Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8391502 | Sound reproducing apparatus and audiovisual system | Masahiko Mizoguchi, Akifumi Sakamoto, Akihiro Mitani, Yoshifumi Inoue, Koichi Otsuka | 2013-03-05 |
| 8233634 | Video/sound output device and external speaker control device | Sako Asayama, Hiroshi Kase, Mitsuteru Kataoka, Akihiro Mitani, Masahiko Mizoguchi +1 more | 2012-07-31 |
| 8175298 | Audio output system control method and audio output system | Akihiro Mitani, Masahiko Mizoguchi, Akifumi Sakamoto, Koichi Otsuka, Teruyuki Tomonari +3 more | 2012-05-08 |
| 8131128 | Audiovisual system and control method thereof | Koichi Otsuka, Akihiro Mitani, Akifumi Sakamoto, Masahiko Mizoguchi, Akihiro Fujita +1 more | 2012-03-06 |
| 8094830 | Video/sound output device and external speaker control device | Sako Asayama, Hiroshi Kase, Mitsuteru Kataoka, Akihiro Mitani, Masahiko Mizoguchi +1 more | 2012-01-10 |