Patents by Inventor Tohru Yashiro
Tohru Yashiro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170235203Abstract: 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.Type: ApplicationFiled: July 23, 2015Publication date: August 17, 2017Applicant: RICOH COMPANY, LTD.Inventors: Satoshi YAMAMOTO, Kazukiyo NAGAI, Tamotsu HORIUCHI, Keiichiroh YUTANI, Sukchan KIM, Yoshinori OKADA, Hiroyuki TAKAHASHI, Koh FUJIMURA, Yoshihisa NAIJO, Kazuaki TSUJI, Shigenobu HIRANO, Toshiya SAGISAKA, Daisuke GOTO, Keigo TAKAUJI, Mamiko INOUE, Tohru YASHIRO
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Publication number: 20170226413Abstract: To provide an electrochromic compound, represented by the following general formula (I), where Ar1 is a pyridinium ring having a structure represented by the following general formula (IIa), (IIb), or (IIc), where Ar2 is a monovalent heterocyclic ring which may have a substituent, but Ar2 is not a pyridinium ring; R1 to R8 are each independently a monovalent group which may have a functional group, where the monovalent group may have a substituent; A is a monovalent group which may have a functional group, where the monovalent group may have a substituent; and B? is a monovalent anion.Type: ApplicationFiled: June 17, 2015Publication date: August 10, 2017Inventors: Daisuke GOTO, Toshiya SAGISAKA, Shigenobu HIRANO, Satoshi YAMAMOTO, Mamiko INOUE, Tohru YASHIRO, Hiroyuki TAKAHASHI, Koh FUJIMURA, Tamotsu HORIUCHI, Keiichiroh YUTANI, Yoshihisa NAIJO, Yoshinori OKADA, Kazuaki TSUJI, Sukchan KIM, Keigo TAKAUJI
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Patent number: 9688706Abstract: An electrochromic compound, represented by the following general formula (I); where X1 to X4 are each a substituent represented by the following general formula (II), an alkyl group that may contain a functional group, an aromatic hydrocarbon group that may contain a functional group, or a hydrogen atom, and at least two selected from X1 to X4 are the substituents represented by the general formula (II); where R1 to R8 are each independently a hydrogen atom, or a monovalent group that may contain a substituent; B is a substituted or unsubstituted monovalent group that may contain a functional group; A?is a monovalent anion; and m is any of 0 to 3, and R1 to R8, B, and m may each independently be different when a plurality of the substituents represented by the general formula (II) are present.Type: GrantFiled: June 26, 2014Date of Patent: June 27, 2017Assignee: RICOH COMPANY, LTD.Inventors: Mamiko Inoue, Masaomi Sasaki, Tohru Yashiro, Keiichiroh Yutani, Yoshinori Okada, Sukchan Kim, Hiroyuki Takahashi, Koh Fujimura, Yoshihisa Naijo, Kazuaki Tsuji, Shigenobu Hirano, Toshiya Sagisaka, Satoshi Yamamoto, Daisuke Goto, Keigo Takauji
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Publication number: 20170176833Abstract: 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.Type: ApplicationFiled: December 8, 2016Publication date: June 22, 2017Applicant: RICOH COMPANY, LTD.Inventors: Shun GOTO, Tohru YASHIRO, Kohji TAKEUCHI, Sukchan KIM, Takahiko MATSUMOTO, Keiichiroh YUTANI, Hidekazu YAGINUMA, Yasuo KATANO, Atsushi OHSHIMA
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Publication number: 20170168366Abstract: 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 has a functional group directly or indirectly bindable to hydroxyl group.Type: ApplicationFiled: December 12, 2016Publication date: June 15, 2017Applicant: RICOH COMPANY, LTD.Inventors: Masato SHINODA, Satoshi YAMAMOTO, Toshiya SAGISAKA, Daisuke GOTO, Tamotsu HORIUCHI, Hiroyuki TAKAHASHI, Fuminari KANEKO, Mamiko INOUE, Tohru YASHIRO
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Publication number: 20170131609Abstract: Provided is an electrochromic display device, including: a pair of electrodes facing each other; an electrochromic layer provided to one of the pair of electrodes: and an electrolytic solution layer provided between the electrodes facing each other, wherein the electrochromic display device includes an yttrium-containing metal oxide layer between the electrochromic layer and the electrode to which the electrochromic layer is provided.Type: ApplicationFiled: June 30, 2015Publication date: May 11, 2017Applicant: RICOH COMANY, LTD.Inventors: Yoshinori OKADA, Yoshihisa NAIJO, Tohru YASHIRO, Shigenobu HIRANO, Hiroyuki TAKAHASHI, Toshiya SAGISAKA, Keiichiroh YUTANI, Sukchan KIM, Kazuaki TSUJI, Mamiko INOUE, Tamotsu HORIUCHI
