Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7893673 | Step-up switching power supply device, and electronic device provided therewith | — | 2011-02-22 |
| 7868602 | Power supply device and electronic appliance therewith | Toru Takahashi | 2011-01-11 |