Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9743470 | Lighting control circuit, illuminating lamp using the lighting control circuit, and lighting device using the illuminating lamp | Hisashi Tomiyama, Masaharu Urano, Shigemi Hagiwara | 2017-08-22 |
| 9357599 | Lighting control circuit, illuminating lamp using the lighting control circuit, and lighting device using the illuminating lamp | Hisashi Tomiyama, Masaharu Urano, Shigemi Hagiwara | 2016-05-31 |