Chemistry (general), Biotechnology, Food, Water Treatment, Civil Engineering, Automotive Components
OSAMU YAMAGUCHI
Mr. Yamaguchi has many years of experience at a patent firm, primarily handling the drafting of patent applications in the field of chemistry, as well as prosecution and both inbound and outbound patent practices. In addition to chemistry, he has also worked on patent applications in areas such as food and beverages, machinery, and civil engineering. By combining this extensive patent firm experience with his prior role managing intellectual property at a manufacturer, he is able to cover the entire process—from patent liaison to drafting applications—which he considers his key strength.
Profession
Patent Attorney
Admissions
Japan Patent Attorneys Association (2023)
Membership
Kanae-kai, a community of graduates of the Core Personnel Training Program of the Industrial Cyber Security Center, Information-technology Promotion Agency, Japan
Areas of Expertise
Professional Experience
2009 – 2025 Tashiro & Etoh patent Bureau
2001 – 2009 Pokka Corporation
Education
2001 Nagoya University, Bioagricultural Sciences
1999 Nagoya University, Applied Biosciences
Publications
“Examining the Logic of Description Requirements Useful for Patent Invalidation Trials and Other Proceedings” (Monthly Patent, Japan Patent Attorneys Association, 2022, Vol.75, No.9, pp. 33–44, Osamu Yamaguchi (co-authored))
Lectures
“Survey and Study on Examination Practices Concerning Use Inventions:
— Use Inventions Related to Food Applications and Those Defined by Mechanisms of Action —”
(JBA Intellectual Property Committee & Japan Patent Attorneys Association Joint Seminar), February 2024
“Analysis of Intellectual Property and Business Strategies of Agricultural and Environmental Biotechnology Startups”
(BioJapan 2025 Exhibitor Presentation), October 9, 2025
Languages
Japanese, English



