Method for manufacturing magnetic recording medium and magnetic recording medium
US7223439B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Dec 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/8408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic recording medium and a method for manufacturing the same are provided, which provide high surface recording density and high recording/reading performance. The magnetic recording medium is manufactured by forming an intermediate protective layer between a continuous recording layer and a first mask layer, dividing the continuous recording layer to form divided recording elements, and then removing the first mask layer while leaving the intermediate protective layer on the top of the divided recording elements. Further, gaps between the divided recording elements are filled with a non-magnetic material before removing the first mask layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.