Patents by Inventor Toshiharu Yokoyama
Toshiharu Yokoyama 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: 11964260Abstract: Provided is a method for manufacturing a catalyst with which it is possible to obtain a supported metal ammonia synthesis catalyst, in which there are restrictions in terms of producing method and producing facility, and particularly large restrictions for industrial-scale producing, in a more simple manner and so that the obtained catalyst has a high activity. This method for manufacturing an ammonia synthesis catalyst includes: a first step for preparing 12CaO·7Al2O3 having a specific surface area of 5 m2/g or above; a second step for supporting a ruthenium compound on the 12CaO·7Al2O3; and a third step for performing a reduction process on the 12CaO·7Al2O3 supporting the ruthenium compound, obtained in the second step. This invention is characterized in that the reduction process is performed until the average particle diameter of the ruthenium after the reduction process has increased by at least 15% in relation to the average particle diameter of the ruthenium before the reduction process.Type: GrantFiled: October 1, 2020Date of Patent: April 23, 2024Assignees: Tokyo Institute of Technology, Tsubame BHB Co., Ltd.Inventors: Hideo Hosono, Masaaki Kitano, Toshiharu Yokoyama, Jiang Li, Shigeki Kawamura, Kazuhisa Kishida
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Patent number: 11946151Abstract: An electrolytic cell capable of simply electrolyzing carbon dioxide into carbon monoxide and oxygen with low activation energy, and an electrolytic device. The carbon dioxide electrolytic cell includes a cathode, an anode, and a solid electrolyte having oxide ion conductivity. The cathode is the following (A) or (B); (A) a metal and a first mayenite-type compound are included therein or (B) a metal and a second mayenite-type compound are included therein, said second mayenite type compound including a mayenite type compound having electron conductivity.Type: GrantFiled: March 28, 2019Date of Patent: April 2, 2024Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Hideo Hosono, Toshiharu Yokoyama, Yoshitake Toda, Shintaro Ishiyama, Masami Taguchi, Hiroki Takahashi
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Patent number: 11819827Abstract: Provided are a supported metal material showing high catalytic activity, a supported metal catalyst, a method of producing ammonia and a method of producing hydrogen using the supported metal catalyst, and a method of producing a cyanamide compound. The supported metal material of the present invention is a supported metal material in which a transition metal is supported on a support, and the support is a cyanamide compound represented by the following general formula (1): MCN2 (1), wherein M represents a group II element of the periodic table, and the specific surface area of the cyanamide compound is 1 m2 g?1 or more.Type: GrantFiled: March 16, 2018Date of Patent: November 21, 2023Assignees: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGYInventors: Hideo Hosono, Kazuhisa Kishida, Masaaki Kitano, Toshiharu Yokoyama
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Publication number: 20230241593Abstract: The present invention is related to an oxynitride-hydride which is capable of achieving both stabilization and improvement of catalyst performance when used as a support, and the oxynitride-hydride can be easily synthesized. The oxynitride-hydride is represented by the following general formula (1), AnBmOl-xNyHz??(1) wherein in the general formula (1), x represents a number represented by 0.1?x?3.5; y represents a number represented by 0.1?y?2.0; and z represents a number represented by 0.1?z?2.0.Type: ApplicationFiled: February 16, 2021Publication date: August 3, 2023Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Masaaki KITANO, Hideo HOSONO, Toshiharu YOKOYAMA, Jun KUJIRAI, Kiya OGASAWARA
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Publication number: 20230083938Abstract: The invention is related to a layered double hydroxide electride which can be produced without high-temperature treatment, and a production method of which cost can be reduced. The layered double hydroxide electride contains electrons between layers and has an electron density of 2.0×1018 cm?3 or more. The method of producing the layered double hydroxide electride includes a step of mixing a starting layered double hydroxide with an electron exchanger for exchanging anions existing between layers of the starting layered double hydroxide for electrons to produce the layered double hydroxide electride.Type: ApplicationFiled: February 15, 2021Publication date: March 16, 2023Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Masaaki KITANO, Hideo HOSONO, Toshiharu YOKOYAMA, Kiya OGASAWARA, Yo AGAWA
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Intermetallic compound, hydrogen storage/release material, catalyst and method for producing ammonia
Patent number: 11433378Abstract: Provided are an intermetallic compound having high stability and high activity, and a catalyst using the same. A hydrogen storage/release material containing an intermetallic compound represented by formula (1): RTX . . . (1) wherein R represents a lanthanoid element, T represents a transition metal in period 4 or period 5 in the periodic table, and X represents Si, Al or Ge.Type: GrantFiled: July 12, 2018Date of Patent: September 6, 2022Assignees: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGYInventors: Hideo Hosono, Yutong Gong, Jiazhen Wu, Masaaki Kitano, Toshiharu Yokoyama, Yangfan Lu, Tiannan Ye -
Publication number: 20220241754Abstract: The invention provides a method of producing a metal oxyhydride, capable of synthesizing the metal oxyhydride under reaction conditions close to atmospheric pressure, and excellent in productivity and cost. The method of producing a metal oxyhydride of the present invention includes reacting an oxide with a metal hydride in a hydrogen atmosphere. A non-oxygen element constituting the oxide comprises only one kind of non-oxygen element. A pressure condition of the reaction is 0.1 to 0.9 MPa, and a temperature of the reaction is 500 to 1000° C.Type: ApplicationFiled: July 1, 2020Publication date: August 4, 2022Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Masaaki KITANO, Hideo HOSONO, Toshiharu YOKOYAMA, Kayato OOYA, Kiya OGASAWARA, Ryu TAKASHIMA
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Publication number: 20220143580Abstract: A molded sintered body containing a mayenite type compound, an inorganic binder sintered material, and a transition metal, wherein a content of the inorganic binder sintered material is 3 to 30 parts by mass with respect to 100 parts by mass of the molded sintered body, and the molded sintered body has at least one pore peak in each of a pore diameter range of 2.5 to 20 nm and a pore diameter range of 20 to 350 nm. A method for producing the molded sintered body, including mixing a precursor of a mayenite type compound and a raw material of an inorganic binder sintered material to prepare a mixture; molding the mixture to prepare a molded body of the mixture; firing the molded body to prepare a fired product; and supporting a transition metal on the fired product to produce a molded sintered body.Type: ApplicationFiled: February 26, 2020Publication date: May 12, 2022Applicants: Tsubame BHB Co., Ltd., Tokyo Institute of TechnologyInventors: Yasunori INOUE, Munenobu ITO, Kazuhisa KISHIDA, Hideo HOSONO, Masaaki KITANO, Toshiharu YOKOYAMA
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Publication number: 20220107971Abstract: An information processing apparatus includes: a processor configured to: acquire a message for another person that a requester has input when requesting the other person to register a document in a specific storage location of a storage device; if the other person registers the document, which the requester has requested to register, in the storage location, associate at least one element of the message with the registered document; and upon receiving a search for a document with a search term from the requester, search for and output a document associated with an element, including the search term, of the at least one element of the message.Type: ApplicationFiled: May 12, 2021Publication date: April 7, 2022Applicant: FUJIFILM BUSINESS INNOVATION CORP.Inventor: Toshiharu YOKOYAMA
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Patent number: 11267720Abstract: Provided is a manufacturing method with which it is possible to convert a mayenite-type compound to an electride, wherein a reducing agent is not required, reaction conditions include a temperature that is lower than that in the related art, and the reaction is performed more quickly in a simple manner, and, additionally, by requiring a lower amount of energy. Provided is a method for manufacturing an electride of mayenite-type compounds, the method being characterized in that a mayenite-type compound is converted to an electride by making a current directly flow through the mayenite-type compound by applying a voltage to the mayenite-type compound in a heating state.Type: GrantFiled: July 25, 2017Date of Patent: March 8, 2022Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Hideo Hosono, Toshiharu Yokoyama, Yoshitake Toda, Shintaro Ishiyama
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Publication number: 20220048782Abstract: The invention provides a perovskite-type oxynitride hydride which can be easily synthesized by achieving both improvement in catalytic performance and stabilization when used as a support of a catalyst. The oxynitride hydride is represented by general formula (1a) or (1b). ABO3-xNyHz??(1a) AB2O4-xNyHz??(1b) (In the above general formulas (1 a) and (1 b), A is at least one selected from the group consisting of Ba and Sr; B is at least one selected from the group consisting of Ce, La and Y; x represents a number represented by 0.2?x?2.0; y represents a number represented by 0.1?y?1.0; and z represents a number represented by 0.1?z?1.0.Type: ApplicationFiled: February 26, 2020Publication date: February 17, 2022Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Masaaki KITANO, Hideo HOSONO, Toshiharu YOKOYAMA, Jun KUJIRAI
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Patent number: 11235310Abstract: Provided is a method for manufacturing a catalyst with which it is possible to obtain a supported metal ammonia synthesis catalyst, in which there are restrictions in terms of producing method and producing facility, and particularly large restrictions for industrial-scale producing, in a more simple manner and so that the obtained catalyst has a high activity. This method for manufacturing an ammonia synthesis catalyst includes: a first step for preparing 12CaO.7Al2O3 having a specific surface area of 5 m2/g or above; a second step for supporting a ruthenium compound on the 12CaO.7Al2O3; and a third step for performing a reduction process on the 12CaO.7Al2O3 supporting the ruthenium compound, obtained in the second step. This invention is characterized in that the reduction process is performed until the average particle diameter of the ruthenium after the reduction process has increased by at least 15% in relation to the average particle diameter of the ruthenium before the reduction process.Type: GrantFiled: August 8, 2017Date of Patent: February 1, 2022Assignees: Tokyo Institute of Technology, Tsubame BHB Co., Ltd.Inventors: Hideo Hosono, Masaaki Kitano, Toshiharu Yokoyama, Jiang Li, Shigeki Kawamura, Kazuhisa Kishida
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Patent number: 11178231Abstract: An information processing apparatus includes a storage controller and a display controller. The storage controller performs control when storing of data is accepted from an unregistered user yet to be registered in advance. The control is performed to store the accepted data in association with identification information that enables the unregistered user to be discriminated from a different unregistered user. The display controller performs control when the unregistered user performs access to the information processing apparatus. The control is performed to switch data to be displayed to the unregistered user performing the access. The data is switched by using the identification information.Type: GrantFiled: April 17, 2019Date of Patent: November 16, 2021Assignee: FUJIFILM Business Innovation Corp.Inventor: Toshiharu Yokoyama
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Publication number: 20210284544Abstract: Provided is a manufacturing method with which it is possible to convert a mayenite-type compound to an electride, wherein a reducing agent is not required, reaction conditions include a temperature that is lower than that in the related art, and the reaction is performed more quickly in a simple manner, and, additionally, by requiring a lower amount of energy. Provided is a method for manufacturing an electride of mayenite-type compounds, the method being characterized in that a mayenite-type compound is converted to an electride by making a current directly flow through the mayenite-type compound by applying a voltage to the mayenite-type compound in a heating state.Type: ApplicationFiled: July 25, 2017Publication date: September 16, 2021Inventors: Hideo HOSONO, Toshiharu YOKOYAMA, Yoshitake TODA, Shintaro ISHIYAMA
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Patent number: 10941427Abstract: A production system for a product selected from a nitrogen-containing product and a fermented and cultured product that does not involve (or can minimize) the transport of liquid ammonia can include: an ammonia synthesis apparatus in which an ammonia-containing gas is synthesized by reaction of a source gas containing hydrogen and nitrogen in the presence of a supported metal catalyst containing as a support one or more selected from the group consisting of: i) a conductive mayenite compound; ii) a two-dimensional electride compound or a precursor thereof; and iii) a complex formed of a support base containing at least one metal oxide selected from ZrO2, TiO2, CeO2, and MgO and a metal amide represented by a formula M(NH2)x (where M represents one or more selected from Li, Na, K, Be, Mg, Ca, Sr, Ba, and Eu; and x represents a valence number of M) supported by the support base.Type: GrantFiled: August 11, 2017Date of Patent: March 9, 2021Assignees: Ajinomoto Co., Inc., Tokyo Institute of TechnologyInventors: Mitsuhiro Kishino, Hiroyuki Kojima, Hideo Hosono, Michikazu Hara, Masaaki Kitano, Toshiharu Yokoyama, Toru Numaguchi, Munenobu Ito, Kazuteru Yamada, Hiromi Noguchi
