Takeuchi Akihisa 竹内晃久

… Alternative Names

竹内晃久タケウチアキヒサ

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Researcher Number	70426526
Other IDs
Affiliation (Current)	2025: 公益財団法人高輝度光科学研究センター, 分光・イメージング推進室, 主幹研究員
Affiliation (based on the past Project Information) *help	2023 – 2024: 公益財団法人高輝度光科学研究センター, 散乱・イメージング推進室, 主幹研究員 2021 – 2024: 公益財団法人高輝度光科学研究センター, 分光推進室, 主幹研究員 2019 – 2021: 公益財団法人高輝度光科学研究センター, 分光・イメージング推進室, 主幹研究員 2018: 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 主幹研究員 2005: 高輝度光科学研究センター, SPring-8・利用研究促進部門, 研究員
Review Section/Research Field	Except Principal Investigator Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields / Basic Section 51030:Pathophysiologic neuroscience-related / Petrology/Mineralogy/Science of ore deposit
Keywords	Except Principal Investigator 放射光 / き裂伝搬 / き裂進展 / 真空 / 内部起点型破壊 / ギガサイクル疲労 / SPring-8 / 脳 / 三次元構造 / 神経細胞 … More / 脳組織 / ナノCT / 統合失調症 / き裂発生 / き裂伝播 / 疲労 / fractal dimension / subtraction method / microtomography / cometary dust / Stardust / micrometeorites / interplanetary dust particles / 空隙率 / 密度 / 3次元構造 / コンドリュール / X線マイクロトモグラフィー / 宇宙度 / スプリング8 / スフェリュール / 宇宙塵 / フラクタル / マイクロトモグラフィー / 超炭素質微隕石 / フラクタル次元 / 差分法 / マイクロトモグラフイー / 彗星塵 / スターダスト / 微隕石 / 惑星間塵 Less

Nanometer-scale 3D analysis of brain tissue of schizophrenia cases in the U.S.
- Principal Investigator
  
  水谷隆太
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 51030:Pathophysiologic neuroscience-related
- Research Institution
  Tokai University
超高サイクル疲労における内部起点型破壊評価手法の確立
- Principal Investigator
  
  中村孝
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
- Research Institution
  Hokkaido University
Elucidation of the mechanism of very high cycle fatigue and the development of its evaluation method based on synchrotron radiation micro/nano- CT
- Principal Investigator
  
  Nakamura Takashi
- Project Period (FY)
  2018 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
- Research Institution
  Hokkaido University
A study of three-dimensional structures of interplanetary dust by imaging x-ray microtomography.
- Principal Investigator
  
  TSUCHIYAMA Akira
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Petrology/Mineralogy/Science of ore deposit
- Research Institution
  Osaka University

All 2023 2022 2021 2020 2019 2018

All Journal Article Presentation

[Journal Article] High-energy x-ray nanotomography at SPring-82023
- Author(s)
  Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro、Tsuritani Hiroyuki
- Journal Title
  
  AIP Conf. Proc.
  
  Volume: 2990 Pages: 040012-040012
- DOI
  10.1063/5.0168573
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K27491
[Journal Article] Characterization of internal fatigue crack initiation in Ti‐6Al‐4V alloy via synchrotron radiation X‐ray computed tomography2023
- Author(s)
  Yoshinaka Fumiyoshi、Nakamura Takashi、Oguma Hiroyuki、Fujimura Nao、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro
- Journal Title
  
  Fatigue & Fracture of Engineering Materials & Structures
  
  Volume: － Issue: 6 Pages: 1-10
- DOI
  10.1111/ffe.13957
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H04529, KAKENHI-PROJECT-19H02034
[Journal Article] 高強度金属材料の超高サイクル疲労における内部微小き裂の発生・進展挙動2023
- Author(s)
  中村孝, 藤村奈央, 薛高格, 髙橋航圭, 竹内晃久, 上椙真之, 上杉健太朗
- Journal Title
  
