Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5796913 | Video disk and video reproduction device which automatically extracts reproduction control data from a disk and subsequently modifies a control program which was stored in a ROM | Hiroyuki Takada, Koichi Hayashi, Yasutada Aoyama, Hiroshi Nishikawa | 1998-08-18 |
| 5611693 | Image karaoke device | Hiroshi Nishikawa, Koichi Hayashi, Hiroyuki Takada, Yasutada Aoyama, Yasuhiro Funahashi +1 more | 1997-03-18 |
| 5485218 | Image processor for producing even field video data based on odd field video data | Yasutada Aoyama, Hiroyuki Takada, Koichi Hayashi, Hiroshi Nishikawa | 1996-01-16 |
| 5243123 | Music reproducing device capable of reproducing instrumental sound and vocal sound | — | 1993-09-07 |