Patents by Inventor Tsuneo Yoshii

Tsuneo Yoshii 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).

  • Use of a catalyst in a hydrogenolysis process
    Patent number: 4563265
    Abstract: A catalyst used for liquefaction of coal and hydrogenolysis or hydrodesulfurization of heavy oils. The catalyst is prepared by reacting one or more compounds selected from the group consisting of carbonyl compounds of molybdenum, salts of molybdenum, oxides of molybdenum, metallic molybdenum, and alloys containing molybdenum, with alkali and water at a temperature ranging from 220.degree. to 450.degree. C. under a carbon monoxide atmosphere; and reducing the product obtained at temperature ranging from 400.degree. to 450.degree. C. under a hydrogen atmosphere.
    Type: Grant
    Filed: June 12, 1984
    Date of Patent: January 7, 1986
    Assignee: Toshitaka Ueda
    Inventors: Tsuneo Yoshii, Toshitaka Ueda
  • Catalyst
    Patent number: 4467049
    Abstract: A catalyst used for liquefaction of coal and hydrogenolysis or hydrodesulfurization of heavy oils. The catalyst is prepared by reacting one or more compounds selected from the group consisting of carbonyl compounds of molybdenum, salts of molybdenum, oxides of molybdenum, metallic molybdenum, and alloys containing molybdenums, with alkali and water, at a temperature ranging from 220.degree. to 450.degree. C. under a carbon monoxide atmosphere; and reducing the product obtained at a temperature ranging from 400.degree. to 450.degree. C. under a hydrogen atmosphere.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: August 21, 1984
    Assignee: Toshitaka Ueda
    Inventors: Tsuneo Yoshii, Toshitaka Ueda
  • Method of producing a catalyst for liquefaction of coal
    Patent number: 4435522
    Abstract: A method of producing a catalyst for liquefaction of coal comprises heat-treating a salt or oxide of molybdenum or an alloy steel containing at least 0.3 weight percent of molybdenum in the presence of an alkali and water in a carbon monoxide atmosphere at a temperature of 220.degree. to 450.degree. C., and after water rinse and drying, reducing the same in the presence of tetralin and/or a phenol compound in a hydrogen atmosphere at a temperature of 400.degree. to 450.degree. C.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: March 6, 1984
    Inventors: Tsuneo Yoshii, Toshitaka Ueda, Tsukasa Kuroda