OKUBO Hikaru 大久保光

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Okubo Hikaru 大久保光

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Researcher Number	50906352
Other IDs
Affiliation (Current)	2026: 横浜国立大学, 大学院環境情報研究院, 准教授
Affiliation (based on the past Project Information) *help	2026: 横浜国立大学, 大学院環境情報研究院, 准教授 2024: 横浜国立大学, 大学院環境情報研究院, 准教授 2022 – 2023: 横浜国立大学, 大学院環境情報研究院, 助教 2021: 京都工芸繊維大学, 機械工学系, 助教
Review Section/Research Field	Principal Investigator Basic Section 18040:Machine elements and tribology-related / Sections That Are Subject to Joint Review: Basic Section18030:Design engineering-related , Basic Section18040:Machine elements and tribology-related / Basic Section 18030:Design engineering-related / 0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
Keywords	Principal Investigator トライボロジー / 分光分析 / オペランド計測 / 超低摩擦 / セルロースナノファイバー / マルチモーダル計測 / マルチモーダル同時計測 / ホストゲスト相互作用 / 自己修復 / 超分子 / 表面改質 / その場観察

Research Projects
(4 results)
Research Products
(28 results)

多因子その場同時計測に基づく濃厚ポリマーブラシの潤滑機構の階層的理解と制御Principal Investigator
- Principal Investigator
  
  大久保光
- Project Period (FY)
  2026 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 18040:Machine elements and tribology-related
  Basic Section 18030:Design engineering-related
  Sections That Are Subject to Joint Review: Basic Section18030:Design engineering-related , Basic Section18040:Machine elements and tribology-related
- Research Institution
  Yokohama National University
マルチモーダル動的界面計測による高濃度ナノセルロース成型体の超潤滑機構の解明Principal Investigator
- Principal Investigator
  
  大久保光
- Project Period (FY)
  2024 – 2025
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 18040:Machine elements and tribology-related
- Research Institution
  Yokohama National University
Self-healing and ultra-low friction tribo-systems through supramolecular host-guest interactionsPrincipal Investigator
- Principal Investigator
  
  Okubo Hikaru
- Project Period (FY)
  2022 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 18040:Machine elements and tribology-related
- Research Institution
  Yokohama National University
Revelation of lubrication mechanisms of 100% cellulose nanofiber moldings by a tribo-operand spectroscopic methodPrincipal Investigator
- Principal Investigator
  
  Okubo Hikaru
- Project Period (FY)
  2021 – 2022
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Review Section
  
  0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
- Research Institution
  Yokohama National University
  Kyoto Institute of Technology

All 2025 2024 2023 2022 2021

All Journal Article Presentation Book Patent

[Book] アグリバイオ　2022年4月号　農林水産物・食品のブランディング向上2022
- Author(s)
  大久保光他
- Total Pages
  50
- Publisher
  北隆館
- Data Source
  KAKENHI-PROJECT-21K20402
[Journal Article] Anti-icing properties of nonionic/hydrophilic concentrated polymer brushes and mechanistic insights via their swollen-state analysis2025
- Author(s)
  Tamamoto Ken、Kinose Yuji、Okubo Hikaru、Nakano Ken、Tsujii Yoshinobu
- Journal Title
  
  Communications Materials
  
  Volume: 6 Issue: 1 Pages: 1-9
- DOI
  10.1038/s43246-025-00732-3
- Data Source
  KAKENHI-PROJECT-24K17195
[Journal Article] In-situ vibrational spectroscopic observation for thermally activated structural changes of 100% cellulose nanofiber molding with ultralow friction2024
- Author(s)
  Okubo Hikaru、Ishikawa Tomori、Hashiba Hiromi、Inamochi Toru、Nakano Ken
- Journal Title
  
  Frontiers in Mechanical Engineering
  
  Volume: 10 Pages: 1-11
- DOI
  10.3389/fmech.2024.1422412
- Data Source
  KAKENHI-PROJECT-24K17195
[Journal Article] Tribological properties of 100% cellulose nanofiber (CNF) molding under dry- and boundary lubrication-conditions at CNF/steel contacts2023
- Author(s)
  Okubo H.、Nakae R.、Iba D.、Yamada K.、Hashiba H.、Nakano K.、Sato K.、Sasaki S.
- Journal Title
  
  Cellulose
  
  Volume: 30 Issue: 11 Pages: 6887-6905
- DOI
  10.1007/s10570-023-05309-2
- Data Source
  KAKENHI-PROJECT-22K14169
[Journal Article] Novel Environmentally Superior Tribomaterial with Superlow Friction: 100% Cellulose Nanofiber Molding2023
- Author(s)
  Okubo Hikaru、Hashiba Hiromi、Inamochi Toru、Sato Kaisei、Sasaki Shinya、Yamada Kazushi、Nakano Ken
- Journal Title
  
