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:
Jan. 28, 2020
Filed:
Nov. 18, 2015
Hitachi Metals, Ltd., Tokyo, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A magnetic sensor including: a substrate with a main surface; at least two magnetoresistive effect elements formed on the main surface and connected to a power terminal of a bridge circuit; at least two magnetoresistive effect elements formed on the main surface and connected to a ground terminal of the bridge circuit; a first region in which one of the at least two magnetoresistive effect elements connected to the power terminal and one of the at least two magnetoresistive effect elements connected to the ground terminal are disposed; a second region in which another of the at least two magnetoresistive effect elements connected to the power terminal and another of the at least two magnetoresistive effect elements connected to the ground terminal are disposed; and a bias coil including a first bias application part for applying a bias magnetic field to the first region and a second bias application part for applying a bias magnetic field to the second region. Magnetosensitive directions of the two magnetoresistive effect elements connected to the power terminal are the same, magnetosensitive directions of the two magnetoresistive effect elements connected to the ground terminal are the same, and a difference between a cross-sectional area of the first bias application part and a cross-sectional area of the second bias application part is 35.4% or less.