Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kosai, JP ranks #1,842 worldwide for total patents filed in 2017, with 71 patents from 43 inventors. Leading employers of inventors based in Kosai, JP include Canon, Denso, Yazaki.

Showing 1–43 of 43 inventors

Rank Inventor Primary Company Patents
1 Koji Mikami Canon 9
2 Yoshiaki Takano Denso 5
3 Tsukasa Sekino Yazaki 4
#4 Hidehiko Kuboshima Yazaki 3
#4 Chie Morita Asmo Co. 3
#4 Eiichi Tohyama Yazaki 3
#4 Tomoyasu Terada Yazaki 3
#8 Kenji Imamura Toyota 2
#8 Hidehiro Ichikawa Yazaki 2
#8 Eiichi Toyama Yazaki 2
#8 Yoko Tateishi Asmo Co. 2
#8 Takafumi Toda Yazaki 2
#13 Yoshiyasu Inoue Denso 1
#13 Takafumi Negi Denso 1
#13 Yoshinobu Nagao Asmo Co. 1
#13 Yoshimichi Sahara Asmo Co. 1
#13 Hideya TOCHIHARA Hamanakodenso Co. 1
#13 Yoshimichi Hashiba 1
#13 Yuuki Fujii Yazaki 1
#13 Tetsunori Inoguchi Hamanakodenso Co. 1
#13 Takeyuki Hamaguchi Yazaki 1
#13 Kunihiko Satou Yazaki 1
#13 Shigemi Hashizawa Yazaki 1
#13 Tadashi Ohachi The Doshisha 1
#13 Yoshikazu Kinashi Ichinomiya Denki Co. 1
#13 Takashi Nagaya Canon 1
#13 Yoshitsugu Nakagawa Asmo Co. 1
#13 Yukie Inoue Ricoh Company 1
#13 Tomoyuki Fujii Ngk Insulators 1
#13 Akihiro Miwa Yamaha 1
#13 Akihiro Utsumi Asmo Co. 1
#13 Yoshiaki Ishitani Fdk Energy Co. 1
#13 Tomoki Kubo Kaneka 1
#13 Shinichiro Ito Toyota 1
#13 Yasuyoshi Matsui Musashi Seimitsu Industry Co. 1
#13 Takashi Natsume Asmo Co. 1
#13 Kimitoshi Makino Yazaki 1
#13 Atsuyoshi Yamaguchi Yazaki 1
#13 Yoshiki Okumura Fujitsu Limited 1
#13 Yusuke Tateishi Shimadzu 1
#13 Tetsuro Saimoto Yazaki 1
#13 Akitomo Iijima Aisin Seiki Kabushiki Kaisha 1
#13 Naoyuki Tsukamoto Otowa Electric Co. 1