Hermetically sealed package for optical media disk
US6678239B2 · kind B2 · utility
33Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Jan 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/0427
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hermetically sealed package for an optical media disk includes an oxygen impermeable base and an oxygen impermeable cover layer superposed on the base. The base includes a central portion thereof spaced from the cover layer to form an enclosing chamber for the disk. The cover layer is sealed to the base by a circular seal defining a periphery of the enclosing chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.