Patents by Inventor Hidemi Kato

Hidemi Kato 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: 11377358
    Abstract: A novel method for producing a porous carbon material which makes it possible to easily produce a porous carbon material having a desired shape. The method includes immersing a carbon-containing material having a desired shape and composed of a compound, alloy or non-equilibrium alloy containing carbon in a metal bath, the metal bath having a solidification point that is lower than a melting point of the carbon-containing material, the metal bath being controlled to a lower temperature than a minimum value of a liquidus temperature within a compositional fluctuation range extending from the carbon-containing material to carbon by decreasing the other non-carbon main components, to thereby selectively elute the other non-carbon main components into the metal bath while maintaining an external shape of the carbon-containing material to give a porous carbon material having microvoids.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: July 5, 2022
    Assignees: TOHOKU TECHNO ARCH CO., LTD., TPR CO., LTD.
    Inventors: Hidemi Kato, Masashi Tsuda, Yugo Takano, Yosuke Suzuki, Tsutomu Chino, Koji Kamata, Shota Muronaka
  • Publication number: 20220205312
    Abstract: A glass unit according to the present invention includes a first glass plate, a second glass plate that is arranged facing the first glass plate with a predetermined interval therebetween and forms an internal space with the first glass plate, a sealing member that seals a gap at peripheral edges of the first glass plate and the second glass plate, and a plurality of spacers arranged between the first glass plate and the second glass plate. The internal space has been depressurized to a vacuum state, or a predetermined gas has been injected into the internal space. The first and second glass plates each have a thickness of 5 mm or less, the pitch of the spacers is 15 mm or more, and the difference between the height of the highest spacer and the height of the lowest spacer is 0.01 mm or less.
    Type: Application
    Filed: April 10, 2020
    Publication date: June 30, 2022
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Tatsuhiro NAKAZAWA, Hidemi KATO
  • Publication number: 20220127901
    Abstract: A glass unit according to the present invention includes a first glass plate, a second glass plate that is arranged facing the first glass plate with a predetermined interval therebetween and forms an internal space with the first glass plate, a sealing member that seals a gap at peripheral edges of the first glass plate and the second glass plate, and a plurality of spacers arranged between the first glass plate and the second glass plate. The internal space has been depressurized to a vacuum state, the first and second glass plates each have a thickness of 5.0 mm or less, and expressions (1) and (2) below are satisfied for a cross-sectional area S (mm2) of the spacers: (1) R?(800/?)*S+13, and (2) 25*10?4??S?400*10?4?, where R is the distance to a spacer closest to a certain spacer.
    Type: Application
    Filed: February 6, 2020
    Publication date: April 28, 2022
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Tatsuhiro NAKAZAWA, Hidemi KATO
  • Publication number: 20210396663
    Abstract: An electricity measuring type surface plasmon resonance sensor includes: a plasmon resonance intensifying sensor chip in which a prism and a sensor chip including an electrode, a silicon semiconductor film, and a plasmon resonance film electrode arranged in this order are arranged in an order of the prism, the electrode, the silicon semiconductor film, and the plasmon resonance film electrode; and an electric measuring apparatus which directly measures a current or voltage from the electrode and the plasmon resonance film electrode.
    Type: Application
    Filed: October 16, 2020
    Publication date: December 23, 2021
    Applicant: IMRA JAPAN KABUSHIKIKAISHA
    Inventors: Amrita SANA, Giles ALLISON, Hironori SUZUKI, Hidemi KATO, Masao ANDO, Viet Cuong LE
  • Patent number: 11180374
    Abstract: A novel method for producing a porous carbon material which makes it possible to easily produce a porous carbon material having a desired shape; and a spherical porous carbon material are provided. The method includes immersing a carbon-containing material having a desired shape and composed of a compound, alloy or non-equilibrium alloy containing carbon in a metal bath, the metal bath having a solidification point that is lower than a melting point of the carbon-containing material, the metal bath being controlled to a lower temperature than a minimum value of a liquidus temperature within a compositional fluctuation range extending from the carbon-containing material to carbon by decreasing the other non-carbon main components, to thereby selectively elute the other non-carbon main components into the metal bath while maintaining an external shape of the carbon-containing material to give a porous carbon material having microvoids.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 23, 2021
    Assignee: TOHOKU TECHNO ARCH CO., LTD.
