Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8044719 | Class D amplifier circuit | Takashi Norimatsu | 2011-10-25 |
| 8018824 | Optical disc recording apparatus | Teruhiko Tsurumi | 2011-09-13 |
| 7933418 | Sound reproducing apparatus and method of identifying positions of speakers | — | 2011-04-26 |
| 7920082 | D/A converter circuit and digital input class-D amplifier | Hirotaka Kawai, Nobuaki Tsuji, Yohei Otani | 2011-04-05 |