Patents by Inventor Ikuo Uchida

Ikuo Uchida 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).

  • Process for producing hydraulic cements
    Patent number: 4404031
    Abstract: A calcium sulfoaluminate clinker having a calcium sulfoaluminate compound 3CaO.3Al.sub.2 O.sub.3. CaSO.sub.4 as a main component, a Portland cement and a blast furnace granulated slag are mixed to produce cements which prevent the formation of efflorescence.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: September 13, 1983
    Assignee: Chichibu Cement Kabushikikaisha
    Inventors: Giichi Sudoh, Keiichi Minegishi, Kanjiro Ishizaki, Ikuo Uchida