Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Tomiya Mori Tohoku Ricoh Co. 2
1 Teiji Sato Mizusawa Industrial Chemicals 2
3 Kouichi Ohtaka Ricoh Company 1
3 Toshiki Shirahata Hitachi Industrial Equipment Systems Co. 1