Patents by Inventor Tomoo Okiura

Tomoo Okiura 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).

  • Preparing organic powder by anaerobically treating fermentation waste fluid and aerobically treating the digested fermentation liquor
    Patent number: 6039782
    Abstract: The present invention relates to a process for producing granulated organic matters wherein a precipitated fraction obtaied in a settling tank from a methane fermentation fluid having been treated aerobically in an aeration tank is added to a fermentation waste fluid. According to the present invention, there is provided a process for producing physically stable granulated organic matters with reduced increase of stickiness occurring at the time of manufacturing granulated organic matters from fermentation waste fluid.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: March 21, 2000
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Akio Sota, Tomoo Okiura, Masaki Azuma
  • Process for the preparation of malic acid crystals
    Patent number: 4035419
    Abstract: A process for producing crystals of malic acid having a uniform high purity using maleic acid or fumaric separately or together. The reaction mixture is cooled, resulting solids are separated and the resulting liquid is concentrated and then cooled to a specified temperature range according to the concentration of malic acid in weight %. The resulting solid is separated and the remaining liquid is cooled to 19.degree. to 21.degree. C to crystallize malic acid.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: July 12, 1977
    Inventors: Shozo Sumikawa, Shinichiro Sakaguchi, Tomoo Okiura