Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326597 | Method of producing oxygen sensor for air-fuel ratio control having a protective layer including oxygen storage material | Toshiki Sawada, Kazuo Taguchi, Takao Kojima, Hiroyuki Ishiguro, Masahiko Yamada | 1994-07-05 |
| 5316738 | Exhaust gas converter device | Takao Kojima, Ken Minoha | 1994-05-31 |