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:
Aug. 17, 2021
Filed:
Aug. 04, 2020
Screen Holdings Co., Ltd., Kyoto, JP;
Hiroki Endo, Kyoto, JP;
SCREEN HOLDINGS, CO., LTD., Kyoto, JP;
Abstract
There is provided a color matching method including: step of, for each of segmented regions obtained by dividing a region of an entire color chart into a plurality of regions so that boundaries of the segmented regions are parallel to the feeding direction of the base material, determining average color difference between colorimetric values of a color chart outputted from the reference device and colorimetric values of a color chart outputted from the adjustment target device; a step of, taking a segmented region whose average color difference is minimum as the reference region, calculating difference values of the average color differences between the reference region and each of the segmented regions other than the reference region; and a step of specifying a segmented region whose difference value is equal to or greater than a predetermined threshold value as an abnormal region in which abnormality of a head is occurring.