Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kahoku, JP ranks #2,891 worldwide for total patents filed all time, with 1,057 patents from 200 inventors. Leading employers of inventors based in Kahoku, JP include Pfu Limited, Kabushiki Kaisha Toshiba, Toyota Industries.

Showing 1–50 of 200 inventors

Rank Inventor Primary Company Patents
1 Satoshi Kuroda Pfu Limited 80
2 Masaaki Sakai Pfu Limited 49
3 Takayuki Mori Kabushiki Kaisha Toshiba 34
#4 Shuichi Morikawa Pfu Limited 31
#4 Masanobu Hongo Pfu Limited 31
#4 Takayuki Umi Pfu Limited 31
#7 Kiichi Taniho Pfu Limited 26
#8 Tomohiro Murakami Toyota Industries 24
#8 Shigeharu Okano Pfu Limited 24
#10 Koji Nakamichi Fujitsu Limited 23
#11 Ryoichi Yasukawa Pfu Limited 22
#11 Seiichi Takeda Pfu Limited 22
#13 Yuji Noda Fujitsu Limited 21
#14 Akira Iwayama Pfu Limited 20
#14 Kiichiro Shimosaka Pfu Limited 20
#16 Hitoshi Matsuo Hitachi 19
#17 Isao Nakanishi Pfu Limited 13
#17 Nao Honda Nippon Kayaku 13
#17 Toshihiko Uno Horiba 13
#20 Akihiko Inamoto Pfu Limited 12
#20 Shoya Ishida Pfu Limited 12
#22 Hideyuki Okumura Pfu Limited 11
#22 Yasuhiko Kitagawa Pfu Limited 11
#22 Ikuo Toratani Goldwin Technical Center 11
#22 Yuta Arai Pfu Limited 11
#22 Nobuhisa Yamazaki Pfu Limited 11
#27 Shota Otsuka Tdk 10
#27 Motoshi Shibuya Pfu Limited 10
#29 Norifumi Tonami Pfu Limited 9
#29 Joichi Bita Fujitsu Limited 9
#29 Kazuki KITAMURA Capcom Co. 9
#29 Toshiaki Akita Kanazawa Institute Of Technology 9
#29 Shogo Yoshita Pfu Limited 9
#34 Kazuhiro Koide Pfu Limited 8
#34 Keisuke IDE Sharp Kabushiki Kaisha 8
#34 Yuka Saeki Pfu Limited 8
#34 Hirotoshi Kakuda Pfu Limited 8
#34 Masataka Kaji Mitsubishi Gas Chemical Company 8
#39 Tomoyuki Niwata Pfu Limited 7
#39 Shigeki Uesugi Pfu Limited 7
#39 Tadayoshi Shimanuki Pfu Limited 7
#42 Takashi Kidamura Fujitsu Limited 6
#42 Hidenori Kaseno Kowa Company 6
#42 Nobuyuki Shichino Fujitsu Limited 6
#42 Katsuhito Shimazaki Pfu Limited 6
#42 Hitoshi Yoshio Pfu Limited 6
#42 Ken Komatsu Asahi Glass Co. 6
#42 Yoshinobu Araya Pfu Limited 6
#49 Kazumi Miyasaka Pfu Limited 5
#49 Kazuhito Seki Pfu Limited 5