Patents by Inventor Fumio Uchiyama

Fumio Uchiyama 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).

  • Magnetic force driving apparatus with rotary member and reciprocating member
    Patent number: 6274959
    Abstract: A driving apparatus includes a rotatable disk. The rotatable disk has a first magnet alley including a plurality of first permanent magnets arranged along a periphery of the disk. A reciprocal device has a second magnet alley that includes a plurality of second permanent magnets in association with the first permanent magnets. Each second permanent magnet is movable between two positions to attract and repel each first permanent magnet.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: August 14, 2001
    Inventor: Fumio Uchiyama