Patents by Inventor Tuguo Sumizaki

Tuguo Sumizaki 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).

  • Catalyst supporting bed
    Patent number: 4314914
    Abstract: A catalyst supporting bed in a vertical reactor for production of formaldehyde by gas phase catalytic dehydrogenation of methanol in the presence of a solid metal catalyst, characterized in that the bed is made of a nickel alloy having a nickel content of not less than 25% by weight at least at the surface.
    Type: Grant
    Filed: January 2, 1980
    Date of Patent: February 9, 1982
    Assignee: Koei Chemical Co., Ltd.
    Inventors: Kazuo Uede, Tuguo Sumizaki, Masatoshi Nakamura