Patents by Inventor Isao Honzyo

Isao Honzyo 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 solvent deasphalting of asphaltene-containing hydrocarbons
    Patent number: 4525269
    Abstract: A process for the solvent deasphalting of asphaltene-containing hydrocarbons which comprising mixing asphaltene-containing hydrocarbons with a metal compound such as aluminum carbonates or titanium (IV) oxide and also with a solvent such as n-heptane, n-hexane, n-heptane or a mixed n-pentane.n-butanol solvent, to form a mixture which is then allowed to stand still to precipitate and separate the asphaltene therefrom thereby obtaining a deasphalted oil.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: June 25, 1985
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Masaki Ikematsu, Isao Honzyo, Kazuo Sakai
  • Process for the solvent deasphalting of asphaltene-containing hydrocarbons
    Patent number: 4514287
    Abstract: A process for the solvent deasphalting of asphaltene-containing hydrocarbons which comprising mixing asphaltene-containing hydrocarbons with a metal compound such as aluminum sulfate or titanium (IV) oxide and also with a solvent such as n-heptane, n-hexane, n-heptane or a mixed n-pentane.n-butanol solvent, to form a mixture which is then allowed to stand still to precipitate and separate the asphaltene therefrom thereby obtaining a deasphalted oil.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: April 30, 1985
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Masaki Ikematsu, Isao Honzyo, Kazuo Sakai
  • Process for the solvent deasphalting of asphaltene-containing hydrocarbons
    Patent number: 4502950
    Abstract: A continuous process for solvent deasphalting asphaltene-containing hydrocarbons which comprises mixing (A) 100 parts by weight of asphaltene-containing hydrocarbons with (B) 0.005-0.5 parts by weight of an amorphous silicon dioxide and/or a silicate compound and also with (C) 5-2000 parts by weight of a solvent such as n-heptane, n-hexane, n-heptane or a mixed n-pentane.n-butanol solvent, to form a mixture which is then allowed to stand still to precipitate and separate the asphaltene therefrom thereby obtaining a deasphalted oil.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: March 5, 1985
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Masaki Ikematsu, Isao Honzyo, Kazuo Sakai