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Patent number: 9632385Abstract: Disclosed is an electrochromic display device including a display substrate, a display electrode provided on the display substrate, a first electrochromic layer provided on the display electrode, an intermediate display electrode provided above the first electrochromic layer separately from the first electrochromic layer, a second electrochromic layer provided on and contacting the intermediate display electrode, an opposed substrate, an opposed electrode provided on the opposed substrate, and an electrolyte solution provided between a surface of the display substrate on which the display electrode is formed and a surface of the opposed substrate on which the opposed electrode is formed, wherein the intermediate display electrode contains a rod-shaped, whisker-shaped, or long-fiber-shaped electrically conductive fine particle, and at least a portion of a space in the electrically conductive fine particle is filled with a material forming the second electrochromic layer.Type: GrantFiled: March 22, 2013Date of Patent: April 25, 2017Assignee: RICOH COMPANY, LTD.Inventors: Yoshinori Okada, Tohru Yashiro, Yoshihisa Naijo, Sukchan Kim, Shigenobu Hirano, Koh Fujimura, Hiroyuki Takahashi, Kazuaki Tsuji, Toshiya Sagisaka, Keiichiroh Yutani, Mamiko Inoue
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Publication number: 20170010514Abstract: To provide an electrochromic device including: a support; a first electrode formed on the support; a second electrode facing the first electrode, where through-holes are formed in the second electrode; an electrochromic layer disposed in a space between the first electrode and the second electrode; a first electrolyte layer disposed in the space between the first electrode and the second electrode; a second electrolyte layer disposed to communicate with the first electrolyte layer through the through-holes; an inorganic protective layer, which is disposed on a surface of the second electrolyte layer not facing the second electrode, and is configured to shield oxygen and water vapor; and an organic protective layer disposed on a surface of the inorganic protective layer that does not face the second electrolyte layer.Type: ApplicationFiled: June 23, 2016Publication date: January 12, 2017Applicant: Ricoh Company, Ltd.Inventors: Tohru YASHIRO, Kohji TAKEUCHI, Sukchan KIM, Shun GOTO, Yuuma USUI, Yasuo KATANO, Satoshi YAMAMOTO, Daisuke GOTO, Toshiya SAGISAKA, Masato SHINODA, Mamiko INOUE, Fuminari KANEKO, Hidekazu YAGINUMA, Takahiko MATSUMOTO, Keiichiroh YUTANI, Tamotsu HORIUCHI, Hiroyuki TAKAHASHI
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Patent number: 9500926Abstract: Disclosed is an electrochromic display element, including a display substrate, a display electrode, an electrochromic layer, an opposed electrode, and an opposed substrate, wherein the electrochromic layer is formed on the display electrode, a liquid crystal composition that includes a low-molecular liquid crystal and an ionic liquid is present between the display electrode and the opposed electrode, and the ionic liquid includes a tetracyanoboric acid ion and/or tris(pentafluoroethyl)trifluorophosphoric acid ion as an anionic component.Type: GrantFiled: January 16, 2014Date of Patent: November 22, 2016Assignee: RICOH COMPANY, LTD.Inventors: Koh Fujimura, Tohru Yashiro, Shigenobu Hirano, Hiroyuki Takahashi, Yoshinori Okada, Yoshihisa Naijo, Kazuaki Tsuji, Sukchan Kim, Keiichiroh Yutani
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Publication number: 20160276609Abstract: A dye-sensitized solar cell, which contains: a transparent electroconductive film substrate; a first electrode provided with a layer of an electron-transporting compound, which is composed of nano particles each coated with a sensitizing dye; a charge transfer layer; a hole transport layer; and a second electrode, wherein the first electrode, the charge transfer layer, the hole transport layer, and the second electrode are provided in this order on the transparent electroconductive film substrate, and wherein the charge transfer layer contains a metal complex salt, and the hole transport layer contains a polymer.Type: ApplicationFiled: November 26, 2014Publication date: September 22, 2016Applicant: Ricoh Company, Ltd.Inventors: Tamotsu HORIUCHI, Tohru YASHIRO, Hiroshi SEGAWA, Satoshi UCHIDA
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ELECTROCHROMIC APPARATUS, ELECTROCHROMIC ELEMENT, AND METHOD OF MANUFACTURING ELECTROCHROMIC ELEMENT
Publication number: 20160209721Abstract: An electrochromic apparatus including a first support, a first electrode, a first transparent conductive layer, an electrochromic layer, a second support, a second electrode, a second transparent conductive layer, and an electrolyte layer is provided. The first and second supports have first and second surfaces, respectively, on each of which a plurality of grooves is formed. The grooves on the second surface are facing the grooves on the first surface. The first and second electrodes are disposed at each one of the plurality of grooves of the first and second supports, respectively. The first and second transparent conductive layers are in contact with the first and second surfaces, respectively. The electrochromic layer is in contact with the first transparent conductive layer. The electrolyte layer is between the electrochromic layer and the second transparent conductive layer.Type: ApplicationFiled: January 6, 2016Publication date: July 21, 2016Inventors: Takahiko Matsumoto, Keiichiroh Yutani, Hidekazu Yaginuma, Koh Fujimura, Fuminari Kaneko, Mamiko Inoue, Sukchan Kim, Satoshi Yamamoto, Tohru Yashiro -
Patent number: 9389480Abstract: A method for manufacturing an electrochromic display device can include a step of applying and attaching a fine particle with a predetermined particle diameter to a display substrate, a step of film-forming a transparent electrically conductive film after the fine particle is applied thereto, a step of removing the fine particle to remove a transparent electrically conductive film attached to a surface of the fine particle and to form a display electrode having a fine through-hole at a position at which the fine particle has been attached thereto, and a step of forming an electrochromic layer on the display electrode.Type: GrantFiled: March 29, 2013Date of Patent: July 12, 2016Assignee: RICOH COMPANY, LTD.Inventors: Yoshihisa Naijo, Tohru Yashiro, Shigenobu Hirano, Yoshinori Okada, Sukchan Kim, Koh Fujimura, Hiroyuki Takahashi, Kazuaki Tsuji
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Publication number: 20160108072Abstract: An electrochromic compound, represented by the following general formula (I); where X1 to X4 are each a substituent represented by the following general formula (II), an alkyl group that may contain a functional group, an aromatic hydrocarbon group that may contain a functional group, or a hydrogen atom, and at least two selected from X1 to X4 are the substituents represented by the general formula (II); where R1 to R8 are each independently a hydrogen atom, or a monovalent group that may contain a substituent; B is a substituted or unsubstituted monovalent group that may contain a functional group; A? is a monovalent anion; and m is any of 0 to 3, and R1 to R8, B, and m may each independently be different when a plurality of the substituents represented by the general formula (II) are present.Type: ApplicationFiled: June 26, 2014Publication date: April 21, 2016Applicant: RICOH COMPANY, LTD.Inventors: Mamiko INOUE, Masaomi SASAKI, Tohru YASHIRO, Keiichiroh YUTANI, Yoshinori OKADA, Sukchan KIM, Hiroyuki TAKAHASHI, Koh FUJIMURA, Yoshihisa NAIJO, Kazuaki TSUJI, Shigenobu HIRANO, Toshiya SAGISAKA, Satoshi YAMAMOTO, Daisuke GOTO, Keigo TAKAUJI
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Patent number: 9318270Abstract: An perovskite solar cell including a substrate; a first electrode provided on the substrate; an electron transport layer, including an electron transporting compound, provided on the first electrode; a perovskite compound layer, including a perovskite compound, provided on the electron transport layer; a hole transport layer, including a hole transport compound, provided on the perovskite compound layer; and a second electrode provided on the hole transport layer. The perovskite compound can be expressed by the general formula X?Y?M?, where X is a halogen atom, Y is an alkylamine compound, M includes a mixture of lead and antimony, and a ratio of ?:?:? is 3:1:1.Type: GrantFiled: March 25, 2015Date of Patent: April 19, 2016Assignee: RICOH COMPANY, LTD.Inventors: Tamotsu Horiuchi, Tohru Yashiro, Yuuji Tanaka
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Patent number: 9304368Abstract: An electrochromic device, which contains: one support; a first electrode layer formed on the support; a second electrode layer provided to face the first electrode layer; an electrochromic layer provided to be in contact with the first electrode layer or the second electrode layer; a solid electrolyte layer containing inorganic particles, which is filled between the first electrode layer and the second electrode layer, and is provided to be in contact with the electrochromic layer; and a protective layer provided on the second electrode layer.Type: GrantFiled: January 9, 2015Date of Patent: April 5, 2016Assignee: RICOH COMPANY, LTD.Inventors: Tohru Yashiro, Shigenobu Hirano, Toshiya Sagisaka, Mamiko Inoue, Hiroyuki Takahashi, Koh Fujimura, Yoshihisa Naijo, Kazuaki Tsuji, Yoshinori Okada, Sukchan Kim, Keiichiroh Yutani, Tamotsu Horiuchi
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Publication number: 20160005375Abstract: An electrochromic display device is provided. The electrochromic display device includes a first substrate; a first electrode formed of a transparent conductive film, overlying the first substrate; a second electrode formed of a transparent conductive film, overlying the first electrode; a white reflective layer, overlying the second electrode; a reflective layer, overlying the white reflective layer; a support substrate, overlying the reflective layer; an electrochromic layer, adjacent to the first electrode or the second electrode; and an electrolyte, present between the first electrode and the second electrode.Type: ApplicationFiled: June 26, 2015Publication date: January 7, 2016Applicant: RICOH COMPANY, LTD.Inventors: Yoshihisa Naijo, Tohru Yashiro, Hiroyuki Takahashi, Koh Fujimura, Shigenobu Hirano, Toshiya Sagisaka, Satoshi Yamamoto, Daisuke Goto, Keiichiroh Yutani, Yoshinori Okada, Kazuaki Tsuji, Sukchan Kim, Mamiko Inoue, Keigo Takauji, Tamotsu Horiuchi
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Publication number: 20150378233Abstract: Disclosed is an electrochromic display element, including a display substrate, a display electrode, an electrochromic layer, an opposed electrode, and an opposed substrate, wherein the electrochromic layer is formed on the display electrode, a liquid crystal composition that includes a low-molecular liquid crystal and an ionic liquid is present between the display electrode and the opposed electrode, and the ionic liquid includes a tetracyanoboric acid ion and/or tris(pentafluoroethyl)trifluorophosphoric acid ion as an anionic component.Type: ApplicationFiled: March 16, 2014Publication date: December 31, 2015Inventors: Koh FUJIMURA, Tohru YASHIRO, Shigenobu HIRANO, Hiroyuki TAKAHASHI, Yoshinori OKADA, Yoshihisa NAIJO, Kazuaki TSUJI, Sukchan KIM, Keiichiroh YUTANI
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Publication number: 20150331295Abstract: To provide an electrochromic display element, which contains: a display substrate; a display electrode; an electrochromic layer provided in contact with the display electrode; a counter substrate provided to face the display substrate; a counter electrode; a charge retention layer provided in contact with the counter electrode; and an electrolyte layer filling between the display substrate and the counter substrate, wherein the electrochromic layer contains titanium oxide particles, and metal hydroxide is dispersed on surfaces and in inner parts of the titanium oxide particles.Type: ApplicationFiled: May 5, 2015Publication date: November 19, 2015Applicant: RICOH COMPANY, LTD.Inventors: Hiroyuki Takahashi, Tamotsu Horiuchi, Tohru Yashiro, Keiichiroh Yutani, Yoshinori Okada, Sukchan Kim, Koh Fujimura, Yoshihisa Naijo, Kazuaki Tsuji, Shigenobu Hirano, Toshiya Sagisaka, Mamiko Inoue, Satoshi Yamamoto, Daisuke Goto
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Publication number: 20150279573Abstract: An perovskite solar cell including a substrate; a first electrode provided on the substrate; an electron transport layer, including an electron transporting compound, provided on the first electrode; a perovskite compound layer, including a perovskite compound, provided on the electron transport layer; a hole transport layer, including a hole transport compound, provided on the perovskite compound layer; and a second electrode provided on the hole transport layer. The perovskite compound can be expressed by the general formula X?Y?M?, where X is a halogen atom, Y is an alkylamine compound, M includes a mixture of lead and antimony, and a ratio of ?:?:? is 3:1:1.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Applicant: RICOH COMPANY, LTD.Inventors: Tamotsu HORIUCHI, Tohru YASHIRO, Yuuji TANAKA
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Publication number: 20150274761Abstract: To provide an electrochromic compound, represented by the following general formula (I): General Formula (I) where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A? and B? are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): General Formula (II) General Formula (III) where X9, X10, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.Type: ApplicationFiled: November 1, 2013Publication date: October 1, 2015Inventors: Toshiya Sagisaka, Hiroyuki Takahashi, Takashi Okada, Shigenobu Hirano, Tohru Yashiro, Koh Fujimura, Yoshihisa Naijo, Yoshinori Okada, Kazuaki Tsuji, Sukchan Kim, Keiichiroh Yutani, Tamotsu Horiuchi, Mamiko Inoue