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. 06, 2007
Filed:
Mar. 17, 2005
Applicants:
Akemi Ouchi, Ibaraki, JP;
Tsutomu Maekawa, Ibaraki, JP;
Hidetoshi Fujii, Ibaraki, JP;
Kunihiro Tamahashi, Ibaraki, JP;
Yutaka Shoji, Ibaraki, JP;
Inventors:
Akemi Ouchi, Ibaraki, JP;
Tsutomu Maekawa, Ibaraki, JP;
Hidetoshi Fujii, Ibaraki, JP;
Kunihiro Tamahashi, Ibaraki, JP;
Yutaka Shoji, Ibaraki, JP;
Assignee:
Ricoh Printing Systems, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 11/00 (2006.01); B41J 2/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
Ink jet recording is performed using an ink that is adjusted such that the thickness dependence rate determined by dividing the difference in optical density between images having an ink layer thickness of 30 μm and 15 μm by the ink layer thickness difference of 15 μm is less than 0.043 per unit layer thickness of 1 μm or ΔEab* between the same hues is 8 or less.