Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–16 of 16 inventors

Rank Inventor Primary Company Patents
1 Masatoshi Kokubo Brother Kogyo 5
2 Takafumi Naka Brother Kogyo 3
2 Hikaru Kaga Brother Kogyo 3
#4 Mitsuru Yamaguchi Toyota 2
#5 Kunihiro Matsuura Advantest 1
#5 Akitomo Yokoi Aica Kogyo Co. 1
#5 Koshi Suzuki Aica Kogyo Co. 1
#5 Kiyomi Kozuka Tsuchiya Co. 1
#5 Shunji Kajikawa Neomax Materials Co. 1
#5 Manabu Ushida Denso 1
#5 Hiroyuki Ogura Ntn 1
#5 Tsukasa Kikuchi Denso 1
#5 Kenji Ebihara Aica Kogyo Co. 1
#5 Kiyomi Kato Panasonic 1
#5 Chikage Noritake Denso 1
#5 Yosinobu Ito Sekisui Chemical Co. 1