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:
Aug. 23, 2011
Filed:
Sep. 14, 2007
Hiroyuki Yamaoka, Ube, JP;
Yoshikatsu Harada, Ube, JP;
Teruaki Fujii, Ube, JP;
Shinichirou Otani, Ube, JP;
Tadashi Matsunaga, Ube, JP;
Hiroyuki Yamaoka, Ube, JP;
Yoshikatsu Harada, Ube, JP;
Teruaki Fujii, Ube, JP;
Shinichirou Otani, Ube, JP;
Tadashi Matsunaga, Ube, JP;
Ube Industries, Ltd., , JP;
Abstract
A silica base composite photocatalyst that has appropriate water purification capability, inhibiting precipitation of metal oxides; and a process for producing the same. The silica base composite photocatalyst is one composed mainly of a composite oxide phase consisting of an oxide phase (first phase) composed mainly of silica component and a titania phase (second phase) wherein the ratio of presence of the second phase increases aslope toward the surface layer, characterized in that at least one metal oxide selected from among strontium titanate and barium titanate is contained in the second phase.