Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878472 | Air-fuel ratio feedback control method for internal combustion engines | — | 1989-11-07 |
| 4803898 | Apparatus for detecting a neutral state of a transmission gear of a vehicle engine system | Takeshi Fukuzawa, Hiromitsu Sato, Masahiko Asakura, Atsushi Totsune | 1989-02-14 |
| 4795015 | Clutch operation control system for fluid torque converter of vehicular transmission | Hiroshi Ikura | 1989-01-03 |