1984

Graduated from the Faculty of Pharmaceutical Sciences, The University of Tokyo

1985

Joined the Japan Patent Office (JPO)

2002-2005

Judicial Research Official, Tokyo High Court

2005

Judicial Research Official, Intellectual Property High Court

2005-2008

Director, Pharmaceutical Compounds Division, Patent Examination Department III, JPO

2008-2010

Director, Biotechnology Division, Patent Examination Department III, JPO

2010-2011

Director, Examination Standards Office, JPO

2012-2013

Chief Administrative Judge (Pharmaceuticals), Trial and Appeal Department, JPO

2013-2015

Executive Chief Administrative Judge (Biotechnology), Trial and Appeal Department, JPO

2015-2017

Director-General, Patent Examination Department III (Chemistry, Life Science, and Material Science) , JPO

2017-2019

Director-General, Trial and Appeal Department, JPO

Jul 2019

Retired from the JPO; Registered as a Patent Attorney

Aug 2019

Joined SOEI Patent & Law Firm

Apr 2021

Registered as a Specific Infringement Litigation Representation Attorney

"Registration of Extension of Patent Term," New Trends in Business Law: Latest Trends in IP Law and Bankruptcy Law – Essays in Honor of Professor Eiji Katayama's 70th Birthday, Seirin Shoin (2020)

"Description Requirements for Specifications and Claims," Toward the Development of an IP-Based Nation – Essays in Honor of Professor Minoru Takeda's 80th Birthday, Japan Institute for Promoting Invention and Innovation (2013)

"Revised Examination Guidelines for Extension of Patent Term," AIPPI, Vol.57, No.10 (2012)

"Use Inventions" and "Inventions Including Limitations by Numerical Values or Parameters," Legal Theory and Issues in Patent Examination and Trials (Supervised by Minoru Takeda), Japan Institute of Invention and Innovation (2002)

"Toward Appropriate Use of Divisional Applications: From Basics to Applications," Yamaguchi University (July 2024)

"The Role of Trials and Appeals," Administrative Judge Course Training (FY2022–FY2025), Japan Patent Office

"System for Extension of Patent Term," Pharmaceutical Industry Legal Affairs Research Group (February 2022)

"Extension of Patent Term," Tokyo Pharmaceutical Manufacturers Association (February 2021)

"Invalidation Trial System (Case Study)," JPO/IPR Training (Appeal Course) (FY2020–FY2025), JIPII Asia-Pacific Industrial Property Center

"Patent Examination Practice (Judgment/Inventive Step) – Pharmaceuticals," JPO/IPR Training (FY2023), JIPII Asia-Pacific Industrial Property Center

"Invalidation Trial Practice," JPO/IPR Training (Patent Examination Practice (OPET) Course) (FY2020–FY2022), JIPII Asia-Pacific Industrial Property Center

"Invalidation Trial System," JPO/IPR Training (Appeal Course) (FY2019), JIPII Asia-Pacific Industrial Property Center

Adjunct Professor at the Waseda University Graduate School of Law (2013-2014)