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.

Date of Patent:
Jul. 06, 1999

Filed:

Nov. 27, 1996
Applicant:
Inventors:

Masaru Okada, Tokyo, JP;

Hiromi Ito, Tokyo, JP;

Hirofumi Ouchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428413 ; 428418 ; 428457 ; 428469 ; 428692 ; 428693 ; 4284111 ; 428472 ; 360110 ; 360126 ;
Abstract

A magnetic head is disclosed which includes in a preferred embodiment a head core (1) sandwiched between a first slider (2) and a second slider (3) both bonded to the core (1), said first and second sliders (2) and (3) being made from a resin composition comprising an epoxy resin composition and a filler comprising silica having a coefficient of thermal expansion of from 5.times.10.sup.-7 to 6.times.10.sup.-7 /.degree. C. as the main component and from 3 to 30 wt % at least one minor component selected from alumina, mullite, barium titanate, forsterite, steatite, and zircon, the amount of the filler being from 50 to 95 wt % based on the amount of the epoxy resin composition. The magnetic head is inexpensive, does not suffer deterioration of the magnetic characteristics of the head core, and is free from the problem of sticking to a floppy disk, head wear, or media wear.


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