Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5814285 | Poisoning-preventive layer-possessing support, poisoning-resistant catalyst, exhaust gas converter device, and poisoning-preventive gasoline composition | Takao Kojima, Masaru Yamano | 1998-09-29 |
| 5811064 | Poisoning resistant catalyst for exhaust gas converters | Takao Kojima, Masaru Yamano | 1998-09-22 |
| 5316738 | Exhaust gas converter device | Takao Kojima, Masaru Yamano | 1994-05-31 |
| 5242573 | Method of making air/fuel ratio sensor | Nobuhiro Hayakawa, Yutaka Adachi, Haruhisa Shiomi | 1993-09-07 |
| 5194135 | Air/fuel ratio sensor | Nobuhiro Hayakawa, Yutaka Adachi, Haruhisa Shiomi | 1993-03-16 |
| 5139829 | Method for producing oxygen detection element | Haruhisa Shiomi, Yoshitake Kawachi | 1992-08-18 |
| 4980042 | Oxygen sensor and method of making it | Haruhisa Shiomi, Toshihiko Aoyama, Yoshitake Kawachi | 1990-12-25 |
| 4825683 | Apparatus for evaluating an oxygen sensor | Akio Takami, Mineji Nasu, Toshifumi Sekiya, Toshitaka Matsuura, Akio Mizutani +1 more | 1989-05-02 |