Process for producing magnetic recording material
US4702938A · kind A · utility
4Cited by
0References
4Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 21, 1986 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Nov 21, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for fabricating magnetic tape in which a tape substrate in passed through a stream of evaporating material so as to present a continuously varying angle of incidence to the stream. The maximum and minimum angles of incidence are defined. Oxidizing gas is applied to the tape at the minimum angle of incidence and at an intermediate angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.