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. 03, 2010
Filed:
Sep. 04, 2008
Yoshihiro Sakurai, Ashigarakami-Gun, JP;
Hitoshi Otani, Ashigarakami-Gun, JP;
Kunihito Higa, Ashigarakami-Gun, JP;
Yukio Yamamoto, Kokubunji, JP;
Yoshihiro Sakurai, Ashigarakami-Gun, JP;
Hitoshi Otani, Ashigarakami-Gun, JP;
Kunihito Higa, Ashigarakami-Gun, JP;
Yukio Yamamoto, Kokubunji, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A mark information is recorded in an area which is on a circumference of a magnetic disk corresponding to a last track in which a servo information write is ended or a track, which is one or two in front of the last track in which servo information is not written and the mark information is detected by returning a magnetic head in a radial direction of the magnetic disk by a fine movement stage after the magnetic head is moved to a next aimed track by a coarse movement stage. The servo information write position is detected by the magnetic head and the servo information is written in a servo information write position of a next track by positioning the magnetic head therein by using the fine movement stage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile