Magnetic disk cartridge
US4814927A · kind A · utility
4Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Apr 27, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/505
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disk cartridge comprises a hard case, a magnetic disk sheet rotatably housed in the hard case, and a disk-shaped or polygonal liner disposed between the magnetic disk sheet and an inner wall surface of the hard case for cleaning the recording surface of the magnetic disk sheet. Internal peripheral wall sections at corners of the hard case are formed by linear portions conforming with the outer shape of the polygonal liner, and curved portions conforming with the outer shape of the disk-shaped liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.