Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831846 | Switching power source circuit with drive frequency variably controlled by switching element | — | 2004-12-14 |
| 6747883 | Switching power supply circuit | — | 2004-06-08 |
| 6731521 | Switching power supply circuit | — | 2004-05-04 |
| 6687137 | Resonant switching power supply circuit with voltage doubler output | — | 2004-02-03 |