Patents by Inventor Kazuyuki Nakajima

Kazuyuki Nakajima 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).

  • Depositing method of wall concrete
    Patent number: 5156791
    Abstract: A depositing method of wall concrete, in which unset concrete is deposited in a form, includes the step of disposing a non-hygroscopic soft sheet which has a large number of hollow projections or ridges on an inner surface of the form being deformable when lateral pressure is applied thereto by the hardening of the concrete.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: October 20, 1992
    Assignee: Inax Corporation
    Inventors: Naomitsu Sano, Kazuyuki Nakajima, Hisashi Maeda, Tatsuya Ohtsu, Kazuhiro Ogasawara, Tetsuya Itoh