Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–3 of 3 inventors

Rank Inventor Primary Company Patents
1 Masayasu Katoh Nicca Chemical Co. 1
1 Shingo Yasuda Hokuriku Seiyaku Co. 1
1 Yasuo Ito Hokuriku Seiyaku Co. 1