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. 20, 2015
Filed:
Jul. 30, 2013
Applicant:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Inventors:
Toshiaki Akutsu, Hitachi, JP;
Hisataka Minami, Hitachi, JP;
Tomohiro Iwano, Hitachi, JP;
Koji Fujisaki, Kokubunji, JP;
Assignee:
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 13/00 (2006.01); C09G 1/02 (2006.01);
U.S. Cl.
CPC ...
C09G 1/02 (2013.01);
Abstract
A polishing agent according to one embodiment of the present invention contains a liquid medium, an abrasive grain including a hydroxide of a tetravalent metal element, a polymer compound having an aromatic ring and a polyoxyalkylene chain, and a cationic polymer, wherein a weight average molecular weight of the polymer compound is 1000 or more.