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. 26, 2013
Filed:
Aug. 01, 2011
Tohru Yashiro, Kanagawa, JP;
Shigenobu Hirano, Kanagawa, JP;
Yoshihisa Naijo, Kanagawa, JP;
Koh Fujimura, Tokyo, JP;
Masahiro Yanagisawa, Kanagawa, JP;
Masahiro Masuzawa, Kanagawa, JP;
Hitoshi Arita, Kanagawa, JP;
Tohru Yashiro, Kanagawa, JP;
Shigenobu Hirano, Kanagawa, JP;
Yoshihisa Naijo, Kanagawa, JP;
Koh Fujimura, Tokyo, JP;
Masahiro Yanagisawa, Kanagawa, JP;
Masahiro Masuzawa, Kanagawa, JP;
Hitoshi Arita, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrochromic display device includes a display substrate, a counter substrate facing the display substrate, counter electrodes formed on the counter substrate, at least first and second display electrodes arranged between the display substrate and the counter electrodes, the first display electrode and the second display electrode having a predetermined distance from each other, a first electrochromic layer arranged on the first display electrode and a second electrochromic layer arranged on the second display electrode, an electrolyte layer arranged between the respective first and the second display electrodes and the counter electrodes, and a protective layer made of an insulator material formed on a counter electrode facing side surface of one of the first and the second display electrodes such that the protective layer is sandwiched between the selected one of the first and the second display electrodes and a corresponding one of the first and the second electrochromic layers.