Patents by Inventor Mineo Ito

Mineo Ito 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).

  • Concrete composition for roller compacted placing method
    Patent number: 4892586
    Abstract: A concrete composition for use in a roller compacted placing method includes a cement, an aggregate, an organic acid and/or a salt thereof and a set accelerating inorganic salt.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: January 9, 1990
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshiharu Watanabe, Hisayuki Shimizu, Mineo Ito
  • Cement additive containing superplasticizer and bentonite
    Patent number: 4861378
    Abstract: A cement additive contains a superplasticizer, an inorganic strength increasing agent such as calcium sulfate or silica fume and bentonite.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: August 29, 1989
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshiharu Watanabe, Hisayuki Shimizu, Mineo Ito, Hitoshi Moriyama