Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653391 | Fire extinguishing head | Seiji Chiba | 1997-08-05 |
| 4853544 | Heat-resistant case for an ionization-type smoke detector and method of making the same | — | 1989-08-01 |
| 4740703 | Ionization-type smoke detector | — | 1988-04-26 |