Patents by Inventor Minematsu Miyazaki

Minematsu Miyazaki 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).

  • Flame-resistant plaster board and its manufacture
    Patent number: 4064317
    Abstract: A flame-resistant plaster board characterized in that the board paper constituting the outside of the plaster board contains at least one alkali compound selected from the group consisting of hydroxides and salts of alkali metals and alkaline earth metals which easily decompose or melt on heating. Said flame-resistant plaster board is improved in that the generation of smoke on heating is inhibited without reduction of the mechanical strength.
    Type: Grant
    Filed: February 4, 1976
    Date of Patent: December 20, 1977
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kozo Fukuba, Minematsu Miyazaki