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:
May. 03, 2011
Filed:
Mar. 23, 2010
Applicants:
Masaki Tomiya, Zushi, JP;
Hiroaki Kawada, Yokohama, JP;
Inventors:
Masaki Tomiya, Zushi, JP;
Hiroaki Kawada, Yokohama, JP;
Assignee:
Mitutoyo Corporation, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/347 (2006.01); G01B 21/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A linear scale that is used for displacement measurement is provided. The linear scale includes a scale board, a graduation unit, and an attachment unit. The scale board is made of low expansion ceramics. The graduation unit is fixed to an upper surface of the scale board. The graduation unit is read at the time of measurement. The attachment unit is a unit for attaching the scale board to a base member.