KH

Koji Hirooka

YC Yamada Manufacturing Co.: 4 patents #23 of 164Top 15%
KS Kabushiki Kaisha Yamada Seisakusho: 1 patents #10 of 30Top 35%
📍 Kiryu City, JP: #65 of 360 inventorsTop 20%
Overall (All Time): #930,915 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12017698 Steering device Peng Jiushuang 2024-06-25
10870443 Shock absorbing steering device Ryosuke Takahashi 2020-12-22
10711844 Assembly of shaft and yoke Takuya Aiba, Toru Sekiguchi 2020-07-14
10518798 Steering device Toru Ito, Mami Tokizaki, Kazuya Akaishi, Yasushi Yokokura, Ryosuke Takahashi 2019-12-31
6378903 Shock absorbing apparatus for steering column Mitsuo Yabutsuka, Isao Fujiu, Norihiko Yokota 2002-04-30