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:
Apr. 30, 2024
Filed:
Jul. 29, 2020
Ricoh Company, Ltd., Tokyo, JP;
Fuminari Kaneko, Kanagawa, JP;
Daisuke Goto, Kanagawa, JP;
Masato Shinoda, Kanagawa, JP;
Ryo Kawamura, Kanagawa, JP;
Naru Tanaka, Chiba, JP;
Tohru Yashiro, Kanagawa, JP;
Mamiko Inoue, Kanagawa, JP;
Naoki Ura, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An electrochromic element including: a first electrode; a second electrode disposed to face the first electrode with a gap between the first electrode and the second electrode; a first electrochromic layer disposed on or above the first electrode, including conductor or semiconductor nano-structures and an electrochromic compound; and an electrolyte layer including an electrolyte, disposed between the first electrochromic layer and the second electrode, wherein the electrochromic compound is a compound represented by General Formula 1, and an anion of the electrolyte is a monovalent anion having oxidation potential higher than reduction potential of a dication of General Formula 1 by 3.1 V or greater, where Xis a monovalent anion having oxidation potential higher than reduction potential of the dication of General Formula 1 by 3.1 V or greater and Wis the dication represented by General Formula 2,