Process for producing optical recording medium
US5328816A · kind A · utility
7Cited by
14References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Jul 9, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for producing an information recording medium comprising a substrate and provided thereon a recording layer and protective layer comprises the steps of forming on one substrate sheet a plurality of grooved preformats used for information recording mediums, forming a recording layer on the substrate sheet having thereon said plurality of grooved preformats, forming a protective layer on the substrate sheet on which said recording layer has been formed, and cutting the resulting substrate sheet into individual information recording mediums.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.