Patents by Inventor Masura Maki

Masura Maki 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).

  • Apparatus to concentrate and purify alcohol
    Patent number: 5250271
    Abstract: A method and an apparatus to condense and rectify alcohol, and more particularly to a method and an apparatus suitable for the energy-saving condensation and rectification of high-purity alcohol from the synthesized alcohol, the used alcohol aqueous solution in food industry and the fermented alcohol.The method makes it possible to extract and recover alcohol of 99 wt % or higher with small quantity of propane solvent, using the propane in supercritical or pseudocritical conditions in the process of condensation and recovery of alcohol from aqueous solution of alcohol. Further, the method makes it possible to condense alcohol to the concentration of 95 wt % or higher by increasing the selectivity of alcohol through the cooling of the propane to liquid state.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: October 5, 1993
    Assignee: Minister of International Trade & Industry
    Inventors: Hirotoshi Horizoe, Masura Maki, Tetsuya Tanimoto, Masaki Yanagi
  • Method to concentrate and purify alcohol
    Patent number: 5053563
    Abstract: The present invention relates to a method and an apparatus to condense and rectify alcohol, and more particularly to a method and an apparatus suitable for the energy-saving condensation and rectification of high-purity alcohol from the synthesized alcohol, the used alcohol aqueous solution in food industry and the fermented alcohol.The invention provides a method, which makes it possible to extract and recover alcohol of 99 wt % or higher with small quantity of propane solvent, using the propane in supercritical or pseudocritical conditions in the process of condensation and recovery of alcohol from aqueous solution of alcohol. Further, the method makes it possible to condense alcohol to the concentration of 95 wt % or higher by increasing the selectivity of alcohol through the cooling of the propane to liquid state.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: October 1, 1991
    Assignee: Minister of International Trade & Industry
    Inventors: Hirotoshi Horizoe, Masura Maki, Tetsuya Tanimoto, Masaaki Yanagi