Patents by Inventor Yukiyoshi Sawatani

Yukiyoshi Sawatani 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).

  • Method for preserving quality of nitric oxide
    Patent number: 9945516
    Abstract: A method provide high-purity nitric oxide by preserving quality of the nitric oxide by suitably inhibiting the disproportionation reaction of the nitric oxide that is transported in a state of being stored in a high-pressure gas cylinder, and decreasing the amount of nitrous oxide and nitrogen dioxide that are produced during the transportation. When the nitric oxide is transported in a state of being stored in the high-pressure gas cylinder, the nitric oxide is filled into the high-pressure gas cylinder at a gauge pressure between 1.96 MPa to 3.5 MPa to be stored, and is transported in a state in which the exterior surface temperature of the high-pressure gas cylinder is held in a range from ?15° C. to 5° C.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: April 17, 2018
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Junichi Kawakami, Akira Okabe, Masahiro Komatsu, Yukiyoshi Sawatani
  • METHOD FOR PRESERVING QUALITY OF NITRIC OXIDE
    Publication number: 20160003414
    Abstract: A method provide high-purity nitric oxide by preserving quality of the nitric oxide by suitably inhibiting the disproportionation reaction of the nitric oxide that is transported in a state of being stored in a high-pressure gas cylinder, and decreasing the amount of nitrous oxide and nitrogen dioxide that are produced during the transportation. When the nitric oxide is transported in a state of being stored in the high-pressure gas cylinder, the nitric oxide is filled into the high-pressure gas cylinder at a gauge pressure between 1.96 MPa to 3.5 MPa to be stored, and is transported in a state in which the exterior surface temperature of the high-pressure gas cylinder is held in a range from ?15° C. to 5° C.
    Type: Application
    Filed: September 4, 2013
    Publication date: January 7, 2016
    Inventors: Junichi Kawakami, Akira Okabe, Masahiro Komatsu, Yukiyoshi Sawatani