Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8011332 | Spark ignition type internal combustion engine | Daisaku Sawada, Yukihiro Nakasaka, Eiichi Kamiyama | 2011-09-06 |
| 7997241 | Spark ignition type internal combustion engine | Eiichi Kamiyama, Yukihiro Nakasaka | 2011-08-16 |
| 7917279 | Method of controlling a mechanical compression ratio, a closing timing of an intake valve and air stream | Eiichi Kamiyama | 2011-03-29 |
| 7882821 | Spark ignition type internal combustion engine | Daisaku Sawada, Eiichi Kamiyama, Yukihiro Nakasaka | 2011-02-08 |