Patents by Inventor Kazutoyo Sugihara

Kazutoyo Sugihara 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).

  • Patent number: 5066399
    Abstract: A belt press type dehydration device of improved efficiency includes upper and lower pressing belts of dual layer construction. A first mesh member layer is made of Z-shaped interlocked wire members, and to this is fastened the filter sheet layer. The meshed member layer is designed to provide support for the filter sheet layer and to engage sprocket teeth driven by a motor to advance the belts. Since high tensile strength is no longer required of the filter sheet, it can be thinner and coarser than before, leading to increased dehydration efficiency. Also, the number of pressing drums can be reduced due to the increased efficiency. The upper belt mash layer is made of two separate mesh loops attached to each edge of the filter sheet layer. Sprockets adjacent the pressing drums are spaced near the edges of the belts, to reduce or eliminate leakage over the edges during pressing.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: November 19, 1991
    Inventors: Kazutoyo Sugihara, Yasuhide Kinoda
  • Patent number: 4743379
    Abstract: The instant invention comprises a method and apparatus for providing an alternative to chemical precipitation, electroplating and hydroxide floculation and for improving the separation of heavy metal from water.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: May 10, 1988
    Inventors: Kazutoyo Sugihara, Yasuhide Kinoda
  • Patent number: 4738783
    Abstract: The instant invention provides a method and apparatus to improve the treatment capacity in the flotation process and to reduce the cost of equipment improving the dehydration of the separated scum using only natural dehydration and air-dry that have no need of mechanical dehydration process.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: April 19, 1988
    Inventors: Kazutoyo Sugihara, Yasuhide Kinoda
  • Patent number: 4738784
    Abstract: A flotation device provided with a raw water tank; a flotation tank thereto the flowing of raw water from said raw water tank is generated by a water level differential; a stirring apparatus for air mixing located at flowing passage of raw water flows from said raw water tank to said flotation tank; a chemicals supply apparatus adding the cationic polymer coagulant at the upper stream side and the anionic polymer coagulant at the lower stream side of said stirring apparatus of said flowing passage; a gas supply apparatus feeding air with lowering the upper stream side of flowing passage at just before upper stream side of said stirring apparatus of said flowing passage.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: April 19, 1988
    Inventor: Kazutoyo Sugihara