Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602374 | Fire receiver in fire alarm system | Kouichi Hishino | 1997-02-11 |
| 5493271 | Fire alarm system | Takashi Kobayashi | 1996-02-20 |
| 5461370 | Fire alarm system | Akira Igarashi, Takashi Kobayashi | 1995-10-24 |
| 5151683 | Power supply control device in fire alarm system | Kaoru Takahashi, Ryuji Shutoku | 1992-09-29 |
| 5086293 | Line interruption supervisory device for a fire alarm system | Kaoru Takahashi, Ryuji Shutoku | 1992-02-04 |
| 5083107 | Fire alarm system | Kaoru Takahashi, Ryuji Shutoku | 1992-01-21 |