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. 01, 2022
Filed:
Jan. 17, 2019
Keiichiroh Yutani, Kanagawa, JP;
Tomoo Fukuda, Tokyo, JP;
Hiroyuki Takahashi, Kanagawa, JP;
Koh Fujimura, Tokyo, JP;
Tohru Yashiro, Kanagawa, JP;
Takaaki Konno, Kanagawa, JP;
Noboru Sasa, Kanagawa, JP;
Keiichiroh Yutani, Kanagawa, JP;
Tomoo Fukuda, Tokyo, JP;
Hiroyuki Takahashi, Kanagawa, JP;
Koh Fujimura, Tokyo, JP;
Tohru Yashiro, Kanagawa, JP;
Takaaki Konno, Kanagawa, JP;
Noboru Sasa, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electrochromic element is provided that includes a first substrate and a second substrate that are arranged to oppose each other, a first transparent electrode that is formed on a surface of the first substrate facing the second substrate, a second transparent electrode that is formed on a surface of the second substrate facing the first substrate, and a coloration layer that is arranged between the first transparent electrode and the second transparent electrode. The coloration layer includes an electrochromic material and an electrolyte, and a pattern or a concentration gradient of the electrochromic material is formed in at least a part of the coloration layer.