Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–7 of 7 inventors

Rank Inventor Primary Company Patents
1 Kazufumi Yanagihara Nissan Chemical Industries 1
1 Tasuku Kikuchi Tokyo Rope Mfg. Co. 1
1 Masanori Kumagai Tokyo Rope Mfg. Co. 1
1 Yasumasa Sawada Kabushiki Kaisha Toshiba 1
1 Toshiro Miyake Nissan Chemical Industries 1
1 Kazuhiro Yamagishi Nissan Chemical Industries 1
1 Masanori Nishioka Nissan Chemical Industries 1