Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9345100 | LED power supply | Keisuke Ueda | 2016-05-17 |
| 9131570 | Lighting device and luminaire | Hisanaga Onishi, Katsuyoshi Nakada | 2015-09-08 |
| 9055638 | Lighting device and lighting fixture | Katsuyoshi Nakada, Hisanaga Onishi | 2015-06-09 |
| 8669721 | Solid state light source based lighting device and lighting system | Koji Watanabe, Hiromitsu Mizukawa, Kazuhiro Nishimoto | 2014-03-11 |
| 8638039 | Electronic ballast and method for providing a DC voltage component during lamp startup | Jun Kumagai, Naoki Komatu, Kazuhiko Harada | 2014-01-28 |
| 7759878 | Lighting device for a high-pressure discharge lamp and lighting equipment employing same | Akira Yufuku, Takeshi Goriki, Noriyuki Fukumori | 2010-07-20 |
| 5485061 | Discharge lamp lighting device capable of preventing a flicker due to arc movement | Kenji Nakamura, Takashi Ohsawa, Yasumasa Hanazaki | 1996-01-16 |
| 5481163 | Discharge lamp current controlling circuit | Kenji Nakamura | 1996-01-02 |
| 5465029 | Power control apparatus for discharging lamp and method thereof | Yasumasa Hanazaki | 1995-11-07 |
| 5434474 | Lighting apparatus for discharge lamp | Kenji Nakamura, Takashi Osawa, Yasumasa Hanazaki | 1995-07-18 |