Patents by Inventor Arimasa Baba

Arimasa Baba 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).

  • Production of petroleum cokes
    Patent number: 3959115
    Abstract: Any kind of virgin, low-sulfur crude oil is directly treated in a two-stage delayed coking process for yielding non-crystalline coke in the first stage and high-crystalline coke in the second stage, which process comprises preheating the crude oil in a tube heater to 460.degree. - 520.degree.C under 5-20 kg/cm.sup.2 G, maintaining the oil therein at that temperature for 30 - 500 seconds to allow the oil to be heat-soaked, subjecting the oil to first delayed coking under relatively mild conditions and subjecting the uncoked heavy residual oil to second delayed coking under relatively severe conditions.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: May 25, 1976
    Assignees: Maruzen Petrochemical Co., Ltd., The Chiba Carbon Research Corporation
    Inventors: Kiyoshige Hayashi, Mikio Nakaniwa, Minoru Yamamoto, Kazuo Ozaki, Arimasa Baba