    Inventors: Hidemi Kato, Masashi Tsuda, Yugo Takano, Yosuke Suzuki, Tsutomu Chino, Koji Kamata, Shota Muronaka
  • Patent number: 11180857
    Abstract: A method for producing a porous member, whereby a member having smaller microgaps can be produced, and additionally, the outermost surface alone can be made porous and a porous layer can be formed on the surface while maintaining the characteristics of portions in which no porous layer is formed, is provided.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: November 23, 2021
    Assignees: TOHOKU TECHNO ARCH CO., LTD., TPR CO., LTD.
    Inventors: Takeshi Wada, Hidemi Kato
  • Patent number: 10968505
    Abstract: A process for producing a molded material that can form metallic glass material in a state of lower viscosity, and can manufacture a small structure of several 10 ?m or less in a comparatively short time while precisely controlling shape thereof, by the process comprising a heating step of heating supercooled state metallic glass material or a solid metallic glass material at a temperature increase rate of 0.5 K/s to a temperature at or higher than a temperature at which a crystallization process for a supercooled liquid of the metallic glass material begins, and a molding step of transfer molding the metallic glass material until the crystallization process for the supercooled liquid of the metallic glass material has been completed. In addition, the purpose is also to provide the molded material that has been formed by this process, a wavefront control element, and a diffraction grating.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 6, 2021
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hidemi Kato, Wataru Yashiro
  • Patent number: 10763511
    Abstract: A method for producing porous graphite capable of realizing higher durability, output and capacity, and porous graphite. A carbon member having microvoids is obtained by a dealloying step for selectively eluting other non-carbon main components into a metal bath by immersing a carbon-containing material, composed of a compound including carbon or an alloy or non-equilibrium alloy, in the metal bath, wherein the metal bath has a solidifying point lower than the melting point of the carbon-containing material, and is controlled to a temperature lower than the minimum value of a liquidus temperature within a composition fluctuation range extending from the carbon-containing material to carbon by reducing the other non-carbon main components. The carbon member obtained in the dealloying step is graphitized by heating in a graphitization step. The carbon member graphitized in the graphitization step is subjected to activation treatment by an activation step.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: September 1, 2020
    Assignees: TOHOKU TECHNO ARCH CO., LTD., TPR CO., LTD.
    Inventors: Hidemi Kato, Seung-Geun Yu, Takeshi Wada
  • Publication number: 20200248284
    Abstract: A porous metal having a much smaller ligament size is provided. The porous metal includes a crystal of an alloy, the alloy containing n or more kinds of elements, n being an integer of 3 or more, the alloy having a composition of each element of from {(100/n)?(75/n)) at % to {(100/n)+(75/n)} at %, and the porous metal having a ligament size of 220 nm or less. The alloy is preferably a high entropy alloy or a medium entropy alloy. In addition, the alloy preferably contains a solid solution of the respective elements.
    Type: Application
    Filed: October 7, 2019
    Publication date: August 6, 2020
    Applicants: TPR CO., LTD., TOHOKU TECHNO ARCH CO., LTD.
    Inventors: Hidemi KATO, Soo-hyun JOO
  • Publication number: 20200198979
    Abstract: A novel method for producing a porous carbon material which makes it possible to easily produce a porous carbon material having a desired shape. The method includes immersing a carbon-containing material having a desired shape and composed of a compound, alloy or non-equilibrium alloy containing carbon in a metal bath, the metal bath having a solidification point that is lower than a melting point of the carbon-containing material, the metal bath being controlled to a lower temperature than a minimum value of a liquidus temperature within a compositional fluctuation range extending from the carbon-containing material to carbon by decreasing the other non-carbon main components, to thereby selectively elute the other non-carbon main components into the metal bath while maintaining an external shape of the carbon-containing material to give a porous carbon material having microvoids.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Applicants: TOHOKU TECHNO ARCH CO., LTD., TPR INDUSTRY CO., LTD
    Inventors: Hidemi KATO, Masashi TSUDA, Yugo TAKANO, Yosuke SUZUKI, Tsutomu CHINO, Koji KAMATA, Shota MURONAKA
  • Patent number: 10403900
    Abstract: A method for producing porous graphite capable of realizing higher durability, output and capacity, and porous graphite. A carbon member having microvoids is obtained by a dealloying step for selectively eluting other non-carbon main components into a metal bath by immersing a carbon-containing material, composed of a compound including carbon or an alloy or non-equilibrium alloy, in the metal bath, wherein the metal bath has a solidifying point lower than the melting point of the carbon-containing material, and is controlled to a temperature lower than the minimum value of a liquidus temperature within a composition fluctuation range extending from the carbon-containing material to carbon by reducing the other non-carbon main components. The carbon member obtained in the dealloying step is graphitized by heating in a graphitization step. The carbon member graphitized in the graphitization step is subjected to activation treatment by an activation step.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: September 3, 2019
    Assignees: TOHOKU TECHNO ARCH CO., LTD., TPR INDUSTRY CO., LTD
    Inventors: Hidemi Kato, Seung-Geun Yu, Takeshi Wada
  • Publication number: 20190093238
    Abstract: A method for producing a porous member, whereby a member having smaller microgaps can be produced, and additionally, the outermost surface alone can be made porous and a porous layer can be formed on the surface while maintaining the characteristics of portions in which no porous layer is formed, is provided.
