Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11692502 | Engine ignition method and engine ignition device | Masayuki Sugiyama, Naoya Takamura | 2023-07-04 |
| 11149678 | Stroke determination device for 4-stroke engine | Masayuki Sugiyama, Yushi Suzuki, Naoya Takamura | 2021-10-19 |
| 6362603 | Battery charging apparatus | Hidetoshi Suzuki, Hiroyuki Horibe, Masahiko Yamaguchi | 2002-03-26 |