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:
Nov. 13, 2012
Filed:
Jun. 25, 2009
Jorge Vicente Hanchi, St. Louis Park, MN (US);
Dian Song, Eden Prairie, MN (US);
John Stuart Wright, Edina, MN (US);
Andrew D. White, Minneapolis, MN (US);
Jorge Vicente Hanchi, St. Louis Park, MN (US);
Dian Song, Eden Prairie, MN (US);
John Stuart Wright, Edina, MN (US);
Andrew D. White, Minneapolis, MN (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
A head or slider having a sensor element to detect changes in head-media spacing is disclosed. In illustrated embodiments the sensor element includes a piezoelectric sensor layer or similar layer that provides acoustic emission or vibration responsive to changes in head-media spacing. In illustrated embodiments, the sensor element is located proximate to the close point of the head and slider. In embodiments described in the specification, output from the sensor element is utilized to energize a heating element or microactuator to control pole tip protrusion or actuation of transducer elements responsive to changes in head-media spacing.