KEIO RESEARCHERS INFORMATION SYSTEM

Other Affiliation 【 Display / hide 】

Other Affiliation 【 Display / hide 】

• Graduate School of Media and Governance

Career 【 Display / hide 】

Career 【 Display / hide 】

• 2006.07

  -

  2011.07

  Ministry of Defense, Warheads and Fuzes Research Section, Ballistics Research Division, Ground Systems Research Center, Reseach Scientist

• 2011.08

  -

  2013.06

  Ministry of Defense, Department of Guided Missile Development, Technical Research and Development Institute, Reseach Scientist

• 2013.07

  -

  2015.09

  Ministry of Defense, Firearms Research Section, Systems DIvision, Ground Systems Research Center, Technical Research and Development Institute, Senior Research Scientist

• 2015.10

  -

  2017.03

  Acquisition, Technology and Logistics Agency, Firepower Systems Research Section, Systems DIvision, Ground Systems Research Center, Senior Research Scientist

• 2017.04

  -

  2021.03

  Acquisition, Technology and Logistics Agency, Planning Office, Technology Planning Division, Department of Technology Strtegy, Chief Technology Strategist

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Academic Background 【 Display / hide 】

Academic Background 【 Display / hide 】

• 1997.04

  -

  1999.03

  The University of Tokyo, College of Arts and Sciences Junior Division

• 1999.04

  -

  2001.03

  The University of Tokyo, The Faculty of Engineering, Department of Mathematical Engineering and Information Physics

• 2001.04

  -

  2003.03

  The University of Tokyo, Graduate School of Information Science and Technology, Information Physics and Computing

• 2003.04

  -

  2006.03

  The University of Tokyo, Graduate School of Information Science and Technology, Department of Information Physics and Computing

Research Areas 【 Display / hide 】

Research Areas 【 Display / hide 】

• Humanities & Social Sciences / Sociology of science, history of science and technology (Military Technology)

• Humanities & Social Sciences / Sociology of science, history of science and technology (Technology Policy)

• Humanities & Social Sciences / International relations (Science and Technology Cooperation)

• Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Measurement engineering

• Informatics / Computer system (Computer Architecture)

Research Keywords 【 Display / hide 】

Research Keywords 【 Display / hide 】

• Systems Engineering

• Project Management

• Mission Engineering

• Technology Strategy

• Technology Policy

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Books 【 Display / hide 】

Books 【 Display / hide 】

• ウクライナ危機以後 : 国際社会の選択と日本 = After the Ukraine crisis

  加茂, 具樹, 廣瀬, 陽子, 森, 聡, 渡辺, 将人, 鶴岡, 路人, 土屋, 大洋, 藤田, 元信, 古谷, 知之, 神保, 謙, 東洋経済新報社, 2025.08,  Page： 295p

  • CiNii Research

• Technological Innovation and Security: The Impact on the Strategic Environment in East Asia

  The National, Institute for, Defense Studies, Japan, The National Institute for Defense Studies, Japan, 2022

  Scope: Technological Innovation and Security: The Impact on the Strategic Environment in East Asia

• Technology vs. Strategy

  Motonobu FUJITA, クロスメディア・パブリッシング, インプレス (発売), 2017

  • CiNii Research

Papers 【 Display / hide 】

Papers 【 Display / hide 】

• ミサイル破片が示唆するロシア兵器の低コスト化と継戦能力の実相-Kh-31PD・Kh-59MK2・Kh-101・Geran-2残骸の産業考古学的考察-

  藤田元信, 高橋彰, 村井琴音

  防衛技術ジャーナル 46 ( 5 )  2026

  Lead author,  ISSN  0919-8555

• Research on Search Engine Optimization Using Generative AI-Efficient Crafting and Validation of SEO Content-

  佐瀬巧平, 藤田元信

  プロジェクトマネジメント学会研究発表大会予稿集(CD-ROM) 45th 2025

• Feasibility of Using Generative AI to Promote Rapid Implementation of Emerging Technologies-As a Support Tool for the Concept Development Stage-

