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公开(公告)号：US09926633B2
公开(公告)日：2018-03-27
申请号：US14676734
申请日：2015-04-01
Inventor： Ryosuke Kikuchi , Takaiki Nomura , Kazuhito Hato , Satoru Tamura , Takahiro Kurabuchi
CPC classification number: C25B1/04 , C01B3/042 , C25B1/003 , C25B11/04 , C25B11/0478 , H01G9/20 , Y02E60/364 , Y02E60/368 , Y02P20/135
Abstract: The present invention provides a method for generating hydrogen by water splitting at a higher hydrogen generation efficiency. In the present method, used is a photoelectrochemical cell comprising a container, a liquid stored in the container, a semiconductor electrode contained in the container, and a counter electrode contained in the container. The semiconductor electrode comprises a first semiconductor layer, a light-transmissive conductor layer; and a second semiconductor layer.
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公开(公告)号：US09644276B2
公开(公告)日：2017-05-09
申请号：US14509361
申请日：2014-10-08
Inventor： Satoru Tamura , Kazuhito Hato , Takaiki Nomura , Takahiro Suzuki , Yoshihiro Kozawa , Ryosuke Kikuchi
IPC: C25B1/04 , C25B9/00 , C25B11/04 , H01L31/0687 , C25B1/00 , H01M8/0656 , H01M8/04082
CPC classification number: C25B1/003 , C25B1/04 , C25B11/0452 , C25B11/0478 , H01M8/04201 , H01M8/0656 , Y02E60/368 , Y02P20/135
Abstract: Provided is a semiconductor photoelectrode comprising a first conductive layer; a first n-type semiconductor layer disposed on the first conductive layer; and a second conductive layer covering the first n-type semiconductor layer. The first n-type semiconductor layer has a first n-type surface region and a second n-type surface region. The first n-type surface region is in contact with the first conductive layer. The second n-type surface region is in contact with the second conductive layer. The first n-type semiconductor layer is formed of at least one selected from the group consisting of a nitride semiconductor and an oxynitride semiconductor. The second conductive layer is light-transmissive. The second conductive layer is formed of a p-type oxide conductor.
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公开(公告)号：US11602472B2
公开(公告)日：2023-03-14
申请号：US16789843
申请日：2020-02-13
Inventor： Kunihiro Ukai , Kazuhito Hato
Abstract: A hydrogen-containing gas supply system includes one or more hydrogen-containing gas suppliers, one or more acquirers, and a controller. The one or more hydrogen-containing gas suppliers supply a hydrogen-containing gas to one or more areas in a building. The one or more acquirers acquire information indicating that a person is present in the one or more areas. When it is determined that a person is present in a certain area of the one or more areas in accordance with the information acquired by the acquirers, the controller causes at least one of the one or more hydrogen-containing gas suppliers to supply the hydrogen-containing gas to the certain area.
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公开(公告)号：US10363545B2
公开(公告)日：2019-07-30
申请号：US15452920
申请日：2017-03-08
Inventor： Takaiki Nomura , Hideki Hata , Motomasa Yonezumi , Kazuhito Hato
Abstract: The present invention provides a porous coordination polymer, wherein the porous coordination polymer is formed of unit lattices; each of the unit lattices has a shape of a cube having eight vertexes and twelve sides; each of the vertexes of the unit lattices consists of a Zn4O cluster; each of the sides of the unit lattices consists of a −OOC—C≡C—COO− group. At least a part of the unit lattices contains at least one hydrogen molecule only, or the inside of at least a part of the unit lattices is empty. The present invention provides a novel porous coordination polymer, especially, a porous coordination polymer suitable for separating hydrogen molecules from a gaseous mixture of the hydrogen molecules and impurity molecules (e.g., nitrogen molecules, oxygen molecules, or carbon dioxide molecules).
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Patent Agency Ranking
公开(公告)号：US11730912B2
公开(公告)日：2023-08-22
申请号：US16779693
申请日：2020-02-03
Inventor： Yasufumi Takahashi , Kazuhito Hato , Kunihiro Ukai
CPC classification number: A61M16/122 , A61G10/02 , A61M16/107 , A61M16/12 , A61M2202/02 , A61M2202/0266 , A61M2205/13 , A61M2205/3303 , A61M2205/3334 , A61M2205/3368
Abstract: A hydrogen supply apparatus includes: an air path having an inlet and an outlet; a fan that is disposed in the air path and produces a flow of air from the inlet to the outlet; a first pipe having an end that forms a first supply port through which to supply hydrogen gas to the air path; a flow control device that is attached to the first pipe and adjusts a flow rate of the hydrogen gas; and a hydrogen gas sensor, disposed downstream of the fan or the end in a direction of flow of the air that detects a concentration of the hydrogen gas in the air path, where the end is disposed between the fan and the outlet or between the fan and the inlet in the air path.
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公开(公告)号：US10047444B2
公开(公告)日：2018-08-14
申请号：US14810201
申请日：2015-07-27
Inventor： Satoru Tamura , Kazuhito Hato , Takaiki Nomura , Takahiro Kurabuchi , Yoshihiro Kozawa , Ryousuke Kikuchi
Abstract: Provided is a method for generating hydrogen. The method comprising (a) preparing a hydrogen generation device comprising a container, a photo-semiconductor electrode comprising a substrate, a light-blocking first conductive layer, and a first semiconductor photocatalyst layer, a counter electrode, a conductive wire for electrically connecting the first conductive layer to the counter electrode, and a liquid stored in the container, and (b) irradiating the first semiconductor photocatalyst layer with light to generate hydrogen on the counter electrode. The first conductive layer is interposed between the substrate and the first semiconductor photocatalyst layer. At least a part of the first semiconductor photocatalyst layer is in contact with the liquid. At least a part of the counter electrode is in contact with the liquid. The liquid is selected from the group consisting of an electrolyte aqueous solution and water. The substrate is formed of a resin.
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公开(公告)号：US09774052B2
公开(公告)日：2017-09-26
申请号：US14391176
申请日：2013-12-24
Inventor： Takahiro Suzuki , Takaiki Nomura , Kazuhito Hato , Tatsuo Fujita , Satoru Tamura , Yoshihiro Kozawa
IPC: C25B1/04 , C25B15/08 , H01M8/0656 , H01M8/10 , C25B9/18 , H01M8/04089 , C25B1/00 , H01M8/06 , H01M8/04082 , H01M8/1018
CPC classification number: H01M8/0656 , C25B1/003 , C25B1/04 , C25B9/18 , C25B15/08 , H01M8/04089 , H01M8/04201 , H01M8/10 , H01M2008/1095 , Y02E60/364 , Y02E60/366
Abstract: In a hydrogen producing device, an electrolyte flow path between a plurality of hydrogen producing cells is disposed in a hydrogen production side and in an oxygen production side, separately. Further, an electrolyte flow path is formed through which the electrolyte flows downward from the top between the plurality of hydrogen producing cells, and on the other hand the electrolyte flows upward from the bottom within each hydrogen producing cell. Moreover, a contact point with a produced gas or an atmosphere is provided in a pathway of the electrolyte flow path.
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公开(公告)号：US11417784B2
公开(公告)日：2022-08-16
申请号：US16223885
申请日：2018-12-18
Inventor： Koki Ueno , Ryosuke Kikuchi , Toru Nakamura , Takahiro Kurabuchi , Yasushi Kaneko , Kazuhito Hato , Fumiyasu Oba , Yu Kumagai
IPC: H01L31/032 , C25B1/04 , C01B21/06 , C25B1/55
Abstract: The present disclosure is to provide a multi-junction light energy conversion element including a material having a band gap suitable for a light energy conversion layer located upstream in an incidence direction of light. The present disclosure provides a light energy conversion element, comprising a first light energy conversion layer containing SrZn2N2 and a second light energy conversion layer containing an light energy conversion material. The light energy conversion material has a narrower band gap than the SrZn2N2.
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9.发明申请HYDROGEN PRODUCING DEVICE AND HYDROGEN PRODUCING UNIT AND ENERGY SYSTEM INCLUDING THE HYDROGEN PRODUCING DEVICE AND THE HYDROGEN PRODUCING UNIT 有权氢生产装置和氢生产单元和包括氢生产装置和氢生产单元的能源系统公开(公告)号：US20150072254A1
公开(公告)日：2015-03-12
申请号：US14391176
申请日：2013-12-24
Inventor： Takahiro Suzuki , Takaiki Nomura , Kazuhito Hato , Tatsuo Fujita , Satoru Tamura , Yoshihiro Kozawa
CPC classification number: H01M8/0656 , C25B1/003 , C25B1/04 , C25B9/18 , C25B15/08 , H01M8/04089 , H01M8/04201 , H01M8/10 , H01M2008/1095 , Y02E60/364 , Y02E60/366
Abstract: In a hydrogen producing device, an electrolyte flow path between a plurality of hydrogen producing cells is disposed in a hydrogen production side and in an oxygen production side, separately. Further, an electrolyte flow path is formed through which the electrolyte flows downward from the top between the plurality of hydrogen producing cells, and on the other hand the electrolyte flows upward from the bottom within each hydrogen producing cell. Moreover, a contact point with a produced gas or an atmosphere is provided in a pathway of the electrolyte flow path.
Abstract translation: 在氢制造装置中，分别在氢制造侧和氧制造侧配置多个制氢单元之间的电解液流路。 此外，形成电解质流动路径，电解质通过该电解质流动路径从多个氢产生单元之间的顶部向下流动，另一方面电解质在每个制氢单元内从底部向上流动。 此外，在电解质流路的路径中设置有产生气体或大气的接触点。
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