    Type: Application
    Filed: January 16, 2017
    Publication date: March 28, 2019
    Applicants: TOHOKU TECHNO ARCH CO., LTD., TPR INDUSTRY CO., LTD.
    Inventors: Takeshi WADA, Hidemi KATO
  • Publication number: 20190084834
    Abstract: A novel method for producing a porous carbon material which makes it possible to easily produce a porous carbon material having a desired shape; and a spherical porous carbon material are provided. The method includes immersing a carbon-containing material having a desired shape and composed of a compound, alloy or non-equilibrium alloy containing carbon in a metal bath, the metal bath having a solidification point that is lower than a melting point of the carbon-containing material, the metal bath being controlled to a lower temperature than a minimum value of a liquidus temperature within a compositional fluctuation range extending from the carbon-containing material to carbon by decreasing the other non-carbon main components, to thereby selectively elute the other non-carbon main components into the metal bath while maintaining an external shape of the carbon-containing material to give a porous carbon material having microvoids.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 21, 2019
    Applicants: TOHOKU TECHNO ARCH CO., LTD., TPR INDUSTRY CO., LTD.
    Inventors: Hidemi KATO, Masashi TSUDA, Yugo TAKANO, Yosuke SUZUKI, Tsutomu CHINO, Koji KAMATA, Shota MURONAKA
  • Publication number: 20190062872
    Abstract: A method for producing a carbon composite material to reduce costs; and a carbon composite material includes a dealloying step of immersing a carbon-containing material composed of a compound, alloy or non-equilibrium alloy containing carbon in a metal bath, the metal bath having a solidification point lower than a melting point of the carbon-containing material, the metal bath being controlled to a lower temperature than a minimum value of a liquidus temperature within a compositional fluctuation range extending from the carbon-containing material to carbon by decreasing other non-carbon main components, to thereby selectively elute the other non-carbon main components into the metal bath to form a carbon member having microvoids; and a cooling step performed with the microvoids of the carbon member including a component of the metal bath to solidify the component. The carbon composite material combining carbon with the metal bath component that has solidified is thereby obtained.
    Type: Application
    Filed: December 7, 2016
    Publication date: February 28, 2019
    Applicants: Tohoku Techno Arch Co., Ltd., TPR Industry Co., Ltd.
    Inventors: Hidemi KATO, Masashi TSUDA, Yugo TAKANO, Yosuke SUZUKI, Tsutomu CHINO, Koji KAMATA, Shota MURONAKA
  • Publication number: 20190058197
    Abstract: A method for producing porous graphite capable of realizing higher durability, output and capacity, and porous graphite. A carbon member having microvoids is obtained by a dealloying step for selectively eluting other non-carbon main components into a metal bath by immersing a carbon-containing material, composed of a compound including carbon or an alloy or non-equilibrium alloy, in the metal bath, wherein the metal bath has a solidifying point lower than the melting point of the carbon-containing material, and is controlled to a temperature lower than the minimum value of a liquidus temperature within a composition fluctuation range extending from the carbon-containing material to carbon by reducing the other non-carbon main components. The carbon member obtained in the dealloying step is graphitized by heating in a graphitization step. The carbon member graphitized in the graphitization step is subjected to activation treatment by an activation step.
