JPS5331105A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Information recording member
Assignee: Hitachi Ltd
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Filing: 1976-09-03
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Granted: —
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Expires: 1996-09-03
Abstract
Abstract PURPOSE:The surface of the main recording surface in particular is protected and its change with time is prevented by laminating a specific sub-recording layer on a high density picture information recording member such as an optical disc by laser light.
Inventors
- 👤 Motoyasu Terao
- 👤 Seiji Yonezawa
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-03 17:18
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/243
Claims Analysis
Total Claims: 0
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