Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chita, JP ranks #1,703 worldwide for total patents filed all time, with 1,960 patents from 373 inventors. Leading employers of inventors based in Chita, JP include Hitachi, Brother Industries, Brother Kogyo.

Showing 1–50 of 373 inventors

Rank Inventor Primary Company Patents
1 Hiroshi Fukui Hitachi 141
2 Nobuyuki Iwai Brother Industries 74
3 Toru Kakiuchi Brother Kogyo 58
#4 Koji Ishizuka Denso 54
#5 Makoto Ikegami Denso 50
#6 Takashi Hirabayashi Denso 38
#7 Keiji Kura Brother Kogyo 35
#8 Yuichi Mizutani Aisin Seiki Kabushiki Kaisha 32
#9 Akira Shinoda Brother Kogyo 29
#9 Hirofumi Kako Denso 29
#11 Takaaki Maekawa Japan Science And Technology 28
#11 Yuuichi Aoki Denso 28
#13 Hiroyuki Osakabe Denso 25
#13 Taku Itoh Denso 25
#15 Takao Ushijima Denso Wave Incorporated 24
#15 Tadahiro Kurasawa Denso 24
#17 Makoto Suzumura Aisin Seiki Kabushiki Kaisha 23
#18 Noriaki Fujita Sony 22
#18 Kouichi Oda Toyoda Boshoku 22
#20 Atsushi Tano Denso Wave Incorporated 20
#20 Kazuyoshi Mori Aisin Seiki Kabushiki Kaisha 20
#20 Keita Saitou Denso 20
#23 Tadashi Hazama Denso 19
#23 Akiyoshi Mori Fuji Oozx 19
#23 Shin Nakayama Hoya 19
#26 Takanobu Gotoh Toyota 18
#26 Ryota Nakanishi Aisin Seiki Kabushiki Kaisha 18
#28 Yasuyuki Yoshida Denso 17
#28 Koji Konosu Denso Wave Incorporated 17
#30 Takahiro MIYAJIMA Denso Wave Incorporated 15
#30 Norikazu Kobayashi Aisin Seiki Kabushiki Kaisha 15
#30 Mamoru Tashiro Semiconductor Energy Laboratory 15
#33 Kazuo Ueno Hamamatsu Photonics K.K. 14
#33 Yuji Asai Ngk Insulators 14
#33 Shoji Kaneko Elpida Memory 14
#33 Tomohiro Hamajima Nec 14
#37 Noriyoshi Shibata Aisin Seiki Kabushiki Kaisha 13
#37 Kiyotaka Nakai Aisin Seiki Kabushiki Kaisha 13
#39 Yuichi Takeo Advics Co. 12
#39 Yuuichi Takeuchi Denso 12
#39 Shige Kadotani Denso 12
#42 Tatsuya Shintai Denso 11
#42 Yoshimasa Komatsu Konica 11
#42 Hiroshi Asanuma Aisan Kogyo Kabushiki Kaisha 11
#42 Toshihide Ando Denso 11
#46 Toshiaki Nagata Aisin Seiki Kabushiki Kaisha 10
#46 Atsuhiro Mase Aisin Seiki Kabushiki Kaisha 10
#46 Tokuhisa Takeuchi Denso 10
#46 Masahiro Murasato Ngk Insulators 10
#46 Kenji Shimosaka Fuji 10