Patents by Inventor Eiichi Yooda

Eiichi Yooda 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 adjusting consistency
    Patent number: 5595598
    Abstract: Disclosed herein is a met,hod for adjusting the consistency of concrete mix by adding an water-absorbing polymeric material or a thickening agent of carboxymethylcellulose to a fresh concrete mix.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: January 21, 1997
    Assignee: Taisei Rotec Co., Ltd.
    Inventors: Eiichi Yooda, Fumitaka Itoh
  • Method for adjusting consistency
    Patent number: 5332434
    Abstract: Disclosed herein is a method for adjusting the consistency of a concrete mix by adding a water-absorbing polymeric material or a thickening agent of carboxymethylcellulose to a fresh concrete mix.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: July 26, 1994
    Assignee: Masahisa Terao
    Inventors: Eiichi Yooda, Fumitaka Itoh