Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–5 of 5 inventors

Rank Inventor Primary Company Patents
1 Akira Kurooka Fuji Oil Holdings 1
1 Tomeo Umemoto Kubota 1
1 Shinsuke Mita Sumitomo Metal Industries 1
1 Yasushi Kawabata Fuji Oil Holdings 1
1 Katsuro Tsukamoto Japan Matex Co. 1