Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11933022 | Tractor | Yuki Sugo, Makoto Hirai, Taiga Higuchi, Tomohiro Sato, Hiroyuki Azuma | 2024-03-19 |
| 11881062 | Control device of working vehicle | Yuki Sugo, Makoto Hirai, Tomohiro Sato, Taiga Higuchi, Hiroyuki Azuma | 2024-01-23 |
| 9587523 | Oil control valve | Yuu Yokoyama | 2017-03-07 |
| 9464542 | Variable valve timing apparatus for internal combustion engine | Yuu Yokoyama, Yoshiro KAMO | 2016-10-11 |
| 9175583 | Control device for internal combustion engine | Toshio Imamura, Yoshiaki Miyazato, Yuu Yokoyama, Yoshiki Endo | 2015-11-03 |
| 9010289 | Control device for hydraulic variable valve timing mechanism | Haruhito Fujimura, Yuu Yokoyama | 2015-04-21 |
| 8925503 | Variable valve device for internal combustion engine | Yoshiaki Miyazato, Toshio Imamura, Yuu Yokoyama | 2015-01-06 |
| 8910617 | Control device for internal combustion engine | Yuu Yokoyama | 2014-12-16 |
| 8683968 | Variable valve assembly for internal combustion engine | Yuu Yokoyama | 2014-04-01 |
| 8656876 | Valve timing control apparatus | Toshiki Fujiyoshi, Yuu Yokoyama | 2014-02-25 |
| 8578900 | Valve timing controller for internal combustion engine | Shinichiro Kikuoka | 2013-11-12 |
| 8522737 | Variable valve timing mechanism with intermediate locking mechanism and fabrication method thereof | Yuu Yokoyama | 2013-09-03 |