Patents by Inventor Chokei Sawaki

Chokei Sawaki 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).

  • Refractories, batch for making the same and method for making the same
    Patent number: 4104075
    Abstract: A refractory comprising 30 to 70% by weight of coarse refractory grain, and as an indispensable ingredient, of bonded structure for the coarse refractory grain titanium nitride, silicon carbide and alumina which are formed therein.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: August 1, 1978
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Takeshi Hayashi, Masao Shibuno, Chokei Sawaki, Susumu Okazaki