Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ashikawa, JP ranks #6,858 worldwide for total patents filed all time, with 349 patents from 73 inventors. Leading employers of inventors based in Ashikawa, JP include Fanuc, Smc, Ngk Insulators.

Showing 1–50 of 73 inventors

Rank Inventor Primary Company Patents
1 Kunio Tanaka Fanuc 104
2 Masaru Saitoh Smc 24
3 Tomoharu Kondo Ngk Insulators 19
#4 Akitoshi Yoshida National University Corporation Asahikawa Medical University 17
#5 Takeo Tanaka Hitachi 14
#5 Tomoyuki Iwata Smc 14
#7 Makoto Ooura Shin-Etsu Chemical Co. 12
#8 Takashi Shimaguchi Hitachi 10
#9 Kazuyoshi Hatano Hitachi Construction Machinery Co. 9
#10 Yoji Kameo Kao 8
#11 Toshinori Ozaki Hitachi 7
#11 Yutaka Kohgo National University Corporation Asahikawa Medical University 7
#13 Fumito Nakamura Hitachi 5
#13 Yuichi Irinatsu Kao 5
#15 Tomiho Yamada Kabushiki Kaisha Toshiba 4
#15 Mikihiro Fujiya National University Corporation Asahikawa Medical University 4
#15 Takuo Kataho Tdk 4
#15 Takeshi Hasui Kurosawa Construction Co. 4
#19 Hideji Yamamoto Sakai Chemical Industry Co. 3
#19 Takanobu Taniyama Sumitomo Electric Industries 3
#19 Masaaki Tsuchiyama Mitsubishi Chemical 3
#19 Hisami Ikeda Sloan Kettering Institute For Cancer Research 3
#19 Motohiro Satoh Hitachi 3
#24 Yukihiro Kato Kyorin Pharmaceutical Co. 2
#24 Yoshihide Abe Toshiba Hokuto Electronics 2
#24 Mutsuo Ishikawa Fujifilm 2
#24 Megumi Yamauchi Toshiba Hokuto Electronics 2
#24 Nobuhiro Ueno National University Corporation Asahikawa Medical University 2
#24 Hidemichi Tohori Toa Medical Electronics Co. 2
#24 Kazuharu Yatsunami Nippon Kokan Co. 2
#24 Hiromasa Tanino Asahi Kasei Pharma 2
#24 Masakatsu Doi Toshiba Hokuto Electronics 2
#24 Seiichi Noro Toshiba Hokuto Electronics 2
#24 Tomotsugu Jingi Toshiba Hokuto Electronics 2
#24 Masahisa Sofue Hitachi 2
#24 Yuuki Komori Toshiba Hokuto Electronics 2
#37 Katsuo Umehara 1
#37 Shokichi Matsui 1
#37 Masahiko Uemura Fujitsu Limited 1
#37 Naoto Matsuno National University Corporation Asahikawa Medical University 1
#37 Yukihiro Oryu Asahi Rubber 1
#37 Tamio Aburano National University Corporation Asahikawa Medical University 1
#37 Atsutaka Okizaki National University Corporation Asahikawa Medical University 1
#37 Toshifumi Shimada 1
#37 Kentaro Moriichi National University Corporation Asahikawa Medical University 1
#37 Yuki Kaketa Meiko Electronics Co. 1
#37 Hiroko Hashizume Kowa Company 1
#37 Akiyoshi Hara Kowa Company 1
#37 Yoshihide Azabu Kao 1
#37 Satoshi Ishiko Nidek Co. 1