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. 17, 2009
Filed:
Mar. 14, 2005
Applicant:
Kazunari Tonami, Tokyo, JP;
Inventor:
Kazunari Tonami, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/46 (2006.01); H04N 1/60 (2006.01); H04N 1/407 (2006.01); H04N 1/409 (2006.01); G06T 5/00 (2006.01); G06F 15/00 (2006.01); G06K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus has a color converter, a BG/UCR processor, a Bk/Lk generator, and a halftone processor. The cyan, the black, and the magenta are halftone screens having substantially equal frequencies and angle differences therebetween each set at approximately 30 degree. The light black is a halftone screen, and the light black and the black have a frequency ratio of 1.0 to 1.2, which is the ratio of the higher one of the frequencies of the light black and the black to the lower one thereof, and have the angle difference of approximately 45 degrees.