Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6519222 | Automatic disc changing device | Akio Hayashi, Koutaro Onso, Hitoshi Nakamura | 2003-02-11 |
| 6304525 | Disc inverting mechanism and disc automatic changer with the mechanism | Akio Hayashi, Koutaro Onso, Hitoshi Nakamura, Noritada Kuwayama | 2001-10-16 |