The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2001
Filed:
Mar. 03, 1999
Applicant:
Inventor:
Yasunao Kuroda, Osaka, JP;
Assignee:
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/82 ;
U.S. Cl.
CPC ...
G11B 5/82 ;
Abstract
A magnetic recording medium includes a substrate, a data region and a CSS region on a surface of the substrate. Information is recorded in the data region, and a magnetic head is held stationary in the CSS region. A thin film texture is fabricated in the data region by sputtering, and a laser texture is fabricated in the CSS region by laser irradiation. The laser texture includes a plurality of first projections. The thin film texture includes a plurality of second projections. The second projections are lower in height than the first projections.