Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–7 of 7 inventors

Rank Inventor Primary Company Patents
1 Katsuyuki Totsu 3
2 Yasuhiro Yamauchi Sanyo Electric Co. 2
2 Satoshi Nagai Mitsubishi Gas Chemical Company 2
#4 Kazuhisa Fukuhara Kao 1
#4 Morihiro Sudo Daikyo Seiko 1
#4 Yukio Noda Kokusai Denshin Denwa Co. 1
#4 Yoshikazu Ogura Kao 1