Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8068180 | AV processor and program | Kazuo Ishikawa, Toru Ebata | 2011-11-29 |
| 6864879 | Rotational operation mechanism and music playback apparatus using the mechanism | Kenji Muratani | 2005-03-08 |
| 5107474 | Multi-magazine disc player | Masaya Ishibashi | 1992-04-21 |
| 5084859 | Multi-magazine disc player | Masaya Ishibashi, Takeo Tobe, Komei Hashimoto | 1992-01-28 |
| 5034935 | Multi-magazine disc player | Masaya Ishibashi | 1991-07-23 |