Patents by Inventor Hisao Ohnishi

Hisao Ohnishi 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: 12119526
    Abstract: A metal support for an electrochemical element has a plate shape as a whole, and is provided with a plurality of penetration spaces 1c that pass through the metal support from a front face 1a to a back face. The front face 1a is a face to be provided with an electrode layer. A region of the front face 1a provided with the penetration spaces is a hole region, and openings of the penetration spaces formed in the front face are front-side openings. An aperture ratio that is a ratio of the front-side openings to the hole region is 0.1% or more and 7.0% or less.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 15, 2024
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Kazuyuki Minami, Yuji Tsuda, Kyohei Manabe, Osamu Yamazaki
  • Patent number: 12110598
    Abstract: Provided is an alloy material including a metal oxide thin layer that can be formed using a simple method at low cost and can further suppress volatilization of Cr, which causes deterioration of a fuel cell, compared with a case where conventional expensive materials are used. Disclosed is a manufacturing method for an alloy material including a coating treatment step for coating a substrate made of a Fe—Cr based alloy with Co, and an oxidation treatment step for performing oxidation treatment on the substrate in a moisture-containing atmosphere after the coating treatment step.
    Type: Grant
    Filed: August 17, 2023
    Date of Patent: October 8, 2024
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Mitsuaki Echigo, Hisao Ohnishi
  • Publication number: 20240274837
    Abstract: A method for manufacturing a metal plate including a rolling step for rolling a metal material provided with a penetration space passing through the metal material in a thickness direction to reduce the thickness of the metal material and reduce the area of a surface opening formed in the surface of the metal material by the penetration space, thereby producing a plate-like metal plate.
    Type: Application
    Filed: April 26, 2024
    Publication date: August 15, 2024
    Inventors: Mitsuaki Echigo, Hisao Ohnishi
  • Publication number: 20240204228
    Abstract: Provided is a low-cost electrochemical element that has excellent performance, reliability, and durability. Also, provided is a manufacturing method for an electrochemical element including a metal substrate (metal support) and an electrode layer formed on/over the metal substrate. The method includes an electrode layer forming step of forming an electrode layer having a region with a surface roughness of 1.0 ?m or less on/over the metal substrate, and an electrolyte layer forming step of forming an electrolyte layer by spraying aerosolized metal oxide powder onto the electrode layer.
    Type: Application
    Filed: February 27, 2024
    Publication date: June 20, 2024
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Yuji Tsuda, Kyohei Manabe, Kazuyuki Minami
  • Patent number: 11978937
    Abstract: An electrochemical element (Q) has a metal substrate (1) and multiple electrochemical reaction portions. The metal substrate (1) has gas flow allowing regions that allow the flowing of a gas between the upper side (4) and the lower side (5) of the metal substrate (1). The electrochemical reaction portions each have at least an electrode layer (A), an electrolyte layer (B), and a counter electrode layer (C), and are arranged on the upper side (4) of the metal substrate (1). The electrolyte layer (B) is arranged between the electrode layer (A) and the counter electrode layer (C), and the gas flowing through the gas flow allowing regions is supplied to the electrode layer (A).
