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:
Dec. 26, 2006
Filed:
Oct. 18, 2005
Masayuki Kurita, Kanagawa-ken, JP;
Remmelt Pit, Cupertino, CA (US);
Shozo Saegusa, Ibaragi-ken, JP;
Toshiya Shiramatsu, Kanagawa-ken, JP;
Mike Suk, Palo Alto, CA (US);
Hideaki Tanaka, Kanagawa-ken, JP;
Masayuki Kurita, Kanagawa-ken, JP;
Remmelt Pit, Cupertino, CA (US);
Shozo Saegusa, Ibaragi-ken, JP;
Toshiya Shiramatsu, Kanagawa-ken, JP;
Mike Suk, Palo Alto, CA (US);
Hideaki Tanaka, Kanagawa-ken, JP;
Hitachi Global Storage Netherlands B.V., Amsterdam, NL;
Abstract
A system for selectively sensing and removing asperities from hard disk drive disk is disclosed. The system includes a test stand supporting the disk, the test stand having at least one suspension for flying over a surface of the disk. The system also includes a glide pad coupled to the at least one suspension for flying over the surface and locating asperities. A PZT sensor is coupled to the glide pad for sensing and mapping asperities on the surface of the disk. A burnish pad is coupled to the at least one suspension for wearing-away sensed and mapped asperities on the surface of the disk and a thermal fly height controller is coupled to the burnish pad for protruding the burnish pad when it is proximate to one of the mapped asperities for facilitating the wearing-away of the mapped asperity.