Patents by Inventor Hideo Ooishi

Hideo Ooishi 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 for the transportation of a particulate material at controlled rate
    Patent number: 4758117
    Abstract: The invention provides an efficient method for controlling the flow rate of a particulate material through a pneumatic transportation pipe at a preset value with a high accuracy and rapid response to an external disturbance added to the system by controlling the flow rate of the booster gas. Different from conventional methods in which the flow rate of the booster gas is controlled with the feedforward factor of the variation in the actual flow rate of the particulate material, the inventive method utilizes the variation in the pressure in the receiving unit as the feedback to control the flow rate of the booster gas so that the above mentioned advantages are obtained in the accuracy of control and rapidness of the response to an external disturbance.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: July 19, 1988
    Assignees: Kawasaki Steel Corp., Denka Consultant & Engineering Co., Ltd.
    Inventors: Yunosuke Maki, Youichi Watanabe, Yasuhiko Sakaguchi, Kazuaki Tanaka, Yuichi Kobayashi, Hideo Ooishi, Minoru Kobayashi