Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–6 of 6 inventors

Rank Inventor Primary Company Patents
1 Keiji Kuroda J.S.T. Mfg. Co. 4
2 Kazuhiko Sumi Mitsubishi Electric 1
2 Akihiro Yamada Brother Kogyo 1
2 Yoshihiro Shimizu Oji Paper Co. 1
2 Shigeyuki Takahashi Toyoda Gosei Co. 1
2 Hisao Yamaguchi Toyoda Gosei Co. 1