Patents by Inventor Osamu Ookubo

Osamu Ookubo 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).

  • Freezing agent consumption measurement system
    Patent number: 5203205
    Abstract: In a freezing agent consumption measurement system for measuring the consumption of the freezing agent in a low-temperature container, due to evaporation of the freezing agent, including a gas flow meter provided in the gas flow path to measure the flow of the evaporated gas from the freezing agent, a tank is provided in the gas flow path means, and the pressure in the tank is maintained at a predetermined value. The measurement of the flow of the gas is not affected by the variation in the atmospheric pressure, and accordingly accurate measurement of the consumption of the freezing agent is accomplished.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: April 20, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Osamu Ookubo, Tsugio Watanabe