Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–17 of 17 inventors

Rank Inventor Primary Company Patents
1 Seiichi Hirai Hitachi Kokusai Electric 3
2 Genji Inada Canon 2
2 Chisato Iino Lintec 2
2 Takeo Morimoto Hitachi 2
#5 Naoko Omuro Kabushiki Kaisha Toshiba 1
#5 Shigenori Fujio Nikon 1
#5 Toshio Endo Daicel Chemical Industries 1
#5 Yoshitada Doi Smc 1
#5 Toshio Matsuura Nikon 1
#5 Hiroya Ishizuka Mitsubishi Materials 1
#5 Yoichiro Kagawa Unknown 1
#5 Naoto Ishibashi Kowa Company 1
#5 Nobuhiko Akino Sumitomo Chemical 1
#5 Takehiko Yokomizo The New Industry Research Organization 1
#5 Yutaka Nohara Showa-Ika Kogyo Co. 1
#5 Hiroaki Saikatsu Dainichiseika Color & Chemicals Mfg. Co. 1
#5 Takashi Oi Nissan Motor Co. 1