Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859307 | Electrochemical gas sensor, and method for manufacturing the same | Kazuyoshi Shibata | 1989-08-22 |
| 4814059 | Electrochemical device having a heater and leak protection electrode | Kazuyoshi Shibata | 1989-03-21 |
| 4795544 | Electrochemical gas sensor | Kazuyoshi Shibata | 1989-01-03 |