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:
Nov. 11, 2014
Filed:
May. 22, 2012
Mitsuaki Ishitoya, Ibaraki-ken, JP;
Takashi Ebisawa, Ibaraki-ken, JP;
Yoshiyuki Okada, Ibaraki-ken, JP;
Mitsuaki Ishitoya, Ibaraki-ken, JP;
Takashi Ebisawa, Ibaraki-ken, JP;
Yoshiyuki Okada, Ibaraki-ken, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A specific gamut of colors extending a reproduction range of colors in a color space is set to make for any ink color belonging to the specific gamut a conversion from CMYK dot pattern data into numbers of ink drops to be discharged from an inkjet head, using as a lookup table an extended pattern table having a maximal drop number '7'. For ink colors belonging to a gamut of colors outside the specific gamut, a default pattern table having a maximal drop number '5' is used as a lookup table for the conversion from CMYK dot pattern data into ink drop numbers.