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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.:

US 11339309 B1

PDFFull Text
Date of Patent:
May. 24, 2022

Filed:

Aug. 15, 2017

Polishing liquid and polishing method

Applicant:

Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;

Inventors:

Ken Matsuo, Omuta, JP;

Masayuki Matsuyama, Omuta, JP;

Mikimasa Horiuchi, Omuta, JP;

Akinori Kumagai, Omuta, JP;

Assignee:

Mitsui Mining & Smelting Co., Ltd.;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Binh X Tran

Int. Cl.
CPC ...
C09G 1/02 (2006.01); C08K 3/013 (2018.01); C08K 5/19 (2006.01); C08L 1/10 (2006.01); C08K 3/22 (2006.01); C09K 109/00 (2006.01);
U.S. Cl.
CPC ...
C09G 1/02 (2013.01); C08K 3/013 (2018.01); C08K 5/19 (2013.01); C08L 1/10 (2013.01); C08K 2003/2262 (2013.01); C09K 2109/00 (2013.01);
Abstract

A polishing liquid is provided containing manganese oxide abrasive grains, permanganate ions, and a cellulosic surfactant or a cationic surfactant. The polishing liquid has a pH of 5 or more and 11 or less. The cellulosic surfactant is preferably a carboxymethyl cellulose or a derivative thereof. The cationic surfactant preferably has a quaternary ammonium ion site. The content of the cellulosic surfactant or the cationic surfactant is preferably 0.01 mass % or more and 1.0 mass % or less based on the total amount of the polishing liquid.

Find Patent Forward Citations

Matsuo, Ken. (2022). Polishing liquid and polishing method (U.S. Patent No. 11339309). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11339309

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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