Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670948 | Fire detector | Eiji Hirooka, Makoto Yasukawa | 1997-09-23 |
| 5598147 | Smoke detecting apparatus for fire alarm | Hideo Ito, Ryousaku Kobayashi | 1997-01-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670948 | Fire detector | Eiji Hirooka, Makoto Yasukawa | 1997-09-23 |
| 5598147 | Smoke detecting apparatus for fire alarm | Hideo Ito, Ryousaku Kobayashi | 1997-01-28 |