Patents by Inventor Haruyuki Nakanishi
Haruyuki Nakanishi 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).
-
Patent number: 8940459Abstract: An alkaline fuel cell electrode catalyst includes a first catalyst particle that contains at least one of iron (Fe), cobalt (Co) and nickel (Ni), a second catalyst particle that contains at least one of platinum (Pt) and ruthenium (Ru), and a carrier for supporting the first catalyst particle and the second catalyst particle.Type: GrantFiled: May 15, 2008Date of Patent: January 27, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Yusuke Kuzushima
-
Patent number: 8932773Abstract: A hydrogen generating apparatus for effectively generating hydrogen from ammonia and relates to the hydrogen generating apparatus for generating hydrogen from ammonia. The apparatus comprises an ammonia oxidation part having ammonia oxidation catalysts which oxidizes ammonia, and an ammonia decomposition part having an ammonia decomposition catalyst which decomposes ammonia to generate nitrogen and hydrogen. The decomposition part is located downstream of the oxidation part in a direction of feed gas flow.Type: GrantFiled: March 11, 2010Date of Patent: January 13, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Hitachi Zosen CorporationInventors: Haruyuki Nakanishi, Hidekazu Arikawa, Susumu Hikazudani, Chikashi Inazumi, Sadao Araki, Takuma Mori
-
Publication number: 20140248441Abstract: In an alkaline fuel cell, an electrode catalyst includes a magnetic material, and catalyst particles supported on the magnetic material. Besides, the alkaline fuel cell includes an electrode that has the function of allowing negative ions to permeate through the electrolyte, and an anode electrode and a cathode electrode respectively disposed on the both sides of the electrode, and at least the cathode electrode of the both electrodes is the electrode catalyst.Type: ApplicationFiled: May 15, 2014Publication date: September 4, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Haruyuki NAKANISHI, Yusuke KUZUSHIMA
-
Publication number: 20140238316Abstract: A hydrogen generator that can be operated in a broad temperature range is disclosed, which comprises a first ammonia conversion part having a hydrogen-generating material which reacts with ammonia in a first temperature range so as to generate hydrogen; a second ammonia conversion part having an ammonia-decomposing catalyst which decomposes ammonia into hydrogen and nitrogen in a second temperature range; an ammonia supply part which supplies ammonia; and an ammonia supply passage which supplies ammonia from said ammonia supply part to the first and second ammonia conversion parts. The first temperature range includes temperatures lower than the second temperature range, and hydrogen is generated from ammonia by selectively using the first and second ammonia conversion parts. An ammonia-burning internal combustion engine and a fuel cell having the hydrogen generator are also disclosed.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kyoichi TANGE, Norihiko NAKAMURA, Haruyuki NAKANISHI, Hidekazu ARIKAWA
-
Patent number: 8815470Abstract: It is a main object of the present invention to provide a fuel cell catalyst in which a support for supporting a metal catalyst has electrical conductivity in itself and which can prevent agglomeration of the metal catalyst during long term use of the fuel cell. In the present invention, the object is achieved by providing a fuel cell catalyst for use in a cathode-side catalyst electrode layer of a solid polymer electrolyte fuel cell, comprising a metal catalyst and a perovskite-type complex oxide (ABO3).Type: GrantFiled: February 24, 2006Date of Patent: August 26, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koshi Sekizawa, Haruyuki Nakanishi
-
Patent number: 8741463Abstract: A fuel cell assembly that includes at least one cell cartridge with two or more cell modules, a pair of electrodes and current collectors, each cell cartridge further having a fixing portion and module connecting portions; and an outer case for storing one or more cell cartridges, the outer case having a plurality of planar cartridge connecting portions.Type: GrantFiled: June 2, 2005Date of Patent: June 3, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Haruyuki Nakanishi
-
Patent number: 8735007Abstract: An alkaline fuel cell having an electrolyte, and anode and cathode electrodes disposed on two sides of the electrolyte is provided. A fuel cell system has this fuel cell, a discharge passageway that is connected to a discharge opening of the fuel cell and that discharges from the fuel cell an exhaust fuel containing unreacted fuel, and a circulation passageway that is connected to an introduction opening for introducing the fuel into the fuel cell and that circulates and supplies the exhaust fuel to the fuel cell. The fuel cell system further includes fuel/water separation means linked to the discharge passageway and the circulation passageway and disposed between the discharge and circulation passageways. The means separates and removes water from the exhaust fuel flowing in from the discharge passageway, and then causes a concentrated fuel from which water has been separated and removed to flow into the circulation passageway.Type: GrantFiled: May 21, 2008Date of Patent: May 27, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Yusuke Kuzushima
-
