Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–20 of 20 inventors

Rank Inventor Primary Company Patents
1 Yoshiyuki Kato Casio Computer Co. 5
2 Takayuki Kawahara Hitachi 4
3 Yasushi Ogimoto Fuji Electric Co. 3
#4 Masaharu Tomioka Olympus 2
#5 Hisanori Akiyama Hoya 1
#5 Motohiro Iwasaki Bridgestone 1
#5 Takaaki Kobayashi Smc 1
#5 Hirofumi Taguchi Hitachi 1
#5 Yasumi Tsutsumi Renesas Technology 1
#5 Satoshi Shimokata Seikagaku 1
#5 Toshio Ueno Nidec Sankyo 1
#5 Hidetoshi Sumi Casio Computer Co. 1
#5 Fumiaki Ochiai Casio Computer Co. 1
#5 Koichi Ashiga Hitachi Device Engineering Co. 1
#5 Osamu Uchino Bridgestone 1
#5 Shinji Nakata Chisso 1
#5 Takatoshi Haraguchi Casio Computer Co. 1
#5 Ichiro Kono Hitachi 1
#5 Yasuhiko Takahshi Hitachi Ulsi Systems Co. 1
#5 Koji Tamura Nitto Chemical Industry Co. 1