Patents by Inventor Tetusya Yanase

Tetusya Yanase 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).

  • Process for producing acetone from bioethanol
    Patent number: 7973199
    Abstract: The present invention provides a technique for producing acetone in a high yield from hydrated ethanol derived from biomass, without requiring a large amount of energy. Hydrated ethanol derived from biomass is heated to a reaction temperature of 400° C. or higher in the presence of a Zr—Fe catalyst, thereby producing acetone. The reaction temperature is preferably from 450 to 550° C., and the Zr—Fe catalyst preferably contains 5 to 10% by mass of Zr. The present invention allows purification of hydrated acetone without requiring purification of the hydrated ethanol.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: July 5, 2011
    Assignees: Metawater Co., Ltd., National University Corporation Hokkaido University
    Inventors: Takao Masuda, Teruoki Tago, Tetusya Yanase, Hirokazu Tsuboi
  • PROCESS FOR PRODUCING ACETONE FROM BIOETHANOL
    Publication number: 20110015445
    Abstract: The present invention provides a technique for producing acetone in a high yield from hydrated ethanol derived from biomass, without requiring a large amount of energy. Hydrated ethanol derived from biomass is heated to a reaction temperature of 400° C. or higher in the presence of a Zr—Fe catalyst, thereby producing acetone. The reaction temperature is preferably from 450 to 550° C., and the Zr—Fe catalyst preferably contains 5 to 10% by mass of Zr. The present invention allows purification of hydrated acetone without requiring purification of the hydrated ethanol.
    Type: Application
    Filed: August 25, 2010
    Publication date: January 20, 2011
    Applicants: Metawater Co., Ltd., National University Corporation Hokkaido University
    Inventors: Takao MASUDA, Teruoki TAGO, Tetusya YANASE, Hirokazu TSUBOI