Patents by Inventor Fumihiko Osawa

Fumihiko Osawa 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).

  • Vibration generating motor
    Patent number: 6661138
    Abstract: The present invention relates a vibration generating motor providing simple and fast assembly, and ready recycling. A motor includes a plurality of rotors around a rotary shaft, a plurality of coil winding portions on respective rotors, and a coil on each respective coil winding portion. At least a two part weight is positioned between selected coil winding portions and has an seperably upper and lower part, allowing weight maximization at low cost while conserving space.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: December 9, 2003
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Fumihiko Osawa, Takashi Osumi, Takeshi Shinoda
  • Vibration generating motor
    Publication number: 20020145347
    Abstract: The present invention relates a vibration generating motor providing simple and fast assembly, and ready recycling. A motor includes a plurality of rotors around a rotary shaft, a plurality of coil winding portions on respective rotors, and a coil on each respective coil winding portion. At least a two part weight is positioned between selected coil winding portions and has an seperably upper and lower part, allowing weight maximization at low cost while conserving space.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 10, 2002
    Inventors: Fumihiko Osawa, Takashi Osumi, Takeshi Shinoda