Patents by Inventor Fujio Namigata

Fujio Namigata 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).

  • Water-reducing admixtures for ceramic pastes
    Patent number: 3931083
    Abstract: Water-reducing additives for ceramic material, and especially for cement paste, mortar or concrete, which comprise a phenolic compound having a sulfo radical or a sulfomethyl radical, wherein the hydrogen atoms of acidic radicals in part of said phenolic compound molecules are substituted by atoms of sodium, potassium or calcium.
    Type: Grant
    Filed: January 30, 1974
    Date of Patent: January 6, 1976
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Isamu Sasaki, Iwao Kojima, Fujio Namigata, Yoku Ashigame, Hiroshi Mihara