Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8184958 | Audio-video player and event determination device | Hideyuki Sawada, Hiroyuki Fukuma | 2012-05-22 |
| 8155349 | Muting control device, muting control method, and muting control program | Tadashi Yamamoto | 2012-04-10 |
| 7818482 | Amplifier connected to and identifying plurality of content reproducing devices with respective audio speakers | Hiroyuki Fukuma, Kenji Handa | 2010-10-19 |
| 7548494 | Audio system, and disc reproduction device and audio output control device for use therein | Hiroyuki Fukuma | 2009-06-16 |
| 7466363 | AV system including amplifier and content reproducing device with connection-based on screen display | Hiroyuki Fukuma | 2008-12-16 |