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:
Mar. 17, 1992
Filed:
Apr. 25, 1990
Applicant:
Inventors:
Toshiyasu Ito, Kasugai, JP;
Takaaki Mori, Inazawa, JP;
Mamoru Kato, Nagoya, JP;
Masanobu Senda, Aichi, JP;
Takahiko Asaoka, Nagoya, JP;
Assignees:
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359273 ; 359265 ; 359268 ; 359275 ;
Abstract
An electrochromic element comprising a pair of electrode films, at least one of which is a transparent electrode film, a color forming film laminated between both the electrode films and an electrolyte. The color forming film is formed on the electrode film by depositing thereon a conductive metal oxide such as indium oxide and tungsten oxide. The depositing ratio of tungsten oxide and indium oxide preferably is within the range of 10:1 to 3:1 by weight ratio.