Patents by Inventor Masataka Madea

Masataka Madea 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).

  • Image forming apparatus having particle modulator
    Patent number: 5311266
    Abstract: An image forming apparatus is low priced and has a compact size. The apparatus is further capable of easily controlling toner particles such that the toner particles pass through individual apertures without a high-priced high-voltage A.C. power supply and a high-priced compressor. A driving roller and a shaft-type steel support preferably having a diameter of about 3 mm are arranged in a toner case so as to be parallel to each other. The driving roller and the support are bound by a belt preferably made of silicone rubber so as to be under tension. The belt is preferably formed about 200 mm thick, and a piezoelectric vibrator for vibrating the support is provided on the one end of the support.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: May 10, 1994
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Masataka Madea