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. 24, 1998
Filed:
Mar. 15, 1996
Junichi Nagai, Yokohama, JP;
Tetsuya Seike, Tokyo, JP;
Asahi Glass Company Ltd., Tokyo, JP;
Abstract
An electrochromic device of wholly solid type comprising a transparent substrate and a transparent electroconductive film formed on the substrate, and having an oxidation color forming oxide, a cation conductive layer as an electrolyte, a reduction color forming oxide and a transparent electroconductive film, formed sequentially on said transparent electroconductive film formed on the substrate, wherein: (1) the oxidation color forming oxide is a p-type semiconductor of nickel oxide or cobalt oxide, (2) the cation conductive layer has OH groups showing a peak at about 3,300 (1/cm) in its infrared reflectance spectrum and is made of proton conductive SbO.sub.c wherein 1.3.ltoreq.c.ltoreq.2.7, or at least one lithium conductive lithium-containing oxide of LiO.sub.d MO.sub.e wherein 0.01.ltoreq.d.ltoreq.1.0, 1.3.ltoreq.e.ltoreq.2.7, and M is an element selected from the group consisting of Nb, Sb, B, P, Si, Ge, Al, Ce, La and Zr and (3) the reduction color forming oxide is tungsten oxide, molybdenum oxide or titanium oxide.