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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 10668456 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Aug. 09, 2017

Titanium oxide particle, composition for forming photocatalyst, and photocatalyst

Applicant:

Fuji Xerox Co., Ltd., Tokyo, JP;

Inventors:

Takeshi Iwanaga, Kanagawa, JP;

Hiroyoshi Okuno, Kanagawa, JP;

Hideaki Yoshikawa, Kanagawa, JP;

Yasunobu Kashima, Kanagawa, JP;

Sakae Takeuchi, Kanagawa, JP;

Assignee:

FUJI XEROX CO., LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Stefanie J Cohen

Int. Cl.
CPC ...
B01J 31/12 (2006.01); C07F 7/28 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 31/14 (2006.01); B01J 21/18 (2006.01); B01J 31/02 (2006.01); B01J 35/02 (2006.01); C07F 7/18 (2006.01); B01J 37/03 (2006.01); B01J 21/06 (2006.01); C09C 1/36 (2006.01);
U.S. Cl.
CPC ...
B01J 31/12 (2013.01); B01J 21/063 (2013.01); B01J 21/18 (2013.01); B01J 31/02 (2013.01); B01J 31/122 (2013.01); B01J 31/14 (2013.01); B01J 31/143 (2013.01); B01J 35/004 (2013.01); B01J 35/0013 (2013.01); B01J 35/023 (2013.01); B01J 37/0215 (2013.01); B01J 37/0221 (2013.01); B01J 37/031 (2013.01); B01J 37/033 (2013.01); B01J 37/035 (2013.01); C07F 7/1804 (2013.01); C07F 7/28 (2013.01); C09C 1/3684 (2013.01); B01J 31/0274 (2013.01); C01P 2002/85 (2013.01); C01P 2004/51 (2013.01);
Abstract

A titanium oxide particle includes a metal having a hydrocarbon group, which is bonded to a surface of the titanium oxide particle through an oxygen atom, and absorbs light having a wavelength of 450 nm and light having a wavelength of 750 nm, wherein an element ratio C/Ti between carbon C and titanium Ti in a surface of the titanium oxide particle is from 0.3 to 1.2, and a reduced amount of C/Ti on the surface of the titanium oxide particle before and after irradiation with an ultraviolet ray having a wavelength of 352 nm and at an irradiation intensity of 1.3 mW/cmfor 20 hours is from 0.1 to 0.9.

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