Patent JPS57130232A successfully refreshed from Google Patents.
JPS57130232A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Magnetic recording medium
Assignee: Maxell Ltd
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Filing: 1981-02-03
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Granted: —
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Expires: 2001-02-03
Abstract
Abstract PURPOSE:To decrease light transmissivity by providing a metal vapor-deposited film on the surface of a base film. CONSTITUTION:On the surface of a base film 1 of polyester, etc., a vapor-deposited film 2 (of favorably 0.01-0.2mum) of metal, such as aluminum, zinc, tin, lead, copper, and silver, is provided and on it, a magnetic layer 3 is further formed.
Inventors
- 👤 Seiji Nishioka
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 18:08
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/73; G11B5/7368
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
JPS5249806A
Cited
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