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:
Sep. 01, 2020
Filed:
Sep. 26, 2017
Nidec-read Corporation, Kyoto, JP;
Tatsufumi Kusuda, Kyoto, JP;
Nidec-Read Corporation, Kyoto, JP;
Abstract
A length measurement device includes: a placement table; cameras imaging images of imaging ranges including target points; first marks within the imaging ranges; a reference position storage unit storing positions of the first marks on a placement surface as first mark reference positions; an image position acquisition unit acquiring, on the basis of the imaged images of the cameras, the target image positions of the target points in the imaged images and the first mark image positions of the first marks in the imaged images; a target position acquisition unit determining positions of the target points on the placement surface on the basis of the target image positions and first mark image positions in the imaged images and the first mark reference positions on the placement surface; and a length acquisition unit determining, on the basis of positions of the target points, the length of a portion to have the length thereof measured.