Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838222 | Combustion chamber for internal combustion engines | Yoshihiko Sato, Noriyuki Sakurai | 1989-06-13 |
| 4799465 | Combustion chamber for internal combustion engines | Yoshihiko Sato | 1989-01-24 |