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:
Oct. 13, 2009
Filed:
Jan. 14, 2005
Koichi Sato, Atsugi, JP;
Ryuji Higashi, Atsugi, JP;
Masayuki Ikegami, Atsugi, JP;
Keiichiro Tsubaki, Kawasaki, JP;
Ikuo Nakazawa, Zama, JP;
Sakae Suda, Sagamihara, JP;
Keiko Yamagishi, Ebina, JP;
Takeshi Okada, Zushi, JP;
Kohei Watanabe, Tokyo, JP;
Koichi Sato, Atsugi, JP;
Ryuji Higashi, Atsugi, JP;
Masayuki Ikegami, Atsugi, JP;
Keiichiro Tsubaki, Kawasaki, JP;
Ikuo Nakazawa, Zama, JP;
Sakae Suda, Sagamihara, JP;
Keiko Yamagishi, Ebina, JP;
Takeshi Okada, Zushi, JP;
Kohei Watanabe, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An amphiphilic block copolymer having an ionic functional group, wherein the ratio (N10/N5) of a rotational viscosity (N10) of a 10% by mass solution of the copolymer in purified water to a rotational viscosity (N5) of a 5% by mass solution of the copolymer in purified water is 2.5 or lower.