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:
Mar. 24, 2009
Filed:
Jun. 26, 2006
Kazuhiko Takaishi, Kawasaki, JP;
Tomoyoshi Yamada, Kawasaki, JP;
Masanori Fukushi, Kawasaki, JP;
Tsugito Maruyama, Kawasaki, JP;
Hiroyuki Suzuki, Kawasaki, JP;
Kazuhiko Takaishi, Kawasaki, JP;
Tomoyoshi Yamada, Kawasaki, JP;
Masanori Fukushi, Kawasaki, JP;
Tsugito Maruyama, Kawasaki, JP;
Hiroyuki Suzuki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storing unit stores first correction information for correcting a distortion synchronized with a rotation frequency of servo information of a first disk. A control unit controls positioning of a head on a target track by correcting the servo information of the first disk with the first correction information. Measurement information used for measuring the first correction information is calculated based on second correction information for the servo information in other disk apparatus including a second disk on which the servo information is formed using a common master medium with the first disk.