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:
Dec. 29, 2009
Filed:
Jul. 09, 2004
Lydia Baril, Sunnyvale, CA (US);
Ciaran A. Fox, Sunnyvale, CA (US);
Jih-shiuan Luo, San Jose, CA (US);
Peter J. Melz, Hollister, CA (US);
Chin-yu Yeh, San Jose, CA (US);
Lydia Baril, Sunnyvale, CA (US);
Ciaran A. Fox, Sunnyvale, CA (US);
Jih-Shiuan Luo, San Jose, CA (US);
Peter J. Melz, Hollister, CA (US);
Chin-Yu Yeh, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A system, method and computer program product provide an annealing process for setting a magnetization condition of a read head. An amount of heat for stabilizing magnetization condition of a read head is calculated. A width and amplitude of a voltage pulse that generates the calculated amount of heat in the read head are calculated. A voltage pulse of the calculated width and amplitude is applied to the read head for generating Joule heating in the read head. The width of the voltage pulse is less than one second.