Patent US2246404A successfully refreshed from Google Patents.
Patent FR2461997A1 successfully refreshed from Google Patents.
FR2461997A1
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FR
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Thin film magnetic alloy recording disc - formed by sputtering etching a substrate coated with magnetic alloy and applying lubrication to the alloy
Assignee: Datapoint Corp
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Filing: 1980-07-22
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Granted: —
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Expires: 2000-07-22
Abstract
Abstract Thin film magnetic alloy recording disc comprises an disc shaped substrate, a layer of magnetic alloy. The surface is etched by sputtering so as to cause practically complete disappearance of adsorbed gas and other contaminants; and a coating of carbon formed on the magnetic alloy. Used for recording numerical information. A self lubricating wear resistant magnetic alloy compsn. is formed on the disc.
Inventors
- 👤 Duane R Secrist
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/84; G11B5/62; G11B5/72; G11B5/727
Claims Analysis
Total Claims: 0
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