Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9510411 | Illumination device | Miyo Hayashi | 2016-11-29 |
| 9089020 | Dimming signal generation device and illumination control system using same | Koji Watanabe | 2015-07-21 |
| 8957591 | Illumination system | Yoshinobu Murakami, Koji Nakagawara, Masahito Ohnishi, Masahiro Naruo, Shigeru Ido +1 more | 2015-02-17 |
| 8872444 | Lighting device for solid-state light source and illumination apparatus including same | Koji Watanabe, Kazuhiro Nisimoto | 2014-10-28 |
| 8723436 | LED lighting device and illumination apparatus including same | Koji Watanabe, Kenji Matsuda | 2014-05-13 |
| 8716949 | Lighting device for solid-state light source and illumination apparatus using same | Koji Watanabe | 2014-05-06 |
| 8669721 | Solid state light source based lighting device and lighting system | Koji Watanabe, Nobuo Ukita, Kazuhiro Nishimoto | 2014-03-11 |
| 8664883 | LED lighting device with chopper circuit and dimming control method | Akinori Hiramatu | 2014-03-04 |
| 8502463 | LED driver circuit with open load detection and associated control method | Kazuhiro Kumada, Yoshifumi Kuroki | 2013-08-06 |
| 8482222 | Lighting device and light fixture using lighting device | Akinori Hiramatu, Yoshifumi Kuroki | 2013-07-09 |
| 8390213 | LED power-source circuit and illumination fixture using the same | Kazuhiro Kumada, Yoshifumi Kuroki | 2013-03-05 |
| 6696798 | Ballast circuit for operating a discharge lamp | Kazuhiro Nishimoto, Katsunobu Hamamoto | 2004-02-24 |
| 5942859 | Discharge lamp lighting device | Akio Okude, Kouji Noro, Jun Kumagai | 1999-08-24 |