Patents by Inventor Sadatoshi Kojima

Sadatoshi Kojima 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).

  • Separation device for unburned carbon in fly ash and separation method
    Patent number: 6708909
    Abstract: A separation device includes a casing and a first and a second rotation blade. A pulverization chamber is defined between the casing, the first, and the second rotation blade. Operating an urging device and at least one of the first and the second rotation blades, creates channeling vortices within the pulverization chamber. Fly ash containing unburned carbon is feed into the pulverization chamber, and through at least repeated self-collision, unburned carbon is segregated and reduced in size while remaining particular matter is similarly segregated and reduced in size. A method implements the separation device and provides simple results.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: March 23, 2004
    Assignee: Nikkiso Co., Ltd.
    Inventors: Yasuhiro Toda, Sadatoshi Kojima, Takeshi Yamamoto
  • Separation device for unburned carbon in fly ash and separation method
    Publication number: 20020014157
    Abstract: A separation device includes a casing and a first and a second rotation blade. A pulverization chamber is defined between the casing, the first, and the second rotation blade. Operating an urging device and at least one of the first and the second rotation blades, creates channeling vortices within the pulverization chamber. Fly ash containing unburned carbon is feed into the pulverization chamber, and through at least repeated self-collision, unburned carbon is segregated and reduced in size while remaining particular matter is similarly segregated and reduced in size. A method implements the separation device and provides simple results.
    Type: Application
    Filed: June 25, 2001
    Publication date: February 7, 2002
    Inventors: Yasuhiro Toda, Sadatoshi Kojima, Takeshi Yamamoto