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:
Sep. 18, 2012
Filed:
Sep. 27, 2010
Masamichi Saito, Niigata-Ken, JP;
Akira Takahashi, Niigata-Ken, JP;
Masahiro Iizuka, Niigata-Ken, JP;
Tatsuya Kogure, Niigata-Ken, JP;
Yosuke Ide, Niigata-Ken, JP;
Yoshihiro Nishiyama, Niigata-Ken, JP;
Kenji Ichinohe, Niigata-Ken, JP;
Naoki Sakatsume, Niigata-Ken, JP;
Tsuyoshi Nojima, Niigata-Ken, JP;
Shigenobu Miyajima, Niigata-Ken, JP;
Hidekazu Kobayashi, Niigata-Ken, JP;
Masamichi Saito, Niigata-Ken, JP;
Akira Takahashi, Niigata-Ken, JP;
Masahiro Iizuka, Niigata-Ken, JP;
Tatsuya Kogure, Niigata-Ken, JP;
Yosuke Ide, Niigata-Ken, JP;
Yoshihiro Nishiyama, Niigata-Ken, JP;
Kenji Ichinohe, Niigata-Ken, JP;
Naoki Sakatsume, Niigata-Ken, JP;
Tsuyoshi Nojima, Niigata-Ken, JP;
Shigenobu Miyajima, Niigata-Ken, JP;
Hidekazu Kobayashi, Niigata-Ken, JP;
Alps Green Devices Co., Ltd., Tokyo, JP;
Abstract
A magnetic balance type current sensor measures a measured current which flows in a feedback coil when electrical conduction is provided by a voltage difference according to an induction magnetic field from the measured current and an equilibrium state is reached in which the induction magnetic field and a cancel magnetic field cancel each other. Sensor elements in a pair are arranged at positions with magnetic field from the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of one sensor element is aligned in a forward direction with respect to the magnetic field formed by the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of the other sensor element is aligned in a reverse direction with respect to the magnetic field formed by the measured current.