Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kamisu, JP ranks #4,018 worldwide for total patents filed all time, with 711 patents from 117 inventors. Leading employers of inventors based in Kamisu, JP include Shin-Etsu Chemical Co., Honda Motor Co., Man Design Co..

Showing 1–50 of 117 inventors

Rank Inventor Primary Company Patents
1 Tadashi Amano Shin-Etsu Chemical Co. 102
2 Hiromitsu Sasaki Honda Motor Co. 29
2 Shiro Takahashi Man Design Co. 29
#4 Tomoaki Tsuji Kuraray Co. 24
#4 Daisuke Koda Kuraray Co. 24
#6 Seiji Funakura Dic 21
#6 Keiji Shibata Kao 21
#6 Minoru Kase Kao 21
#6 Takahiro Nakashima Kuraray Co. 21
#10 Tatsuya Yoshikawa International Catalyst Technology 18
#10 Masahiro Usuki Shin-Etsu Chemical Co. 18
#12 Manabu Furudate Shin-Etsu Chemical Co. 16
#13 Hiroshi Kanbara Shin-Etsu Chemical Co. 15
#13 Minoru Shigemitsu Shin-Etsu Chemical Co. 15
#15 Makoto Toyohara Sanshin Industries 14
#16 Masahiro Tsumura Kashima Oil Co. 13
#17 Shinji Hiramatsu Kuraray Co. 11
#18 Yasushi SENDA Kuraray Co. 10
#18 Hideaki Ueoka Kao 10
#20 Yoshikazu Ueno Bridgestone 9
#20 Yoshitsugu Eguchi Shin-Etsu Chemical Co. 9
#22 Kazuyuki Yada Kuraray Co. 8
#22 Taiju Nakamura Eisai R&D Management Co. 8
#22 Yosuke UEHARA Kuraray Co. 8
#22 Hiromi Miyasita Kashima Oil Co. 8
#22 Hiroshi Fukudome Hitachi Automotive Systems 8
#27 Tomoaki Fujii Kashima Oil Co. 7
#27 Daisuke Kaku Asahi Glass Co. 7
#27 Kazuhiro Yoshizawa Eisai R&D Management Co. 7
#27 Masao Tashima Kashima Oil Co. 7
#31 Shigeto Aoki Aoki Technical Laboratory 6
#31 Yusuke Ayata Eisai R&D Management Co. 6
#31 Kazuhiro Kumakura Shin-Etsu Chemical Co. 6
#31 Atsushi Akao Eisai R&D Management Co. 6
#31 Shigenao Kuwahara Kuraray Co. 6
#36 Mayumi Tokuoka Dic 5
#36 Yuusuke SAITOU Kuraray Co. 5
#36 Shinpei Fukuhara Kao 5
#36 Shigeru Okano Kuraray Co. 5
#40 Yukiko Higuchi Dic 4
#40 Haruhiko Takeda Kashima Oil Co. 4
#40 Yusuke Miyashita Eisai R&D Management Co. 4
#40 Hiroshi Takamiya Mitsubishi Gas Chemical Company 4
#40 Keigo Hanaki Kao 4
#40 Chie Suzuki Sumitomo Electric Hardmetal 4
#40 Akinori Morikawa Meiji Seika Pharma Co. 4
#47 Kouji Maeba Mitsui Chemicals 3
#47 Ryoko Miyazaki Sharp Kabushiki Kaisha 3
#47 Satomi OHTA Kuraray Co. 3
#47 Toshiki Kawabata Shin-Etsu Chemical Co. 3