Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–6 of 6 inventors

Rank Inventor Primary Company Patents
1 Akihiko Hayashi Orient Chemical Industries Co. 2
1 Toshiyuki Onishi Canon 2
3 Toyozo Aoyama Hitachi 1
3 Mitsuhiro Kondo Ibiden Co. 1
3 Hiroaki Takebayashi Koyo Seiko Co. 1
3 Kazutoshi Takenaka Japan Polychem 1