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:
Feb. 28, 2012
Filed:
Feb. 09, 2009
Applicant:
Yoshihiko Matsuzawa, Matsumoto, JP;
Inventor:
Yoshihiko Matsuzawa, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A test chart used for color calibration includes: the number of patches of a first color; and the number of patches of a second color. The number of patches of the first color is determined on the basis of the degree of variation in the colorimetric value of the first color in a color space on a medium, and the number of patches of the second color is determined on the basis of the degree of variation in the colorimetric value of the second color in the color space on the medium.