Patents by Inventor Katsuya Akiyama

Katsuya Akiyama 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: 11921426
    Abstract: A substrate processing method includes a preprocessing forming step of forming a preprocessing film on a surface of a substrate having the surface on which a first region and a second region in which different substances are exposed are present, a preprocessing film separating step of separating the preprocessing film from the surface of the substrate with a stripping liquid, a processing film forming step of forming a processing film on the surface of the substrate after the preprocessing film separating step, and a processing film separating step of separating the processing film from the surface of the substrate with the stripping liquid.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: March 5, 2024
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Katsuya Akiyama, Yukifumi Yoshida, Song Zhang
  • Patent number: 11872605
    Abstract: The substrate processing method includes a hydrophilization step of hydrophilizing a surface of a substrate, a processing liquid supplying step of supplying a processing liquid to the hydrophilized surface of the substrate, a processing film forming step in which the processing liquid supplied to the surface of the substrate is solidified or cured to form a processing film on the surface of the substrate, and a peeling step in which a peeling liquid is supplied to the surface of the substrate to peel the processing film from the surface of the substrate. The peeling step includes a penetrating hole forming step in which the processing film is partially dissolved in the peeling liquid to form a penetrating hole in the processing film.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: January 16, 2024
    Inventors: Katsuya Akiyama, Yukifumi Yoshida
  • Publication number: 20230113052
    Abstract: The substrate processing method includes a hydrophilization step of hydrophilizing a surface of a substrate, a processing liquid supplying step of supplying a processing liquid to the hydrophilized surface of the substrate, a processing film forming step in which the processing liquid supplied to the surface of the substrate is solidified or cured to form a processing film on the surface of the substrate, and a peeling step in which a peeling liquid is supplied to the surface of the substrate to peel the processing film from the surface of the substrate. The peeling step includes a penetrating hole forming step in which the processing film is partially dissolved in the peeling liquid to form a penetrating hole in the processing film.
    Type: Application
    Filed: November 3, 2022
    Publication date: April 13, 2023
    Inventors: Katsuya AKIYAMA, Yukifumi YOSHIDA
  • Publication number: 20230098367
    Abstract: A substrate processing method includes a preprocessing forming step of forming a preprocessing film on a surface of a substrate having the surface on which a first region and a second region in which different substances are exposed are present, a preprocessing film separating step of separating the preprocessing film from the surface of the substrate with a stripping liquid, a processing film forming step of forming a processing film on the surface of the substrate after the preprocessing film separating step, and a processing film separating step of separating the processing film from the surface of the substrate with the stripping liquid.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 30, 2023
    Applicant: SCREEN Holdings Co., Ltd.
    Inventors: Katsuya AKIYAMA, Yukifumi YOSHIDA, Song ZHANG
  • Patent number: 11543752
    Abstract: A substrate processing method includes a preprocessing forming step of forming a preprocessing film on a surface of a substrate having the surface on which a first region and a second region in which different substances are exposed are present, a preprocessing film separating step of separating the preprocessing film from the surface of the substrate with a stripping liquid, a processing film forming step of forming a processing film on the surface of the substrate after the preprocessing film separating step, and a processing film separating step of separating the processing film from the surface of the substrate with the stripping liquid.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: January 3, 2023
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Katsuya Akiyama, Yukifumi Yoshida, Song Zhang
  • Patent number: 11517941
    Abstract: The substrate processing method includes a hydrophilization step of hydrophilizing a surface of a substrate, a processing liquid supplying step of supplying a processing liquid to the hydrophilized surface of the substrate, a processing film forming step in which the processing liquid supplied to the surface of the substrate is solidified or cured to form a processing film on the surface of the substrate, and a peeling step in which a peeling liquid is supplied to the surface of the substrate to peel the processing film from the surface of the substrate. The peeling step includes a penetrating hole forming step in which the processing film is partially dissolved in the peeling liquid to form a penetrating hole in the processing film.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: December 6, 2022
    Inventors: Katsuya Akiyama, Yukifumi Yoshida
  • Patent number: 11331625
    Abstract: A gas treatment method includes an absorption step in which a gas to be treated containing an acidic compound, such as carbon dioxide, is brought into contact, in an absorber, with a treatment liquid that absorbs the acidic compound; and a regeneration step in which the treatment liquid, having the acidic compound absorbed therein, is sent to a regenerator, and the treatment liquid is then heated to separate the acidic compound from the treatment liquid. In the regeneration step, a gas almost insoluble to the treatment liquid, such as hydrogen gas, is brought into contact with the treatment liquid.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: May 17, 2022
    Assignees: Kobe Steel, Ltd., National University Corporation Tokai National Higher Education and Research System
    Inventors: Akira Kishimoto, Katsuya Akiyama, Hiroshi Machida, Tsuyoshi Yamaguchi, Takehiro Esaki, Koyo Norinaga
  • Publication number: 20210299712
    Abstract: The substrate processing method includes a hydrophilization step of hydrophilizing a surface of a substrate, a processing liquid supplying step of supplying a processing liquid to the hydrophilized surface of the substrate, a processing film forming step in which the processing liquid supplied to the surface of the substrate is solidified or cured to form a processing film on the surface of the substrate, and a peeling step in which a peeling liquid is supplied to the surface of the substrate to peel the processing film from the surface of the substrate. The peeling step includes a penetrating hole forming step in which the processing film is partially dissolved in the peeling liquid to form a penetrating hole in the processing film.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 30, 2021
    Inventors: Katsuya AKIYAMA, Yukifumi YOSHIDA
  • Publication number: 20210165328
    Abstract: A substrate processing method includes a preprocessing forming step of forming a preprocessing film on a surface of a substrate having the surface on which a first region and a second region in which different substances are exposed are present, a preprocessing film separating step of separating the preprocessing film from the surface of the substrate with a stripping liquid, a processing film forming step of forming a processing film on the surface of the substrate after the preprocessing film separating step, and a processing film separating step of separating the processing film from the surface of the substrate with the stripping liquid.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Applicant: SCREEN Holdings Co., Ltd.
