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:
Oct. 01, 2002
Filed:
Dec. 20, 1999
Yasuo Hayakawa, Niigata-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a thin film magnetic head that can efficiently dissipate the heat generated by the stationary sensing current, suppress heat diffusion, firing loss, decrease of output levels and deterioration of exchange anisotropic magnetic field as well as being excellent in linear responses and having suppressed Barkhausen noises, wherein the magnetic head comprises at least the magnetoresistive element layer deposited on the lower shield layer via lower gap layer, and the upper shield layer deposited on the electrode layer via the upper gap layer, at least one of the lower gap layer and upper gap layer comprising the highly heat-conductive insulation layer containing at least Al, N, X and O, wherein X is one or plural kinds of the element selected from Si, B, Ge and C.