Recording and reproducing device which includes a protective film and a monomolecular fluoro organo silicon film
US5425988A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 27, 1993 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Sep 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording and reproducing device is provided. The device comprises a recording medium, a head giving and receiving recording signals to or from the recording medium, and a mechanism section and a circuit section giving and receiving the recording signals, wherein at least one protective film, and at least one fluorine-containing monomolecular film are formed in this order on the recording layer of the recording medium or on the surface of the head which comes into contact with said recording layer, wherein said protective film is a metal film, oxidized metal film, semi-conductor film, oxidized semi-conductor film, or organic monomolecular film, and wherein said fluorine-containing monomolecular film is formed by the chemical adsorption of a specific-type of silane compound that contains a perfluoroalkyl group at the molecular end on the surface of the protective film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.