Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315158 | Photoelectric smoke sensing chamber and smoke sensor box | Takao Kakigi | 1982-02-09 |
| 4249082 | Photoelectric smoke sensor box | Takao Kakigi | 1981-02-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315158 | Photoelectric smoke sensing chamber and smoke sensor box | Takao Kakigi | 1982-02-09 |
| 4249082 | Photoelectric smoke sensor box | Takao Kakigi | 1981-02-03 |