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:
Sep. 20, 2005
Filed:
Nov. 27, 2002
Hiroshi Kawaguchi, Yokohama, JP;
Shizuo Yamazaki, Odawara, JP;
Makoto Horisaki, Odawara, JP;
Katsumi Watanabe, Odawara, JP;
Kenji Tomida, Matsuda, JP;
Youichi Kusagaya, Mishima, JP;
Hiroshi Kawaguchi, Yokohama, JP;
Shizuo Yamazaki, Odawara, JP;
Makoto Horisaki, Odawara, JP;
Katsumi Watanabe, Odawara, JP;
Kenji Tomida, Matsuda, JP;
Youichi Kusagaya, Mishima, JP;
Hitachi Global Storage Technologies Japan, Ltd., Odawara, JP;
Abstract
The center of rotation of a disk mediumwhen servo information is written thereto coincides as accurately as possible with its center of rotation in the drive into which the disk mediumis assembled. The magnetic disk mediumis fixed to a spindle hub. A centering pinof a push-aside mechanismpushes aside the magnetic disk mediumwith respect to the center of the spindle hubuntil the disk-to-hub gap is moved to one side. Then, with a centering pinof a come-back mechanismplaced in the same line intersecting with the center of the spindle, the magnetic disk mediumis pushed back to the opposite side.