Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6057995 | Disc cartridge with aperture for access to disc provided with shutter arranged for minimizing overall size of cartridge | Keitaro Yamashita, Tomihiro Nakagawa, Keisuke Tejima | 2000-05-02 |