Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12134977 | V-type engine | Sayaka Yasoshina, Atsuki Sugihara, Takahiro Tsuchiyama | 2024-11-05 |
| 11181037 | Two-stroke engine | — | 2021-11-23 |
| 10502103 | Internal combustion engine with improved lubrication system | — | 2019-12-10 |
| 10221732 | Lubrication system for internal combustion engine | — | 2019-03-05 |
| 9938889 | Two-stroke engine | Toru Kawai | 2018-04-10 |
| 9938890 | Uniflow two-stroke engine | Yoshikazu Yamada | 2018-04-10 |
| 9926821 | Cylinder lubrication system for two-stroke engine | Yoshikazu Yamada | 2018-03-27 |
| 9885275 | Boiling cooling system | — | 2018-02-06 |
| 9695738 | Uniflow two-stroke engine | Toru Kawai | 2017-07-04 |
| 9546632 | Two-stroke engine with fuel injection | Yoshikazu Yamada | 2017-01-17 |
| 9429067 | Two-stroke engine with variable scavenging port | Yoshikazu Yamada | 2016-08-30 |
| 9359920 | Variable valve actuating mechanism for OHV engine | Yoshikazu Yamada | 2016-06-07 |
| 6779495 | Variable compression ratio engine | Yoshikazu Yamada, Sei Watanabe, Akihisa Shinoda | 2004-08-24 |