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. 20, 2018
Filed:
Dec. 01, 2016
Shigeyuki Harada, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Tomoyuki Shimada, Shizuoka, JP;
Takuya Yamazaki, Shizuoka, JP;
Koichiro Oyama, Kanagawa, JP;
Akiyoshi Sabu, Shizuoka, JP;
Akihiko Matsuyama, Shizuoka, JP;
Yoshiki Yanagawa, Shizuoka, JP;
Shigeyuki Harada, Shizuoka, JP;
Kazukiyo Nagai, Shizuoka, JP;
Yuusuke Koizuka, Shizuoka, JP;
Tomoyuki Shimada, Shizuoka, JP;
Takuya Yamazaki, Shizuoka, JP;
Koichiro Oyama, Kanagawa, JP;
Akiyoshi Sabu, Shizuoka, JP;
Akihiko Matsuyama, Shizuoka, JP;
Yoshiki Yanagawa, 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), R is a hydrogen atom or a methyl group and X is a hydrogen atom or a cation, where, in General Formula (2), L is an alkylene group having 2 or more but 18 or less carbon atoms.