Patents by Inventor Hidekazu Yaginuma
Hidekazu Yaginuma 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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Patent number: 10509290Abstract: An electrochromic apparatus includes a first substrate, a first electrode layer, an electrochromic layer, an electrolyte layer, a second substrate, a second electrode layer, a first extraction electrode layer, a second extraction electrode layer, and a partition wall. The first extraction electrode layer contacts the first electrode layer and is isolated from the second electrode layer and the electrochromic layer. The second extraction electrode layer contacts the second electrode layer and is isolated from the first electrode layer and the electrolyte layer. The partition wall is electrically insulative and sandwiched between the first extraction electrode layer and the electrolyte layer and between the second extraction electrode layer and the electrolyte layer.Type: GrantFiled: February 1, 2018Date of Patent: December 17, 2019Assignee: Ricoh Company, Ltd.Inventors: Sukchan Kim, Tohru Yashiro, Hidekazu Yaginuma, Yoshihisa Naijo, Kohji Takeuchi, Yasuhiro Takahashi, Atsushi Ohshima
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Patent number: 10495937Abstract: 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.Type: GrantFiled: November 17, 2015Date of Patent: December 3, 2019Assignee: RICOH COMPANY, LTD.Inventors: Tohru Yashiro, Keiichiroh Yutani, Sukchan Kim, Satoshi Yamamoto, Takahiko Matsumoto, Fuminari Kaneko, Hidekazu Yaginuma, Mamiko Inoue
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Publication number: 20190309257Abstract: Provided is a method for producing a cell locating plate, including: a step of laminating a structural layer over a plane of a base material, the structural layer being a layer that is formed of a cell non-adhesive material and in which a plurality of holes are formed; a step of coating a coating liquid in the holes and over the plane of the base material exposed through the holes; and a step of discharging a cell suspension onto the plane coated with the coating liquid.Type: ApplicationFiled: April 4, 2019Publication date: October 10, 2019Inventors: Tomoyuki Aratani, Chihiro Kubo, Hidekazu Yaginuma, Naoki Satoh
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Publication number: 20190284524Abstract: Provided is a cell tissue producing method including: a cell adhesive portion forming step of forming a cell adhesive portion formed of a cell adhesive material and having a predetermined shape at a predetermined position over a substrate having a cell non-adhesive surface; and a cell locating step of discharging a cell suspension containing at least cells and a cell drying inhibitor onto the cell adhesive portion in the form of a liquid droplet to locate the cells.Type: ApplicationFiled: March 12, 2019Publication date: September 19, 2019Inventors: Hidekazu YAGINUMA, Naoki SATOH, Tomoyuki ARATANI, Chihiro KUBO, Daisuke TAKAGI, Momoko SHIONOIRI, Natsuko IWASHITA
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Patent number: 10281793Abstract: 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.Type: GrantFiled: May 16, 2016Date of Patent: May 7, 2019Assignee: RICOH COMPANY, LTD.Inventors: Atsushi Ohshima, Shigenobu Hirano, Keiichiroh Yutani, Takahiko Matsumoto, Hidekazu Yaginuma, Kazuaki Tsuji, Sukchan Kim, Yasuo Katano, Kohji Takeuchi, Shun Goto, Tohru Hasegawa, Hiroaki Kobayashi
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Patent number: 10126623Abstract: 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: GrantFiled: December 8, 2016Date of Patent: November 13, 2018Assignee: 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: 20180299740Abstract: 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.Type: ApplicationFiled: June 13, 2018Publication date: October 18, 2018Inventors: Kohji TAKEUCHI, Tohru Yashiro, Takahiko Matsumoto, Sukchan Kim, Shun Goto, Keiichiroh Yutani, Hidekazu Yaginuma, Atsushi Ohshima
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Publication number: 20180231857Abstract: An electrochromic apparatus includes a first substrate, a first electrode layer, an electrochromic layer, an electrolyte layer, a second substrate, a second electrode layer, a first extraction electrode layer, a second extraction electrode layer, and a partition wall. The first extraction electrode layer contacts the first electrode layer and is isolated from the second electrode layer and the electrochromic layer. The second extraction electrode layer contacts the second electrode layer and is isolated from the first electrode layer and the electrolyte layer. The partition wall is electrically insulative and sandwiched between the first extraction electrode layer and the electrolyte layer and between the second extraction electrode layer and the electrolyte layer.Type: ApplicationFiled: February 1, 2018Publication date: August 16, 2018Inventors: Sukchan KIM, Tohru Yashiro, Hidekazu Yaginuma, Yoshihisa Naijo, Kohji Takeuchi, Yasuhiro Takahashi, Atsushi Ohshima
