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:
Nov. 26, 2013
Filed:
Dec. 10, 2009
Takenori Atsumi, Ibaraki, JP;
Irizo Naniwa, Kanagawa, JP;
Toshiya Shiramatsu, Kanagawa, JP;
Masayuki Kurita, Kanagawa, JP;
Takenori Atsumi, Ibaraki, JP;
Irizo Naniwa, Kanagawa, JP;
Toshiya Shiramatsu, Kanagawa, JP;
Masayuki Kurita, Kanagawa, JP;
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A hard-disk drive. The hard-disk drive includes a head-slider configured to fly in proximity with a recording surface of a magnetic-recording disk, and a fly-height variation compensator configured to generate a signal for compensating variation in fly height of a write element of the head-slider. The head-slider further includes the write element configured to write data to the magnetic-recording disk, a fly-height-adjustment heating element configured to displace the write element towards the magnetic-recording disk, and a position-adjustment heating element configured to displace the write element in at least a direction perpendicular to a flying direction. The fly-height variation compensator is further configured to add the signal for compensating variation in fly height to a control signal for output to the fly-height-adjustment heating element.