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 新しい１キログラムの測り方ーさらばキログラム原器ー2021
- Author(s)
  倉本直樹
- Organizer
  IMEKO2021 市民公開講座、主催：IMEKO（国際計測連合）、オンライン開催（2021年8月29日）
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 新しいキログラムの作り方2021
- Author(s)
  倉本直樹、藤田一慧、大田由一
- Organizer
  第38回合同シンポジウム（第88回日本分析化学会有機微量分析研究懇談会、第116回計測自動制御学会力学量計測部会）、オンライン開催（2021年6月17日））
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Realization of the new kilogram by the XRCD method using 28Si-enriched spheres2021
- Author(s)
  Naoki KURAMOTO, Shigeki MIZUSHIMA, Lulu ZHANG, Kazuaki FUJITA, Yuichi OTA, Sho OKUBO, Hajime INABA
- Organizer
  IMEKO2021、主催：IMEKO（国際計測連合）、オンライン開催（2021年8月30日）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 普遍的な物理定数にもとづく新しいキログラムの定義2021
- Author(s)
  倉本直樹
- Organizer
  2021年度非破壊検査総合シンポジウム、主催：日本非破壊検査協会、オンライン開催（2021年6月22日）
- Invited
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Reproducibility of the realization of the kilogram based on the Planck constant by the XRCD method at NMIJ2020
- Author(s)
  Naoki Kuramoto, Lulu Zhang, Shigeki Mizushima, Kazuaki Fujita, Yasushi Azuma, Akira Kurokawa, Yuichi Ota, and Kenichi Fujii
- Organizer
  CPEM2020（Conference on Precision Electromagnetic Measurements 2020）, August 2020, online virtual conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 新しいキログラムの作り方2020
- Author(s)
  倉本直樹、藤田一慧、大田由一
- Organizer
  第37回計測自動制御学会センシングフォーラム、2020年9月3日、オンライン開催
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 新しいキログラムの作り方2020
- Author(s)
  倉本直樹、藤田一慧、大田由一
- Organizer
  第37回合同シンポジウム（第87回日本分析化学会有機微量分析研究懇談会、第113回計測自動制御学会力学量計測部会）、2020年6月11日、講演予稿集発行をもって発表成立
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Volume Measurement of a 28Si-enriched Sphere to Realize the Kilogram Based on the Planck Constant at NMIJ2020
- Author(s)
  Yuichi Ota, Hajime Inaba, Naoki Kuramoto, Sho Okubo
- Organizer
  CPEM2020（Conference on Precision Electromagnetic Measurements 2020）, August 2020, online virtual conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Reliability Check of a Voltage Balance to Measure the Radiation Pressure for Small Mass and Force Standard at NMIJ2020
- Author(s)
  Kazuaki Fujita, Kenichi Fujii, Yasuyuki Yamamoto, Yuichi Ota, Naoki Kuramoto
- Organizer
  CPEM2020（Conference on Precision Electromagnetic Measurements 2020）, August 2020, online virtual conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] Determination of Defect Concentrations in 28Si Crystals Using EPR for the Realization of the Kilogram2020
- Author(s)
  Shigeki Mizushima, Naoki Kuramoto, Takahide Umeda
- Organizer
  CPEM2020（Conference on Precision Electromagnetic Measurements 2020）, August 2020, online virtual conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 普遍的な物理定数にもとづくキログラムの新しい定義2020
- Author(s)
  倉本直樹
- Organizer
  日本学術振興会　将来加工技術第136委員会　令和2年度第1回研究会、2020年11月2日、オンライン開催
- Invited
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] XPS analysis of a 28Si-enriched sphere for realization of the kilogram2020
- Author(s)
  Lulu Zhang, Naoki Kuramoto, Akira Kurokawa
- Organizer
  CPEM2020（Conference on Precision Electromagnetic Measurements 2020）, August 2020, online virtual conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02630
[Presentation] 新たなキログラムの定義を導くためのシリコン単結晶球体形状測定2019
- Author(s)
  倉本直樹
- Organizer
  平成30年度長さクラブ講演会
- Invited
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] 新しいキログラムの定義2019
- Author(s)
  倉本直樹
- Organizer
  平成30年度計量技術講演会
- Invited
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Volume measurement of a 28Si-enriched sphere for a determination of the Avogadro constant at NMIJ2018
- Author(s)
