Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–9 of 9 inventors

Rank Inventor Primary Company Patents
1 Izumi Komatsu Sankyo Seiki Mfg. Co. 2
2 Tomokazu Kaibuki Nhk Spring Co. 1
2 Koji Fukuyama Nagano Nidec 1
2 Masaaki Ogata Sankyo Seiki Seisakusho 1
2 Kazuhiko Tsubota Olympus Optical Co. 1
2 Tanehira Amano Nhk Spring Co. 1
2 Yoshihiro Kobayashi Seiko Epson 1
2 Hiroaki Hiraguri Unknown 1
2 Hisaya Nakagawa Sankyo Seiki Mfg. Co. 1