Patents by Inventor Mitsumaro Koike

Mitsumaro Koike 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).

  • Apparatus for continuous supply of fine powder, viscous fluid or the like at a constant rate
    Patent number: 4836417
    Abstract: An apparatus for continuously supplying fine powder at a constant rate comprises a hopper for holding the fine powder, a first piezoelectric transducer disposed on the diaphragm for supplying vibration to cause discharge of the fine powder therefrom, a second piezoelectric transducer for detecting change in the frequency of vibration of the hopper with change in the amount of fine powder contained in the hopper and feeding the detected signal back to a driver for the first piezoelectric transducer so as to supply vibration to the hopper at a frequency determined on the basis of the amount of fine powder contained in the hopper.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: June 6, 1989
    Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and Industry
    Inventors: Futoshi Uchiyama, Koichi Tsukamoto, Tomoyoshi Kurashige, Kaoru Furusawa, Mitsumaro Koike