  Tribology Letters
  
  Volume: 71 Issue: 3 Pages: 1-10
- DOI
  10.1007/s11249-023-01754-z
- Data Source
  KAKENHI-PROJECT-22K14169
[Journal Article] Tribological properties of 100% cellulose nanofiber (CNF) molding under dry- and boundary lubrication-conditions at CNF/steel contacts2023
- Author(s)
  H. Okubo, R. Nakae, D. Iba, K. Yamada, H. Hashiba, K. Nakano, K. Sato, S. Sasaki
- Journal Title
  
  Cellulose
  
  Volume: -
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K20402
[Journal Article] Layered Structure and Wear Mechanism of Concentrated Polymer Brushes2023
- Author(s)
  Okubo Hikaru、Kagiwata Daiki、Nakano Ken、Tsujii Yoshinobu
- Journal Title
  
  Langmuir
  
  Volume: 39 Issue: 50 Pages: 18458-18465
- DOI
  10.1021/acs.langmuir.3c02751
- Data Source
  KAKENHI-PROJECT-22K14169
[Journal Article] Operando tribo-Raman spectroscopic observation for wear processes of superlow frictional concentrated polymer brushes at frictional interface2023
- Author(s)
  Okubo Hikaru、Kagiwata Daiki、Sasaki Shinya、Tsujii Yoshinobu、Nakano Ken
- Journal Title
  
  Polymer Testing
  
  Volume: 127 Pages: 108170-108170
- DOI
  10.1016/j.polymertesting.2023.108170
- Data Source
  KAKENHI-PROJECT-22K14169
[Journal Article] 高濃度セルロースナノファイバー成形体による次世代機械摺動材料の実現に向けた研究2022
- Author(s)
  大久保光
- Journal Title
  
  アグリバイオ (Agricultural Biotechnology)
  
  Volume: 6 Pages: 357-360
- Data Source
  KAKENHI-PROJECT-21K20402
[Patent] 摺動部材及びその製造方法2022
- Inventor(s)
  大久保光 , 橋場洋美, 稲用亨, 中込亮太, 射場大輔
- Industrial Property Rights Holder
  大久保光 , 橋場洋美, 稲用亨, 中込亮太, 射場大輔
- Industrial Property Rights Type
  特許
- Filing Date
  2022
- Data Source
  KAKENHI-PROJECT-21K20402
[Presentation] 原子間力顕微鏡による再生高分子の高次構造計測2025
- Author(s)
  大久保光
- Organizer
  廃プラスチックの高度物性再生の開発技術者養成に係る特別講座
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] 原子間力顕微鏡による再生プラスチックの高次構造計測2025
- Author(s)
  大久保光
- Organizer
  革新的プラスチックマテリアルリサイクルシンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] マルチモーダル同時計測に基づくポリマーブラシの階層構造と潤滑機構の理解2025
- Author(s)
  大久保光
- Organizer
  2024年度第2回トライボケミストリー研究会
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] マルチモーダル同時計測に基づく超低摩擦ポリマーブラシの層構造と潤滑機構の理解2025
- Author(s)
  大久保光
- Organizer
  第54回伸長プロセス専門委員会
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] マルチモーダル同時計測に基づく超低摩擦ポリマーブラシの層構造と潤滑機構の理解2024
- Author(s)
  大久保光
- Organizer
  CREST&さきがけナノ力学若手交流会第2回
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] Role of Probe Vertical Lift in Polymer Brush Friction and Wear2024
- Author(s)
  Hikaru Okubo
- Organizer
  49th Leeds-Lyon Symposium on Tribology 2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] 時空間分解operando-Raman計測による濃厚ポリマーブラシの摩擦界面構造の可視化2024
- Author(s)
  大久保光
- Organizer
  トライボロジー会議2024 春東京
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] トランススケール・オペランド計測に基づくソフト界面構造の階層的な理解2024
- Author(s)
  大久保光
- Organizer
  トライボロジー会議2024 秋名護
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] 電気インピーダンス法を用いた歯車噛合部の油膜形成と破断の実動作下計測2024
- Author(s)
  大久保光
- Organizer
  トライボロジー会議2024 秋名護
- Invited
- Data Source
  KAKENHI-PROJECT-24K17195
[Presentation] Superlow frictional and environmentally superior tribomaterial: 100% cellulose nanofiber molding2023
- Author(s)
  Hikaru Okubo
- Organizer
  International Tribology Conference 2023 Fukuoka
- Data Source
  KAKENHI-PROJECT-22K14169
[Presentation] 濃厚ポリマーブラシの固液界面構造と潤滑機構2023
- Author(s)
  大久保光
- Organizer
  第22回境界潤滑研究会
- Invited
- Data Source
  KAKENHI-PROJECT-22K14169
[Presentation] 超潤滑性SRT 材料の潤滑機構と新たな環境適合型SRT 材料の提案2023
- Author(s)
  大久保光
- Organizer
  東海トライボロジー研究会（第１１３回）
- Invited
- Data Source
  KAKENHI-PROJECT-22K14169
[Presentation] Operando-Raman Observation for Frictional Interface Structure of Concentrated Polymer Brushes2023
- Author(s)
  Hikaru Okubo
- Organizer
  International Tribology Conference 2023 Fukuoka
- Data Source
  KAKENHI-PROJECT-22K14169
[Presentation] Operando-Raman計測による濃厚ポリマーブラシの摩擦界面構造の観察2023
- Author(s)
  Hikaru Okubo
- Organizer
  トライボロジー会議2023 春東京
- Data Source
  KAKENHI-PROJECT-22K14169
[Presentation] 100% セルロースナノファイバー（CNF）成形体の潤滑特性に及ぼす摩擦調整剤の影響2022
- Author(s)
  大久保光
- Organizer
  トライボロジー会議2022 秋福井
- Data Source
  KAKENHI-PROJECT-21K20402
[Presentation] 摺動機械要素のバイオマス化を志向した高濃度セルロースナノファイバー成形体のトライボロジー応用に関する研究2022
- Author(s)
  大久保光
- Organizer
  プラスチック成型加工シンポジア京都
- Data Source
  KAKENHI-PROJECT-21K20402
[Presentation] 無潤滑－潤滑油環境下における100%セルロースナノファイバー（CNF）成形体のトライボロジー特性2021
- Author(s)
  大久保光, 中江亮太, 射場大輔, 森脇一郎, 山田和志, 佐々木信也
- Organizer
  日本機械学会第20回機素潤滑設計部門講演会 2021年12月
- Data Source
  KAKENHI-PROJECT-21K20402
[Presentation] セルロースナノファイバー成形体の基礎トライボロジー特性に関する研究2021
- Author(s)
  中江亮太, 大久保光, 山田和志, 射場大輔, 森脇一郎, 佐々木信也
- Organizer
  日本機械学会関西学生会2021年度学生員卒業研究発表講演会
- Data Source
  KAKENHI-PROJECT-21K20402

