Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8418670 | Roller bearing, cam shaft support structure, internal combustion engine and incorporation method of roller bearing | Katsufumi Abe, Akihiko Katayama, Yugo Yoshimura, Shinji Oishi, Hiroki Tsuchiyama +4 more | 2013-04-16 |
| 8220423 | Roller bearing, camshaft support structure, and internal combustion engine | Katsufumi Abe, Hiroki Tsuchiyama, Shinji Oishi, Noriaki Fujii, Tomoya Fujimoto +2 more | 2012-07-17 |
| 8132550 | Roller bearing, camshaft support structure, and internal combustion engine | Shinji Oishi, Akihiko Katayama, Yugo Yoshimura, Katsufumi Abe, Hiroki Tsuchiyama +4 more | 2012-03-13 |
| 8011336 | Variable valve opening property internal combustion engine | Fumihisa Takemoto, Mitsuru Sugimoto, Takeo Kobayashi, Hirokazu Tochiki | 2011-09-06 |
| 7669564 | Variable valve lift internal combustion engine | Hirokazu Tochiki, Mitsuru Sugimoto, Fumihisa Takemoto | 2010-03-02 |