Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9320110 | Lighting device and illumination apparatus including same | Masafumi Yamamoto, Katunobu Hamamoto, Hiroyuki Asano, Yuji Yoshimoto | 2016-04-19 |
| 9167665 | Lighting device, lighting apparatus using the same, and lighting system | Masafumi Yamamoto, Katsunobu Hamamoto | 2015-10-20 |
| 9089034 | Lighting device and luminaire including the same | Masafumi Yamamoto, Satoru Nagata, Masato Himeda, Koki Matsui | 2015-07-21 |
| 8853949 | LED driver with end-of-life detection circuitry | Katsunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda | 2014-10-07 |
| 8836239 | LED lighting device and illumination apparatus including same | Katunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda | 2014-09-16 |
| 8786201 | LED lighting device and illumination apparatus including same | Katunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda | 2014-07-22 |
| 8669718 | Lighting device and illumination apparatus using same | Masafumi Yamamoto, Katunobu Hamamoto, Hiroyuki Asano, Hiroyuki Nakagawa, Yuji Yoshimoto | 2014-03-11 |
| 8564206 | LED lighting device and illumination apparatus including same | Katunobu Hamamoto, Masafumi Yamamoto, Keisuke Ueda | 2013-10-22 |