Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737977 | Fire detector unit | Takayuki Nishikawa, Shoichi Oka, Koji Sakamoto, Takeshi Wada, Yasuyuki Kawano +2 more | 2004-05-18 |
| 6611611 | Particle sensor | Shoichi Oka, Masanori Hayashi, Takayuki Nishikawa, Koji Sakamoto, Takeshi Wada | 2003-08-26 |
| 6552664 | Method of fabricating a fire detector | Takayuki Nishikawa, Takeshi Wada, Yasuyuki Kawano, Shoichi Oka, Koji Sakamoto | 2003-04-22 |
| 6051836 | Low-profile dome-shaped multi-lens system | Katsuhiro Uchisawa, Masao Yamaguchi | 2000-04-18 |
| 4912748 | Infrared intrusion detector with a plurality of infrared ray detecting elements | Takashi Horii, Hiroshi Matsuda, Hidekazu Himezawa, Tsunehiko Araki | 1990-03-27 |
| 4849737 | Person-number detecting system | Tsunehiko Araki, Yuuki Yorifuji, Takashi Horii, Hiroshi Matsuda, Hidekazu Himezawa | 1989-07-18 |