Method for producing information storage disk
US4877475A · kind A · utility
30Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1987 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Dec 18, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/24024
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Bonding of a protection sheet on the substrate of the information storing disk is made by revolving the substrate and the protection film with viscous adhesive applied therebetween, to spread it by centrifugal force, and, after slowing down the rotation speed, UV light is irradiated through the protection film to harden the adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.