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. 30, 2025
Filed:
Mar. 27, 2024
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Hideki Zaitsu, Fujisawa, JP;
So Ogiwara, Fujisawa, JP;
Yoshio Soyama, Fujisawa, JP;
Kei Yasuna, Fujisawa, JP;
Shuji Nishida, Fujisawa, JP;
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/55 (2006.01); G11B 5/596 (2006.01); G11B 19/04 (2006.01); G11B 20/10 (2006.01);
U.S. Cl.
CPC ...
G11B 5/59672 (2013.01); G11B 5/5539 (2013.01); G11B 19/045 (2013.01);
Abstract
Various illustrative aspects are directed to a data storage device, method, and one or more processing devices that are configured to: determine an initial track pitch based on a performance metric determined for the head; determine a track pitch adjustment based on a measure of servo pattern distortion associated with a region of the disk; and set a final track pitch for the region of the disk based on the track pitch adjustment and the initial track pitch.