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. 11, 2017
Filed:
Feb. 18, 2015
Akihiko Matsuyama, Shizuoka, JP;
Shigeyuki Harada, Shizuoka, JP;
Keita Katoh, Shizuoka, JP;
Masayuki Fukuoka, Shizuoka, JP;
Mitsuru Naruse, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Masayasu Nonogaki, Shizuoka, JP;
Akihiko Matsuyama, Shizuoka, JP;
Shigeyuki Harada, Shizuoka, JP;
Keita Katoh, Shizuoka, JP;
Masayuki Fukuoka, Shizuoka, JP;
Mitsuru Naruse, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Masayasu Nonogaki, Shizuoka, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An ink composition contains (a) a pigment represented by chemical formula 1a or chemical formula 1b, (b) a polymer having a structure unit having a diphosphonic acid group and represented by Chemical formula 2, (c) a hydrosoluble solvent, and (d) water.