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. 06, 2019
Filed:
Sep. 14, 2017
Shigeyuki Harada, Shizuoka, JP;
Akihiko Matsuyama, Shizuoka, JP;
Yoshiki Yanagawa, Shizuoka, JP;
Masayuki Fukuoka, Shizuoka, JP;
Takuya Yamazaki, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Tomoyuki Shimada, Shizuoka, JP;
Akiyoshi Sabu, Shizuoka, JP;
Shigeyuki Harada, Shizuoka, JP;
Akihiko Matsuyama, Shizuoka, JP;
Yoshiki Yanagawa, Shizuoka, JP;
Masayuki Fukuoka, Shizuoka, JP;
Takuya Yamazaki, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Tomoyuki Shimada, Shizuoka, JP;
Akiyoshi Sabu, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A copolymer including a structural unit represented by General Formula (1) below, and a structural unit represented by General Formula (2) below, where, in General Formula (1), Ris a hydrogen atom or a methyl group, Lis an alkylene group having 2 or greater carbon atoms but 5 or less carbon atoms, and X is a hydrogen atom or a cation, where, in General Formula (2), Ris a hydrogen atom or a methyl group and Lis an alkylene group having 2 or greater carbon atoms but 18 or less carbon atoms.