Patents by Inventor Junsuke Iguchi

Junsuke Iguchi 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 for strengthening soft soil
    Patent number: 4443260
    Abstract: A high water content soft soil, for example from the sea or river bed, may be improved in strength by incorporating thereinto an additive composed of ingredient A including a mixture of 5-45% by weight of gypsum and 95-55% by weight of a water-granulated iron blast furnace slag having an particle size within the range of 100-1 .mu.m and ingredient B including a Portland cement. The ratio by weight of ingredient A to ingredient B is within the range of 75/25-55/45. Ingredient A is incorporated into the soft soil before incorporation of ingredient B.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: April 17, 1984
    Assignee: Chiyoda Chemical Engineering & Constr., Co., Ltd.
    Inventors: Hajime Miyoshi, Etsuo Asanagi, Junsuke Iguchi, Ikuo Okabayashi