Magnetic transfer holder and magnetic transfer device
US6947231B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2004 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Mar 31, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/865
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic transfer holder holds a contact body including superimposed master information carriers bearing transfer information in pattern areas and a slave medium. At least one of the two sides of the contact body is held via an elastic body. A surface of this elastic body that faces the master information carrier is circular. An outer diameter D1 of this elastic body is smaller than an outer diameter D2, which is the smaller one of an outer diameter of the master information carrier and that of the slave medium, and larger than an outer diameter D3 of the pattern area. A diameter d1 of a center hole of the elastic body is larger than an outer diameter d2, which is the larger one of a center hole of the master information carrier and that of the slave medium, and smaller than an inner diameter d3 of the pattern area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.