Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302837 | Photoelectric smoke detector with expanded visual field | Hiroshi Sawa, Naoki Kosugi | 1994-04-12 |
| 5162708 | Method and device for driving a supersonic motor | Masafumi Naito, Yoshihiro Adachi | 1992-11-10 |
| 5055750 | Air damper operating system of vehicle air conditioners | Takashi Fukui | 1991-10-08 |
| 4897634 | Scattered-light smoke detector with a shielding structure of detector circuits | Hiroshi Sawa, Atsushi Miyabe, Hiroshi Honma | 1990-01-30 |
| 4851819 | Photoelectric smoke detector with permanently fixed insect net | Hiroshi Sawa | 1989-07-25 |