Process for producing a roll stamper for molding a substrate sheet for information recording mediums
US5266136A · kind A · utility
7Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1993 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Feb 1, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2017/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a roll stamper which molds a substrate sheet for information recording mediums by continuously transferring preformat patterns on a resin sheet. The roll stamper has the feature that the preformat pattern on the roll stamper has a value b/a of greater than 1, where the length of the preformat pattern in the direction parallel to the direction in which the resin sheet is transported is defined as a and the length in the direction perpendicular thereto as b.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.