Patents by Inventor Syozo Matumoto

Syozo Matumoto 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).

  • Solvent for the extraction of oil fraction in water
    Patent number: 4164653
    Abstract: The present invention relates to a solvent primarily composed of a low polymer of chlorotrifluoroethylene for the extraction of an oil fraction in water and measuring the concentration of the oil fraction in water by solvent extraction in the infrared absorption method. The low polymers of chlorotrifluoroethylene contemplated as a solvent herein may be a single polymer or a mixture of polymers of different degrees of polymerization as shown in the following formulae: ##STR1## WHEREIN BOTH ATOMS REPRESENTED BY X in the first chemical formula are the same or different from each other and X is a chlorine or fluorine atom, and n is 2 or 3.
    Type: Grant
    Filed: November 29, 1977
    Date of Patent: August 14, 1979
    Assignees: Horiba, Ltd., Daikin Kogyo Co., Ltd.
    Inventors: Syozo Matumoto, Mitsuhiro Okamoto