Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977889 | Direct-current power supply device, power supply device for driving LED and semiconductor integrated circuit for driving power supply | Keizo Kumagai | 2011-07-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977889 | Direct-current power supply device, power supply device for driving LED and semiconductor integrated circuit for driving power supply | Keizo Kumagai | 2011-07-12 |