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:
Nov. 03, 2009
Filed:
Dec. 24, 2002
Toshiaki Anzaki, Osaka, JP;
Yoshifumi Kijima, Osaka, JP;
Kenji Mori, Osaka, JP;
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Abstract
A photocatalyst layer (TiO) is formed on the surface of a substrate (glass plate) through the intermediary of a monoclinic undercoat layer (ZrO), and no dead layer is substantially present between the photocatalyst layer and the undercoat layer. Also, by providing a peel preventing layer between the substrate and the undercoat layer, it is possible to eliminate film peeling between the photocatalyst layer and the substrate, defects and discoloration. A metal element may be doped in the photocatalyst layer, and it is preferable that the metal element is at least one of Sn, Zn, Mo and Fe. The phrase 'no dead layer is substantially present' means that the thickness of the dead layer is 20 nm or less. The thickness of the photocatalyst layer is preferably from 1 nm to 1,000 nm, more preferably from 1 nm to 500 nm.