Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–5 of 5 inventors

Rank Inventor Primary Company Patents
1 Hiroyuki Ohtsuka Shin-Etsu Chemical Co. 1
1 Seiichi Shundo Hitachi 1
1 Toshiro Atobe Cimeo Precision Co. 1
1 Fumitoshi Yamashita Sumitomo Electric Industries 1
1 Katsunori Sakuragi Sumitomo Electric Industries 1