  N. Kuramoto, L. Zhang, K. Fujita, S. Okubo, H. Inaba and K. Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2018 (CPEM2018), 2018年7月, パリ（フランス）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Characterization of vapor adsorption on the surface of Si spheres by ellipsometry2018
- Author(s)
  K. Fujita, N. Kuramoto, S. Mizushima and K. Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2018 (CPEM2018)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Electron paramagnetic resonance study on 28Si single crystal for the future realization of the kilogram2018
- Author(s)
  S. Mizushima, N. Kuramoto, K. Fujii and T. Umeda
- Organizer
  Conference on Precision Electromagnetic Measurements 2018 (CPEM2018), 2018年7月, パリ（フランス）
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] 新たなキログラムを導くためのプランク定数精密測定2018
- Author(s)
  倉本直樹, 藤井賢一
- Organizer
  2018年精密工学会春季大会
- Invited
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] キログラムの定義改定に向けた白金イリジウム製質量標準の設定2017
- Author(s)
  水島茂喜, 倉本直樹, 藤井賢一
- Organizer
  第34回センシングフォーラム（計測自動制御学会主催）
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Mass Measurement of 28Si-enriched Spheres at NMIJ for the Determination of the Avogadro Constant2016
- Author(s)
  S. Mizushima, N. Kuramoto, L. Zhang and K. Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2016 (CPEM2016)
- Place of Presentation
  Westin Ottawa Hotel (Canada, Otawa)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Realization of the Kilogram Based on the Planck Constant at NMIJ2016
- Author(s)
  N. Kuramoto, L. Zhang, S. Mizushima, K. Fujita, Y. Azuma, A. Kurokawa and K. Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2016 (CPEM2016)
- Place of Presentation
  Westin Ottawa Hotel (Canada, Otawa)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Surface Layer Analysis of a 28Si-Enriched Sphere Both in Vacuum and in Air by Ellipsometry2016
- Author(s)
  K. Fujita, N. Kuramoto, Y. Azuma, S. Mizushima and K. Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2016 (CPEM2016)
- Place of Presentation
  Westin Ottawa Hotel (Canada, Otawa)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] 28Si同位体濃縮結晶を用いた新たなキログラムの定義の実現2016
- Author(s)
  倉本直樹、張ルウルウ、水島茂喜、藤田一慧、東康史、黒河明、藤井賢一
- Organizer
  計測自動制御学会第３３回センシングフォーラム
- Place of Presentation
  近畿大学和歌山キャンパス（和歌山県、紀の川市）
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Uniformity Evaluation of Lattice Spacing of 28Si Single Crystals2016
- Author(s)
  A. Waseda, H. Fujimoto, X. W. Zhang, N. Kuramoto and K. Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2016 (CPEM2016)
- Place of Presentation
  Westin Ottawa Hotel (Canada, Otawa)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] Surface Layer Analysis of a 28Si-Enriched Crystal by XPS2016
- Author(s)
  L. Zhang, N. Kuramoto, Y. Azuma, A. Kurokawa, N. Kuramoto and K. Fujii
- Organizer
  7th International Symposium on Practical Surface Analysis (PSA-16)
- Place of Presentation
  Hotel ICC in Daejeon (South Korea, Daejeon)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] キログラムとモルの再定義のためのアボガドロ定数精密測定2016
- Author(s)
  倉本直樹、水島茂喜、成川知弘、東康史、藤井賢一
- Organizer
  第83回日本分析化学会有機微量分析研究懇談会
- Place of Presentation
  いわて県民情報交流センター（岩手県、盛岡市）
- Data Source
  KAKENHI-PROJECT-16H03901
[Presentation] アボガドロ定数決定のための単結晶シリコン結晶評価2014
- Author(s)
  早稲田　篤、藤本弘之、倉本　直樹、張　小威
- Organizer
  高エネルギー加速器機構物質構造科学研究所第31回PFシンポジウム
- Place of Presentation
  茨城県つくば市つくば国際会議場
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] 次世代質量標準実現のためのシリコン結晶の密度測定と表面分析2013
- Author(s)
  倉本直樹、東康史、稲場肇、洪雷鋒、藤井賢一
- Organizer
  第34回日本熱物性シンポジウム
- Place of Presentation
  富山県富山市富山県民会館
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] アボガドロ定数決定のための単結晶シリコンの結晶評価2013
