Patents by Inventor Siro Kamei

Siro Kamei 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).

  • Monolithic refractory materials
    Patent number: 4069057
    Abstract: A monolithic refractory material especially suitable for vibration forming comprising a refractory composition containing silica sol, alumina sol or both as a binder and a water-insoluble or slightly water-soluble phosphate. The refractory material is used for lining receptacles such as a ladle or tundish or a trough or the like for treating molten metals.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: January 17, 1978
    Assignees: Nippon Crucible Co., Ltd., Teikoku Kako Co., Ltd., Nippon Steel Corporation
    Inventors: Siro Kamei, Kenzo Takeda, Mitsunao Takahashi, Jiro Nakano