Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418113 | Disk cartridge | Masatoshi Okamura, Yukio Miyazaki, Kenji Hashizume | 2002-07-09 |
| 6370108 | Disc cartridge | Masatoshi Okamura | 2002-04-09 |
| 6334268 | Disk storage case | Yukio Miyazaki | 2002-01-01 |