Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Toshiaki Hirota Mitsui Chemicals 2
2 Akira Shinozaki Konishiroku Photo Industry Co. 1
2 Motoyuki Inai Nok Klueber Co. 1
2 Wataru Sawaguchi Nok Klueber Co. 1