Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–11 of 11 inventors

Rank Inventor Primary Company Patents
1 Daisuke Kumaki Semiconductor Energy Laboratory 9
2 Toshinao Yuki Tohoku Pioneer 3
3 Shuichi Seki Tohoku Pioneer 2
3 Kiyoshi Tsuchida Hitachi Yonezawa Electronics Co. 2
#5 Akinori Hayafuji Tohoku Pioneer 1
#5 Mitsuru Morimoto Rohm Co. 1
#5 Katsuhiro Kanauchu Tohoku Pioneer 1
#5 Yong-Jin Pu National University Corporation Yamagata University 1
#5 Yusuke Nakajima Tohoku Pioneer 1
#5 Makoto Takeishi Idemitsu Kosan Co. 1
#5 Jyunji Kido Osaka Titanium Technologies Co. 1