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. 12, 2016
Filed:
May. 22, 2014
Applicant:
Mitutoyo Corporation, Kanagawa, JP;
Inventor:
Fujio Maeda, Yokohama, JP;
Assignee:
MITUTOYO CORPORATION, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/34 (2006.01); G01D 5/347 (2006.01);
U.S. Cl.
CPC ...
G01D 5/34707 (2013.01); G01D 5/34746 (2013.01);
Abstract
A scale for a photoelectric encoder includes a scale substrate and a reflection film formed at a predetermined pitch on the scale substrate. A surface of the reflection film forms a reflection surface. A low-reflection surface is formed by etching the scale substrate between reflection films. Accordingly, a scale can be provided which is lower in cost and has favorable yield rates.