Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–20 of 20 inventors

Rank Inventor Primary Company Patents
1 Makoto Muto Daiichi Pharmaceutical Co. 3
1 Satoru Nakajima Canon 3
3 Teruhiko Ide Tosoh 2
3 Masahiko Katsu Nissan Motor Co. 2
3 Tatsumi Tsuchiya HGST 2
3 Yumi Hayashi Kabushiki Kaisha Toshiba 2
3 Tetsuya Izumi Jatco 2
#8 Susumu Amano Kaneka 1
#8 Kenji Hirai Sagami Chemical Research Center 1
#8 Tatsuya Kikuchi Mitsubishi Engineering-Plastics 1
#8 Aki Maeda Sagami Chemical Research Institute 1
#8 Tadashi Watai Oiles 1
#8 Osamu Matsukawa Kamaya Electric Co. 1
#8 Taishi Furukawa Tosoh 1
#8 Kenichi Nagao Tsubakimoto Chain 1
#8 Martin Franke Siemens Aktiengesellschaft 1
#8 Hideyuki Misono Hitachi 1
#8 Naomichi Sakai International Superconductivity Technology Center 1
#8 Masayoshi Kitamura Hitachi 1
#8 Teruo Segawa Nissan Motor Co. 1