Method for refinishing rigid data storage discs
US4528063A · kind A · utility
2Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1984 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Jun 15, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/84
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for refinishing rigid data storage discs for recoating including the steps of removing a magnetically alterable coating and its sub-interfacing material from rigid data storage discs to expose disc substrates, inspecting the substrate for surface discontinuities, measuring the thickness and flatness of the substrates, resurfacing the surfaces of the substrates to remove surface unevenness and surface discontinuities, polishing the surfaces of the substrates to produce a visually mar-free flat substrates, and rinsing and drying the substrate before recoating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.