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:
Feb. 06, 2001
Filed:
Sep. 24, 1999
Masatoshi Nakamura, Fujieda, JP;
Hideyuki Kikuchi, Shizuoka, JP;
Murakami Corporation, Shizuoka, JP;
Abstract
An electrochromic layer consisting of an electrochromic material film and an electrolyte is provided between transparent electrode films of two glass substrates. An ultraviolet radiation stabilizing agent is not added to the electrolyte. A photocatalytic layer and a porous inorganic hydrophilic layer are formed on the front surface side of the front side glass substrate to make the surface of the device hydrophilic. The photocatalytic layer is excited by irradiation of ultraviolet radiation and decomposes dirt deposited on the surface of the porous inorganic hydrophilic layer, thereby maintaining the hydrophilic property. Since the photocatalytic layer absorbs ultraviolet radiation, occurrence of a photochromism in the electrochromic material film can be prevented.