Patents by Inventor Shigetaka Hattori

Shigetaka Hattori 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).

  • Patent number: 5499791
    Abstract: A machine with vibration source includes a frame for carrying a vibration source such as a motor. A housing is attached to a bottom of the frame, in which a sphere made of a rigid material is housed rotation free in a manner that a portion of the sphere is projected from an opening at the bottom of the housing. The surface of a plate made of a rigid material contacts the portion of the sphere projecting from the housing and the plate is surrounded by a member of an elastic material. The elastic member has an upwardly extending portion which surrounds the housing, and therefore, the elastic member controls the relative position between the sphere and the plate, and resultingly, rolling of the machine can be suppressed. In addition, since the sphere can be rotated on the plate, horizontal vibration of the machine is absorbed to be suppressed. Furthermore, since the sphere is supported by the plate and the plate is supported by a floor via the elastic member, vertical vibration of the machine is also suppressed.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: March 19, 1996
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kenji Nakagawa, Koichi Yoshizaki, Tadashi Nukaga, Yoshikazu Banba, Shigetaka Hattori, Kentaro Mochizuki