Magnetic recording medium
US5501896A · kind A · utility
1Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In the magnetic recording medium, the non-magnetic substrate has an under-coat layer including the first flake powder of non-magnetic material on its surface and further has a back-coat film including the second flake powder of non-magnetic material on the opposite face on the non-magnetic substrate to the one face coated by the magnetic film; thereby splendid property of running durability and electromagnetic transducing characteristics is achieved in spite of thinning the total thickness of the magnetic recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.