OKUBO Hikaru 大久保 光

Okubo Hikaru 大久保 光

Research Projects

Research Products

多因子その場同時計測に基づく濃厚ポリマーブラシの潤滑機構の階層的理解と制御Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

マルチモーダル動的界面計測による高濃度ナノセルロース成型体の超潤滑機構の解明Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Self-healing and ultra-low friction tribo-systems through supramolecular host-guest interactionsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Revelation of lubrication mechanisms of 100% cellulose nanofiber moldings by a tribo-operand spectroscopic methodPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Book] アグリバイオ 2022年4月号 農林水産物・食品のブランディング向上2022

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] Anti-icing properties of nonionic/hydrophilic concentrated polymer brushes and mechanistic insights via their swollen-state analysis2025

Author(s)

Journal Title

DOI

Data Source

[Journal Article] In-situ vibrational spectroscopic observation for thermally activated structural changes of 100% cellulose nanofiber molding with ultralow friction2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Tribological properties of 100% cellulose nanofiber (CNF) molding under dry- and boundary lubrication-conditions at CNF/steel contacts2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Novel Environmentally Superior Tribomaterial with Superlow Friction: 100% Cellulose Nanofiber Molding2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Tribological properties of 100% cellulose nanofiber (CNF) molding under dry- and boundary lubrication-conditions at CNF/steel contacts2023

Author(s)

Journal Title

Data Source

[Journal Article] Layered Structure and Wear Mechanism of Concentrated Polymer Brushes2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Operando tribo-Raman spectroscopic observation for wear processes of superlow frictional concentrated polymer brushes at frictional interface2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 高濃度セルロースナノファイバー成形体による次世代機械摺動材料の実現に向けた研究2022

Author(s)

Journal Title

Data Source

[Patent] 摺動部材及びその製造方法2022

Inventor(s)

Industrial Property Rights Holder

Industrial Property Rights Type

Filing Date

Data Source

[Presentation] 原子間力顕微鏡による再生高分子の高次構造計測2025

Author(s)

Organizer

OKUBO Hikaru 大久保光

Okubo Hikaru 大久保光

[Book] アグリバイオ　2022年4月号　農林水産物・食品のブランディング向上2022

[Presentation] 原子間力顕微鏡による再生プラスチックの高次構造計測2025

[Presentation] マルチモーダル同時計測に基づくポリマーブラシの階層構造と潤滑機構の理解2025

[Presentation] マルチモーダル同時計測に基づく超低摩擦ポリマーブラシの層構造と潤滑機構の理解2025