Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863584 | Apparatus for sensing air-fuel ratio | Takao Kojima, Yoshihide Kami | 1989-09-05 |
| 4806739 | Plate-like ceramic heater | Takao Kojima, Yoshiki Kawachi, Tetsusyo Yamada | 1989-02-21 |