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:
May. 14, 1991
Filed:
Feb. 22, 1989
Toshiyasu Ito, Kasugai, JP;
Takaaki Mori, Inazawa, JP;
Mamoru Kato, Nagoya, JP;
Masanobu Senda, Aichi, JP;
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Abstract
An electrochromic element including a color-forming film and an electrolyte sandwiched between a pair of substrates each having a electrode film. Each electrode film is divided into a plurality of electrode pieces with micro grooves. One of the electrode films has its electrode pieces intersected with the electrode pieces of the other film so as to define a plurality of pairs of facing surfaces at intersecting portions. Resistors are connected between each of the electrode pieces and a power source to equalize values of current flowing between each of the pairs of the facing surfaces. The resistor may be an ordinary one, or resistance film made of conductive material, or a projected portion projecting from a longitudinal end of the electrode piece. A predetermined shape of cut-out is formed on the projected portion.