Patents by Inventor Kimihiro SAWA

Kimihiro SAWA 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).

  • Cooling system for fluid to be cooled
    Patent number: 11725852
    Abstract: A cooling system includes a compressor configured to pressurize carbon dioxide to form pressurized carbon dioxide, a mixer configured to generate mixed refrigerant in which the pressurized carbon dioxide and solvent in a liquid state, a depressurization apparatus provided downstream from the mixer and configured to depressurize the mixed refrigerant, a separator configured to separate carbon dioxide in a gas state from the mixed refrigerant, a heat exchanger configured to exchange heat between the mixed refrigerant cooled through depressurization and a fluid to be cooled, and a second heat exchanger configured to cool the carbon dioxide or the mixed refrigerant using vaporized carbon dioxide or the mixed refrigerant.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: August 15, 2023
    Assignee: IHI Corporation
    Inventors: Kimihiro Sawa, Hiromichi Noma, Taiga Yamamoto
  • COOLING SYSTEM FOR FLUID TO BE COOLED
    Publication number: 20220357080
    Abstract: A cooling system includes a compressor configured to pressurize carbon dioxide to form pressurized carbon dioxide, a mixer configured to generate mixed refrigerant in which the pressurized carbon dioxide and solvent in a liquid state, a depressurization apparatus provided downstream from the mixer and configured to depressurize the mixed refrigerant, a separator configured to separate carbon dioxide in a gas state from the mixed refrigerant, a heat exchanger configured to exchange heat between the mixed refrigerant cooled through depressurization and a fluid to be cooled, and a second heat exchanger configured to cool the carbon dioxide or the mixed refrigerant using vaporized carbon dioxide or the mixed refrigerant.
    Type: Application
    Filed: July 26, 2022
    Publication date: November 10, 2022
    Applicant: IHI Corporation
    Inventors: Kimihiro SAWA, Hiromichi NOMA, Taiga YAMAMOTO
  • Cooling system for fluid to be cooled
    Patent number: 11466903
    Abstract: A cooling system includes a compressor configured to pressurize carbon dioxide to form pressurized carbon dioxide, a mixer configured to generate mixed refrigerant in which the pressurized carbon dioxide and solvent in a liquid state, a depressurization apparatus provided downstream from the mixer and configured to depressurize the mixed refrigerant, a separator configured to separate carbon dioxide in a gas state from the mixed refrigerant, a heat exchanger configured to exchange heat between the mixed refrigerant cooled through depressurization and a fluid to be cooled, and a second heat exchanger configured to cool the carbon dioxide or the mixed refrigerant using vaporized carbon dioxide or the mixed refrigerant.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: October 11, 2022
    Assignee: IHI Corporation
    Inventors: Kimihiro Sawa, Hiromichi Noma, Taiga Yamamoto
  • COOLING SYSTEM
    Publication number: 20200011576
    Abstract: A cooling system includes a compressor configured to pressurize carbon dioxide to form pressurized carbon dioxide, a mixer configured to generate mixed refrigerant in which the pressurized carbon dioxide and solvent in a liquid state, a depressurization apparatus provided downstream from the mixer and configured to depressurize the mixed refrigerant, a separator configured to separate carbon dioxide in a gas state from the mixed refrigerant, a heat exchanger configured to exchange heat between the mixed refrigerant cooled through depressurization and a fluid to be cooled, and a second heat exchanger configured to cool the carbon dioxide or the mixed refrigerant using vaporized carbon dioxide or the mixed refrigerant.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Applicant: IHI Corporation
    Inventors: Kimihiro SAWA, Hiromichi NOMA, Taiga YAMAMOTO