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:
Jul. 02, 2019
Filed:
Jun. 06, 2018
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama-Shi, JP;
Daisuke Fukushi, Yokohama, JP;
Takao Kusaka, Yokohama, JP;
Akira Sato, Yokohama, JP;
Kayo Nakano, Yokohama, JP;
Akihisa Nitsuta, Yokohama, JP;
Yukiko Inui, Yokosuka, JP;
Hiroyasu Oota, Shinagawa-Ku, JP;
Kabushiki Kaisha Toshiba, Minato-Ku, JP;
Toshiba Materials Co., Ltd., Yokohama-Shi, JP;
Abstract
An aqueous dispersion of an embodiment includes visible-light responsive photocatalytic composite microparticles containing tungsten oxide and zirconium oxide, and an aqueous dispersion medium in which the photocatalytic composite microparticles are dispersed. In the photocatalytic composite microparticles, a ratio of a mass of the zirconium oxide to a mass of the tungsten oxide is in a range of from 0.05% to 200%, and a D50 particle size in particle size distribution is in a range of from 20 nm to 10 μm. The aqueous dispersion has pH in a range of from 1 to 9.