    Inventors: Katsuya AKIYAMA, Yukifumi YOSHIDA, Song ZHANG
  • Publication number: 20210016226
    Abstract: A gas treatment method includes an absorption step in which a gas to be treated containing an acidic compound, such as carbon dioxide, is brought into contact, in an absorber, with a treatment liquid that absorbs the acidic compound; and a regeneration step in which the treatment liquid, having the acidic compound absorbed therein, is sent to a regenerator, and the treatment liquid is then heated to separate the acidic compound from the treatment liquid. In the regeneration step, a gas almost insoluble to the treatment liquid, such as hydrogen gas, is brought into contact with the treatment liquid.
    Type: Application
    Filed: November 12, 2018
    Publication date: January 21, 2021
    Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.), National University Corporation Tokai National Higher Education and Research System
    Inventors: Akira KISHIMOTO, Katsuya AKIYAMA, Hiroshi MACHIDA, Tsuyoshi YAMAGUCHI, Takehiro ESAKI, Koyo NORINAGA
  • Patent number: 10576412
    Abstract: A gas treatment device uses a gas to be treated which contains an acid compound that dissolves into water to produce acid and a treatment liquid which absorbs the acid compound to phase-separate, to separate an acid compound from the gas to be treated. The gas treatment device includes an absorber which brings the gas to be treated into contact with the treatment liquid; a regenerator 14 which heats the treatment liquid contacting the gas to be treated to separate an acid compound; and a liquid feeding portion which feeds the treatment liquid contacting the gas to be treated in the absorber to the regenerator. In the absorber, the treatment liquid contacting the gas to be treated phase-separates into a first phase portion having a high acid compound content and a second phase portion having a low acid compound content. The liquid feeding portion is configured to introduce, into the regenerator, the treatment liquid with the phase-separated first phase portion and second phase portion mixed.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: March 3, 2020
    Assignees: Kobe Steel, Ltd., NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Akira Kishimoto, Akira Matsuoka, Katsuya Akiyama, Makoto Nishimura, Hiroshi Machida, Tsuyoshi Yamaguchi, Takehiro Esaki, Hirotoshi Horizoe
  • Publication number: 20180311610
    Abstract: A gas treatment device uses a gas to be treated which contains an acid compound that dissolves into water to produce acid and a treatment liquid which absorbs the acid compound to phase-separate, to separate an acid compound from the gas to be treated. The gas treatment device includes an absorber which brings the gas to be treated into contact with the treatment liquid; a regenerator 14 which heats the treatment liquid contacting the gas to be treated to separate an acid compound; and a liquid feeding portion which feeds the treatment liquid contacting the gas to be treated in the absorber to the regenerator. In the absorber, the treatment liquid contacting the gas to be treated phase-separates into a first phase portion having a high acid compound content and a second phase portion having a low acid compound content. The liquid feeding portion is configured to introduce, into the regenerator, the treatment liquid with the phase-separated first phase portion and second phase portion mixed.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Akira KISHIMOTO, Akira MATSUOKA, Katsuya AKIYAMA, Makoto NISHIMURA, Hiroshi MACHIDA, Tsuyoshi YAMAGUCHI, Takehiro ESAKI, Hirotoshi HORIZOE
  • Patent number: 9157633
    Abstract: In order to stably operate a boiler using several kinds of solid fuels including depleted ash as fuels, adhesion of ash is suppressed. A calculator (9) preliminarily collects properties of a solid fuel, such as the content rate of ash and the composition of an ash constituent, as data (8). The calculator (9) uses the mix ratio of solid fuels as a parameter and calculates the composition of an ash constituent of the mixed fuels on the basis of the preliminarily measured composition of the ash constituent of each solid fuel. The calculator (9) determines a reference value of the rate of slug by which the ash deposition ratio is reduced on the basis of the relationship between the preliminarily measured ash deposition ratio and the slag ratio. Further, the calculator (9) calculates the mix ratio of each solid fuel using a thermodynamic equilibrium calculation so as to obtain an ash composition in which the slag ratio is not more than the determined reference value.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: October 13, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Katsuya Akiyama, Haeyang Pak
