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.

Date of Patent:
Jul. 29, 2014

Filed:

Dec. 14, 2010
Applicants:

Taisuke Furukawa, Chiyoda-ku, JP;

Koichi Akiyama, Chiyoda-ku, JP;

Takeharu Kuroiwa, Chiyoda-ku, JP;

Yuji Kawano, Chiyoda-ku, JP;

Hiroshi Kobayashi, Chiyoda-ku, JP;

Inventors:

Taisuke Furukawa, Chiyoda-ku, JP;

Koichi Akiyama, Chiyoda-ku, JP;

Takeharu Kuroiwa, Chiyoda-ku, JP;

Yuji Kawano, Chiyoda-ku, JP;

Hiroshi Kobayashi, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01); G01B 7/30 (2006.01); G01R 33/06 (2006.01); G01D 5/14 (2006.01); G01D 5/244 (2006.01); G01R 33/09 (2006.01); G01R 33/00 (2006.01); G01R 29/12 (2006.01);
U.S. Cl.
CPC ...
G01D 5/147 (2013.01); G01D 5/145 (2013.01); G01D 5/24438 (2013.01); G01R 33/09 (2013.01); G01R 29/12 (2013.01);
Abstract

A magnetic position detecting device includes a magnet; first to fourth magnetoelectric conversion elements formed on a virtual plane; and a flux guide made of a magnetic material. The flux guide includes first and second protrusions provided at a distance from each other in a direction parallel to the virtual plane. A specific portion recessed in a concave shape is provided in the flux guide in a mid-portion between the first and second protrusions. The first and fourth magnetoelectric conversion elements are provided approximately in the mid-portion between the first and second protrusions. The second magnetoelectric conversion element is provided between the first protrusion and the mid-portion.


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