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:
Nov. 19, 1996
Filed:
May. 11, 1994
Hitachi Metals Limited, Tokyo, JP;
Abstract
In a floating magnetic head, noises produced at the time of reproduction are reduced, thereby enhancing the precision of detection of a track position. The floating magnetic head uses a monocrystal magnetic material constituting an electromagnetic transducer element, and a crystal orientation of the monocrystal magnetic material in the electromagnetic transducer element is parallel to a direction of travel of a medium. In the case of .vertline..lambda..sub.111 .vertline.+2.times.10.sup.-6 .ltoreq..vertline..lambda..sub.100 .vertline., the crystal orientation is in the range of a solid angle of 3.multidot.sin.theta..multidot.cos.phi. which satisfies 0.ltoreq..theta.<10 degrees and 0.ltoreq..phi..ltoreq.360 degrees around [111], and in the case of .vertline..lambda..sub.111 .vertline..gtoreq..vertline..lambda..sub.100 .vertline.+2.times.10.sup.-6, the crystal orientation is in the range of a solid angle of sin .theta..multidot.cos.phi. which satisfies 0.ltoreq..theta.<10 degrees and 0.ltoreq..phi..ltoreq.360 degrees around [100], where .lambda..sub.111 and .lambda..sub.100 respectively represent linear magnetostriction constant of the monocrystal magnetic material in directions <111> and <100>. The monocrystal magnetic material is a monocrystal MnZn ferrite whose chemical composition is represented by 20.ltoreq.MnO.ltoreq.40, 10.ltoreq.ZnO.ltoreq.25 50.ltoreq.Fe.sub.2 O.sub.3 .ltoreq.65 in terms of mol. %.