Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827880 | Pulsation controller in the intake/exhaust systems of internal combustion engines | Masaki Ban, Hiroyuki Morita | 1989-05-09 |
| 4819590 | Control valve driving device in an internal combustion engine | Masaki Ban, Hiroyuki Morita | 1989-04-11 |