Patent number: 8657920Abstract: An apparatus and method purify hydrogen from a mixed fluid containing gaseous hydrogen, gaseous oxygen, and liquid water. The apparatus has a mixed fluid channel through which the mixed fluid flows; a first gas channel through which a mixed gas containing gaseous hydrogen and gaseous oxygen flows; a second gas channel through which gaseous hydrogen or oxygen flows; a gas-liquid separating membrane forming a wall between the mixed fluid channel and the first gas channel, separating the mixed gas from the mixed fluid of the mixed fluid channel, and providing the separated mixed gas to the first gas channel; and a hydrogen or oxygen separating membrane forming a wall between the first gas channel and the second gas channel, separating gaseous hydrogen or oxygen from the mixed gas of the first gas channel, and providing the separated gaseous hydrogen or oxygen to the second gas channel.Type: GrantFiled: April 8, 2010Date of Patent: February 25, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Norihiko Nakamura, Hidekazu Arikawa, Hirofumi Fujiwara, Hidehito Kubo, Keiji Toh, Akiko Kumano, Shohei Matsumoto
-
Patent number: 8658228Abstract: A tubular fuel cell module comprising a tubular fuel cell capable of improving current collection efficiency, and a fuel cell comprising the fuel cell module are provided. A fuel cell module (100) includes a plurality of tubular fuel cells (10A, 10A, . . . ) arranged in parallel and a first current collector (35), wherein the tubular fuel cells (10A, 10A, . . . ) are woven by the first current collector (35) in a direction crossing an axial direction of the tubular fuel cells (10A, 10A, . . . ) in a plan view.Type: GrantFiled: February 3, 2006Date of Patent: February 25, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
-
Patent number: 8623313Abstract: The invention provides a process for efficient synthesis of ammonia. The process includes a water-splitting step in which water is decomposed to obtain a first source gas comprising hydrogen and oxygen, a first oxygen removal step in which the oxygen contained in the first source gas is at least partially separated and removed by an oxygen separating membrane or hydrogen separating membrane to obtain a second source gas having a lower oxygen concentration than the first source gas, a second oxygen removal step in which the oxygen in the second source gas is reacted with hydrogen to produce water for removal, or is adsorbed onto an adsorption medium for removal, to obtain a third source gas having a lower oxygen concentration than the second source gas, and an ammonia synthesis step in which the hydrogen in the third source gas is reacted with nitrogen to synthesize ammonia.Type: GrantFiled: December 22, 2009Date of Patent: January 7, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, Hitachi Zosen CorporationInventors: Norihiko Nakamura, Haruyuki Nakanishi, Hidekazu Arikawa, Susumu Hikazudani, Chikashi Inazumi
-
Publication number: 20140001036Abstract: Provided are a photocatalyst having higher activity for hydrogen production through water splitting and a photoelectrode comprising the photocatalyst. The photocatalyst for water splitting of the present invention comprises a Ga selenide, an Ag—Ga selenide, or both thereof.Type: ApplicationFiled: February 20, 2012Publication date: January 2, 2014Inventors: Haruyuki Nakanishi, Tsutomu Minegishi, Kazunari Domen, Jun Kubota, Chika Miwada
-
Patent number: 8597583Abstract: An ammonia synthesis apparatus includes: a first gas channel; a second gas channel disposed outside the first gas channel; a third gas channel disposed outside the second gas channel; an air supply unit that supplies air to the second or third gas channel; a water supply unit that supplies water to the first gas channel; and a heat supply unit that supplies heat to the first gas channel. A metal or a metal oxide that reduces water to produce hydrogen is placed in the first gas channel. An ammonia synthesis catalyst is placed in the second gas channel located downstream of the downstream end portion of the first gas channel. The second and third gas channels are at least partially partitioned by an oxygen permeation membrane, or a nitrogen permeation membrane, so that oxygen is supplied to the third gas channel, and nitrogen is supplied to the second gas channel.Type: GrantFiled: February 12, 2010Date of Patent: December 3, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Hitachi Zosen CorporationInventors: Haruyuki Nakanishi, Norihiko Nakamura, Hidekazu Arikawa, Susumu Hikazudani, Sadao Araki, Chikashi Inazumi
-
Patent number: 8585996Abstract: The invention provides a process for efficient synthesis of ammonia. The process includes a water-splitting step in which water is decomposed to obtain a first source gas comprising hydrogen and oxygen, a first oxygen removal step in which the oxygen contained in the first source gas is at least partially separated and removed by an oxygen separating membrane or hydrogen separating membrane to obtain a second source gas having a lower oxygen concentration than the first source gas, a second oxygen removal step in which the oxygen in the second source gas is reacted with hydrogen to produce water for removal, or is adsorbed onto an adsorption medium for removal, to obtain a third source gas having a lower oxygen concentration than the second source gas, and an ammonia synthesis step in which the hydrogen in the third source gas is reacted with nitrogen to synthesize ammonia.Type: GrantFiled: December 22, 2009Date of Patent: November 19, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Hitachi Zosen CorporationInventors: Norihiko Nakamura, Haruyuki Nakanishi, Hidekazu Arikawa, Susumu Hikazudani, Chikashi Inazumi
-
Patent number: 8574421Abstract: A water-splitting apparatus and method generating hydrogen and oxygen at separate electrodes have a structure enabling a photo catalytic reaction to be efficiently performed. The apparatus includes a photolysis element having an N-type water-splitting electrode surface and a P-type water-splitting electrode surface at the opposite side surface to the N-type water-splitting electrode surface, a hydrogen generating cell holding the N-type water-splitting electrode surface and collecting the hydrogen generated at that water-splitting electrode surface, and an oxygen generating cell holding the P-type water-splitting electrode surface, collecting the oxygen generated at that water-splitting electrode surface, and adjoining the hydrogen generating cell across the photolysis element. The photolysis element has through holes enabling circulation of water between the hydrogen and oxygen generating cells.Type: GrantFiled: March 9, 2010Date of Patent: November 5, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Hidekazu Arikawa
-
Fuel cell with electrode having an electrically conductive nano-column and production method thereof
Patent number: 8486583Abstract: In a fuel cell including an electrolyte membrane and a pair of electrodes disposed on both sides of the electrolyte membrane, at least one of the electrodes has an electrically conductive nanocolumn that is oriented with an inclination of 60° or less with respect to a planar direction of the electrolyte membrane, a catalyst supported on the electrically conductive nanocolumn, and an electrolyte resin coating the electrically conductive nanocolumn.Type: GrantFiled: March 15, 2007Date of Patent: July 16, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Hitachi Zosen CorporationInventors: Haruyuki Nakanishi, Chikashi Inazumi, Yuki Sairyo, Momoyo Sawai, Kenji Yoshikawa, Tomoya Yamashita -
Patent number: 8475722Abstract: The present invention provides a hydrogen generation device using a photocatalyst to generate hydrogen from liquid water or water vapor and a method of using the same. The hydrogen generation device of the present invention has a water channel through which liquid water or water vapor flows, and which has an outer circumferential wall made at least in part of a transparent material; a hydrogen channel through which hydrogen flows and which is located at the inner circumference side of the water channel; a hydrogen separating membrane forming at least part of a wall between the water channel and hydrogen channel, separating hydrogen from the liquid water or water vapor in the water channel, and providing the hydrogen to the hydrogen channel; and a photocatalyst layer arranged on least at part of the water channel-side surface of the hydrogen separating membrane.Type: GrantFiled: April 8, 2010Date of Patent: July 2, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota JidoshokkiInventors: Haruyuki Nakanishi, Norihiko Nakamura, Hidekazu Arikawa, Hirofumi Fujiwara, Hidehito Kubo, Keiji Toh, Akiko Kumano, Shohei Matsumoto
-
Patent number: 8476322Abstract: Provided is a microphase-separated structure membrane including a block copolymer in which a hydrophilic polymer component and a hydrophobic polymer component are coupled to each other via a structural unit having a reactive group, an electron acceptor or electron donor, or a dye. In the microphase-separated structure membrane, a cylinder structure composed of the hydrophilic polymer component lies in a matrix composed of the hydrophobic polymer component and is oriented in the direction perpendicular to the membrane surface, and the structural unit having a reactive group, an electron acceptor or electron donor, or a dye lies between the matrix and the cylinder structure.Type: GrantFiled: September 2, 2008Date of Patent: July 2, 2013Assignees: Tokyo Institute of Technology, Toyota Jidosha Kabushiki KaishaInventors: Tomokazu Iyoda, Sadayuki Asaoka, Yukimitsu Suzuki, Haruyuki Nakanishi, Shinichi Matsumoto, Hidekazu Arikawa
-
Patent number: 8455148Abstract: The present invention provides a fuel cell which is capable to improve heat exchange efficiency with a plurality of tubular cells. The fuel cell of the present invention comprises: a plurality of tubular cells; heat exchangers arranged at the outside of the tubular cells, wherein at least a part of the outer circumferential surface of said tubular cells and the peripheral surface of said heat exchangers have face contact with each other.Type: GrantFiled: August 31, 2006Date of Patent: June 4, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Shigeaki Murata, Masahiro Imanishi, Yoshihisa Tamura
-
Patent number: 8404174Abstract: A main object of the present invention is to provide a method for producing a carbon nanofiber supporting a metal fine particle in which the metal fine particles are supported in high dispersion and sintering of the metal fine particles is restrained. The present invention attains the object by providing a method for producing a carbon nanofiber supporting a metal fine particle comprising a step of: spinning a material composition which contains a nitrogen-containing polymer, including a nitrogen element and capable of forming a carbon nanofiber, and an organometallic compound by an electro spinning process, and the spinning is conducted under a condition which keeps the nitrogen element remained to the carbon nanofiber and allows the formation of the carbon nanofiber.Type: GrantFiled: November 18, 2008Date of Patent: March 26, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Hidekazu Arikawa, Kazuya Uchisasai
-
Patent number: 8383292Abstract: In a fuel cell that includes an electrolyte (10), and an anode (20) and a cathode (30) which constitute a pair of electrodes that are arranged sandwiching the electrolyte (10), the cathode (30) includes catalyst particles (24) and trapping particles (38). The catalyst particles (24) operate as catalysts for a reaction that creates hydroxide ions from oxygen, and the trapping particles (38) trap hydrogen peroxide ions.Type: GrantFiled: May 20, 2008Date of Patent: February 26, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruyuki Nakanishi, Yusuke Kuzushima