Issued Patents All Time
Showing 26–50 of 154 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6542332 | Magnetic disc cartridge with center core cover member | — | 2003-04-01 |
| 6275355 | Magnetic disc cartridge and magnetic disc drive system | — | 2001-08-14 |
| 6018446 | Magnetic disc cartridge with shutter spring | Shinichi Kato, Akira Inaba | 2000-01-25 |
| 6014295 | Magnetic disc cartridge | — | 2000-01-11 |
| 6002556 | Adapter for magnetic disc cartridge | — | 1999-12-14 |
| 5923510 | Magnetic disc cartridge | — | 1999-07-13 |
| 5886859 | Magnetic disc cartridge | — | 1999-03-23 |
| 5870263 | Magnetic disk cartridge | — | 1999-02-09 |
| 5793583 | Magnetic disk cartridge | — | 1998-08-11 |
| 5793582 | Magnetic disk cartridge | — | 1998-08-11 |
| 5761015 | Magnetic disk cartridge having a shutter member provided with a slit at a corner portion | — | 1998-06-02 |
| 5724217 | Magnetic disk cartridge with shutter spring engaging portion and guide projection | — | 1998-03-03 |
| 5708547 | Magnetic disk cartridge | — | 1998-01-13 |
| 5680284 | Center core and shutter for a high density magnetic disk cartridge | — | 1997-10-21 |
| 5346736 | Magnetic tape cassette | Masato Mizuno | 1994-09-13 |
| 5219074 | Magnetic tape cassette | Masato Mizuno | 1993-06-15 |
| 5189584 | Magnetic tape cassette | Masato Mizuno | 1993-02-23 |
| 5186955 | Mold for producing a magnetic tape cassette | Kiyoo Morita | 1993-02-16 |
| 5184268 | Magnetic tape cassette | Masato Mizuno | 1993-02-02 |
| 5175661 | Magnetic tape cassette having positioning holes with wear-resistant coatings | Masato Mizuno | 1992-12-29 |
| 5115366 | Magnetic disk cartridge having a center core which engages with a drive spindle of a disk drive | — | 1992-05-19 |