Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357849 | Key switch information assignor | Sadaaki Ezawa | 1982-11-09 |
| 4328477 | Gas detecting element and process for producing the same | Akio Takami, Kazutoshi Tanaka | 1982-05-04 |
| 4322968 | Temperature compensated plug-in type oxygen detector for exhaust gas | Akio Takami, Toshitaka Matsuura | 1982-04-06 |