Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826773 | Disc cartridge | Kazuo Hiraguchi | 2004-11-30 |
| 6826145 | Disk cartridge and drive device having a cleaning liner | Kazuo Hiraguchi | 2004-11-30 |
| 6820275 | Disc cartridge with transparent windows | Kazuo Hiraguchi | 2004-11-16 |
| 6816340 | Disk cartridge | Kazuo Hiraguchi | 2004-11-09 |
| 6807028 | Core center for magnetic disk | — | 2004-10-19 |
| 6789261 | Disk cartridge | — | 2004-09-07 |
| 6772430 | Cartridge housing a recording medium and drive device for recording medium | Kazuo Hiraguchi | 2004-08-03 |