Patents by Inventor Noboru Setoya

Noboru Setoya 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: 4607204
    Abstract: A five (5) phase stepping motor including a rotor rotated by electromagnetic field produced in a stator having coils, the first to the fifth inclusive, wound thereon and excited by driving signals in five phases while individually responding to each of these signals, in which said coils are wound on the stator so that a groups of the 1st, 3rd, and 5th coils and the other group of the 2nd and 4th coils are opposite to each other in phase and all the coils are connected to each other at one end, with the other ends each serving as an input terminal.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: August 19, 1986
    Assignee: Mycom Kabushiki Kaisha
    Inventor: Noboru Setoya
  • Patent number: 4603287
    Abstract: One end of each of coils of a group of phases A, C, and E among coils of phases A, B, C, D, and E which are wound in turn around stator poles of the 5-phase stepping motor is connected to one end of each of coils of another group of phases B and D so that coils of a group of phases A, C, and E are in antiphase with respect to coils of another group of phases B and D. Two or three of the abovesaid five phases are suitably selected to be excited in parallel and further the other two or three phases are excited in parallel so as to be connected in series with the former two or three phases excited in parallel. In this way, the 5-phase stepping motor is driven by selectively exciting the phases and thereby sequentially changing the direction of a resultant vector.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: July 29, 1986
    Assignee: Mycom Kabashiki Kaisha
    Inventor: Noboru Setoya