Patents by Inventor Takao Koga

Takao Koga 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).

  • Device for preventing reverse run of carrier of trolley conveyor
    Patent number: 5690032
    Abstract: A reverse run prevention device is provided for use in a trolley conveyor having carriers adapted to run and stop on a rail via engagement and disengagement with pusher dogs on a drive chain. The reverse run prevention device includes an over-running clutch built in a running roller of each carrier to prevent reverse run of the carrier. The overrunning clutch prevents the running roller from rotating via reverse direction where a succeeding carrier is released from the drive chain following its coming into contact with a preceding carrier while the motion of the carriers is being stopped.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: November 25, 1997
    Assignee: Tsubakimoto Chain Co.
    Inventors: Takao Koga, Shozo Adachi
  • Method for producing boehmite
    Patent number: 5019367
    Abstract: A method for producing boehmite, which comprises subjecting aluminum hydroxide dispersed in water to treatment under heat and pressure in the presence of maleic acid and/or malic acid.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: May 28, 1991
    Assignees: Mitsubishi Kasei Corporation, Kasei Naoetsu Industries Limited
    Inventors: Yasuo Oguri, Takao Koga, Toshio Itoh