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:
May. 12, 2015
Filed:
Sep. 11, 2013
Applicant:
Hgst Netherlands B.v., Amsterdam, NL;
Inventors:
Assignee:
HGST Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/72 (2006.01); G11B 5/84 (2006.01); G11B 5/31 (2006.01); G11B 5/255 (2006.01);
U.S. Cl.
CPC ...
G11B 5/722 (2013.01); G11B 5/72 (2013.01); G11B 5/8408 (2013.01); G11B 5/3106 (2013.01); G11B 5/84 (2013.01); G11B 5/255 (2013.01);
Abstract
A magnetic recording medium according to one embodiment includes at least a ground layer above a non-magnetic substrate; a magnetic recording layer above the ground layer; and an overcoat above the magnetic recording layer, the overcoat characterized in that said overcoat is an amorphous carbon film, wherein a hydrogen content in the overcoat in a center layer thereof in a film thickness direction of said overcoat is from 0.1 atom % to 1.0 atom %. Additional products and methods are also presented.
Matsumura, Toru. (2015). Hard amorphous carbon film containing ultratrace hydrogen for magnetic recording media and magnetic heads (U.S. Patent No. 9030774). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9030774
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile