Patents by Inventor Masanori Eshima

Masanori Eshima 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).

  • Variable vibrating motor
    Patent number: 4034246
    Abstract: A variable vibration motor includes a rotor shaft having a fixed weight and a movable weight mounted thereon. Adjustable means are provided on the motor casing for adjusting the movable weight to various rotational positions about the rotor shaft, and manually operable means outside of the motor casing are provided for adjusting the adjustable means and thereby vary the rotational position of the movable weight when the motor is running.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: July 5, 1977
    Inventors: Akinobu Nakashima, Masanori Eshima