Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–13 of 13 inventors

Rank Inventor Primary Company Patents
1 Tadashi Renbutsu Sanyo Electric Co. 3
2 Kazuyoshi Nakamura Seiko Epson 2
2 Katsuyuki Hashimoto Olympus 2
2 Hiroyasu Shimizu Sanyo Electric Co. 2
2 Hiroyuki Okita Sony 2
#6 Kunihiro Endo Mitsubishi Materials 1
#6 Motoshi Shirai Mitsubishi Materials 1
#6 Masashi Moteki Fujimori Kogyo Co. 1
#6 Terufumi Takayama Toray Industries 1
#6 Tomohiro Nishiwaki Sandisk Technologies 1
#6 Masaya Hisada Mitsubishi Materials 1
#6 Keizo Nagata Kyocera 1
#6 Takayuki Higuchi Denki Kagaku Kogyo 1