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:
May. 08, 2012
Filed:
May. 05, 2008
Scott E. Heeren, San Jose, CA (US);
Masaki Kohno, San Jose, CA (US);
Tue Ngo, San Jose, CA (US);
Hitachi Global Storage Technologies, Netherlands B.V., Amsterdam, NL;
Abstract
A method for screening a magnetic-recording head utilizing a simulated-cross-track-gain profile of the magnetic-recording head to provide a manufacturing-qualified, magnetic-recording head. The method includes measuring a track profile of the magnetic-recording head, and providing the simulated-cross-track-gain profile of the magnetic-recording head synthesized utilizing the track profile of the magnetic-recording head. The method also includes calculating a peak-to-peak value of the simulated-cross-track-gain profile, and applying a selection criterion based on the peak-to-peak value of the simulated-cross-track-gain profile to screen the magnetic-recording head for use as the manufacturing-qualified, magnetic-recording head.