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USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–3 of 3 inventors

Rank Inventor Primary Company Patents
1 Hiroaki Shimizu Tokyo Ohka Kogyo Co. 3
2 Toshiyuki Hasegawa Kanzaki Kokyukoki Mfg. Co. 1
2 Luo Cheng Xerox 1

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