Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kosai, JP ranks #2,504 worldwide for total patents filed in 2021, with 51 patents from 33 inventors. Leading employers of inventors based in Kosai, JP include Yazaki, Toyota, Canon.

Showing 1–33 of 33 inventors

Rank Inventor Primary Company Patents
1 Kimitoshi Makino Yazaki 5
2 Kenji Imamura Toyota 4
2 Koji Mikami Canon 4
2 Tomoyuki Hara Nissan Motor Co. 4
#5 Yoshiaki Takano Denso 2
#5 Takafumi Toda Yazaki 2
#5 Takahiro Iwaki Yazaki 2
#5 Isamu Sasaki Fuji Electrochemical Co. 2
#5 Takashi Nagaya Canon 2
#10 Yosuke Murota Primearth Ev Energy Co. 1
#10 Takaaki Yasumura Fdk 1
#10 Yasuyuki Nishiyama Univance 1
#10 Ryo Asaka Hamanakodenso Co. 1
#10 Tetsunori Inoguchi Hamanakodenso Co. 1
#10 Tadahiko Kato Univance 1
#10 Rintaro Horizumi Denso 1
#10 Yuuki Fujii Yazaki 1
#10 Shunichi Hiraoka Denso 1
#10 Yoshimichi Sahara Asmo Co. 1
#10 Kazuki Tamaki Tf-Metal Co. 1
#10 Takehiko Ohshita Denso 1
#10 Hidekazu Miyai Fuji Kiko Co. 1
#10 Chiaki KURITA Hamanakodenso Co. 1
#10 Masayuki Kuwano Asmo Co. 1
#10 Kousuke Shirai Hamanakodenso Co. 1
#10 Tsukasa Sekino Yazaki 1
#10 Younan Ri Hamanakodenso Co. 1
#10 Fumisato Mase Fuji Kiko Co. 1
#10 Syunya Kouketsu Jtekt 1
#10 Atsuyoshi Yamaguchi Yazaki 1
#10 Yoshihiko Suga Denso 1
#10 Yoshifumi Teramoto Hamanakodenso Co. 1
#10 Tomoyuki Fujii Ngk Insulators 1