Optical recording medium and method of its manufacture
US6177132A · kind A · utility
3Cited by
0References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method for producing an optical recording medium by forming a recording film on a substrate by means of vapor deposition of a pigment material in a high vacuum condition, the temperature (.degree. C.) of an evaporation vessel for heating and evaporating the pigment material is not more than 2.5 times as high as the evaporation starting temperature of the pigment material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.