Patent · US Active

Electrochromic element

US10054834B2 · kind B2 · utility

3Cited by

10References

7Claims

0Family size

Assignee

RICOH COMPANY, LTD. · JP

Inventors

Masato Shinoda · Yokohama, JP
Satoshi Yamamoto · Yokohama, JP
Toshiya Sagisaka · Yokohama, JP
Daisuke Goto · Musashino, JP
Tamotsu Horiuchi · Shizuoka, JP
Hiroyuki Takahashi · Kasai, JP
Fuminari Kaneko · Tokyo, JP
Mamiko Inoue · Ebina, JP
Tohru Yashiro · Yokohama, JP

Key dates

Filing date	Dec 12, 2016
Grant date	Aug 21, 2018
Priority date	—
Expiry date	Dec 12, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/36
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An electrochromic element is provided. The electrochromic element includes a first electrode, a second electrode, an electrolyte disposed between the first electrode and the second electrode, a first layer overlying the first electrode, and a second layer overlying the second electrode. The first layer contains an oxidizable color-developing electrochromic compound. The second layer contains a compound having the following formula (1): wherein each of R1 to R5 independently represents a hydrogen atom, a halogen atom, or a monovalent organic group, and at least one of R1 to R5 includes a functional group directly or indirectly bindable to a hydroxyl group (OH).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.