Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4761557 | Ionization-type smoke detector | Toru Sasaki | 1988-08-02 |
| 4724430 | Fire detector | — | 1988-02-09 |
| 4546166 | Sealant composition | Masahiro Niinomi, Yukihiro Okubo, Masashi Yoshinari | 1985-10-08 |