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:
Aug. 30, 2011
Filed:
Nov. 20, 2009
Shinji Matsushita, Kanagawa, JP;
Kenichi Kuramoto, Kanagawa, JP;
Kenji Kuroki, Kanagawa, JP;
Takahiro Nishioka, Kanagawa, JP;
Masayuki Ishikawa, Kanagawa, JP;
Shinji Matsushita, Kanagawa, JP;
Kenichi Kuramoto, Kanagawa, JP;
Kenji Kuroki, Kanagawa, JP;
Takahiro Nishioka, Kanagawa, JP;
Masayuki Ishikawa, Kanagawa, JP;
Hitachi Global Storage Technologies, Netherlands, B.V., Amsterdam, NL;
Abstract
A disk drive. The disk drive includes a disk configured to store data, a slider configured to fly in proximity to the disk, and a magnetic-recording head on the slider configured to access the disk. The disk drive also includes a moving mechanism configured to support and to move the head-slider, an adjustment portion configured to adjust clearance between the magnetic-recording head and the disk, and a controller configured to control the adjustment portion to control the clearance. The controller is configured to perform clearance control in a first mode in an operation selected from the group consisting of reading user data and writing user data according to a change in fly height of the slider after a load operation, and subsequently is configured to perform clearance control in a second mode in an operation selected from the group consisting of reading user data and writing user data.