| 9212951 |
Object detection device |
Suguru Fukui |
2015-12-15 |
| 8552355 |
Smoke sensor including a current to voltage circuit having a low frequency correction means to produce a correction current |
Suguru Fukui |
2013-10-08 |
| 8487258 |
Pyroelectric infrared detection element and infrared sensor using the same |
Takahiro Sono, Suguru Fukui, Takayuki Nishikawa |
2013-07-16 |
| 7792553 |
Wireless sensor device |
Suguru Fukui, Yuji Takada |
2010-09-07 |
| 7312450 |
Infrared detecting device |
Suguru Fukui, Yuji Takada, Atsushi Hironaka |
2007-12-25 |
| 7129487 |
Infrared detecting circuit and an infrared detector |
Suguru Fukui, Yuji Takada |
2006-10-31 |
| 6313462 |
Infrared-rays detector |
Hiroshi Matsuda, Yuji Takada |
2001-11-06 |
| 5949072 |
Pyroelectric infrared ray sensor |
Yuji Takada, Toshio Fujimura, Shinji Sakamoto |
1999-09-07 |
| 5917187 |
Pyroelectric infrared ray sensor |
Yuji Takada, Toshio Fujimura, Shinji Sakamoto |
1999-06-29 |