Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–15 of 15 inventors

Rank Inventor Primary Company Patents
1 Takayuki Tsuji Honda Motor Co. 4
2 Junnosuke Sekiguchi Nippon Mining & Metals Co. 3
2 Takeshi Meguro Hitachi Cable 3
#4 Atsushi Yabe Nippon Mining & Metals Co. 2
#5 Tetsuhiro Miyamoto Nok Klueber Co. 1
#5 Keisuke Kokin Unimatec Co. 1
#5 Yoshihiro Kuzumaki Nippon Mektron 1
#5 Takashi Enokida Nippon Mektron 1
#5 Yoshio Kajiya Jx Nippon Mining & Metals 1
#5 Yoshimi Yanai Hitachi 1
#5 Jun Kanega Unimatec Co. 1
#5 Jiro Yurimoto Nok Klueber Co. 1
#5 Rumiko Sakurai Toray Fine Chemicals Co. 1
#5 Ryuichi Nagase Jx Nippon Mining & Metals 1
#5 Hideki Kurita Nippon Mining & Metals Co. 1