![prof_fujii[1]](fujii.files/image002.jpg)
Yusaku FUJII, PhD
Professor, Gunma University
President, The
e-JIKEI Network Promotion Institute
Toward the world without lockdown
An engineering approach for fighting COVID-19 (English version)
Division
of Mechanical Science and Technology
Faculty
of Science and Technology
Gunma
University
Phone: +81-277-30-1756
Fax: +81-277-30-1707
Address: 1-5-1
Tenjin-cho, Kiryu, Gunma 376-8515, Japan
E-mail: fujii@gunma-u.ac.jp
E-mail:
YusakuFujii@yahoo.com
Web-site of Fujii lab: http://fglab.mst.st.gunma-u.ac.jp/main_e.htm
CV:
http://fglab.mst.st.gunma-u.ac.jp/prof_e.htm
TV & News papers:
http://fglab.mst.st.gunma-u.ac.jp/press/e-jikei/old/press.htm
Press release:
http://www.e-jikei.org/site/press.htm
Research topics:
http://www.e-jikei.org/fujii/research.htm
Conferences:
http://www.e-jikei.org/Conf/home.htm
Editor-in-Chief of 3 Journals
Journal of Technology and Social Science (JTSS)
Journal of Mechanical and Electrical Intelligent System (JMEIS)
Japanese Journal of Social Safety and Privacy (JpnJSSP, 社会安全とプライバシー)
+++++++++++++++++++++++++++++++++++
博士（工学）藤井 雄作
群馬大学 教授
【緊急プロジェクト】
自由外出マスクを普及させ，世界を救おう！ (日本語版)
【年賀状】
群馬大学 大学院理工学府 知能機械創製部門
〒376-8515
桐生市天神町1丁目5-1
Phone：(0277)30-1756,
FAX：(0277)30-1757
E-mail： fujii@gunma-u.ac.jp
E-mail： YusakuFujii@yahoo.com
藤井研究室： http://fglab.mst.st.gunma-u.ac.jp/home_page_j.html
略歴：
http://fglab.mst.st.gunma-u.ac.jp/prof.htm
ブログ：
http://www.e-jikei.org/BLOG_FUJII/Fujii.htm
新聞・ＴＶでの報道実績（関係者専用の隠しURL）：
http://fglab.mst.st.gunma-u.ac.jp/press/e-jikei/old/press.htm
（新聞・ＴＶの画像ファイルを閲覧できます．）
プレス関係者向け情報提供：
http://www.e-jikei.org/site/press.htm
アンケート調査関係者向け情報提供サイト：
http://www.e-jikei.org/survey/survey.htm
e自警関連の実証実験・社会実験：
http://www.e-jikei.org/site/exp_all.htm
研究紹介：
http://www.e-jikei.org/fujii/research.htm
+++ [予算獲得状況] +++
科研費・基盤B
(25K00735)
「電動ファン付き呼吸用保護具をロックダウン代替手段として活用した社会技術システム」
R7, 8, 9年度，代表，直接経費合計1,450万円
科研費・萌芽
(26K21972 )
「AGI時代における民主主義防衛のための倫理原則再構築と社会技術インフラ整備」
R8, 9, 10年度，代表(単独)，直接経費合計500万円
+++ [Recent
Publication / 最近の学術誌論文] +++
++ [AI Govenance] ++
[1] Y. Fujii, “Verifiable record of AI output for
privacy protection: public space watched by AI-connected cameras as a target
example”, AI & Society, Vol.40, pp.
3697–3706, 2025.
https://doi.org/10.1007/s00146-024-02122-8
[2] Y. Fujii, “Governing
AI Output in Autonomous Driving: Scalable Privacy Infrastructure for Societal
Acceptance ", Future Transportation,
Vol.5, No.3, 116, 2025.
https://doi.org/10.3390/futuretransp5030116
[3] Y.Fujii, “Smartphone-Based Sensing
Network for Emergency Detection: A Privacy-Preserving Framework for Trustworthy
Digital Governance”, Applied Sciences, Vol.16, No.2, 1032, 2026.
https://www.mdpi.com/2076-3417/16/2/1032
[4] Y. Fujii, “Governing
Continuous Smartphone Sensing: A Privacy-Preserving Path Toward Democratic
Homeland Security”, J. Homel. Secur. Emerg. Manag.
