Yamaguchi Wataru 山口渡

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山口渡ヤマグチワタル

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Researcher Number	30292775
Other IDs
Affiliation (Current)	2025: 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 2020 – 2022: 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 2017 – 2018: 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 2016: 国立研究開発法人産業技術総合研究所, 磁性粉末冶金研究センター, 主任研究員 2005 – 2007: 独立行政法人産業技術総合研究所, サステナブルマテリアル研究部門, 研究員
Review Section/Research Field	Principal Investigator Basic Section 26010:Metallic material properties-related / Physical properties of metals/Metal-base materials Except Principal Investigator Basic Section 26050:Material processing and microstructure control-related / Nanomaterials/Nanobioscience
Keywords	Principal Investigator コーティング / 保磁力 / 低酸素プロセス / 粉末コーティング / Sm2Fe17N3 / 異方性磁界 / 異方性磁場 / 結晶磁気異方性 / 結晶場 / 磁気異方性 … More / 金属物性 / 構造・機能材料 / 磁性 / 被膜 / 焼結磁石 / 粒界 / サマリウム鉄窒素 / 粒界制御 … More Except Principal Investigator 表面微細構造制御 / 低酸素粉末冶金 / MnBi / ナノコンポジット / 希土類フリー永久磁石 / 層間化合物 / 遷移金属 / 電解合成 / 触媒 / 酵素 / ナノ粒子 Less

NdFeB磁石を超える高耐熱MnBi系希土類フリーナノコンポジット永久磁石の創製
- Principal Investigator
  
  王建
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 26050:Material processing and microstructure control-related
- Research Institution
  National Institute of Advanced Industrial Science and Technology
The reason why the coercivity of the magnet material Sm2Fe17N3 is too lowPrincipal Investigator
- Principal Investigator
  
  Yamaguchi Wataru
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 26010:Metallic material properties-related
- Research Institution
  National Institute of Advanced Industrial Science and Technology
Enhancement in coercivity of Sm-Fe-N sintered magnet by precise control of grain boundaryPrincipal Investigator
- Principal Investigator
  
  Yamaguchi Wataru
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Physical properties of metals/Metal-base materials
- Research Institution
  National Institute of Advanced Industrial Science and Technology
生体酵素の機能を模倣したナノ物質変換システムの開発
- Principal Investigator
  
  多井豊
- Project Period (FY)
  2005 – 2007
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  Nanomaterials/Nanobioscience
- Research Institution
  National Institute of Advanced Industrial Science and Technology

All 2019 2018 2017 2016 2008 2007 2005 Other

All Journal Article Presentation

[Journal Article] Role of Surface Iron Oxides in Coercivity Deterioration of Sm2Fe17N3 Magnet Associated with Low Temperature Sintering2019
- Author(s)
 Yamaguchi Wataru、Soda Rikio、Takagi Kenta
- Journal Title
 
 MATERIALS TRANSACTIONS
 
 Volume: 60 Issue: 3 Pages: 479-483
- DOI
 10.2320/matertrans.M2018358
- NAID
 130007603973
- ISSN
 1345-9678, 1347-5320
- Year and Date
 2019-03-01
- Language
 English
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-16K06715
[Journal Article] Adsorption States of Dinitrogen on Small Tungsten Nanoclusters2008
- Author(s)
  Wataru Yamaguchi, et. al.
- Journal Title
  
  Chemical Physics Letters 455(4-6)
  
  Pages: 261-261
- Data Source
  KAKENHI-PROJECT-17651078
[Journal Article] Geometries of small tungsten clusters2005
- Author(s)
  Wataru Yamaguchi
- Journal Title
  
  Chemical Physics 316
  
  Pages: 45-52
- Data Source
  KAKENHI-PROJECT-17651078
[Journal Article] Low-Temperature Formation of Nitrous Oxide from Dinitrogen, Mediated by Supported Tungsten Nanoclusters
- Author(s)
  Wataru Yamaguchi
- Journal Title
  
