Patents by Inventor Hidenobu Soejima

Hidenobu Soejima 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: 4714850
    Abstract: Relating to a stepping motor to be used for paper feedings or type head movements in office automation apparatus such as printers or typewriters.A stator (1) is constituted by moulding stator yokes (2), (3), (4), and (5) monolithically by resin with using their inner radius as their reference, and one side of a rotary shaft (11a) of a rotor (11) is supported by a bearing (12a) of a bearing holder member (1a) which is provided on the one-side end plane of a cylinder member of sad stator (1), and at the same time, a bracket (14) holding a bearing (12b) supporting one side of the rotary shaft (11a) of the rotor (11) is inserted into an opening side inner part of said cylinder member.By the above constitution, centering of the rotary shaft can be carried out easily and the gap between the rotor and the inner radius of the stator can be maintained also easily, then as a result of it, low-cost and high-quality stepping motors can be offered.
    Type: Grant
    Filed: July 8, 1986
    Date of Patent: December 22, 1987
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuhiro Akiba, Masato Namba, Seiji Kikuchi, Hidenobu Soejima