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:
Jul. 08, 2008
Filed:
Jan. 05, 2004
Satoshi Yamazaki, Nagano, JP;
Koichi Yoshizawa, Nagano, JP;
Satoshi Yamazaki, Nagano, JP;
Koichi Yoshizawa, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The conventional print-controlling apparatus performs printing with CMY inks and additional inks having a lower lightness than CMY inks, which are mixed in a specific ratio when ejected from the print head, so that colors in the entire range from low to high lightness are expressed. Unfortunately, chromatic color inks differing in hue from CMY inks have a low lightness or a high density, and this leads to poor granularity in the region of high lightness. This disadvantage is eliminated if color conversion is accomplished by using the granularity improvement LUTthat limits the deposition of RV inks. In this way it is possible to limit the ejection of RV inks in the region of high lightness and to improve the ink granularity in the region of high lightness.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile