Ricoh Company, Ltd.

Keiichiroh Yutani

Hiroyuki Takahashi

Tohru Yashiro

Sukchan Kim

Koh Fujimura

Satoshi Yamamoto

Mamiko Inoue

Shigenobu Hirano

Kazuaki Tsuji

Yoshinori Okada

Toshiya Sagisaka

Yoshihisa Naijo

Tamotsu Horiuchi

Fuminari Kaneko

Takahiko Matsumoto

Hidekazu Yaginuma

Daisuke Goto

Kohji Takeuchi

Tomoo Fukuda

Tohru Hasegawa

Shun Goto

Takashi Okada

Yasuo Katano

Atsushi Ohshima

Keigo Takauji

Noboru Sasa

Masato Shinoda

Masaomi Sasaki

Kazukiyo Nagai

Yasuhiro Takahashi

Hiroaki Kobayashi

Takashi Tsutsui

Yuuma Usui

Naoki Ura

Yuto Matsuoka

Takaaki Konno

Kayato Ohya

Provided is an electrochromic element including: a support; an electrochromic layer over the support; an electrolyte layer over the support; and a sealant resin layer in contact with the electrochromic layer at longitudinal ends of the electrochromic layer in a layer lamination direction, wherein the electrochromic layer contains a polymerized product of an oxidatively color-developable electrochromic composition containing a radical-polymerizable compound, and the sealant resin layer contains a thermosetting material.

Electrochromic element and electrochromic light control device

Electrochromic device including: first electrode; a first auxiliary electrode; a second electrode; a second auxiliary electrode having average distance of 100 mm or less with the first auxiliary electrode; an electrochromic layer; a solid electrolyte layer; and controlling unit configured to control to apply voltage according to a driving pattern that is at least one selected from the group consisting of a first driving pattern, a second driving pattern, and an initialization driving pattern, wherein the first driving pattern is a driving pattern configured to turn the electrochromic layer into first coloring state, the second driving pattern is a driving pattern configured to turn the first coloring state into a second coloring state that has coloring density lower than coloring density of the first coloring state, and the initialization driving pattern is driving pattern for forming an initial decolored state.

Electrochromic device, wearable device, and method for driving electrochromic device

An electrochromic device includes: an electrochromic element operating in at least one of a first optical characteristic state and a second optical characteristic state; and a temperature measuring device configured to measure temperature, and circuitry to control voltage to be applied to the electrochromic element such that the second optical characteristic state becomes constant irrespective of the measured temperature.

Electrochromic device, control device of electrochromic device, and control method of electrochromic device

An electrochromic element including: a laminated body including a support formed of a resin, a first electrode layer, an electrochromic layer, and a second electrode layer, the support, the first electrode layer, the electrochromic layer, and the second electrode layer being disposed in the laminated body in this order; and a gel electrolyte disposed between the first electrode layer and the second electrode layer, wherein a phase separation temperature of the gel electrolyte is higher than a softening point of the support.

Electrochromic element and production method thereof, electrochromic light-adjusting element, electrochromic light-adjusting lens, and electrochromic device

An electronic device includes electrode layers and supports. The electrode layers and supports include an electrode layer and a support on each of both sides of an electronic functional layer in a thickness direction. Taking-out electrode parts from the electrode layers are exposed in a plane region of at least one of the supports on the both sides.

Electronic device, method for producing electronic device, and photochromatic lens unit

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.

Electrochromic element

Provided is an electrochromic device including an electrochromic element including a protrusion on a periphery of the electrochromic element, and a frame holding the electrochromic element, wherein the protrusion includes an electrode pad, and the frame includes a connecting member configured to electrically connect to the electrode pad.

Electrochromic device

To provide an electrochromic element, which contains: a first electrode; a second electrode; and an electrolyte provided between the first electrode and the second electrode, wherein the first electrode contains a polymer product obtained through polymerization of an electrochromic composition where the electrochromic composition contains a radical polymerizable compound containing triarylamine.

Electrochromic element and electrochromic dimming element

An electrochromic device reversibly and controllably colored and decolored by electricity is provided. The electrochromic device is configured to control at least one of the following functions f1 and f2 based on at least one of an operating environment temperature of the electrochromic device, a continuous elapsed time of a colored state or a decolored state, and an illuminance around the electrochromic device:

Electrochromic device, electronic dimming eyeglasses, augmented reality eyeglasses, and camera

To provide an electrochromic compound, represented by the following general formula (I): where X, X, X, X, X, X, Xand Xare each independently a hydrogen atom or a monovalent substituent; Rand Rare each independently a monovalent substituent; Aand Bare each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): where X, X, X, X, X, X, X, X, X, and Xare each independently a hydrogen atom or a monovalent substituent.

Electrochromic compound, electrochromic composition, and display element

To provide an electrochromic compound, represented by the following general formula where X, X, X, X, X, X, Xand Xare each independently a hydrogen atom or a monovalent substituent; Rand Rare each independently a monovalent substituent; Aand Bare each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): where X, X, X, X, X, X, X, X, X, and Xare each independently a hydrogen atom or a monovalent substituent.

An electrochromic element includes first and second display electrodes arranged at intervals and opposed to each other, at least one of the first and second display electrodes being transparent; an electrolyte provided between the first and second display electrodes; a first electrochromic layer including at least one of an oxidized electrochromic compound and an oxidized electrochromic composition, and contacting the first display electrode and the electrolyte; a second electrochromic layer including at least one of a reduced electrochromic compound and a reduced electrochromic composition, and contacting the second display electrode and the electrolyte; third and fourth auxiliary electrodes contacting the electrolyte; a reduction layer provided on the third auxiliary electrode and including a reductant of a first material; and an oxidation layer provided on the fourth auxiliary electrode and including an oxidant of a second material. The first and second materials can be oxidized and reduced reversibly.

Electrochromic element, display device and driving method thereof

To provide an electrochromic device, including a laminated body, which includes: at least one support; a first electrode layer on the support; an electrochromic layer on the first electrode layer; a second electrode layer disposed to face the first electrode layer; and an electrolyte layer, which fills between the first electrode layer and the second electrode layer, and is on the electrochromic layer, the at least one support including a resin substrate, and the laminated body having a desired curve formed by thermoforming.

Electrochromic device and production method thereof

An electrochromic dimming device is provided. The electrochromic dimming device includes an electrochromic element, a color development power source, a color discharge powder source, and a variable resistance. The color development power source supplies electric power to the electrochromic element when the electrochromic element develops color. The color discharge powder source supplies electric power to the electrochromic element when the electrochromic element discharges color. The variable resistance is disposed on a first current path without being disposed on a second current path. The first current path is formed from the color development power source through a ground via the electrochromic element, and the second current path is formed from the color discharge power source to the ground via the electrochromic element.

Electrochromic dimming device and electrochromic driving device

An electrochromic device including: first substrate; first electrode-layer on the first substrate; electrochromic layer on the first electrode-layer; second substrate facing the first substrate; second electrode-layer formed on surface of the second substrate at side of the first substrate; electrolyte layer formed between the electrochromic layer and the second electrode-layer and curable at least with ultraviolet rays; first extraction electrode to electrically connect between the first electrode-layer and power source and including region that does not transmit ultraviolet rays in at least part of the first extraction electrode; and second extraction electrode to electrically connect between the second electrode-layer and the power source and including region that does not transmit ultraviolet rays in at least part of the second extraction electrode, the region in the first extraction electrode and the region in the second extraction electrode being arranged not to overlap with each other.

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Kanagawa, Japan

Keiichiroh Yutani