Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8766540 | Lighting device, headlamp lighting device, and headlamp unit and vehicle having same | Takashi Kambara | 2014-07-01 |
| 8253351 | Electronic ballast with multimode lamp power control | Masafumi Yamamoto, Hiroyuki Asano | 2012-08-28 |
| 8203282 | Electronic ballast with lamp end of life detection and protection circuits | Masafumi Yamamoto, Hiroyuki Asano | 2012-06-19 |
| 8193727 | Lamp end of life protection circuit and method for an electronic dimming ballast | Hiroyuki Asano, Masafumi Yamamoto | 2012-06-05 |
| 7973493 | Discharge lamp lighting device, and illuminating device | Naoki Onishi, Keisuke Ueda, Kouichi Ikegami, Kazuhiko Tachibana, Takuya Sakai | 2011-07-05 |