  SPring-8/ SACLA利用者情報
  
  Volume: 28 Pages: 119-123
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21H04529
[Journal Article] Structural aging of human neurons is opposite of the changes in schizophrenia2023
- Author(s)
  Mizutani Ryuta、Saiga Rino、Yamamoto Yoshiro、Uesugi Masayuki、Takeuchi Akihisa、Uesugi Kentaro、Terada Yasuko、Suzuki Yoshio、De Andrade Vincent、De Carlo Francesco、Takekoshi Susumu、Inomoto Chie、Nakamura Naoya、Torii Youta、Kushima Itaru、Iritani Shuji、Ozaki Norio、Oshima Kenichi、Itokawa Masanari、Arai Makoto
- Journal Title
  
  PLOS ONE
  
  Volume: 18 Issue: 6 Pages: e0287646-e0287646
- DOI
  10.1371/journal.pone.0287646
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K07595, KAKENHI-PROJECT-20K20602, KAKENHI-PROJECT-21H04815, KAKENHI-PROJECT-23K27491
[Journal Article] Full-life growth behavior of a naturally initiated internal fatigue crack in beta titanium alloy via in situ synchrotron radiation multiscale tomography2023
- Author(s)
  Xue Gaoge、Nakamura Takashi、Fujimura Nao、Takahashi Kosuke、Oguma Hiroyuki、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 170 Pages: 107571-107571
- DOI
  10.1016/j.ijfatigue.2023.107571
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H04529, KAKENHI-PROJECT-22KJ0059, KAKENHI-PROJECT-19H02034
[Journal Article] Development of multiscale x-ray tomography at SPring-8 BL47XU2023
- Author(s)
  Uesugi Kentaro、Yasutake Masahiro、Takeuchi Akihisa
- Journal Title
  
  AIP Conf. Proc.
  
  Volume: 2990 Pages: 040019-040019
- DOI
  10.1063/5.0168128
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K27491
[Journal Article] Experimental Approach for Clarifying Initiation and Growth Behaviors of Internal Fatigue Cracks Using Synchrotron Radiation Multiscale X-ray Computed Tomography2023
- Author(s)
  Nakamura Takashi、Xue Gaoge、Kon Yuma、Fujimura Nao、Yamazaki Takuya、Tonozaki Nobuyuki、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro
- Journal Title
  
  Materials Performance and Characterization
  
  Volume: 12 Issue: 2 Pages: 20230023-20230023
- DOI
  10.1520/mpc20230023
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22KJ0059, KAKENHI-PROJECT-21H04529
[Journal Article] Detection of small internal fatigue cracks in Ti‐6Al‐4V via synchrotron radiation nanocomputed tomography2022
- Author(s)
  Xue Gaoge、Tomoda Yuta、Nakamura Takashi、Fujimura Nao、Takahashi Kosuke、Yoshinaka Fumiyoshi、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro
- Journal Title
  
  Fatigue & Fracture of Engineering Materials & Structures
  
  Volume: 45 Issue: 9 Pages: 2693-2702
- DOI
  10.1111/ffe.13765
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H04529, KAKENHI-PROJECT-22KJ0059
[Journal Article] Three-dimensional Observation of Small Fatigue Cracks Growth Process in a Beta Titanium Alloy Ti-22V-4Al using Multiscale Synchrotron Radiation Computed Tomography2022
- Author(s)
  Xue Gaoge、Nakamura Takashi、Fujimura Nao、Oguma Hiroyuki、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro
- Journal Title
  
  Proceedings of the 7th International Conference on Advanced Steels, ICAS 2022
  
  Volume: － Pages: 132-135
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H04529
[Journal Article] Initiation and propagation of small fatigue crack in beta titanium alloy observed through synchrotron radiation multiscale computed tomography2022
- Author(s)
  Xue Gaoge、Nakamura Takashi、Fujimura Nao、Takahashi Kosuke、Oguma Hiroyuki、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro
- Journal Title
  
