Patents by Inventor Tatuo Omata

Tatuo Omata 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 for the hydrotreating of heavy hydrocarbon oils
    Patent number: 4595667
    Abstract: This invention relates to a catalyst for the hydrotreating of heavy hydrocarbon oils, which catalyst comprises a dual structure including a porous core (1), made chiefly of alumina, which has micropores having an average size smaller than 170 angstrom and to which at least one active metal is applied, and a surface layer (2) comprised mainly of at least one clay mineral selected from the group consisting of sepiolite, halloysite, attapulgite, palygorskite, and asbestos. The active metal may be applied to the surface layer (2) as desired.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: June 17, 1986
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Shinji Takase, Akira Inoue, Tatuo Omata, Masao Mori, Yoshihiro Yamazaki, Tatsuki Kubo