Patents by Inventor Shinho Shiho

Shinho Shiho 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).

  • Gypsum compositions
    Patent number: 4174230
    Abstract: A gypsum composition comprising: (A) a lightweight spherical gypsum and (B) at least one binder selected from the group consisting of a water-soluble organic polymer, a water-dispersible organic polymer, a water-soluble inorganic compound, a water-dispersion medium colloid-forming inorganic compound, a water-hardenable compound and a mixture thereof. This gypsum composition provides a gypsum mold which is lightweight and, at the same time, has great mechanical strength.
    Type: Grant
    Filed: February 15, 1978
    Date of Patent: November 13, 1979
    Assignee: Idemitsu Kosan Company Limited
    Inventors: Mitsuo Hashimoto, Toshiyuki Takyu, Masaru Inoue, Masami Takasaki, Shinho Shiho