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:
Jun. 24, 2003
Filed:
Jul. 11, 2001
Shigeo Honda, Hiroshima, JP;
Hideyuki Yamane, Hiroshima, JP;
Yoshimi Enoki, Hiroshima, JP;
Shigeki Wagata, Hiroshima, JP;
Delta Tooling Co., Ltd., Hiroshima, JP;
Abstract
A plane magnetic sensor or a plane magnetic sensor for a multidimensional magnetic field analysis which can measure a magnetic field ever a wide area in a short time is provided. A plane magnetic sensor according to the present invention comprises a sensing layer made of a magnetoresistance effect film formed in a planar state with an arbitrary size, to pass a current therethrough due to a tunneling effect only when voltage reaches or exceeds a predetermined value, and to change its resistance value to show a giant magnetoresistance effect when directions of magnetization of magnetic fine particles change according to the strength of a magnetic field, and conductor layers laminated on respective surfaces of the magnetoresistance effect film and are made of a plurality of line conductor films formed in linear shapes along directions of the respective surfaces with predetermined intervals therebetween. The line conductor films of one conductor layer and the line conductor films of the other conductor layer are arranged to intersect to each other in plan view, with the magnetoresistance effect film therebetween.