Patents by Inventor Joji Arimura

Joji Arimura 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: 4595059
    Abstract: A method of providing a conductor pipe to an opening portion of a well such as an oil well, gas well, geothermal power well or the like. A bore is formed in the ground with a casing tube and an auger screw, inserted into the casing tube, to a predetermined depth, after which the auger screw is withdrawn from the casing tube. Then, the conductor pipe is inserted and concentrically positioned in the casing tube, placed in the bore, to form an annular space between them, to which space a solidifiable filler is supplied from the bottom portion of the space to the upper portion thereof. The casing tube is thereafter withdrawn from the bore and then the filler is solidified to thereby fix the conductor pipe to the opening portion of the well.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: June 17, 1986
    Assignees: Japan Metals & Chemicals Co., Ltd., Shimizu Construction Co., Ltd.
    Inventors: Kunio Katagiri, Joji Arimura, Kazuo Kondo, Taisuke Fujise