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:
Apr. 28, 2020
Filed:
Dec. 12, 2018
Applicants:
Shigeyuki Harada, Shizuoka, JP;
Takuya Yamazaki, Kanagawa, JP;
Inventors:
Shigeyuki Harada, Shizuoka, JP;
Takuya Yamazaki, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/322 (2014.01); B41J 29/13 (2006.01); B41J 2/175 (2006.01); B41J 29/02 (2006.01); C09D 11/38 (2014.01); C09D 11/40 (2014.01);
U.S. Cl.
CPC ...
C09D 11/322 (2013.01); B41J 2/17509 (2013.01); B41J 2/17513 (2013.01); B41J 29/02 (2013.01); B41J 29/13 (2013.01); C09D 11/38 (2013.01); B41J 2/17553 (2013.01); C09D 11/40 (2013.01);
Abstract
An ink includes water; a coloring material, and a polymer including a structure unit represented by the following Chemical formula 1 and a structure unit represented by the following Chemical formula 2 or the following Chemical formula 3, where R and T each, independently represent hydrogen atoms or methyl groups, L and N each, independently represent single bonds or carbonyl groups, M and Q each, independently represent naphthyl groups or biphenyl groups, p represents an integer of from 2 to 12, and q represents an integer of from 1 to 3.