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Publication number: 20210025063Abstract: An electrolytic cell capable of simply electrolyzing carbon dioxide into carbon monoxide and oxygen with low activation energy, and an electrolytic device. The carbon dioxide electrolytic cell includes a cathode, an anode, and a solid electrolyte having oxide ion conductivity. The cathode is the following (A) or (B); (A) a metal and a first mayenite-type compound are included therein or (B) a metal and a second mayenite-type compound are included therein, said second mayenite type compound including a mayenite type compound having electron conductivity.Type: ApplicationFiled: March 28, 2019Publication date: January 28, 2021Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Hideo HOSONO, Toshiharu YOKOYAMA, Yoshitake TODA, Shintaro ISHIYAMA, Masami TAGUCHI, Hiroki TAKAHASHI
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Publication number: 20210016254Abstract: Provided is a method for manufacturing a catalyst with which it is possible to obtain a supported metal ammonia synthesis catalyst, in which there are restrictions in terms of producing method and producing facility, and particularly large restrictions for industrial-scale producing, in a more simple manner and so that the obtained catalyst has a high activity. This method for manufacturing an ammonia synthesis catalyst includes: a first step for preparing 12CaO.7Al2O3 having a specific surface area of 5 m2/g or above; a second step for supporting a ruthenium compound on the 12CaO.7Al2O3; and a third step for performing a reduction process on the 12CaO.7Al2O3 supporting the ruthenium compound, obtained in the second step. This invention is characterized in that the reduction process is performed until the average particle diameter of the ruthenium after the reduction process has increased by at least 15% in relation to the average particle diameter of the ruthenium before the reduction process.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Applicants: Tokyo Institute of Technology, Tsubame BHB Co., Ltd.Inventors: Hideo Hosono, Masaaki Kitano, Toshiharu Yokoyama, Jiang Li, Shigeki Kawamura, Kazuhisa Kishida
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Publication number: 20200407762Abstract: Provided is a novel production system that does not involve, or can minimize, the transport of liquid ammonia in the production of an organic compound or the production of a microorganism by microbial fermentation. A production system for an organic compound or a microorganism includes: an ammonia synthesis apparatus in which an ammonia-containing gas is synthesized by reaction of a source gas containing hydrogen and nitrogen in the presence of a supported ruthenium catalyst; and a culture apparatus that cultures a microorganism having organic compound productivity using ammonia originating from the ammonia-containing gas obtained by using the ammonia synthesis apparatus.Type: ApplicationFiled: September 14, 2020Publication date: December 31, 2020Applicants: AJINOMOTO CO., INC., TOKYO INSTITUTE OF TECHNOLOGYInventors: Mitsuhiro Kishino, Hiroyuki Kojima, Hideo Hosono, Michikazu Hara, Masaaki Kitano, Toshiharu Yokoyama, Toru Numaguchi, Munenobu Ito, Kazuteru Yamada, Hiromi Noguchi
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Patent number: 10846414Abstract: An information processing system grants an access right to data to a registered user, and includes a receiving unit and a granting unit. The receiving unit receives information on an unregistered user who is to be granted with an access right to specific data. The granting unit grants the access right to the specific data to the unregistered user after the unregistered user has been registered.Type: GrantFiled: February 24, 2017Date of Patent: November 24, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Yasuhiro Ito, Kiyoshi Tashiro, Toshiharu Yokoyama, Tomoyuki Shimizu, Ken Ichikawa
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Patent number: 10808267Abstract: Provided is a novel production system that does not involve, or can minimize, the transport of liquid ammonia in the production of an organic compound or the production of a microorganism by microbial fermentation. A production system for an organic compound or a microorganism includes: an ammonia synthesis apparatus in which an ammonia-containing gas is synthesized by reaction of a source gas containing hydrogen and nitrogen in the presence of a supported ruthenium catalyst; and a culture apparatus that cultures a microorganism having organic compound productivity using ammonia originating from the ammonia-containing gas obtained by using the ammonia synthesis apparatus.Type: GrantFiled: August 11, 2017Date of Patent: October 20, 2020Assignees: Ajinomoto Co., Inc., Tokyo Institute of TechnologyInventors: Mitsuhiro Kishino, Hiroyuki Kojima, Hideo Hosono, Michikazu Hara, Masaaki Kitano, Toshiharu Yokoyama, Toru Numaguchi, Munenobu Ito, Kazuteru Yamada, Hiromi Noguchi