Patents by Inventor Noriyoshi Naito

Noriyoshi Naito 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).

  • Miniature electric motor
    Patent number: 5347187
    Abstract: In a miniature electric motor a hollow cylindrical socket (2) is formed by deep drawing process on a roof plate of a frame (1), and in this socket (2) a bearing housing (4) is tightly fit projecting outwardly and inwardly from its roof plane, and at least one bearing metal (3) is further tightly fitted therein in a manner to project from both ends of the bearing housing (4).By utilizing the draw-worked socket (2) for tightly holding the bearing metal (3), the accuracy of axis or circularity of the bearing hole is assured.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: September 13, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiaki Tsuzaki, Noriyoshi Naito