Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880207 | Intake throttle valve return device of engine | Mamoru Sumida, Hirokazu Maehara | 1989-11-14 |
| 4870944 | Auxiliary air control valve for engine | Hirokazu Maehara | 1989-10-03 |
| 4866981 | Apparatus for detecting throttle valve opening of engine | Mamoru Sumida, Teruhiko Moriguchi | 1989-09-19 |
| 4859882 | Sense amplifier | Isao Abe, Takeshi Nakashiro | 1989-08-22 |
| 4840159 | Apparatus from controlling amount of intake air to engine | — | 1989-06-20 |
| 4815317 | Idling mode detecting switch for an internal-combustion engine | Hichiro Otani, Yutaka Okaue, Teruhiko Moriguchi | 1989-03-28 |
| 4806839 | Device for energizing a hermetic motor using inverter | Yuichiro Nagato, Hiroshi Hujii, Katsuhiko Saito | 1989-02-21 |