Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Kazuyoshi Yoshida Shin-Etsu Polymer Co. 3
2 Shuichi Chikamatsu Hitachi High-Technologies 2
2 Yoshiki Kida Nikon 2
2 Kenichi Ninomiya Wacom Co. 2
#5 Wataru Doi Advantest 1
#5 Masakatsu Senda NTT 1
#5 Ryuichi Iwasaki Noritsu Koki Co. 1
#5 Yasuo Takano Kyorin Pharmaceutical Co. 1