Thermo reversible recording medium, member having information memorizing part, thermo reversible recording label, method of and apparatus for image processing
US6794334B2 · kind B2 · utility
1Cited by
22References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 8, 2001 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | May 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The thermo reversible recording medium comprises a substrate and a thermo sensible layer. This thermo sensible layer is made of resin and organic lower molecular weight substance and can become transparent-state or opaque-state depending on temperature. The organic lower molecular weight substance is a linear hydrocarbon-containing compound having no carboxyl group (A) and a linear hydrocarbon-containing compound having no carboxyl group (B) having a melting point lower than the melting point of the linear hydrocarbon-containing compound having no carboxyl group (A) by 20° C. or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.