Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–26 of 26 inventors

Rank Inventor Primary Company Patents
1 Yoshihisa Kato Panasonic 3
1 Masashi Kurokawa Mitsubishi Gas Chemical Company 3
3 Takashi Kabumoto Ishida Co. 2
3 Seisaku Iwasa Ishida Co. 2
3 Takeshi Noguchi Bridgestone 2
#6 Takuya Iwasa Ishida Co. 1
#6 Hiroshi Tasai Gs Yuasa International 1
#6 Masaya Fujii Ishida Co. 1
#6 Yuji Sakashita Omron 1
#6 Kazuteru Oda Ishida Co. 1
#6 Kazuo Koyama Nippon Steel 1
#6 Yasuki YODA Omron 1
#6 Yuzo Makinae Oiles 1
#6 Seiji Nemoto Gs Yuasa International 1
#6 Masaki Shinkawa Harada Industry Co. 1
#6 Akihiro Maenaka Sanyo Electric Co. 1
#6 Takehiko Hioka Omron 1
#6 Naoki Maki Hitachi 1
#6 Kohachi Tsuji Oiles 1
#6 Michiaki Hashitani Mitsubishi Electric 1
#6 Takeshi Kataya Murata Manufacturing Co. 1
#6 Shoko Tajiri Ishida Co. 1
#6 Shinji Takeichi Ishida Co. 1
#6 Keiji Tomimatsu Mitsubishi Electric 1
#6 Makoto Ichikawa Ishida Co. 1
#6 Motoki Takayama Ishida Co. 1