Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10145332 | Method for adjusting volume of combustion chamber of engine | Hiroki Nakao | 2018-12-04 |
| 9863763 | Method for adjusting volume of combustion chamber of engine | Hiroki Nakao | 2018-01-09 |