  Journal of the American Chemical Society (accepted for publication)
- Data Source
  KAKENHI-PROJECT-17651078
[Presentation] Coating low-oxygen Sm2Fe17N3 magnet powders with nonmagnetic metal elements by using DC magnetron sputtering method2019
- Author(s)
 Wataru Yamaguchi、Rikio Soda、Kenta Takagi
- Organizer
 2019 Joint MMM-Intermag Conference
- Int'l Joint Research
- Data Source
 KAKENHI-PROJECT-16K06715
[Presentation] 低酸素Sm2Fe17N3粉末への非磁性金属コーティングと保磁力への影響2018
- Author(s)
 山口渡、曽田力央、荒川希、高木健太
- Organizer
 粉体粉末冶金協会平成30年度春季大会
- Data Source
 KAKENHI-PROJECT-16K06715
[Presentation] 低酸素Sm2Fe17N3磁粉への非磁性金属のスパッタコーティング2018
- Author(s)
 山口渡、荒川希、曽田力央、高木健太
- Organizer
 日本金属学会 2018年秋期講演大会
- Data Source
 KAKENHI-PROJECT-16K06715
[Presentation] 粒界制御を目的としたSm-Fe-N磁石粉末への非磁性ナノ被膜の形成2017
- Author(s)
  山口渡、荒川希、神野美穂、曽田力央、高木健太、尾崎公洋
- Organizer
  粉体粉末冶金協会平成29年度春季大会
- Data Source
  KAKENHI-PROJECT-16K06715
[Presentation] Surface Analysis using X-ray Photoelectron Spectroscopy of Sm2Fe17N3 Magnet Powder Prepared by a Low-oxygen Milling Process2016
- Author(s)
  山口渡、曽田力央、神野美穂、高木健太、尾崎公洋
- Organizer
  REPM2016
- Place of Presentation
  ダルムシュタット工科大学（ドイツ）
- Year and Date
  2016-08-31
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06715
[Presentation] Sm2Fe17N3磁石粉末の非磁性金属コーティング2016
- Author(s)
  山口渡、曽田力央、神野美穂、高木健太、尾崎公洋
- Organizer
  粉体粉末冶金協会平成28年度春季大会
- Place of Presentation
  京都工芸繊維大学（京都市）
- Year and Date
  2016-05-25
- Data Source
  KAKENHI-PROJECT-16K06715
[Presentation] アークプラズマ蒸着法によるSm-Fe-N磁石粉末への非磁性金属コーティング2016
- Author(s)
  山口渡、曽田力央、神野美穂、高木健太、尾崎公洋
- Organizer
  日本金属学会2016年秋期講演大会
- Place of Presentation
  大阪大学（豊中市）
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-16K06715
[Presentation] 孤立したタングステンナノクラスター上での窒素の分子吸着状態2007
- Author(s)
  山口渡, 他
- Organizer
  ナノ学会第5回大会
- Place of Presentation
  つくば市
- Year and Date
  2007-05-21
- Data Source
  KAKENHI-PROJECT-17651078

1. 多井豊 (20357338)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. 大橋文彦 (70356658)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 王建 (80792069)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Yamaguchi Wataru 山口 渡

山口 渡 ヤマグチ ワタル

Research Projects

Research Products

Co-Researchers

NdFeB磁石を超える高耐熱MnBi系希土類フリーナノコンポジット永久磁石の創製

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

The reason why the coercivity of the magnet material Sm2Fe17N3 is too lowPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Enhancement in coercivity of Sm-Fe-N sintered magnet by precise control of grain boundaryPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

生体酵素の機能を模倣したナノ物質変換システムの開発

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Role of Surface Iron Oxides in Coercivity Deterioration of Sm<sub>2</sub>Fe<sub>17</sub>N<sub>3</sub> Magnet Associated with Low Temperature Sintering2019

Author(s)

Journal Title

DOI

NAID

ISSN

Year and Date

Language

Data Source

[Journal Article] Adsorption States of Dinitrogen on Small Tungsten Nanoclusters2008

Author(s)

Journal Title

Data Source

[Journal Article] Geometries of small tungsten clusters2005

Author(s)

Journal Title

Data Source

[Journal Article] Low-Temperature Formation of Nitrous Oxide from Dinitrogen, Mediated by Supported Tungsten Nanoclusters

Author(s)

Journal Title

Data Source

[Presentation] Coating low-oxygen Sm<sub>2</sub>Fe<sub>17</sub>N<sub>3</sub> magnet powders with nonmagnetic metal elements by using DC magnetron sputtering method2019

Author(s)

Organizer

Data Source

[Presentation] 低酸素Sm<sub>2</sub>Fe<sub>17</sub>N<sub>3</sub>粉末への非磁性金属コーティングと保磁力への影響2018

Author(s)

Organizer

Data Source

[Presentation] 低酸素Sm<sub>2</sub>Fe<sub>17</sub>N<sub>3</sub>磁粉への非磁性金属のスパッタコーティング2018

Author(s)

Organizer

Data Source

[Presentation] 粒界制御を目的としたSm-Fe-N磁石粉末への非磁性ナノ被膜の形成2017

Author(s)

Organizer

Data Source

[Presentation] Surface Analysis using X-ray Photoelectron Spectroscopy of Sm2Fe17N3 Magnet Powder Prepared by a Low-oxygen Milling Process2016

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] Sm2Fe17N3磁石粉末の非磁性金属コーティング2016

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] アークプラズマ蒸着法によるSm-Fe-N磁石粉末への非磁性金属コーティング2016

Author(s)

Yamaguchi Wataru 山口渡

山口渡ヤマグチワタル