Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Hirokazu Yamada Denso 9
1 Akira Kato Sumitomo Rubber Industries 9
3 Takashi Koyama The Yokohama Rubber Co. 5
#4 Kenichi Yamauchi Canon 2
#5 Koji Fujiwara Kubota 1
#5 Jun Yoshida Toyota 1
#5 Shinichi Ueda Canon 1
#5 Ken Ono Alpine Electronics 1