Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–10 of 10 inventors

Rank Inventor Primary Company Patents
1 Noriko Kajiura Nippon Kayaku 3
1 Kan Sano Sumida 3
3 Masahiko Hoshi Fujitsu Limited 1
3 Yoshiharu Kuwana Napra Co. 1
3 Mamoru Usami Tdk 1
3 Tetsuro Kitayama Ntt Docomo 1
3 Ken'ichi Fujii Canon 1
3 Susumu Innan Mitsubishi Gas Chemical Company 1
3 Masao Shirai Kawasaki Plant Systems Kabushiki Kaisha 1
3 Hironori Kawakami Idemitsu Kosan Co. 1