- Author(s)
  早稲田篤、藤本弘之、張小威、倉本直樹
- Organizer
  大学共同利用機関法人高エネルギー加速器研究機構物質構造科学研究所サイエンスフェスタ第30回PFシンポジウム
- Place of Presentation
  茨城県つくば市、つくば国際会議場
- Year and Date
  2013-03-14
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Realization of the anticipated definition of the kilogram2012
- Author(s)
  H. Baumann, H. Bettin, F. Bielsa, A. Eichenberger, G. Geneves, N. Kuramoto, G. Mana, E. Massa, F. Pereira dos Santos, A. Picard, P. Pinot, A. Shindler
- Organizer
  Conference on Precision Electromagnetic Measurements 2012
- Place of Presentation
  アメリカ合衆国、ワシントンDC, Gaylord National Resort
- Year and Date
  2012-07-03
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Uncertainty reduction in the volume measurement of Si spheres by an optical interferometer to determine the Avogadro constant2012
- Author(s)
  Naoki Kuramoto, Hajime Inaba, Kenichi Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2012
- Place of Presentation
  アメリカ合衆国、ワシントンDC, Gaylord National Resort
- Year and Date
  2012-07-03
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Surface Layer Analysis of Si Sphere by XRF and XPS
- Author(s)
  Lulu Zhang, Yasushi Azuma, Akira Kurokawa, Naoki Kuramoto, Kenichi Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2014
- Place of Presentation
  Windsor Barra Hotel、リオデジャネイロ（ブラジル）
- Year and Date
  2014-08-24 – 2014-08-29
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Mass measurement of 1-kg silicon spheres for the precise determination of the Avogadro constant at the NMIJ
- Author(s)
  Shigeki Mizushima, Naoki Kuramoto, Kazunaga Ueda, Kenichi Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2014
- Place of Presentation
  Windsor Barra Hotel、リオデジャネイロ（ブラジル）
- Year and Date
  2014-08-24 – 2014-08-29
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Homogeneity characterization of lattice spacing of silicon single crystals
- Author(s)
  Atsushi Waseda, Hiroyuki Fujimoto, Xiao Wei Zhang, Naoki Kuramoto, Kenichi Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2014
- Place of Presentation
  Windsor Barra Hotel、リオデジャネイロ（ブラジル）
- Year and Date
  2014-08-24 – 2014-08-29
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Volume measurement of 28Si spheres by an improved optical interferometer and ellipsometer to determine the Avogadro constant
- Author(s)
  Naoki Kuramoto, Yasushi Azuma, Hajime Inaba, Feng-Lei Hong, Kenichi Fujii
- Organizer
  Conference on Precision Electromagnetic Measurements 2014
- Place of Presentation
  Windsor Barra Hotel、リオデジャネイロ（ブラジル）
- Year and Date
  2014-08-24 – 2014-08-29
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] Realization of the Mass Standard Based on Fundamental Physical Constants
- Author(s)
  Naoki Kuramoto
- Organizer
  14th Japanese-American Frontier of Science (JAFoS) Symposium
- Place of Presentation
  ホテルニューオータニ、東京都
- Year and Date
  2014-12-04 – 2014-12-07
- Invited
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] アボガドロ定数決定のための単結晶シリコンの結晶評価
- Author(s)
  早稲田篤、藤本弘之、張小威、倉本直樹
- Organizer
  第3回大学共同利用機関法人高エネルギー加速器研究機構物質構造科学研究所サイエンスフェスタ第32回PFシンポジウム
- Place of Presentation
  つくば国際会議場、茨城県
- Year and Date
  2015-03-17 – 2015-03-18
- Data Source
  KAKENHI-PROJECT-24360037
[Presentation] European Metrology Research Program: Advances on the Realization of the Kilogram Definition
- Author(s)
  T. Arnold, Azuma Yasushi, Kenichi Fujii, Hiroyuki Hujimoto, Naoki Kuramoto, S. Mizushima, Atsushi Waseda
- Organizer
  Conference on Precision Electromagnetic Measurements 2014
- Place of Presentation
  Windsor Barra Hotel、リオデジャネイロ（ブラジル）
- Year and Date
  2014-08-24 – 2014-08-29
- Data Source
  KAKENHI-PROJECT-24360037

