Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693529 | Fire alarm system | Takashi Suzuki, Takao Fujisawa, Yuki Yoshikawa | 2004-02-17 |
| 6577233 | Fire alarm system and terminal equipment in the same | Takashi Suzuki, Takao Fujisawa, Yuki Yoshikawa | 2003-06-10 |