Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–12 of 12 inventors

Rank Inventor Primary Company Patents
1 Hideki Hirakawa Kabushiki Kaisha Toshiba 4
2 Kazuhito Hamada Nihon Micronics 2
2 Eichi Osato Nihon Micronics 2
2 Yoshihito Hiyama Namiki Seimitsu Houseki 2
#5 Hisao Narita Nihon Micronics 1
#5 Takashi Akiniwa Nihon Micronics 1
#5 Masahisa Tazawa Nihon Micronics 1
#5 Tsuyoshi Temma Enax 1
#5 Kazumasa Ueyama Showa-Ika Kogyo Co. 1
#5 Yasuyuki Ishibashi Arthrex 1
#5 Motoi Sasaki Cosmo Oil Co. 1
#5 Kiyotoshi Miura Nihon Micronics 1