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:
Jan. 31, 2006
Filed:
Jul. 24, 2003
Applicant:
Jen-yuan Chang, San Jose, CA (US);
Inventor:
Jen-Yuan Chang, San Jose, CA (US);
Assignee:
Hitachi Global Storage Technologies Netherlands B.V, Amsterdam, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for algorithmically determining, based on the number of screws used to hold the disks of a disk drive, harmonics of repeatable runout error during disk drive operation, such that correction of the error by feed forward techniques is facilitated.