Patents by Inventor Teruo Kondo

Teruo Kondo 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 recovery of aromatic nitrogen-containing compounds
    Patent number: 5002655
    Abstract: A process for the recovery of aromatic nitrogen-containing compounds from an oily substance is disclosed which comprises extracting an oily substance containing aromatic nitrogen-containing compounds with a solvent containing water and a lower alkanol.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: March 26, 1991
    Assignee: Director-General of Agency of Industrial Science and Technology
    Inventors: Koji Ukegawa, Teruo Kondo, Akimitsu Matsumura, Kazumasa Yazu
  • Hydroconversion of heavy hydrocarbon oils
    Patent number: 4406772
    Abstract: Heavy hydrocarbon oils such as vacuum residues are converted into light hydrocarbon oils by reaction with hydrogen in the presence of a catalyst. The catalyst is obtained as a by-product in the system and includes a coke produced by the hydrotreatment and metal components, such as vanadium and nickel, derived from the heavy hydrocarbon oils and deposited on the coke during the hydrotreatment. A portion of the reaction residue is subjected to a treatment to recover the metal components, a part of which are used in the catalyst.
    Type: Grant
    Filed: June 11, 1982
    Date of Patent: September 27, 1983
    Assignee: Director-General of Agency of Industrial Science & Technology
    Inventors: Yoshiyuki Sasaki, Etsuro Nakamura, Yoshimoto Ojima, Teruo Kondo, Koji Ukegawa, Akimitsu Matsumura