Patents by Inventor Kazuto Yoshimori

Kazuto Yoshimori 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).

  • Hydraulic composition and process for producing concrete pile using the same
    Patent number: 5423634
    Abstract: A hydraulic composition comprising (a) a cement composition prepared by subjecting size-adjusted cement having its particle size distribution adjusted to have a 50% pass particle diameter of from 2 to 7 .mu.m and a ratio of a 90% pass particle diameter to a 10% pass particle diameter of from 25 to 40 to a water-spraying treatment to increase the loss on ignition thereof by 0.5 to 2.0% by weight and (b) a water reducing agent; and a process for producing a concrete pile by using a mixture of the hydraulic composition and from 18 to 25% by weight of water based on the hydraulic composition. A mortar or concrete mixture of the hydraulic composition exhibits sufficient fluidity and provides a hardened product having a greatly improved compressive strength. The concrete pile produced by using the hydraulic composition has a compressive strength of 800 kgf/cm.sup.2 or higher at one day age.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: June 13, 1995
    Assignee: Nihok Cement Company, Ltd.
    Inventors: Kotaro Fujita, Kazuto Yoshimori, Tomoyuki Sugaya, Yukinori Yamazaki, Takashi Suzuki, Satoshi Tanaka, Takahisa Okamoto