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. 01, 2014
Filed:
Jul. 07, 2010
Applicant:
Shingo Kiyotani, Tsukuba, JP;
Inventor:
Shingo Kiyotani, Tsukuba, JP;
Assignee:
Mitutoyo Corporation, Kawasaki-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 17/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
An angle detection device formed in the shape of a disk includes: a graduation plate having a plurality of graduation lines being provided radially from the center toward the circumference thereof; and two detectors being disposed along the circumference of the graduation plate in a manner to be opposite to each other in a radial direction, the detectors detecting the graduation lines. The angle detection device is configured to calculate a center error based on angles detected by the detectors.