Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–10 of 10 inventors

Rank Inventor Primary Company Patents
1 Masato Koyama Kabushiki Kaisha Toshiba 10
2 Kiyofumi Sakaguchi Canon 4
3 Haruo Kawakami Fuji Electric Co. 3
#4 Takahiro Matusaki Fujitsu Limited 2
#4 Takaichi Shimozato Sankyo Holdings Co. 2
#4 Takayoshi Moriyama Toshiba Lighting & Technology 2
#7 Ryouhei Yamamoto Fumoto Giken Co. 1
#7 Gen-Ichirou Ohta Sumitomo Electric Industries 1
#7 Koichi Handa Nissan Motor Co. 1
#7 Atsushi Mizutome Canon 1