  藤田元信

  プロジェクトマネジメント学会研究発表大会予稿集(CD-ROM) 44th 2025

• Interdisciplinary Educational Initiatives for the Promotion of Mission Engineering-A Case Study on Fostering Practical Thinking in the Field of National Security-

  藤田元信, 宮下空唯, 神津宏明

  電子情報通信学会技術研究報告(Web) 125 ( 57(SANE2025 1-26) )  2025

  ISSN  2432-6380

• RAND Corporation's role in U.S. defense acquisitions

  Motonobu Fujita

  防衛技術ジャーナル  ( 510 ) 4 - 13 2023.09

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Reviews, Commentaries, etc. 【 Display / hide 】

Reviews, Commentaries, etc. 【 Display / hide 】

• Introduce to research: IED disablement with high-power microwave pulse

  藤田 元信

  Defense technology journal (防衛技術協会)  31 ( 4 ) 26 - 33 2011.04

  ISSN  0919-8555

  • CiNii Research

• COMPACT FLUX COMPRESSION GENERATORS FOR ELECTROMAGNETIC PULSE MUNITIONS (DOWNSIZING AND PERFORMANCE ENHANCEMENT)

  藤田 元信, 玉置 亮太郎, 尾崎 元美

  防衛省技術研究本部技報 ([防衛省技術研究本部])   ( 7023 ) 1 - 19 2009.01

  • CiNii Research

• Optimization and Evaluation of Power Performance by Using On-Chip RAM

  TAKAHASHI CHIKAFUMI, SATO MITSUHISA, TAKAHASHI DAISUKE, BOKU TAISUKE, NAKAMURA HIROSHI, KONDO MASAAKI, FUJITA MOTONOBU

  IPSJ SIG Notes (Information Processing Society of Japan (IPSJ))  2005 ( 80 ) 43 - 48 2005.08

  ISSN  0919-6072

  　View Summary

  In recently years, power consumption per performance has become more important. We propose to improve power performance by optimizing data transfer with on-chip RAM which is a substitution of cache. To confirm effectivity of our proposal, we evaluate power consumption with SH4 commercial processor. The evaluation indicates that using on-chip RAM makes data transfer optimal, and the optimization reduces about 15.2% EDP (Energy Delay Product) at the maximum. If SH4's on-chip RAM supports DMA between the on-chip RAM and main memory, it is estimated that the optimization reduces about 26.3% EDP at the maximum.

  • CiNii Research

• A Leakage-Power-Aware Compilation Method for Software Controlled On-chip Memory Architecture

  FUJITA MOTONOBU, KONDO MASAAKI, NAKAMURA HIROSHI

  IPSJ SIG Notes (Information Processing Society of Japan (IPSJ))  2005 ( 19 ) 205 - 210 2005.03

  ISSN  0919-6072

  　View Summary

  As semiconductor technology scales down, the static power due to leakage current becomes dominant in the total power dissipation of microprocessors. We have proposed a static power reduction method for Software-Controlled Memory, which cut off the electric power supply of the unused SRAM cells. As for Software-Controlled Memory, there is a trade-off between the execution time and the area which are activated. Good trade-off point may change when energy consumption of other part on microprocessors are considered together. In this paper, we modeled the energy consumption of a microprocessor which has Software-Controlled Memory in order to find minimize the energy consumption of a total chip.

  • CiNii Research

• A Leakage-Power-Aware Compilation Method for Software Controlled On-chip Memory Architecture

  FUJITA MOTONOBU, KONDO MASAAKI, NAKAMURA HIROSHI

  IPSJ SIG Notes (Information Processing Society of Japan (IPSJ))  2005 ( 19 ) 205 - 210 2005.03

  　View Summary

  As semiconductor technology scales down, the static power due to leakage current becomes dominant in the total power dissipation of microprocessors. We have proposed a static power reduction method for Software-Controlled Memory, which cut off the electric power supply of the unused SRAM cells. As for Software-Controlled Memory, there is a trade-off between the execution time and the area which are activated. Good trade-off point may change when energy consumption of other part on microprocessors are considered together. In this paper, we modeled the energy consumption of a microprocessor which has Software-Controlled Memory in order to find minimize the energy consumption of a total chip.

