Patents by Inventor Toshikatsu Omachi

Toshikatsu Omachi 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).

  • Lock using air chambers
    Patent number: 5013184
    Abstract: A lock using lock chambers and lock gates capable of reducing the water consumption in the operations of raising or lowering the boat passing through the lock from one level to another. The lock includes flexible air chambers capable of being inflated with air, located on bases of the lock chambers which are connected by a pipe equipped with a valve for controlling a flow of air between the air chambers.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: May 7, 1991
    Assignees: Toshikatsu Omachi, Foundation of River & Basin Integrated Communications
    Inventor: Toshikatsu Omachi