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:
Jan. 12, 2010
Filed:
May. 01, 2006
Applicants:
Takayuki Ichihara, Tokyo, JP;
Yoshinori Honda, Kanagawa, JP;
Inventors:
Takayuki Ichihara, Tokyo, JP;
Yoshinori Honda, Kanagawa, JP;
Assignee:
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetic recording medium having excellent fly-ability and corrosion resistance is provided in a high yield by controlling protuberant on a medium surface caused by deposition of giant silicon oxide particles, which are created during the film deposition of a granular recording layer including Si and oxygen. In one embodiment of the invention, a recording layer is deposited by a sputtering method using a target which is composed of a mixture of an alloy including at least Co and powdered crystalline SiO.