  Engineering Fracture Mechanics
  
  Volume: 263 Pages: 108308-108308
- DOI
  10.1016/j.engfracmech.2022.108308
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H04529, KAKENHI-PROJECT-22KJ0059, KAKENHI-PROJECT-19H02034
[Journal Article] Detection of small internal fatigue cracks of TI-6Al-4V in the very high cycle regime via synchrotron radiation nanocomputed tomography2021
- Author(s)
  Nakamura Takashi, Fujimura Nao, Tomoda Yuta, Xue Gaoge, Yoshinaka Fumiyoshi, Takeuchi Akihisa, Uesugi Masayuki, Uesugi Kentaro
- Journal Title
  
  Proceedings of the 8th Engineering Integrity Society International Conference on Durability & Fatigue, 2021
  
  Volume: － Pages: 349-357
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18H03748
[Journal Article] High-energy x-ray nanotomography introducing an apodization Fresnel zone plate objective lens2021
- Author(s)
  A. Takeuchi, K. Uesugi, M. Uesugi, H. Toda, K. Hirayama, K. Shimizu, K. Matsuo and T. Nakamura
- Journal Title
  
  Review of Scientific Instruments
  
  Volume: 92 Issue: 2 Pages: 023701-023701
- DOI
  10.1063/5.0020293
- NAID
  120007187739
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17H01328, KAKENHI-PROJECT-18H03748
[Journal Article] Recent progress in synchrotron radiation 3D-4D nano-imaging based on X-ray full-field microscopy2020
- Author(s)
  Takeuchi Akihisa, Suzuki Yoshio
- Journal Title
  
  Microscopy
  
  Volume: 69 Issue: 5 Pages: 259-279
- DOI
  10.1093/jmicro/dfaa022
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18H03748
[Journal Article] 放射光顕微CT によるTi-6Al-4V の内部疲労き裂発生過程2019
- Author(s)
  中村孝, 友田悠太, 藤村奈央, 吉中奎貴, 小熊博幸, 竹内晃久, 上椙真之,上杉健太朗
- Journal Title
  
  日本機械学会M&M2019 材料力学カンファレンス講演論文集
  
  Volume: -
- NAID
  130007846525
- Data Source
  KAKENHI-PROJECT-18H03748
[Journal Article] 放射光顕微CT による高強度金属内部の高分解能非破壊観察2019
- Author(s)
  今佑宇真，中村孝，藤村奈央，吉中奎貴，髙橋航圭，竹内晃久，上椙真之，上杉健太朗
- Journal Title
  
  日本機械学会M&M2019 材料力学カンファレンス講演論文集
  
  Volume: -
- NAID
  130007846701
- Data Source
  KAKENHI-PROJECT-18H03748
[Journal Article] Initiation and growth behaviour of small internal fatigue cracks in Ti‐6Al‐4V via synchrotron radiation microcomputed tomography2019
- Author(s)
  Yoshinaka Fumiyoshi、Nakamura Takashi、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro
- Journal Title
  
  Fatigue & Fracture of Engineering Materials & Structures
  
  Volume: 42 Issue: 9 Pages: 2093-2105
- DOI
  10.1111/ffe.13085
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K14853, KAKENHI-PROJECT-18H03748
[Journal Article] Ti-6Al-4V における表面および内部微小疲労き裂の開閉口挙動2019
- Author(s)
  友田悠太,中村孝,藤村奈央,吉中奎貴,小熊博幸, 竹内晃久,上椙真之,上杉健太朗
- Journal Title
  
  日本材料学会第68期学術講演会講演論文集
  
  Volume: - Pages: 77-78
- Data Source
  KAKENHI-PROJECT-18H03748
[Journal Article] Nondestructive Multiscale X-Ray Tomography by Combining Microtomography and High-Energy Phase-Contrast Nanotomography2018
- Author(s)
  Akihisa Takeuchi, Kentaro Uesugi, Masayuki Uesugi, Fumiyoshi Yoshinaka and Takashi Nakamura
- Journal Title
  
