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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 11213852 B1

PDFFull Text
Date of Patent:
Jan. 04, 2022

Filed:

Apr. 02, 2019

Photocatalyst layer, photocatalyst, and method for manufacturing photocatalyst

Applicant:

Sharp Kabushiki Kaisha, Sakai, JP;

Inventors:

Takeshi Satoh, Sakai, JP;

Yoshitaka Kawase, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

James A Fiorito

Int. Cl.
CPC ...
B05D 3/06 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 23/652 (2006.01); B01J 23/50 (2006.01); B01J 23/85 (2006.01); B01J 37/02 (2006.01); B05D 7/24 (2006.01); B01J 37/00 (2006.01); B01J 23/30 (2006.01); B05D 5/06 (2006.01); B05D 3/14 (2006.01);
U.S. Cl.
CPC ...
B05D 3/065 (2013.01); B01J 23/30 (2013.01); B01J 23/50 (2013.01); B01J 23/6527 (2013.01); B01J 23/85 (2013.01); B01J 35/004 (2013.01); B01J 35/023 (2013.01); B01J 37/0072 (2013.01); B01J 37/0219 (2013.01); B05D 3/148 (2013.01); B05D 5/06 (2013.01); B05D 7/24 (2013.01); B01J 2523/17 (2013.01); B01J 2523/18 (2013.01); B01J 2523/69 (2013.01); B01J 2523/828 (2013.01);
Abstract

Provided is a photocatalyst layer that improves the photocatalytic performance while suppressing detachment of photocatalyst particles. The photocatalyst layer has a front surface and a rear surface on the opposite side of the front surface. The photocatalyst layer includes photocatalyst particles and a binder. The photocatalyst layer has a first region containing the photocatalyst particles and a second region containing the binder and not containing the photocatalyst particles. The photocatalyst particles include tungsten oxide particles. The photocatalyst particles have contact points being in contact with the rear surface. The ratio of the thickness of the second region to the number-average secondary particle diameter of the photocatalyst particles is 0.20 or more and 0.80 or less.

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