Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131254 | Marine engine | Yutaka Masuda, Yoshiyuki Umemoto, Toshihiko Shimizu | 2021-09-28 |
| 11053865 | Compression ratio control device and engine | Yutaka Masuda, Yoshiyuki Umemoto, Jun Teramoto, Kazuki Yotsui, Keitoku Iguchi | 2021-07-06 |