  Microscopy and Microanalysis
  
  Volume: 24 Issue: S2 Pages: 106-107
- DOI
  10.1017/s1431927618012928
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18H03748
[Presentation] A study of the significance of fractographic features on internal fatigue fracture in titanium alloys via synchrotron radiation computed tomography2023
- Author(s)
  Gaoge Xue, Nao Fujimura, Takashi Nakamura, Kosuke Takahashi, Hiroyuki Oguma, Akihisa Takeuchi, Masayuki Uesugi, Kentaro Uesugi
- Organizer
  The Advanced Technology in Experimental Mechanics and International DIC Society Joint Conference 2023 (ATEM-iDICs '23)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04529
[Presentation] A naturally initiated internal fatigue crack growth process in beta titanium alloy using in situ synchrotron radiation multiscale computed tomography2023
- Author(s)
  Gaoge Xue, Nao Fujimura, Takashi Nakamura, Kosuke Takahashi, Hiroyuki Oguma, Akihisa Takeuchi, Masayuki Uesugi, Kentaro Uesugi
- Organizer
  13th International Fatigue Congress, Fatigue 2022+1
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04529
[Presentation] Detection of Small Internal Fatigue Cracks in 17-4PH Stainless Steel via Synchrotron Radiation Computed Tomography2023
- Author(s)
  Takashi Nakamura, Nao Fujimura, Gaoge Xue, Gen Igarashi, Kosuke Takahashi, Akihisa Takeuchi, Masayuki Uesugi, Kentaro Uesugi
- Organizer
  The Advanced Technology in Experimental Mechanics and International DIC Society Joint Conference 2023 (ATEM-iDICs '23)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04529
[Presentation] High-Energy X-Ray Nanotomography at SPring-82022
- Author(s)
  Takeuchi Akihisa
- Organizer
  15th International Conference on X-ray Microscopy (XRM2022)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04529
[Presentation] Detection of small internal fatigue cracks of Ti-6Al-4V in the very high cycle regime via synchrotron radiation nanocomputed tomography2021
- Author(s)
  T. Nakamura, N. Fujimura, Y. Tomoda, G. Xue, F. Yoshinaka, A. Takeuchi, M. Uesugi, K. Uesugi
- Organizer
  Fatigue 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H03748
[Presentation] Initiation and propagation process of small fatigue crack in beta titanium alloy via multiscale synchrotron radiation computed tomography2021
- Author(s)
  Gaoge Xue, Takashi Nakamura, Nao Fujimura, Hiroyuki Oguma, Akihisa Takeuchi, Masayuki Uesugi, Kentaro Uesugi
- Organizer
  Eighth International Conference on Very High Cycle Fatigue (VHCF8)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04529
[Presentation] Nondestructive observation of internal fatigue crack initiation in Ti-6Al-4V via synchrotron radiation X-ray CT2021
- Author(s)
  Fumiyoshi Yoshinaka, Takashi Nakamura, Hiroyuki Oguma, Nao Fujimura, Akihisa Takeuchi, Masayuki Uesugi, Kentaro Uesugi
- Organizer
  Eighth International Conference on Very High Cycle Fatigue (VHCF8)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04529
[Presentation] A trial for detecting small fatigue cracks initiating from non-metallic inclusions in precipitation-hardened stainless steel2021
- Author(s)
  Sourav Kumar Modi, Nao Fujimura, Kosuke Takahashi, Takashi Nakamura, Akihisa Takeuchi, Masayuki Uesugi, Kentaro Uesugi
- Organizer
  Eighth International Conference on Very High Cycle Fatigue (VHCF8)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04529
[Presentation] 放射光を用いるX線マイクロCTの基礎と最前線2020
- Author(s)
  竹内晃久
- Organizer
  日本化学会第101春季年会
- Invited
- Data Source
  KAKENHI-PROJECT-18H03748
[Presentation] 放射光顕微CT による高強度金属内部の高分解能非破壊観察2019
- Author(s)
  今佑宇真，中村孝，藤村奈央，吉中奎貴，髙橋航圭，竹内晃久，上椙真之，上杉健太朗
- Organizer
  日本機械学会M&M2019 材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-18H03748
[Presentation] 放射光顕微CT によるTi-6Al-4V の内部疲労き裂発生過程2019
- Author(s)
  中村孝, 友田悠太, 藤村奈央, 吉中奎貴, 小熊博幸, 竹内晃久, 上椙真之,上杉健太朗
- Organizer
  日本機械学会M&M2019 材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-18H03748
[Presentation] Ti-6Al-4V における表面および内部微小疲労き裂の開閉口挙動2019
- Author(s)
  友田悠太,中村孝,藤村奈央,吉中奎貴,小熊博幸, 竹内晃久,上椙真之,上杉健太朗
- Organizer
  日本材料学会第68期学術講演会
- Data Source
  KAKENHI-PROJECT-18H03748
[Presentation] Nondestructive Multiscale X-Ray Tomography by Combining Microtomography and High-Energy Phase-Contrast Nanotomography2018
- Author(s)
  Akihisa Takeuchi
- Organizer
  International Conference on X-Ray Microscopy (XRM2018)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H03748
[Presentation] Initiation and propagation processes of internal fatigue cracks in Ti-6Al-4V visualized by synchrotron radiation μCT imaging2018
- Author(s)
  Takashi Nakamura, Fumiyoshi Yoshinaka, Akihisa Takeuchi, Kentaro Uesugi, Masayuki Uesugi
- Organizer
  12th International Fatigue Congress, FATIGUE 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H03748

