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:
Aug. 27, 2002
Filed:
Jul. 26, 1999
Aino Noguchi, Kanagawa-ken, JP;
Yasuo Katano, Kanagawa-ken, JP;
Nobuyuki Yanagawa, Kanagawa-ken, JP;
Tadashi Saito, Kanagawa-ken, JP;
Kiyoshi Tanikawa, Kanagawa-ken, JP;
Kakuji Murakami, Kanagawa-ken, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A powder composition containing a powder of a modified polymer having a recurring unit containing at least one carboxyl group, the carboxyl groups of part of the recurring units being in the form of a salt with an aliphatic amine having at least 6 carbon atoms, and a powder of a surfactant. The powder composition is used for forming an image on a printing medium, in which method the composition is applied over a surface of a transfer medium to form a layer of the powder. An image of a liquid ink capable of dissolving or swelling the powder is then formed on the layer so that the viscosity of the liquid ink increases when contacted with the powder. The image on the transfer medium is contacted with the printing medium so that the image is transferred to the printing medium.