Patents by Inventor Gen Takeya

Gen Takeya 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).

  • Method for removing vanadium, nickel, and sulfur from hydrocarbon oils
    Patent number: 3936371
    Abstract: A hydrocarbon oil, particularly a heavy hydrocarbon oil, containing vanadium, nickel, sulfur and asphaltenes is brought into contact with red mud at an elevated temperature in the presence of hydrogen. The treatment removes vanadium, nickel and asphaltenes from oil in high yields.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: February 3, 1976
    Assignee: Agency of Industrial Science & Technology
    Inventors: Shigeru Ueda, Yoshinori Nakata, Shinichi Yokoyama, Naoyuki Todo, Yuji Yoshida, Tadao Ishii, Gen Takeya