Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11692502 | Engine ignition method and engine ignition device | Takuma Ayuzawa, Masayuki Sugiyama | 2023-07-04 |
| 11149678 | Stroke determination device for 4-stroke engine | Takuma Ayuzawa, Masayuki Sugiyama, Yushi Suzuki | 2021-10-19 |