Kazuyuki Iwahashi

Patent Attorney, Patent Attorney Qualified to Serve in Infringement Proceedings

Practice Area
Technical Field

Chemistry, Biotechnology, Pharmaceuticals

Mr. Iwahashi specializes in chemistry, biology, pharmaceuticals, and diagnostics. During his 30-years tenure at the pharmaceutical company, Kyowa Hakko (Kyowa Hakko Kirin), and diagnostic company, Kyowa Medex, he has accumulated vast expertise and experience in developing IP strategies through dedication to IP-related activities, i.e., patent prosecution to enforcement. He also conducted negotiations on IP issues as well as oversaw the employees’ invention remuneration system and licensing.


Prosecution, opinions, trials for invalidation, and suits against trial decisions


M.S., Graduate School of Pharmaceutical Sciences, The University of Tokyo

Professional Background

Kyowa Hakko (Kyowa Hakko Kirin), Kyowa Medex