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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 9670369 B1

PDFFull Text
Date of Patent:
Jun. 06, 2017

Filed:

Sep. 05, 2008

Visible-light-responsive photocatalyst powder, and visible-light-responsive photocatalytic material, photocatalytic coating material and photocatalytic product each using the same

Applicants:

Kayo Nakano, Yokohama, JP;

Akira Sato, Yokohama, JP;

Yasuhiro Shirakawa, Yokohama, JP;

Keiichi Fuse, Yokohama, JP;

Masami Okamura, Yokohama, JP;

Shinya Kasamatsu, Yokohama, JP;

Inventors:

Kayo Nakano, Yokohama, JP;

Akira Sato, Yokohama, JP;

Yasuhiro Shirakawa, Yokohama, JP;

Keiichi Fuse, Yokohama, JP;

Masami Okamura, Yokohama, JP;

Shinya Kasamatsu, Yokohama, JP;

Assignees:

KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;

TOSHIBA MATERIALS CO., LTD., Yokohama-Shi, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Stefanie Cohen

Int. Cl.
CPC ...
B01J 23/30 (2006.01); C09D 7/12 (2006.01); B01J 23/652 (2006.01); B01J 23/68 (2006.01); B01J 23/888 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 37/34 (2006.01); B82Y 30/00 (2011.01); C01G 41/04 (2006.01); C09D 5/16 (2006.01); B01J 35/02 (2006.01); B01J 35/10 (2006.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
C09D 7/1216 (2013.01); B01J 23/30 (2013.01); B01J 23/6527 (2013.01); B01J 23/687 (2013.01); B01J 23/888 (2013.01); B01J 23/8885 (2013.01); B01J 35/004 (2013.01); B01J 35/0013 (2013.01); B01J 37/0238 (2013.01); B01J 37/349 (2013.01); B82Y 30/00 (2013.01); C01G 41/04 (2013.01); C09D 5/1618 (2013.01); C09D 7/1266 (2013.01); B01J 35/023 (2013.01); B01J 35/1014 (2013.01); B01J 35/1019 (2013.01); B01J 35/1023 (2013.01); B01J 37/0246 (2013.01); C01P 2002/72 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/62 (2013.01); C01P 2006/63 (2013.01); C01P 2006/64 (2013.01); C01P 2006/80 (2013.01); C08K 3/22 (2013.01); Y10T 428/2982 (2015.01);
Abstract

A visible-light-responsive photocatalyst powder includes a tungsten oxide powder. The tungsten oxide powder has color whose a* is −5 or less, b* is −5 or more, and L* is 50 or more when the color of the powder is expressed by an L*a*b* color system. Further, the tungsten oxide powder has a BET specific surface area in a range of 11 to 820 m/g.

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