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USPTO Patent Rankings Data through Dec 31, 2025
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Kiryu City, JP All Time

1,636 patents  ·  360 inventors

Ranked #1,984 of 112,640 cities Top 2%

Kiryu City, JP ranks #1,984 worldwide for total patents filed all time, with 1,636 patents from 360 inventors. Leading employers of inventors based in Kiryu City, JP include Sony, IBM, Noritsu Koki Co..

Showing 1–50 of 360 inventors

Rank Inventor Primary Company Patents
1 Shinichi Kuroda Sony 125
2 Osamu Ichikawa IBM 86
3 Masazumi Ishikawa Noritsu Koki Co. 39
3 Masaru Fujiwara Nippon Pillar Packing Co. 39
#5 Eiju Maehara Sanyo Electric Co. 33
#6 Yoshichika Kawashima Mitsuba 25
#7 Terumasa Hoshino Brother Industries 24
#7 Takafumi Ishii Nippon Oil 24
#9 Jun-ichi Ozaki — 22
#10 Toshihiro Okabe Hitachi 20
#11 Naotaka Sasaki Japan Servo Co. 19
#12 Mituhiro Onuki Cca 18
#13 Ken Hirota Sumitomo Electric Industries 17
#13 Yoshinori Fujisawa Rinnai 17
#13 Hiroyuki Otaki Dai Nippon Printing Co. 17
#16 Shigetaka Isogai Aisin Seiki Kabushiki Kaisha 16
#17 Tohru Kato Daido Metal Company 15
#17 Sugio Otani Unknown 15
#19 Akifumi Ozeki Yamada Manufacturing Co. 14
#19 Yoichi Shindo Fuji Electric Co. 14
#21 Akira Kamiyama Mitsuba Electric Manufacturing Co. 13
#21 Yoshifumi Kuwano Japan Servo Co. 13
#23 Isao Fujiu Kabushiki Kaisha Yamada Seisakusho 12
#23 Hiroyuki Takeno Topy Kogyo Kabushiki Kaisha 12
#23 Makoto Yajima Kabushiki Kaisha Toshiba 12
#23 Masatomo ISHIKAWA Nidec Servo 12
#27 Kazuo Shoji Sharp Kabushiki Kaisha 11
#27 Kenji Yasumoto Joven Denki Kabushiki Kaisha 11
#27 Shigeru Toda Honda Motor Co. 11
#27 Yukinari Takahashi Japan Servo Co. 11
#27 Yoshinori Shiroishi Yamada Manufacturing Co. 11
#27 Shunichi Kawamata Japan Servo Co. 11
#33 Shigeru Takada Mitsubishi Electric 10
#33 Hiroaki Taka Japan Servo Co. 10
#33 Tsunemi Aiba Hitachi Automotive Systems 10
#33 Yoshinori Akutsu Chisso 10
#33 Katsuki Hattori Sanyo Electric Co. 10
#38 Takatsugu Aihara Suzuki Warper 9
#38 Katsumi Sagisaka Ibiden Co. 9
#38 Taro Tanno Japan Servo Co. 9
#38 Tomohiko Ikemori Mitsuba 9
#38 Eiji Kuroda Nidec Servo 9
#38 Shinji Iwamoto Mitsubishi Electric 9
#38 Natsumi Tamura Mitsuba 9
#45 Yosuke Fukasawa Mitsuba 8
#45 Masahiro Fueki Mitsuba 8
#45 Kouki Isozaki Japan Servo Co. 8
#45 Shigeki Ota Mitsuba 8
#45 Mitsuhiro Kogure Mitsuba 8
#50 Kazuaki Nagashima Hitachi Automotive Systems 7

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