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. 21, 2019
Filed:
Mar. 18, 2013
Applicant:
Hoya Corporation, Tokyo, JP;
Inventor:
Yoshihiro Kikuchi, Tokyo, JP;
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B 9/14 (2006.01); B24B 49/00 (2012.01);
U.S. Cl.
CPC ...
B24B 9/148 (2013.01); B24B 49/00 (2013.01);
Abstract
There is provided a circumference calculating device including an expected shape specifying partconfigured to obtain an expected finish shape of a bevel in consideration of an interference amount of a beveling tool when beveling is performed to an uncut spectacle lens; and a theoretical circumference calculating partconfigured to obtain a bevel circumference of the spectacle lens having the expected finish shape obtained by the expected shape specifying partas a theoretical circumference of this spectacle lens.