Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993392 | Apparatus for controlling heater for heating oxygen sensor | Hiroshi Tanaka, Koichi Hoshi, Mitsuhiro Suzuki, Ritsuo Masaki | 1991-02-19 |
| 4938196 | Control device for heater for oxygen sensor operative to correct target resistance with reference to standard power supply thereto | Kouichi Hoshi, Mitsuhiro Suzuki, Ritsuo Masaki, Akira Hashizume, Hidemi Ohnaka | 1990-07-03 |