Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Masafumi Yoshihiro Hitachi Maxell 7
2 Kenzo Takemura Hitachi Chemical Company 1
2 Takuya Nagamine Nihon Micro Coating Co. 1
2 Masatoshi Matsumura Asama Chemical Co. 1