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 7, 2024
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Osamu Yamazaki
  • Patent number: 11967740
    Abstract: An electrochemical element including a plate-like support provided with an internal passage therein. The plate-like support includes a gas-permeable portion through which gas is permeable between the internal passage and the outside of the plate-like support and an electrochemical reaction portion that is formed by stacking at least a film-like electrode layer, a film-like electrolyte layer, and a film-like counter electrode layer in the stated order in a predetermined stacking direction on an outer face of the plate-like support so as to entirely or partially cover the gas-permeable portion. A first gas, that is one of reducing component gas and oxidative component gas, flows through the internal passage, and the internal passage is provided with a turbulence forming body that forms a turbulence state of the first gas.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: April 23, 2024
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Norihisa Shinke, Tadayuki Sogi, Kazuyuki Minami
  • Publication number: 20240047702
    Abstract: A substrate, with an electrode layer for a metal-supported electrochemical element of a solid oxide fuel cell or a solid oxide electrolytic cell, including a metal support, an electrode layer formed on/over the metal support, and an intermediate layer formed on/over the electrode layer, wherein the intermediate layer has a region with a surface roughness (Ra) of 1.0 ?m or less.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 8, 2024
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Yuji Tsuda, Kyohei Manabe, Kazuyuki Minami, Osamu Yamazaki
  • Publication number: 20230392249
    Abstract: Provided is an alloy material including a metal oxide thin layer that can be formed using a simple method at low cost and can further suppress volatilization of Cr, which causes deterioration of a fuel cell, compared with a case where conventional expensive materials are used. Disclosed is a manufacturing method for an alloy material including a coating treatment step for coating a substrate made of a Fe—Cr based alloy with Co, and an oxidation treatment step for performing oxidation treatment on the substrate in a moisture-containing atmosphere after the coating treatment step.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Inventors: Mitsuaki Echigo, Hisao Ohnishi
  • Patent number: 11767586
    Abstract: Provided is an alloy material including a metal oxide thin layer that can be formed using a simple method at low cost and can further suppress volatilization of Cr, which causes deterioration of a fuel cell, compared with a case where conventional expensive materials are used. Disclosed is a manufacturing method for an alloy material including a coating treatment step for coating a substrate made of a Fe—Cr based alloy with Co, and an oxidation treatment step for performing oxidation treatment on the substrate in a moisture-containing atmosphere after the coating treatment step.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: September 26, 2023
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Mitsuaki Echigo, Hisao Ohnishi
  • Publication number: 20230282844
    Abstract: The present invention includes metal materials 42a and 52a made of thermally expandable members that thermally expand, and insulating metal oxide layers 42b and 52b. The metal materials 42a and 52a and the metal oxide layers 42b and 52b formed in an annular shape have through holes 42c and 52c thereinside.
    Type: Application
    Filed: March 31, 2021
    Publication date: September 7, 2023
    Inventors: Norihisa Shinke, Mitsuaki Echigo, Kyohei Manabe, Hisao Ohnishi, Masakazu Yoda, Tadayuki Sogi, Akio Inaya
  • Patent number: 11749824
    Abstract: Provided are a metal plate configured such that sufficient strength and performance are ensured and the workability and cost of mass production are improved, and an electrochemical element and the like including the metal plate. A metal plate 1 includes a thick portion 110, and a thin portion 120 that is thinner than the thick portion 110. The thin portion 120 is provided with a penetration space 1c passing through the thin portion 120 in the thickness direction.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: September 5, 2023
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Mitsuaki Echigo, Hisao Ohnishi
  • Publication number: 20230234084
    Abstract: Provided is a film forming apparatus capable of stably supplying a large amount of ceramic raw material powder for a long time and forming a homogeneous and dense film. A film forming apparatus 1 for forming a film on a base material K includes an aerosol transport path 10 for ejecting an aerosol obtained by dispersing a ceramic raw material powder in a gas, from an ejection end 10a toward the base material K, in which a flow path cross-section at an ejection end 10a of the aerosol transport path 10 has a substantially circular shape with an area of 10 mm2 or more.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 27, 2023
    Inventors: Kyohei Manabe, Katsuki Higaki, Hisao Ohnishi, Mitsuaki Echigo, Tadayuki Sogi, Jun Akedo, Rintaro Aoyagi, Hiroaki Matsui, Kentaro Shinoda, Hiroki Tsuda
  • Patent number: 11677080
    Abstract: Provided is a low-cost electrochemical element that includes a high-performance electrode layer. The electrochemical element includes an electrode layer, and the electrode layer contains small particles and large particles. The small particles have a particle diameter of 200 nm or less in the electrode layer, and the large particles have a particle diameter of 500 nm or more in the electrode layer.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: June 13, 2023
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Kazuyuki Minami, Mitsuaki Echigo, Hisao Ohnishi, Yuji Tsuda, Kyohei Manabe, Osamu Yamazaki
  • Patent number: 11670779
    Abstract: A metal support for an electrochemical element has a plate shape as a whole, and is provided with a plurality of penetration spaces that pass through the metal support from a front face to a back face. The front face is a face to be provided with an electrode layer. Each of front-side openings that are openings of the penetration spaces formed in the front face has an area of 3.0×10?4 mm2 or more and 3.0×10?3 mm2 or less.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: June 6, 2023
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Kazuyuki Minami, Yuji Tsuda, Kyohei Manabe, Osamu Yamazaki
  • Publication number: 20230160079
    Abstract: -- An electrolysis cell unit capable of efficiently electrolyzing water and carbon dioxide is obtained. An electrolysis cell unit includes at least an electrolysis cell in which an electrode layer and a counter electrode layer are formed with an electrolyte layer interposed therebetween and a discharge path for discharging hydrogen generated in the electrode layer, in which the electrolysis cell being formed in a thin layer on a support and a reverse water-gas shift reaction unit that generates carbon monoxide using carbon dioxide and the hydrogen by a reverse water-gas shift reaction being provided in at least a portion of the discharge path.
