Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885929 | Ozone gas sensor and ozone gas detecting device having ozone gas sensor | Riichiro Kasahara | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885929 | Ozone gas sensor and ozone gas detecting device having ozone gas sensor | Riichiro Kasahara | 1989-12-12 |