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:
Apr. 24, 2007
Filed:
Aug. 18, 2004
Masayuki Kurita, Chiyoda, JP;
Masaaki Matsumoto, Fujisawa, JP;
Yuuichi Ootani, Yokohama, JP;
Yoshihiko Miyake, Odawara, JP;
Shinsuke Higuchi, Odawara, JP;
Hideaki Tanaka, Odawara, JP;
Junguo Xu, Chiyoda, JP;
Masayuki Kurita, Chiyoda, JP;
Masaaki Matsumoto, Fujisawa, JP;
Yuuichi Ootani, Yokohama, JP;
Yoshihiko Miyake, Odawara, JP;
Shinsuke Higuchi, Odawara, JP;
Hideaki Tanaka, Odawara, JP;
Junguo Xu, Chiyoda, JP;
Hitachi Global Storage Technologies Japan, Ltd., Odawara-shi, JP;
Abstract
A magnetic disk apparatus includes a rotation mechanism for driving a magnetic disk, a magnetic head slider being floated in close proximity to a surface of the magnetic disk, a recording/reproduction element for performing recording and playback of information, a drive unit for causing a distance between the record/reproduction element and the magnetic disk to change, and an arrangement to effect position determination of the magnetic head slider, wherein the apparatus has a detection unit for permitting the drive unit to gradually reduce the distance between the record/reproduction element and the magnetic disk and for detecting occurrence of contact therebetween, and a control unit for controlling the drive unit in such a way as to cause, the record/reproduction element to shift in position by a fixed amount to thereby let the distance between this element and magnetic disk increase accordingly.