Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5399864 | Ionization type smoke detector | Yoshinori Igarashi, Toru Sasaki, Ikuhisa Hatakenaka, Kentaro Higashi, Nobuo Hatori +2 more | 1995-03-21 |
| D339998 | Smoke detector | Yoshinori Igarashi, Yasuo Ariga | 1993-10-05 |
| D339756 | Smoke detector | Yoshinori Igarashi, Toru Sasaki, Yasuo Ariga, Kentaro Higashi | 1993-09-28 |