    Type: Application
    Filed: October 23, 2018
    Publication date: February 21, 2019
    Applicants: TOHOKU TECHNO ARCH CO., LTD., TPR INDUSTRY CO., LTD
    Inventors: Hidemi KATO, Seung-Geun YU, Takeshi WADA
  • Publication number: 20190047078
    Abstract: A method for producing a nano-composite metal member, by which a nano-composite metal member can be readily produced and the production cost can be reduced, and a method for joining phase-separated metal solids using the principle same as that of the former method are provided. A nano-composite metal member is obtained by bringing a solid metal body comprising a first component into contact with a solid metal material comprising a compound, an alloy or a non-equilibrium alloy that simultaneously contains a second component and a third component having a positive heat of mixing and a negative heat of mixing, respectively, relative to the first component, and then performing heat treatment at a predetermined temperature for a predetermined length of time, so as to cause interdiffusion between the first component and the third component.
    Type: Application
    Filed: January 16, 2017
    Publication date: February 14, 2019
    Applicants: TOHOKU TECHNO ARCH CO., LTD., TPR INDUSTRY CO., LTD
    Inventors: Takeshi WADA, Hidemi KATO
  • Publication number: 20180187294
    Abstract: A process for producing a molded material that can form metallic glass material in a state of lower viscosity, and can manufacture a small structure of several 10 ?m or less in a comparatively short time while precisely controlling shape thereof, by the process comprising a heating step of heating supercooled state metallic glass material or a solid metallic glass material at a temperature increase rate of 0.5 K/s to a temperature at or higher than a temperature at which a crystallization process for a supercooled liquid of the metallic glass material begins, and a molding step of transfer molding the metallic glass material until the crystallization process for the supercooled liquid of the metallic glass material has been completed. In addition, the purpose is also to provide the molded material that has been formed by this process, a wavefront control element, and a diffraction grating.
    Type: Application
    Filed: June 17, 2016
    Publication date: July 5, 2018
    Applicant: TOHOKU UNIVERSITY
    Inventors: Hidemi KATO, Wataru YASHIRO
  • Publication number: 20170225955
    Abstract: A method for producing porous graphite capable of realizing higher durability, output and capacity, and porous graphite. A carbon member having microvoids is obtained by a dealloying step for selectively eluting other non-carbon main components into a metal bath by immersing a carbon-containing material, composed of a compound including carbon or an alloy or non-equilibrium alloy, in the metal bath, wherein the metal bath has a solidifying point lower than the melting point of the carbon-containing material, and is controlled to a temperature lower than the minimum value of a liquidus temperature within a composition fluctuation range extending from the carbon-containing material to carbon by reducing the other non-carbon main components. The carbon member obtained in the dealloying step is graphitized by heating in a graphitization step. The carbon member graphitized in the graphitization step is subjected to activation treatment by an activation step.
    Type: Application
    Filed: September 4, 2015
    Publication date: August 10, 2017
    Applicants: TOHOKU TECHNO ARCH CO., LTD., TPR INDUSTRY CO., LTD.
    Inventors: Hidemi KATO, Seung-Geun YU, Takeshi WADA
  • Patent number: 9279186
    Abstract: A metallic material containing both a second constituent and a third constituent having positive and negative heats of mixing relative to a first constituent, respectively, and including a compound, an alloy or a nonequilibrium alloy having a melting point that is higher than the solidifying point of a metal bath made of the first constituent is placed in the metal bath. The metal bath is controlled to a temperature lower than a minimum value of a liquidus temperature within a range of compositional variations in which the amount of the third constituent in the metallic material decreases down to a point where the metallic material becomes substantially the second constituent so that the third constituent is selectively dissolved into the metal bath.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: March 8, 2016
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hidemi Kato, Takeshi Wada, Kunio Yubuta, Akihisa Inoue
  • Publication number: 20150280246
    Abstract: The present invention makes it possible to efficiently utilize catalyst metal particles of a catalyst by fuel cell reaction. In a PFF structure in which a hydrophilic region is formed between the surface of a catalyst and an electrolyte, water is confined within the layer of the electrolyte, therefore by modifying the surface of a carrier by an acidic functional group, particularly by a sulfonic acid group, this acidic functional group is always in contact with the water, and thus protons are supplied therefrom into the water. Consequently, even in an environment, for example, in a micropore of the catalyst, into which the electrolyte cannot get, the protons from the acidic functional group are supplied to catalyst metal particles present at the peripheral surface of the micropore, and the catalyst metal particles contribute to fuel cell reaction.
    Type: Application
    Filed: October 16, 2013
    Publication date: October 1, 2015
    Applicant: KABUSHIKIKAISHA EQUOS RESEARCH
    Inventors: Hidemi Kato, Katsuhiko Saguchi, Nana Hayakawa