  • CiNii Research

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Presentations 【 Display / hide 】

Presentations 【 Display / hide 】

• Deep Interdiction in the 21st Century: How Do Prompt Strike Capabilities Contribute to a Multidomain Campaign

  Lieutenant General Eric Wesley, Dr Tom Karako, Dr Motonobu Fujita

  RUSI Prompt Strike Conference 2021, 

  2021.05

  , 

  Symposium, workshop panel (nominated)

• [Special Talk] R&D Vision - Toward Realization of Multi-Domain Defense Force and Beyond -- Electromagnetic Spectrum (EMS) : Challenges and Roadmap --

  Fumiri Usami, Motonobu Fujita

  Technical Committee on Space, Aeronautical and Navigational Electronics (SANE), 

  2020.04

  , 

  Oral presentation (invited, special)

• R&D vision to Toward Realization of Multi-domain Defense Force and Beyond

  Motonobu Fujita

  RUSI Missile Defence and Space Conference 2020, 

  2020.02

  , 

  Symposium, workshop panel (nominated)

• Parallel confocal microscope using vertical-cavity surface-emitting laser array

  Motonobu Fujita, Makoto Naruse, Masatoshi Ishikawa

  Microscopy and Microanalysis 2001, 

  2001.08

  , 

  Oral presentation (general)

Research Projects of Competitive Funds, etc. 【 Display / hide 】

Research Projects of Competitive Funds, etc. 【 Display / hide 】

• 高性能低消費電力マイクロプロセッサ向け自動最適化コンパイラの研究

  2005

  日本学術振興会, 科学研究費助成事業 特別研究員奨励費, 特別研究員奨励費, No Setting

  　View Summary

  今年度は、本研究の目的に沿ったプロセッサシミュレータを構築し、多くのプログラムをプロセッサシミュレータ上で実行し、プログラムの挙動と性能・消費電力の関係を明らかにすることを目標としていた。プロセッサシミュレータの構築の過程で、消費電力のうち、スタティック消費電力の温度依存性がプロセッサ全体の消費電力に無視できない影響を与えていることがわかった。スタティック消費電力の原因であるリーク電流が温度に指数的に依存しているためである。特にオンチップ記憶部分においてはこの問題は深刻である。そこで、本研究が目的とする高性能化・低消費電力化を両立するためには、温度によるリーク電流の増減を考慮に入れ、消費電力を最適化する必要があると考えるに至った。今後の研究においてもスタティック消費電力の温度依存性を考慮したシミュレーション環境を備えることは不可欠と考えられるため、プロセッサの温度を考慮にいれたシミュレータを構築した。
  温度に依存するスタティック消費電力を抑える最適化手法の一つとして、ソフトウェア可制御メモリを備えたプロセッサにおいて、温度に応じてソフトウェア可制御メモリの利用率を変化させることで消費電力を削減する手法を検討した。あらかじめプロセッサ温度と、消費エネルギーを最小化するソフトウェア可制御メモリ利用率の関係をコンパイル時に静的に求めておき、プログラム動作中にその利用率をプロセッサチップの温度にあわせて動的に変化させ、常に消費電力を最小にする手法を提案した。初期評価の結果から、プログラム実行中のプロセッサ温度によらず一定のソフトウェア可制御メモリを使用した場合に比べ、提案手法ではプロセッサ全体で最大数%の消費電力を削減できることがわかった。さらに、今後のプロセス技術の進歩によりスタティック消費電力の寄与が大きくなると、提案手法の効果はより増大することもあきらかとなった。

Intellectual Property Rights, etc. 【 Display / hide 】

Intellectual Property Rights, etc. 【 Display / hide 】

• センサ敷設装置、音源物体推定システム及び方法

  Date applied： 特願2015-104698  2015.05 

  Date announced： 特開2016-215908  2016.12 

  Patent

• センサ敷設装置、音源物体推定システム及び方法

  Date applied： 特願2015-104698  2015.05 

  Date issued： 特許第6014884号  2016.10

  Patent

• 過渡的インダクタンス計測方法及び装置

  Date applied： 特願2010-005884  2010.01 

  Date announced： 特開2011-145158  2011.07 

  Patent

• 過渡的インダクタンス計測方法及び装置

  Date applied： 特願2010-005884  2010.01 

  Date announced： 特開2011-145158  2011.07 

  Date issued： 特許第4918685号  2012.02

  Patent

• 半導体装置および半導体装置の電源電圧/クロック周波数制御方法

  Date applied： 特願2004-001605  2004.01 

  Date announced： 特開2005-196430  2005.07 

  Patent

Awards 【 Display / hide 】

Awards 【 Display / hide 】

• Prize award, the 4th class

  2019.11, Acquisition, Technology and Logistics Agency (ATLA), Drafting the R&D Vision (2019)

