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:
Jul. 10, 2012
Filed:
Apr. 24, 2008
Yoshiaki Yamauchi, Omitama, JP;
Mitsutaka Shizuya, Ryugasaki, JP;
Tatsumi Uchigiri, Yokohama, JP;
Hisahiro Miki, Chigasaki, JP;
Ikuo Nishida, Ebina, JP;
Shinya Tsubota, Mito, JP;
Yoshiaki Yamauchi, Omitama, JP;
Mitsutaka Shizuya, Ryugasaki, JP;
Tatsumi Uchigiri, Yokohama, JP;
Hisahiro Miki, Chigasaki, JP;
Ikuo Nishida, Ebina, JP;
Shinya Tsubota, Mito, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi-LG Data Storage, Inc., Tokyo, JP;
Abstract
There is provided a disc drive by which the fluid loss of a disc is reduced and the electric power consumption of a spindle motor can be decreased. In the disc drive according to the present invention, a rotation load reducing member is provided between a top cover and the disc. The rotation load reducing member is movably supported by a clearance adjustment member. While the disc is rotating, the rotation load reducing member is moved in the direction approaching the disc. Thereby, the thickness of an air layer on the upper surface of the disc is decreased.