Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Koichi Watanabe Hitachi 8
2 Hirokazu Tanaka Canon 7
3 Susumu Saito Hitachi 6
#4 Akira Ueno Olympus 2
#4 Yasuo Watanabe Hitachi 2
#4 Yoshiharu Inoue NS Sumikin Stainless 2
#4 Toshiya Watanabe Toto 2
#8 Yuji Koyama Seed Co. 1

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