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:
Dec. 29, 2015
Filed:
Jul. 26, 2011
Tatsushi Nagae, Gifu-ken, JP;
Yoshiyuki Nakanishi, Gifu-ken, JP;
Soshi Oyama, Fukuoka-ken, JP;
Hideki Kobayashi, Gifu-ken, JP;
Fumiyuki Takasaki, Osaka-fu, JP;
Tatsushi Nagae, Gifu-ken, JP;
Yoshiyuki Nakanishi, Gifu-ken, JP;
Soshi Oyama, Fukuoka-ken, JP;
Hideki Kobayashi, Gifu-ken, JP;
Fumiyuki Takasaki, Osaka-fu, JP;
Toto Ltd., Fukuoka, JP;
Dailchi Kigenso Kagaku Kogyo Co., Ltd., Osaka, JP;
Abstract
Disclosed is an inorganic material that can exhibit an excellent photocatalytic gas decomposition function while maintaining an abrasion resistance on a level that is usually required of this type of inorganic materials. The inorganic material includes an inorganic material base and a photocatalyst layer that is formed by firing and is provided on the surface of the inorganic material base, the photocatalyst layer containing: photocatalyst particles; zirconia particles having a BET specific surface area of not less than 10 m/g or crystalline zirconia particles having a mean crystallite diameter of less than 20 nm; and an alkali silicate. The inorganic material including the photocatalyst layer exhibits a high photocatalytic gas decomposition function while maintaining an abrasion resistance on a level that is usually required of this type of inorganic materials.