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:
Feb. 17, 1998
Filed:
May. 29, 1996
Yuichi Hayakawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A magnetic head comprising a magnetic core 1, a slider 2 constructed of a non-magnetic ceramic, a supporting plate 3 made of a metal which securely bonds the slider 2, and one or more grooves 4 formed in the surface of the supporting plate 3 which bonds the slider 2. The grooves 4 absorb or moderate warping stress exerted on the supporting plate 3 due to difference in the thermal expansion coefficients of the slider 2 and the supporting plate 3 to prevent warping deformation of the supporting plate 3, thus preventing distortion of the slider 2. This allows maintenance of the flatness of the top surface 2a of the slider 2, prevention of spacing loss, and recording and reproduction with a high degree of reliability.