Patents by Inventor Shuji Yukitani

Shuji Yukitani 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).

  • Method of hardening soil and hardened soil
    Patent number: 6536995
    Abstract: A method for hardening soil and soil hardened with the method. The soil is mixed with cement and with a soil hardening agent including at least eight of the cations Ca++, Na−, Mg++, K+, NH4+, Ba++, Fe3+, Al3+, Mn4+, Co++ and Ti4+, at least two of the anions Cl−, SO4−− and PO43− and at least one organic acid.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: March 25, 2003
    Assignee: Taguchi Technical Laboratory Co., Ltd.
    Inventors: Yoshihiro Taki, Kiyokazu Sasaki, Shuji Yukitani
  • Mixing agent for improving soil, method of improvement, and soil improved with the agent
    Publication number: 20010046419
    Abstract: A mixing agent for improving soil consists of cations selected from Ca++, Na+, Mg++, K+, NH4+, Ba++, Fe3+, Al3+, Mn4+, Co++ and Ti4+, anions selected from Cl−, SO4−− and PO43−, and organic acid such as citric acid, tartaric acid and maleic acid.
    Type: Application
    Filed: April 16, 2001
    Publication date: November 29, 2001
    Inventors: Yoshihiro Taki, Kiyokazu Sasaki, Shuji Yukitani