Patents by Inventor Hidehisa Sakamoto

Hidehisa Sakamoto 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).

  • Nitrogen-enriched gas manufacturing method, gas separation method and nitrogen-enriched gas manufacturing apparatus
    Patent number: 9403118
    Abstract: A nitrogen-enriched gas manufacturing method and a nitrogen-enriched gas manufacturing apparatus which minimize variations in the compressor load in order to ensure satisfactory utilization of the performance of the compressor.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: August 2, 2016
    Assignee: TAIYO NIPPON SANSO CORPORATION
    Inventors: Hidehisa Sakamoto, Makiya Kokubu
  • Method for producing nitrogen gas, method for separating gas and device for producing nitrogen gas
    Patent number: 9359203
    Abstract: A method for producing nitrogen gas from a raw material gas using a PSA system, the method including using a second adsorbent, which is packed in an auxiliary adsorption tank provided in a line connecting two main adsorption tanks packed with a first adsorbent, to reduce the oxygen concentration within a recovered gas discharged from the main adsorption tank performing a depressurization equalization step, and then introducing the gas into the main adsorption tank performing a pressurization equalization step.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 7, 2016
    Assignee: TAIYO NIPPON SANSO CORPORATION
    Inventors: Makiya Kokubu, Hidehisa Sakamoto
  • NITROGEN-ENRICHED GAS MANUFACTURING METHOD, GAS SEPARATION METHOD AND NITROGEN-ENRICHED GAS MANUFACTURING APPARATUS
    Publication number: 20150007724
    Abstract: A nitrogen-enriched gas manufacturing method and a nitrogen-enriched gas manufacturing apparatus which minimize variations in the compressor load in order to ensure satisfactory utilization of the performance of the compressor.
    Type: Application
    Filed: April 9, 2012
    Publication date: January 8, 2015
    Applicant: TAIYO NIPPON SANSO CORPORATION
    Inventors: Hidehisa Sakamoto, Makiya Kokubu
  • METHOD FOR PRODUCING NITROGEN GAS, METHOD FOR SEPARATING GAS AND DEVICE FOR PRODUCING NITROGEN GAS
    Publication number: 20140326139
    Abstract: A method for producing nitrogen gas from a raw material gas using a PSA system, the method including using a second adsorbent, which is packed in an auxiliary adsorption tank provided in a line connecting two main adsorption tanks packed with a first adsorbent, to reduce the oxygen concentration within a recovered gas discharged from the main adsorption tank performing a depressurization equalization step, and then introducing the gas into the main adsorption tank performing a pressurization equalization step.
    Type: Application
    Filed: November 9, 2012
    Publication date: November 6, 2014
    Applicant: TAIYO NIPPON SANSO CORPORATION
    Inventors: Makiya Kokubu, Hidehisa Sakamoto