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:
Jan. 21, 2025
Filed:
Apr. 29, 2021
Applicant:
Mitutoyo Corporation, Kanagawa, JP;
Inventor:
Toshihiko Aoki, Kanagawa, JP;
Assignee:
MITUTOYO CORPORATION, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/14 (2015.01); G01D 5/347 (2006.01); G02B 1/18 (2015.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); G01D 5/34707 (2013.01); G02B 1/18 (2015.01);
Abstract
A scale includes: a substrate; scale gratings that are formed on a face of the substrate and has a plurality of gratings at a predetermined interval; and a protective layer that is made of fluoride and covers the scale gratings and an exposed portion of the face of the substrate.