Magnetic recording medium
US4575475A · kind A · utility
14Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Jul 10, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic recording medium comprising a plastic base film and a magnetic layer formed thereon, the base film is plasma treated at frequencies in the range of 10 kHz to 200 kHz in an inorganic gas such as argon and nitrogen and preferably, in an inorganic gas containing at least 5% of oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.