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.:

US 8130412 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 06, 2012

Filed:

Jun. 26, 2008
Applicant:

Kiyomi Tamagawa, Ashigarakami-gun, JP;

Inventor:

Kiyomi Tamagawa, Ashigarakami-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/60 (2006.01);
U.S. Cl.
CPC ...
Abstract

When a color image is formed on a transparent sheet with a white color material as background color material and C, M, Y, K color materials as process color materials and has colors determined by the total amount of the color materials that are applied per unit area, image formation failures such as ink drooping and ink fixation failures are prevented from occurring. Of four colors or more including white represented by a CMYKW 1-bit pixel signal, the three colors C, M, Y (gray) are replaced with the color K. After the replacement, for three or more of C, M, Y, K, no white color ink is applied since the transparent sheet is opaque without the white color ink. This control process is effective to reduce the number of applications, i.e., the total amount of inks applied, thereby preventing image formation failures such as ink drooping from occurring.


Find Patent Forward Citations

Tamagawa, Kiyomi. (2012). Color image processing method and apparatus capable of reducing the number of application of color materials (U.S. Patent No. 8130412). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8130412

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