Mr. Yoichi KUMAZAKI

Chief Patent Attorney

Mr. Yoichi KUMAZAKI received his Bachelor’s Degree in Bio-Chemistry from Mie University, Japan in 1989.

During 1989 and 1990, he worked as a bio-chemical researcher in a food processing company. From 1990 to 2000, Mr. KUMAZAKI worked as a paralegal and a specialist of IP business and management in one of the major and traditional patent firms in Nagoya, Japan. In 2001, he started his career as a patent attorney (Registration No. 11979). He became totally independent and set up his own firm, Nissin International Patent Firm in Nissin, Aichi, Japan, handling cases in the field of Chemistry, Biology, Mechanical & Electrical Engineering, etc.

Mr. KUMAZAKI provides a variety of services on patent-related affairs including patent drafting, prosecution, responding to office actions, handling rejection, invalidation, administrative litigation, infringement litigation and infringement analysis. Mr. KUMAZAKI is a member of Japan Patent Attorneys Association.

Mr. KUMAZAKI's working languages include Japanese and English. Especially English and other foreign languages are handled by his language specialists.

Commendation for Contributions to the Association
Japan Patent Attorneys Association — July 1, 2021

Mr. Yoichi KUMAZAKI was commended for his dedicated service to the administration of the Japan Patent Attorneys Association and his contributions to its development.

Distinguished Service Award — Tokai Branch(Central Japan)
Japan Patent Attorneys Association — June 24, 2022

Mr. Yoichi KUMAZAKI was recognized for his active participation in the activities of the Tokai Branch, his contributions to promoting intellectual property activities in the region, and his service to the development of the Branch.

Awards and Recognition
Commendation for Longstanding Service to the Patent Attorney Profession
Japan Patent Attorneys Association — July 1, 2026

Mr. Yoichi KUMAZAKI was commended for his many years of dedicated service as a patent attorney and his contributions to the development of the patent attorney profession in Japan.