Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Tokujiro Okui Unknown 1
1 Nobuyuki Itaya Sumitomo Wiring Systems 1
1 Takashi Masugi Fujisawa Pharmaceutical Co. 1
1 Mitsuji Akazawa Teikoku Seiyaku Co. 1