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. 08, 2008
Filed:
Dec. 16, 2002
Masashi Ueda, Nagoya, JP;
Masahiro Nishihara, Nagoya, JP;
Masashi Ueda, Nagoya, JP;
Masahiro Nishihara, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
When forming a test chart for investigating output characteristic relating to yellow color agent, a printer outputs yellow color agent in a plurality of densities that correspond to various density levels and also outputs cyan color agent in a fixed and maximum density. Patches in gradations from cyan to green are formed by overlapping the yellow color agent and the cyan color agent. The patches are formed with respect to a surrounding area that is formed by outputting the cyan color agent in the fixed and maximum density. Accordingly, the colors of the patches are easier to distinguish than when the patches are formed from yellow only. Visual calibration can be easily performed even with the yellow color agent that has a low visual sensitivity.