Patents by Inventor Yoshimi Okabe

Yoshimi Okabe 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).

  • Automated ultrasonic examination system for heat transfer tubes in a boiler
    Patent number: 4872347
    Abstract: An automated ultrasonic examination system for heat transfer tubes in a boiler makes it possible to perform ultrsonic examination from inside of the heat transfer tubes without necessitating the removal of scale from the outer surfaces of the boiler tubes by polishing and without necessitating access to places where manual measurements are difficult or impossible to make.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: October 10, 1989
    Assignees: Tokyo Electric Power Co., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Yoshimi Okabe, Keiichi Iwamoto, Masaaki Torichigai, Shozo Kaneko, Joji Ichinari, Kiyoshi Koizumi
  • Nondestructive inspection apparatus for heat-transfer tubes in boilers
    Patent number: 4856353
    Abstract: When a measuring instrument is inserted through a header into a boiler heat-transfer tube so as to carry out inspection, a guide for insertion of the measuring instrument is positively and correctly aligned with a heat transfer tube hole of the header.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: August 15, 1989
    Assignees: The Tokyo Electric Power Co., Ishikwajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Yoshimi Okabe, Katsumi Kikuchi