Patents by Inventor Yoshimitsu Miyauchi

Yoshimitsu Miyauchi 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 the hydroprocessing of heavy hydrocarbon feeds using at least two reactors
    Publication number: 20060060509
    Abstract: The invention pertains to a process for hydroprocessing a heavy hydrocarbon feed using at least two reactors in which a heavy hydrocarbon feed is subjected sequentially to the steps of hydroprocessing in a first hydroprocessing reactor, in which it is subjected sequentially to a hydrodemetallization step, a hydrodesulfurization step carried out at a temperature higher than that of said hydrodemetallization step, and an asphaltene removal step carried out at a temperature higher than that of said hydrodesulfurization step, hydroprocessing in a second hydroprocessing reactor, in which it is subjected sequentially to a hydrodesulfurization step and an asphaltene removal step, which latter is carried out at a temperature higher than that of said hydrodesulfurization step.
    Type: Application
    Filed: June 5, 2003
    Publication date: March 23, 2006
    Inventors: Yoshimitsu Miyauchi, Toshiyuki Ado, Takeshi Hashiguchi, Naoto Kimbara, Katsushisa Fujita
  • Hydrotreatment process
    Patent number: 5217603
    Abstract: A process for hydrotreating a hydrocarbon oil contaminated with suspended solid particles and dissolved metallic compounds, comprising the contacting of the oil at an elevated temperature in the presence of hydrogen with porous inorganic oxide particles having a surface area of 1 m.sup.2 /g or less and a pore volume of at least 0.1 ml/g in pores having a diameter of at least 10 microns.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: June 8, 1993
    Assignee: Akzo N.V.
    Inventors: Yoshimasa Inoue, Naoyuki Torihara, Syuhei Manabe, Kenichi Kawamoto, Yoshimitsu Miyauchi, Katsuhisa Fujita