Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–7 of 7 inventors

Rank Inventor Primary Company Patents
1 Kunihiro Harada Japan Synthetic Rubber 2
1 Koichi Kikuchi Seiko Epson 2
1 Yushi Iwashita Ajinomoto Co. 2
#4 Keiko Kawamoto National Agricultural Research Organization 1
#4 Kazuaki Kondo Fujitsu Limited 1
#4 Yoshiharu Matahira Yaizu Suisankagaku Industry Co. 1
#4 Shigeru Hagiwara Nikon 1