Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831508 | Switching power amplifier, and switching control method for a switching power amplifier | — | 2004-12-14 |
| 6812785 | Digital power amplifier and digital/analog converter | Toshihiko Masuda | 2004-11-02 |