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:
Apr. 09, 2013
Filed:
Jan. 12, 2010
Applicants:
Hiroshi Ueno, Aichi, JP;
Kouichi Itoigawa, Aichi, JP;
Inventors:
Hiroshi Ueno, Aichi, JP;
Kouichi Itoigawa, Aichi, JP;
Assignee:
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A current sensor includes an annular magnetic core that includes a closed magnetic path including a void in a portion thereof, and a magnetic body for focusing flux of a magnetic field generated around a conductor that carries a measured current, and a magnetic detecting portion for detecting flux of a magnetic field generated in the void of the magnetic core. The magnetic core includes a plurality of pairs of stepped portions on a pair of opposing end surfaces that form the void, the stepped portions descending along a direction separating from the conductor.