1. 水島茂喜 (60358091)

# of Collaborated Projects: 3 results

# of Collaborated Products: 3 results
2. 大久保章 (30635800)

# of Collaborated Projects: 3 results

# of Collaborated Products: 11 results
3. 稲場肇 (70356492)

# of Collaborated Projects: 3 results

# of Collaborated Products: 12 results
4. 藤田一慧 (80759952)

# of Collaborated Projects: 3 results

# of Collaborated Products: 7 results
5. WASEDA Atsushi (20272172)

# of Collaborated Projects: 2 results

# of Collaborated Products: 8 results
6. FUJII Kenichi (50357901)

# of Collaborated Projects: 2 results

# of Collaborated Products: 47 results
7. 大田由一 (60737237)

# of Collaborated Projects: 2 results

# of Collaborated Products: 16 results
8. AZUMA Yasushi (30356365)

# of Collaborated Projects: 1 results

# of Collaborated Products: 11 results
9. FUJIMOTO Hiroyuki (30357917)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
10. Bitou Youichi (30357842)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 張麓ルウ (50392634)

# of Collaborated Projects: 1 results

# of Collaborated Products: 9 results
12. 近藤余範 (10586316)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Kuramoto Naoki 倉本 直樹

KURAMOTO NAOKI 倉本 直樹

Research Projects

Research Products

Co-Researchers

プランク定数から1キログラムを高精度に作り出すための青色レーザー干渉計開発

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Realization of "weight of light" as a small mass standard based on the new definition of the kilogramPrincipal Investigator

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Development of high precision free-form shape measurement system traceable to Avogadro's constant

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Development of a Kibble balance that measures mass by utilizing the new definition of kilogram based on the Plank constantPrincipal Investigator

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Development of a method for small mass measurements using the new definition of the kilogram based on the Planck constantPrincipal Investigator

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Research to realize the definition of the kilogram based on the fundamental constantsPrincipal Investigator

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Development of a two-dimensional dark fringe method to measure sphere diameters and an accurate determination of the Avogadro constant by using a 28Si crystalPrincipal Investigator

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[Journal Article] 新しいキログラムの定義とキログラム原器の重要文化財指定2023

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[Journal Article] Final report on the CCM key comparison of kilogram realizations CCM.M-K8.20212023

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[Journal Article] Realization of the New Kilogram Based on the Planck Constant by the X-Ray Crystal Density Method2022

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[Journal Article] Finite-Element Simulation of Effect of Surface Roughness of Coaxial Cylindrical Electrodes on Small Mass and Force Measurements Using Voltage Balance Apparatus2022

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[Journal Article] Evaluation of automatic sub-multiple mass calibration for sub-milligram weights at NMIJ2022

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[Journal Article] Investigating Stability of Si Sphere Surface Layer in Ambient-Vacuum Cyclic Measurements Using Ellipsometry2022

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[Journal Article] New Definitions of the Kilogram and the Mole: Paradigm Shift to the Definitions Based on Physical Constants2021

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Kuramoto Naoki 倉本直樹

KURAMOTO NAOKI 倉本直樹