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.:

US 7944202 B1

PDF
Full Text
Expired
Date of Patent:
May. 17, 2011

Filed:

Apr. 25, 2008
Applicants:

Tetsuya Koma, Fukui, JP;

Toshio Tanaka, Fukui, JP;

Inventors:

Tetsuya Koma, Fukui, JP;

Toshio Tanaka, Fukui, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/30 (2006.01); G01M 17/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A rotation angle detector is arranged to detect a rotation angle of an object. The rotation angle detector includes a rotor that rotates about a rotation axis according to a rotation of the object, a detecting unit for detecting a rotation of the rotor, a controller for detecting a rotation angle of the rotor based on a detection signal output from the detecting unit, and a case for accommodating the rotor rotatably. The case has at least three elongate holes provided therein. The elongated holes have longitudinal directions extending radially from the rotation axis of the rotor.


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