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. 08, 1988
Filed:
Jun. 27, 1986
Masahiro Kitada, Tokyo, JP;
Hideo Tanabe, Higashimurayama, JP;
Noboru Shimizu, Tokorozawa, JP;
Hitoshi Nakamura, Hachiouji, JP;
Kazuhiro Momata, Chigasaki, JP;
Shigeyoshi Kato, Hatno, JP;
Tooru Takeura, Odawara, JP;
Tetsuo Kobayashi, Kanagawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a magnetoresistive sensor having a magnetoresistive effect element which is held between two sheets of high permeability magnetic ferrite with insulating layers interposed between them, a ferromagnetic metal film is provided adherently to the high permeability magnetic ferrite between the ferrite and the insulating layer, a rise in temperature of the magnetoresistive effect element thereby being held down and a reproduced waveform being made sharp, and thus the characteristics of the element being improved with the life thereof prolonged.