Patents by Inventor Akifumi Nitta

Akifumi Nitta 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).

  • Remote control apparatus marine vessels having dual propeller shafts
    Patent number: 4088087
    Abstract: Fluid pressure operable remote control apparatus for a marine vessel equipped with a dual shaft and propeller propulsion system and fluid pressure operable operator controllers for coordinating operation respective valve devices and servo-positioners, whereby the desired operating disposition of the shafts and propellers, relative to each other, is effected for providing the desired speed and directional movement of the vessel.
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: May 9, 1978
    Assignee: The Nippon Air Brake Co., Ltd.
    Inventor: Akifumi Nitta