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. 09, 2014
Filed:
Apr. 10, 2009
Keiji Koike, Toyota, JP;
Masayuki Iwasaki, Anjo, JP;
Shiro Ogata, Kawasaki, JP;
Yoshimitsu Matsui, Takeo, JP;
Keiji Koike, Toyota, JP;
Masayuki Iwasaki, Anjo, JP;
Shiro Ogata, Kawasaki, JP;
Yoshimitsu Matsui, Takeo, JP;
Central Motor Wheel Co., Ltd., Anjo-shi, JP;
Sustainable Titania Technology Inc., Tokyo, JP;
Abstract
The present invention relates to a method for preventing or reducing contamination of a surface of a substrate, or protecting a surface of a substrate by making a surface of a substrate hydrophilic, by means of arranging, successively in relation to the substrate, a first layer containing a negatively-charged substance, and a second layer containing a positively-charged substance or containing a positively-charged substance and a negatively-charged substance on the surface of the substrate or in a surface layer of the substrate. In accordance with the present invention, a novel method for preventing or reducing adhesion of contaminants, and color degradation or color change of a substrate over time, can be provided.