Patents by Inventor Toshio Shishikura

Toshio Shishikura 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).

  • Refrigeration oil composition
    Patent number: 9803122
    Abstract: The refrigeration oil composition for HFC-based refrigerants or HC-based refrigerants of the invention includes a product of the esterification of an alcohol ingredient including pentaerythritol and dipentaerythritol and a fatty acid ingredient including at least one of a linear or branched fatty acid having 5 carbon atoms and a linear or branched fatty acid having 6 carbon atoms and at least one of a linear or branched fatty acid having 8 carbon atoms and a linear or branched fatty acid having 9 carbon atoms, wherein at least one of the fatty acid having 5 carbon atoms and the fatty acid having 6 carbon atoms in the fatty acid ingredient accounts for 20 to 100% by mol of the total amount of the fatty acid ingredient, and either the alcohol ingredient or the fatty acid ingredient is a mixture.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: October 31, 2017
    Assignee: JAPAN SUN OIL COMPANY, LTD.
    Inventors: Rei Saito, Shuichiro Tanaka, Yoshinori Suzuki, Toshio Shishikura
  • REFRIGERATION OIL COMPOSITION
    Publication number: 20140374647
    Abstract: The refrigeration oil composition for HFC-based refrigerants or HC-based refrigerants of the invention includes a product of the esterification of an alcohol ingredient including pentaerythritol and dipentaerythritol and a fatty acid ingredient including at least one of a linear or branched fatty acid having 5 carbon atoms and a linear or branched fatty acid having 6 carbon atoms and at least one of a linear or branched fatty acid having 8 carbon atoms and a linear or branched fatty acid having 9 carbon atoms, wherein at least one of the fatty acid having 5 carbon atoms and the fatty acid having 6 carbon atoms in the fatty acid ingredient accounts for 20 to 100% by mol of the total amount of the fatty acid ingredient, and either the alcohol ingredient or the fatty acid ingredient is a mixture.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 25, 2014
    Inventors: Rei Saito, Shuichiro Tanaka, Yoshinori Suzuki, Toshio Shishikura