Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Chiryu, JP ranks #4,652 worldwide for total patents filed all time, with 587 patents from 30 inventors. Leading employers of inventors based in Chiryu, JP include Aisin Seiki Kabushiki Kaisha, Toyota, Denso.

Showing 1–30 of 30 inventors

Rank Inventor Primary Company Patents
1 Michiharu Nishii Aisin Seiki Kabushiki Kaisha 76
2 Toshiyuki Kondo Toyota 73
3 Yoshimitsu Inoue Denso 65
#4 Shiro Sato Nippon Sheet Glass Company, Limited 37
#5 Masao Kawai Toyota 35
#5 Naoji Sakakibara Aisin Seiki Kabushiki Kaisha 35
#7 Shiro Yamada Brother Kogyo 29
#8 Atsushi Yokochi Brother Kogyo 22
#9 Yukio Isomura Aisin Seiki Kabushiki Kaisha 19
#10 Hajime Inada Brother Kogyo 18
#10 Hiromu Kuromitsu Aisin Seiki Kabushiki Kaisha 18
#12 Toshihiro Sugiura Masprodenkoh Kabushikikaisha 17
#13 Naohito Kato Nippondenso Co. 16
#14 Tsuneo Ando Toyota 15
#15 Toshiyuki Furuyama Brother Kogyo 14
#16 Chiaki Saito Kyowa Hakko Kogyo Co. 13
#17 Shigeru Kamiya Nippon Soken 12
#18 Sigeru Kamiya Nippon Soken 11
#19 Shun Fujishiro Toyota 9
#20 Eiichi Nagasaku Nippondenso Co. 8
#20 Kouji Hirao Aisin Seiki Kabushiki Kaisha 8
#22 Yo Tsurumi Sumitomo Heavy Industries 6
#23 Azusa Tsukigase Toyota Central R&D Labs 5
#23 Mayuko Umemura Brother Kogyo 5
#23 Takahiro Inokuchi Aisin Seiki Kabushiki Kaisha 5
#26 Yasuyuki Ohara Tsuchiya Tsco Co. 4
#26 Mari Okazaki Toyota 4
#26 Yoshihiro Menjo Toyoda Gosei Co. 4
#29 Mikihiro ANDO Denso 2
#29 Ikuo Yamauchi Toyota 2