Patents by Inventor Hazime Asami

Hazime Asami 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).

  • Separation method of methane from other hydrocarbons than methane
    Patent number: 4042332
    Abstract: A method for the separation of methane from a gaseous mixture containing methane and at least one of ethane and propane which comprisesA. simultaneously passing said gaseous mixture and oxygen over a catalyst comprising platinum on an active carbon carrier;B. selectively oxidizing the ethane and propane in said gaseous mixture at a temperature of about 170.degree. C andC. recovering methane from said mixture.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: August 16, 1977
    Assignee: Horiba, Ltd.
    Inventors: Osamu Saitoh, Masakatu Imaki, Hazime Asami