• Prize award, the 5th class

  2017.11, Acquisition, Technology and Logistics Agency (ATLA), A feasibility study for lightweight combat vehicles

• Prize award, the 5th class

  2012.01, Technical Research and Development Institute, Japan Ministry of Defense, Analysis work in the infrared measurement project in the nuclear disaster dispatch mission

• Prize award, the 4th class

  2009.11, Technical Research and Development Institute, Japan Ministry of Defense, Inventation of a measurement method for electromagnetic pulse generation

Courses Taught 【 Display / hide 】

Courses Taught 【 Display / hide 】

• MASTER SEMINAR

  2026

• PROJECT EVALUATION

  2026

• ACADEMIC PROJECT(GLOBAL GOVERNANCE AND REGIONAL STRATEGY (REGIONAL))

  2026

• GRADUATION PROJECT 2

  2026

• GRADUATION PROJECT 1

  2026

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Courses Previously Taught 【 Display / hide 】

Courses Previously Taught 【 Display / hide 】

• Understanding Mission Engineering

  Keio University

  2025.02

  -

  Present

  , 

  Undergraduate (specialized)

• Project Evaluation

  Keio University

  2024.10

  -

  Present

• Understanding Japanese Defense Indutrial Base

  Keio University

  2024.08

  -

  Present

  , 

  Undergraduate (specialized)

• Seminar A "Science, Technology and Strategic Decision-Making"

  Keio University

  2024.04

  -

  Present

  , 

  Undergraduate (liberal arts)

• Science and Technology Policy

  Keio University

  2024.04

  -

  Present

  , 

  Undergraduate (specialized)

Social Activities 【 Display / hide 】

Social Activities 【 Display / hide 】

• Strategic Choices Workshop - Crafting National Security Strategy in the Cold War era

  Keio University Shonan Fujisawa Campus (SFC), Camp 2025, 

  , 

  2025.08

Media Coverage 【 Display / hide 】

Media Coverage 【 Display / hide 】

• 特攻兵器「桜花」は、日本軍の「忖度」が生んだ哀しい失敗作だった

  現代ビジネス, 2017.07

• 74年前の米軍の空爆戦略から日本人が学ぶべき「急所を見抜く力」

  現代ビジネス, 2017.07

• ミッドウェー海戦は、日本人が生んだ技術に日本が敗けた戦いだった

  現代ビジネス, 2017.06

• 関東えひめ人 - 電磁パルスの弾薬研究 - 防衛省技術研究本部技官 藤田元信さん=宇和島市出身

  愛媛新聞 (地方面（８）) , 2015.01

Academic Activities 【 Display / hide 】

Academic Activities 【 Display / hide 】

• 2025 Autumn National Conferences

  The Society of Project Management,  (北九州市立大学 北方キャンパス) , 

  2025.08

• Localization of PMI Knowledge Asset in Japan

  Project Management Institute, 

  2018.07

• Localization of PMI Knowledge Asset in Japan

  Project Management Institute, 

  2015.06

  -

  2015.07

Memberships in Academic Societies 【 Display / hide 】

Memberships in Academic Societies 【 Display / hide 】

• Directed Energy Professional Society (DEPS), 

  2022.10

  -

  Present

• Association of Old Crows (AOC), 

  2021.09

  -

  Present

• THE SOCIETY OF PROJECT MANAGEMENT, 

  2015.07

  -

  Present

• Japan Techno-Economics Society, 

  2015.02

  -

  2024.03

• Project Management Institute (PMI), 

  2014.08

  -

  Present

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