Patents by Inventor Takashi Kaihara

Takashi Kaihara 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).

  • Method of detecting defective portions of metallic tank having thermally protective coating of polyurethane foam
    Patent number: 4174480
    Abstract: Defective portions of a metallic tank storing hot hydrocarbon oil therein and having a thermally protective coating of polyurethane foam adhered onto the side wall thereof, are detected by determining a distribution of surface temperatures of the coating. Portions of the coating of relatively high temperatures correspond to defective portions of the coating which cause corrosion of the side wall of the tank, and in turn underlying corroded areas in the side wall.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: November 13, 1979
    Assignee: Nippon Oil Company, Limited
    Inventors: Takashi Kaihara, Masao Taneoka, Toshitsugu Kusaka