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Publication number: 20180113366Abstract: 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.Type: ApplicationFiled: May 12, 2016Publication date: April 26, 2018Applicant: Ricoh Company, Ltd.Inventors: Fuminari KANEKO, Koh FUJIMURA, Hidekazu YAGINUMA, Keiichiroh YUTANI, Takahiko MATSUMOTO, Mamiko INOUE, Tohru YASHIRO
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Patent number: 9891497Abstract: 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: GrantFiled: June 23, 2016Date of Patent: February 13, 2018Assignee: 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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Electrochromic apparatus, electrochromic element, and method of manufacturing electrochromic element
Patent number: 9869918Abstract: 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: GrantFiled: January 6, 2016Date of Patent: January 16, 2018Assignee: Ricoh Company, Ltd.Inventors: Takahiko Matsumoto, Keiichiroh Yutani, Hidekazu Yaginuma, Koh Fujimura, Fuminari Kaneko, Mamiko Inoue, Sukchan Kim, Satoshi Yamamoto, Tohru Yashiro -
Publication number: 20170329197Abstract: 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.Type: ApplicationFiled: November 17, 2015Publication date: November 16, 2017Applicant: RICOH COMPANY, LTD.Inventors: Tohru YASHIRO, Keiichiroh YUTANI, Sukchan KIM, Satoshi YAMAMOTO, Takahiko MATSUMOTO, Fuminari KANEKO, Hidekazu YAGINUMA, Mamiko INOUE
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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: 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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Publication number: 20160349590Abstract: 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.Type: ApplicationFiled: May 16, 2016Publication date: December 1, 2016Applicant: Ricoh Company, Ltd.Inventors: Atsushi OHSHIMA, Shigenobu Hirano, Keiichiroh Yutani, Takahiko Matsumoto, Hidekazu Yaginuma, Kazuaki Tsuji, Sukchan Kim, Yasuo Katano, Kohji Takeuchi, Shun Goto, Tohru Hasegawa, Hiroaki Kobayashi
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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: 8900784Abstract: To provide a toner which contains a binder resin, a colorant, and capsules, wherein the binder resin contains a thermoplastic elastomer, and wherein the capsules each encapsulate a plasticizer capable of softening the thermoplastic elastomer and the capsules are fractured upon application of predetermined pressure.Type: GrantFiled: May 14, 2012Date of Patent: December 2, 2014Assignee: Ricoh Company, Ltd.Inventors: Yasuo Katano, Yukimichi Someya, Shinji Tezuka, Fuminari Kaneko, Kohji Takeuchi, Kohji Matsuoka, Takuma Nakamura, Tsuneo Kurotori, Hidekazu Yaginuma
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Publication number: 20140340443Abstract: An image formation apparatus includes an application part configured to apply a first solvent onto a recording medium and a jetting part configured to jet an ink-jet ink to be attached to the first solvent applied on the recording medium, wherein the ink-jet ink includes a second solvent, a resin, and a coloring material, wherein the second solvent is soluble in the first solvent and the resin is insoluble in the first solvent and soluble in the second solvent.Type: ApplicationFiled: May 8, 2014Publication date: November 20, 2014Applicant: RICOH COMPANY, LTD.Inventors: Yasuo KATANO, Shinji TEZUKA, Yukimichi SOMEYA, Fuminari KANEKO, Kohji TAKEUCHI, Hidekazu YAGINUMA
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Patent number: 8693939Abstract: A disclosed fixing device includes a fixer application unit configured to apply a fixer containing a softener, capable of softening resin by dissolving or swelling at least a part of the resin, and water to resin particles formed on a recording medium such that the resin particles are fixed on the recording medium. The fixing unit may further include an anti-tack agent application unit configured to apply a liquid anti-tack agent immiscible with the softener to surfaces of the resin particles that are mixed with the softener by the application of the fixer containing the softener.Type: GrantFiled: January 11, 2011Date of Patent: April 8, 2014Assignee: Ricoh Company, Ltd.Inventors: Hidenori Tomono, Yasuo Katano, Yukimichi Someya, Tsuneo Kurotori, Yuko Arizumi, Shigenobu Hirano, Hidekazu Yaginuma, Shigeo Takeuchi, Fuminari Kaneko
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Patent number: 8663893Abstract: To provide a fixing solution for fixing fine resin particles to a recording medium, the fixing solution including: a diluent which contains water; a foaming agent which allows the fixing solution to be in the form of foam; and plasticizers which soften or swell at least part of the fine resin particles, wherein the plasticizers contain a liquid plasticizer which is liquid at normal temperature and soluble in the diluent, and a solid plasticizer which is solid at normal temperature and soluble in the diluent.Type: GrantFiled: July 1, 2010Date of Patent: March 4, 2014Assignee: Ricoh Company, Ltd.Inventors: Yasuo Katano, Tsuneo Kurotori, Yukimichi Someya, Fuminari Kaneko, Yuko Arizumi, Shigeo Takeuchi, Shigenobu Hirano, Hidenori Tomono, Hidekazu Yaginuma