Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–12 of 12 inventors

Rank Inventor Primary Company Patents
1 Tsutomu Aritsuka Nippon Beet Sugar Manufacturing., Co. 4
2 Hiroto Kikuchi Nippon Beet Sugar Manufacturing., Co. 3
3 Katsuya Honjyo Nippon Beet Sugar Manufacturing., Co. 1
3 Hiroaki Sakurai Unknown 1
3 Yasunobu Kawamoto Nippon Beet Sugar Manufacturing., Co. 1
3 Ikuo Igarashi Unknown 1
3 Hiroo Sadoya Nippon Beet Sugar Manufacturing., Co. 1
3 Etsuo Imura Nippon Beet Sugar Manufacturing., Co. 1
3 Kozo Fujisaki Unknown 1
3 Hidekazu Terasawa Nihon Tensaiseito Kabushiki Kaisha 1
3 Tetsuo Nanbu 1
3 Hideyuki Nagasawa Unknown 1