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:
Feb. 14, 2023
Filed:
Mar. 11, 2021
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventors:
Tomohiro Nakagawa, Kanagawa, JP;
Hiroki Hagiwara, Kanagawa, JP;
Yuutaroh Nonaka, Kanagawa, JP;
Yuusuke Fujita, Tokyo, JP;
Kazuhiko Umemura, Kanagawa, JP;
Sei Yamamoto, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/037 (2014.01); B41M 5/00 (2006.01); C09D 11/322 (2014.01); C09D 11/38 (2014.01); B41J 2/21 (2006.01); B41J 2/01 (2006.01);
U.S. Cl.
CPC ...
C09D 11/037 (2013.01); B41J 2/01 (2013.01); B41J 2/2107 (2013.01); B41M 5/0023 (2013.01); C09D 11/322 (2013.01); C09D 11/38 (2013.01);
Abstract
An ink contains water, Pigment Red 269, a compound represented by the following Chemical formula (1), and at least one of a silicone compound and an acetylene glycol compound, where the proportion of the compound represented by the following Chemical formula (1) to the Pigment Red 269 is 2.0 percent by mass or less: