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:
Jun. 01, 1993
Filed:
Mar. 06, 1992
Katsuaki Okabayashi, Tokyo, JP;
Takahiko Asaoka, Aichi, JP;
Katsushi Abe, Aichi, JP;
Shiaki Hyodo, Aichi, JP;
Toshiyasu Ito, Aichi, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JP;
Toyoda Gosei Co., Ltd., Aichi, JP;
Abstract
An electrolyte for electrochromic elements which comprises an electrolytic base material to conduct ions and charge-controlling substances contained in the electrolytic base material. The electrolytic base material is composed of a polar organic solvent and a supporting electrolyte and the charge-controlling substance is at least one of oxidizable substances and reducible substances. This electrolyte enables to produce durable electrochromic elements which can balance the charges in both electrodes and avoid a residual color or an uneven color of coloring materials.