1. UESUGI Kentaro (80344399)

# of Collaborated Projects: 3 results

# of Collaborated Products: 22 results
2. Nakamura Takashi (30237408)

# of Collaborated Projects: 2 results

# of Collaborated Products: 22 results
3. 戸田裕之 (70293751)

# of Collaborated Projects: 2 results

# of Collaborated Products: 1 results
4. 藤村奈央 (40732988)

# of Collaborated Projects: 2 results

# of Collaborated Products: 20 results
5. 古谷佳之 (60354255)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. 小熊博幸 (80515122)

# of Collaborated Projects: 2 results

# of Collaborated Products: 12 results
7. TSUCHIYAMA Akira (90180017)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. NOGUCHI Takaaki (40222195)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. NAKAMURA Tomoki (20260721)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. NAKANO Tsukasa (90212092)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 上椙真之 (20426521)

# of Collaborated Projects: 1 results

# of Collaborated Products: 12 results
12. 水谷隆太 (70272482)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 鳥居洋太

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 吉中奎貴

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Takeuchi Akihisa 竹内 晃久

竹内 晃久 タケウチ アキヒサ

Research Projects

Research Products

Co-Researchers

Nanometer-scale 3D analysis of brain tissue of schizophrenia cases in the U.S.

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

超高サイクル疲労における内部起点型破壊評価手法の確立

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Elucidation of the mechanism of very high cycle fatigue and the development of its evaluation method based on synchrotron radiation micro/nano- CT

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

A study of three-dimensional structures of interplanetary dust by imaging x-ray microtomography.

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] High-energy x-ray nanotomography at SPring-82023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Characterization of internal fatigue crack initiation in Ti‐6Al‐4V alloy via synchrotron radiation X‐ray computed tomography2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 高強度金属材料の超高サイクル疲労における内部微小き裂の発生・進展挙動2023

Author(s)

Journal Title

Data Source

[Journal Article] Structural aging of human neurons is opposite of the changes in schizophrenia2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Full-life growth behavior of a naturally initiated internal fatigue crack in beta titanium alloy via in situ synchrotron radiation multiscale tomography2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Development of multiscale x-ray tomography at SPring-8 BL47XU2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Experimental Approach for Clarifying Initiation and Growth Behaviors of Internal Fatigue Cracks Using Synchrotron Radiation Multiscale X-ray Computed Tomography2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Detection of small internal fatigue cracks in Ti‐6Al‐4V via synchrotron radiation nanocomputed tomography2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Three-dimensional Observation of Small Fatigue Cracks Growth Process in a Beta Titanium Alloy Ti-22V-4Al using Multiscale Synchrotron Radiation Computed Tomography2022

Author(s)

Journal Title

Data Source

[Journal Article] Initiation and propagation of small fatigue crack in beta titanium alloy observed through synchrotron radiation multiscale computed tomography2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Detection of small internal fatigue cracks of TI-6Al-4V in the very high cycle regime via synchrotron radiation nanocomputed tomography2021

Author(s)

Journal Title

Takeuchi Akihisa 竹内晃久

竹内晃久タケウチアキヒサ