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:
Oct. 13, 2015

Filed:

Oct. 10, 2012
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Reiji Iwamoto, Nagoya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary 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 5/20 (2006.01);
U.S. Cl.
CPC ...
G01D 5/145 (2013.01); G01D 5/147 (2013.01); G01D 5/2033 (2013.01);
Abstract

In a position detector utilizing a Hall effect, a magnet is disposed to move relative to a circuit board. A conductive element is printed on the circuit board. A control circuit is mounted on the circuit board and is connected to the conductive element through a position detection wiring. The control circuit supplies an electric current to the conductive element through the position detection wiring such that the electric current flows in the conductive element in a first direction, detects a potential difference in a second direction perpendicular to the first direction in the conductive element, and performs an operation according to a position of the magnet relative to the conductive element based on the potential difference detected.


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