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:
Mar. 12, 2013
Filed:
Feb. 28, 2011
Yoshihiro Nishiyama, Miyagi-Ken, JP;
Masamichi Saito, Miyagi-Ken, JP;
Akira Takahashi, Miyagi-Ken, JP;
Yosuke Ide, Miyagi-Ken, JP;
Hidekazu Kobayashi, Miyagi-Ken, JP;
Masahiro Iizuka, Miyagi-Ken, JP;
Yoshihiro Nishiyama, Miyagi-Ken, JP;
Masamichi Saito, Miyagi-Ken, JP;
Akira Takahashi, Miyagi-Ken, JP;
Yosuke Ide, Miyagi-Ken, JP;
Hidekazu Kobayashi, Miyagi-Ken, JP;
Masahiro Iizuka, Miyagi-Ken, JP;
Alps Green Devices Co., Ltd., Tokyo, JP;
Abstract
A current sensor includes a magnetic detecting element, a bridge circuit including a plurality of resistance elements, and a feedback coil placed adjacent to the magnetic detecting element and generating a cancelling magnetic field for cancelling the induced magnetic field based on the output from the bridge circuit. The wiring patterns forming the bridge circuit are routed so as not to intersect with each other when seen in a plan view. Only the resistance elements constituting each series circuit of the bridge circuit are connected to each other by the wiring pattern in an enclosed area which encloses each resistance element constituting the bridge circuit, and the wiring pattern branched from the wiring pattern is connected to the terminal which is installed in a quantity of only one, outside the enclosed area.