Patents by Inventor Shunji Kitada

Shunji Kitada 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).

  • Process for producing hydrodesulfurization catalyst and hydrodesulfurizing gas oil therewith
    Patent number: 6063265
    Abstract: A process for producing a hydrodesulfurization catalyst is disclosed, comprising impregnating an inorganic oxide carrier containing a crystalline aluminosilicate with a solution consisting of Group VI metal oxide, a Group VIII metal oxide, and phosphorus. Also disclosed is a process for deep hydrodesulfurization of a gas oil fraction using said catalyst to obtain gas oil having an extremely low sulfur content.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: May 16, 2000
    Assignees: Cosmo Oil Co., Ltd., Petpoleum Energy Center
    Inventors: Osamu Chiyoda, Kazushi Usui, Mitsugu Yumoto, Kazuo Idei, Etsuo Suzuki, Katsuyoshi Ohki, Takashi Fujikawa, Hatsutaro Yamazaki, Shunji Kitada