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. 26, 2010
Filed:
Jul. 28, 2005
Gity Samadi Hosseinali, Palo Alto, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Robert Langland Smith, Sunnyvale, CA (US);
Gity Samadi Hosseinali, Palo Alto, CA (US);
Vladimir Nikitin, Campbell, CA (US);
Robert Langland Smith, Sunnyvale, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A magnetic data recording head having reduced thermally induced shield (pole tip) protrusion. The head includes a magnetoresistive sensor sandwiched between first and second shield. The shields have a substantially reduced thickness. The distance between the shields defines a gap (G) and the shields each have a thickness (ST) such that the ratio ST/G is greater than 2, but less than 50. More preferably the ratio ST/G is greater than 2, but less than 20, and yet more preferably, the ratio ST/G is greater than 2 and less than 10.