Patents by Inventor Daizo Kita

Daizo Kita 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).

  • Slurry excavating method
    Patent number: 4551256
    Abstract: A slurry excavating method for excavating the ground or drilling a hole using excavating slurry containing a powder of water absorbing resin. This method makes it easy to prevent the slurry from flowing into gaps in the ground or cracks in fractured shale layer or fissile layer while excavating the ground.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: November 5, 1985
    Assignees: Ohbayashi-Gumi, Ltd., Kuraray Co., Ltd.
    Inventors: Daizo Kita, Tsutomu Nakamura, Takeshi Kawachi