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:
Jul. 01, 2014
Filed:
Apr. 12, 2011
Hideaki Tanaka, Odawara, JP;
Kiyonori Shiraki, Odawara, JP;
Atsushi Kato, Odawara, JP;
Ichiro Oodake, Odawara, JP;
Hiroshi Agari, Odawara, JP;
Hideaki Tanaka, Odawara, JP;
Kiyonori Shiraki, Odawara, JP;
Atsushi Kato, Odawara, JP;
Ichiro Oodake, Odawara, JP;
Hiroshi Agari, Odawara, JP;
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A thermally actuated head for magnetic head for magnetic data recording having a contact sensor for detecting contact between the head and a magnetic disk. The contact sensor includes a thermal sensor film and first and second leads, wherein the leads extend at least as far from the ABS as the thermal sensor film. More preferably the leads extend slightly further from the ABS than the sensor film so that contact between the magnetic disk and the contact sensor occurs at the leads rather than at the sensor film. The sensor film can be constructed of NiFe, preferably having 30-70 atomic percent Ni or more preferably 40-60 atomic percent Ni or most preferably 40-50 atomic percent Ni. The leads are preferably constructed of one or more of Ru, Rh or Ta or an alloy whose primary constituents are Ru, Rh or Ta.