  • Patent number: 9138680
    Abstract: This method for removing nitrogen oxides brings exhaust gas containing oxygen and at least one nitrogen oxide selected from the group consisting of nitrogen monoxide and nitrogen dioxide into contact with ammonia without the presence of a catalyst, for at least 0.5 seconds under a temperature of no less than 900 DEG C., and breaks down the nitrogen oxide. According to this method, it is possible to remove nitrogen oxides in a highly efficient manner and significantly reduce the amount of unreacted ammonia.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 22, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Takeshi Yamashita, Katsuya Akiyama, Noriaki Mizutani
  • Publication number: 20140286845
    Abstract: This method for removing nitrogen oxides brings exhaust gas containing oxygen and at least one nitrogen oxide selected from the group consisting of nitrogen monoxide and nitrogen dioxide into contact with ammonia without the presence of a catalyst, for at least 0.5 seconds under a temperature of no less than 900 DEG C., and breaks down the nitrogen oxide. According to this method, it is possible to remove nitrogen oxides in a highly efficient manner and significantly reduce the amount of unreacted ammonia.
    Type: Application
    Filed: November 2, 2012
    Publication date: September 25, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takeshi Yamashita, Katsuya Akiyama, Noriaki Mizutani
  • Publication number: 20120174836
    Abstract: A device for reducing ash adhesion in a boiler, includes: a calculator (9) which, in the case of mixing one or more types of solid fuels, calculates and determines the mixing ratio of the solid fuels so that the resultant solid fuel mixture has a slag viscosity not lower than a reference value at a predetermined atmospheric temperature; and fuel supply amount regulators (3a, 3b) which regulate the amount of the solid fuels to be supplied to the boiler based on the mixing ratio as described above. By using this device, ash adhesion in a boiler can be easily and accurately predicted and, therefore, ash adhesion can be reduced even in the case of using various types of solid fuels including a low-grade coal as fuel.
    Type: Application
    Filed: October 5, 2010
    Publication date: July 12, 2012
    Applicant: Kabushiki Kaisha Kobe Seike Sho (Kobe Steel, Ltd.)
    Inventors: Katsuya Akiyama, Haeyang Pak
  • Publication number: 20120107751
    Abstract: In order to stably operate a boiler using several kinds of solid fuels including depleted ash as fuels, adhesion of ash is suppressed. A calculator (9) preliminarily collects properties of a solid fuel, such as the content rate of ash and the composition of an ash constituent, as data (8). The calculator (9) uses the mix ratio of solid fuels as a parameter and calculates the composition of an ash constituent of the mixed fuels on the basis of the preliminarily measured composition of the ash constituent of each solid fuel. The calculator (9) determines a reference value of the rate of slug by which the ash deposition ratio is reduced on the basis of the relationship between the preliminarily measured ash deposition ratio and the slag ratio. Further, the calculator (9) calculates the mix ratio of each solid fuel using a thermodynamic equilibrium calculation so as to obtain an ash composition in which the slag ratio is not more than the determined reference value.
    Type: Application
    Filed: July 22, 2010
    Publication date: May 3, 2012
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Katsuya Akiyama, Haeyang Pak
  • Patent number: 6086361
    Abstract: A melt treatment apparatus is provided which obviates an increase in floorspace and in cost and has freedom from a danger of steam explosion and further can control melt discharging with reliability.The welt treatment apparatus 1 is constructed with a furnace body 8 for entry of a material 17 to be heated, a plasma torch 2 that generates a plasma arc 13 so as to melt the material, a melt discharge passage 3 arranged in the furnace body for discharging a hot melt 14 derived by melting the material with the use of the plasma torch, and cooling gas jet means 7 disposed in the melt discharge passage and jetting a cooling gas to cool the hot melt to thereby form a dam 12.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: July 11, 2000
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Yasuo Higashi, Katsuya Akiyama, Tsuyoshi Noura, Akiyoshi Yamane