    Type: Application
    Filed: March 31, 2021
    Publication date: May 25, 2023
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Yuji Tsuda
  • Publication number: 20230149889
    Abstract: A hydrocarbon production system capable of efficiently producing hydrocarbon containing a high-calorie gas by securing hydrogen and carbon monoxide required for hydrocarbon synthesis using water and carbon dioxide as raw materials is obtained. The hydrocarbon production system includes an electrolytic reaction unit that converts water and carbon dioxide into hydrogen and carbon monoxide through an electrolytic reaction, a catalytic reaction unit that converts a product generated by the electrolytic reaction unit into hydrocarbon through a catalytic reaction, and branch paths and that branch a portion of an outlet component of the catalytic reaction unit.
    Type: Application
    Filed: March 31, 2021
    Publication date: May 18, 2023
    Inventors: Mitsuaki Echigo, Hisao Ohnishi
  • Publication number: 20230147978
    Abstract: Provided is a low-cost electrochemical element that has excellent performance, reliability, and durability. Also, provided is a manufacturing method for an electrochemical element including a metal substrate (metal support) and an electrode layer formed on/over the metal substrate. The method includes an electrode layer forming step of forming an electrode layer having a region with a surface roughness of 1.0 ?m or less on/over the metal substrate, and an electrolyte layer forming step of forming an electrolyte layer by spraying aerosolized metal oxide powder onto the electrode layer.
    Type: Application
    Filed: January 11, 2023
    Publication date: May 11, 2023
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Yuji Tsuda, Kyohei Manabe, Kazuyuki Minami
  • Publication number: 20230110742
    Abstract: In a metal support mostly used for a metal-supported solid oxide fuel cell (SOFC), a SOFC system that improves the power generation efficiency by allowing a gas to smoothly flow into or flow out from the through-holes is achieved. A metal support is formed in a plate shape as a whole and has a plurality of through-holes penetrating from a front surface on which an electrode layer is provided to a back surface, and the metal support has inclined through-holes, as the through-holes each of which has a central axis inclined with respect to a thickness direction.
    Type: Application
    Filed: March 31, 2021
    Publication date: April 13, 2023
    Inventors: Mitsuaki Echigo, Yuji Tsuda, Hisao Ohnishi
  • Publication number: 20230114967
    Abstract: As a hydrocarbon production system that synthesizes hydrocarbons using water and carbon dioxide as raw materials, a hydrocarbon production system capable of producing hydrocarbons by securing hydrogen and carbon monoxide required for hydrocarbon synthesis is provided. In a hydrocarbon production system that produces hydrocarbons from at least water and carbon dioxide, the hydrocarbon production system includes at least an electrolytic reaction unit, a reverse water-gas shift reaction unit, and a hydrocarbon synthesis reaction unit.
    Type: Application
    Filed: March 31, 2021
    Publication date: April 13, 2023
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Yuji Tsuda
  • Publication number: 20220190359
    Abstract: An electrochemical element including a plate-like support provided with an internal passage therein. The plate-like support includes a gas-permeable portion through which gas is permeable between the internal passage and the outside of the plate-like support and an electrochemical reaction portion that is formed by stacking at least a film-like electrode layer, a film-like electrolyte layer, and a film-like counter electrode layer in the stated order in a predetermined stacking direction on an outer face of the plate-like support so as to entirely or partially cover the gas-permeable portion. A first gas, that is one of reducing component gas and oxidative component gas, flows through the internal passage, and the internal passage is provided with a turbulence forming body that forms a turbulence state of the first gas.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 16, 2022
    Inventors: Mitsuaki Echigo, Hisao Ohnishi, Norihisa Shinke, Tadayuki Sogi, Kazuyuki Minami