Magnetic recording medium
US4780354A · kind A · utility
24Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Feb 5, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium comprising a substrate, a plasma polymerized film, and a magnetic layer is improved in physical and electromagnetic properties when the plasma polymerized film is comprised of carbon, or carbon and at least one optional element selected from hydrogen, nitrogen and oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.