Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Tetsuya Shimomura Hitachi 2
2 Kazuya Sugimura Fujimi Incorporated 1
2 Hiroyuki Ohba Kureha Chemical Industry Co. 1
2 Makoto Sato Nipro 1