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:
Jul. 14, 2020
Filed:
Dec. 05, 2018
Hitachi Metals, Ltd., Tokyo, JP;
Naoki Futakuchi, Tokyo, JP;
Ken Okuyama, Tokyo, JP;
Katsuya Akimoto, Tokyo, JP;
Haruyasu Komano, Tokyo, JP;
Jun Umetsu, Tokyo, JP;
Yujiro Tomita, Tokyo, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A current sensor includes plural bus bars which are each formed rectangular in a cross section, a pair of shield plates that include a magnetic material and are arranged so as to collectively sandwich the plural bus bars therebetween, and plural magnetic detection elements that are each arranged between the bus bars and one of the shield plates. A distance d between a detection position of a magnetic field intensity at an arbitrary one of the magnetic detection elements and a center position in the width direction between one of the bus bars corresponding to the arbitrary magnetic detection element and an other of the bus bars adjacent thereto in the width direction satisfies the following expression: d/w+0.023(w/h)≥0.36 where a width of the shield plates is w and an interval along a height direction of the shield plates is h.