Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–6 of 6 inventors

Rank Inventor Primary Company Patents
1 Yoshimitsu Sakaguchi Toyo Boseki Kabushiki Kaisha 2
2 Katsumi Shigeta Takii & Company Limited 1
2 Kazue Kikuchi Hitachi Ulsi Systems Co. 1
2 Kuniyasu Shiro Toray Industries 1
2 Nobuo Fukushima Canon 1
2 Yutaka Machida Sumitomo Electric Industries 1