(Opinion), 2026.
https://doi.org/10.1515/jhsem-2026-0014
[5] Y. Fujii, “VRAIO as a
Safety Valve: Governing AI Platform Outputs at Societal Scale”,
AI and Ethics, Vol.6, 340, 2026.
https://doi.org/10.1007/s43681-026-01206-z
[6] Y. Fujii, “No Trust Without
Trust Infrastructure: The Extended Kelvin Principle and Its Application to AI
Output Governance”, AI, Vol.7, No.6,
218, 2026.
https://www.mdpi.com/2673-2688/7/6/218
++[AGI
problem] ++
[1] Y. Fujii, “Lessons from the Roman Empire: ‘Bread and
Circuses’ as a Model for Democracy in the AGI Age", AI & Society, Vol.41, pp.467-468, 2026.
https://doi.org/10.1007/s00146-025-02449-w
++ [Measures
for the Next Pandemic (1&2)] ++
++ [1. Privacy-Preserving
Measurement Infrastructure] ++
[1] Y. Fujii, “From Measurement Failure to Privacy Infrastructure: Reframing Contact
Tracing Governance for the Next Pandemic”, JMIR (IF8.2,
Q1) accepted
https://preprints.jmir.org/preprint/99645/accepted
++ [2. PAPR
for Everyone] ++
[1] Y. Fujii, “An Engineering Alternative to Lockdown During COVID-19 and Other
Airborne Infectious Disease Pandemics: Feasibility Study”, JMIR Biomedical Engineering, Vol.9, e54666, 2024.
https://biomedeng.jmir.org/2024/1/e54666/
[2]Y. Fujii, “Examination of the requirements for powered air-purifying respirator
(PAPR) utilization as an alternative to lockdown”, Scientific
Reports, Vol.15, 1217, 2025.
https://www.nature.com/articles/s41598-024-82348-0
[3] Y. Fujii, A. Takita, S. Hashimoto and K. Amagai, “Estimation of Respiratory
States Based on a Measurement Model of Airflow Characteristics in PAPR Using
Differential Pressure and PWM Control Signals: In the Development of a
Public-Oriented PAPR as an Alternative to Lockdown Measures”, Sensors, Vol.25, No.9, 2939, 2025.
https://doi.org/10.3390/s25092939
[4] Y. Fujii, “The Real-Time Estimation of
Respiratory Flow and Mask Leakage in a PAPR Using a Single
Differential-Pressure Sensor and Microcontroller-Based Smartphone Interface in
the Development of a Public-Oriented Powered Air-Purifying Respirator as an
Alternative to Lockdown Measures”, Sensors, Vol.25, No.17,
5340, 2025.
https://doi.org/10.3390/s25175340
[5] Y.Fujii,
“Time-managed PAPR use enables a balanced approach to infection
control and personal freedom”, Scientific
Reports, Vol.16, 2878, 2026.
https://doi.org/10.1038/s41598-025-32625-3
[7] Y. Fujii, “Reframing Pandemic
Preparedness: Why Positive-Pressure Exposure Control Merits Formal Public
Health Evaluation”, JMIR Public Health and
Surveillance, Vol.12, e90211, 2026.
http://dx.doi.org/10.2196/90211
++
[Precision measurement / The Levitation Mass Method (LMM) ] ++
[1] Y.Fujii,
“Towards Dynamic Calibration
of Force Transducers: Self Error Correction Using the Second Derivative of
Sensor Output”, Experimental Techniques,
2025.
https://doi.org/10.1007/s40799-025-00860-y
[2] P. Youplao, N. Pornsuwancharoen, Y.
Fujii, “Noise-Robust
Frequency Estimation via Overlapped Sampling-Intervals Zero-Crossing Fitting”, IEEE Trans. Instrum. Meas. (Online first). 2026.
https://doi.org/10.1109/TIM.2026.3693432
Call
for Paper
AI
Journal
Special Issue: Governing
Trustworthy AI Outputs in a Sensor-Dense Society: Privacy, Auditability and
Responsible Deployment
+++ [Patent / 特許] +++