Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D395435 | Internal combustion engine | Yukiteru Yoshida, Yoshio Kobayashi, Naoki Shibata | 1998-06-23 |
| 5109949 | Muffler of industrial engine | Toru Sato, Yoshio Kobayashi | 1992-05-05 |