Disc coating method
US4452819A · kind A · utility
3Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1982 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Aug 30, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D3/067
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A manufacturing method for an optical type recording and reproducing disc and the like, comprising the steps of, applying a coating liquid to opposite planar surfaces of the disc except for the central portions by rotating the disc, with the opposite planar surfaces of the disc being simultaneously dipped in the coating liquid, and thereafter, simultaneously curing the coating liquid applied to the opposite planar surfaces of the disc while rotating the disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.