Patents by Inventor Kinya Kitagawa

Kinya Kitagawa 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).

  • Windmill with controller for controlling rotor RPM
    Patent number: 4653982
    Abstract: A windmill construction embodying an improved arrangement for driving a load through a centrifugal clutch and for adjusting the pitch angle of the blades. The adjusting mechanism is responsive to speed so as to increase the pitch angle as the speed increases and further incorporates a latch mechanism for latching the blades in a maximum feathering pitch angle and for introducing a hysteresis effect into the mechanism.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: March 31, 1987
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Noboru Kojima, Kinya Kitagawa