Patents by Inventor Hiroyuki Sonohara

Hiroyuki Sonohara 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: 7880359
    Abstract: A coil member such as a coil bobbin may include a cylindrical drum part around which a coil is to be wound in a circular shape. The cylindrical drum part is formed by two molding dies and a flat face part is formed on an outer peripheral face of the cylindrical drum part so that a space part is formed between an innermost circumferential face of the coil to be wound and the flat face part. The flat face part is formed so that the two molding dies are separated without pressing the outer peripheral face of the cylindrical drum part, and a joining part on the drum part which is formed by the two molding dies is located on the flat face part. The coil member may be only a coil bobbin, a coil bobbin with a terminal part, or a coil bobbin which is integrated with a stator core.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: February 1, 2011
    Assignee: Nidec Sankyo Corporation
    Inventor: Hiroyuki Sonohara
  • Patent number: 7635935
    Abstract: A motor may include a bearing made of resin for rotatably supporting one end part of the rotor shaft, and an urging member attached to a bearing holder and abutted with a pressurization face of the bearing to urge the bearing toward a side of the rotor shaft. A molding material injection gate trace (projection) which has been used when the bearing is resin-molded is positioned at a center portion of the pressurization face. The molding material injection gate trace may be positioned in a recessed part which is formed at a roughly center portion of the pressurization face of the bearing. Further, the urging member may include an urging piece which is formed by cutting a center portion of a metal plate in a ring shape and an opening part is formed in the urging piece.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: December 22, 2009
    Assignee: Nidec Sankyo Corporation
    Inventors: Hiroyuki Sonohara, Takeyoshi Miyashita
  • Publication number: 20090206685
    Abstract: A motor device may include a motor main body having a stator portion and a rotary shaft having a lead screw portion projecting from the stator portion. The motor frame may have a rotary shaft support portion supporting an end of the rotary shaft on an output side and a stator support portion opposed to the rotary shaft support portion and fixed to the stator portion. An engaging member is engaged with the lead screw portion and movable in an axial direction of the rotary shaft. The engaging member is provided with two opposing faces respectively opposed to the rotary shaft support portion and the stator support portion. Positioning sections are formed on both the rotary shaft support portion and the stator support portion or on the two opposing faces of the engaging member for determining an original position for the engaging member to move in the axial direction.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 20, 2009
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Hiroyuki Sonohara
  • Publication number: 20090206690
    Abstract: A motor unit for use with a motor-driven device may include a motor main body, having a stator and a turning shaft protruding from the stator; and a mounting plate for installing the motor main body on the motor driven device to which driving power of the motor main body is transmitted. The mounting plate may be structured by cutting a metal plate, and the mounting plate may include a tabular base plate and a stator support The tabular base plate may have a connecting section for connection to the motor-driven device, and the stator support rises from the tabular base plate and may be fixed to the stator.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 20, 2009
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Hiroyuki SONOHARA
  • Patent number: 7442095
    Abstract: A motor may include a coil bobbin having a drum part around which a winding is provided, a terminal block formed on an outer periphery of the coil bobbin, at least a pair of terminal pins which are protruded from a first wall face of the terminal block, and a groove part formed in the first wall face of the terminal block and is opened to a second wall face of the terminal block that is perpendicular to the first wall face. Both ends of the winding are respectively bound to a pair of the terminal pins from the second wall face side through the groove part of the terminal block. A stator core may be utilized instead of the coil bobbin. In this case, the terminal block may be fitted to the stator core.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: October 28, 2008
    Assignee: Nidec Sankyo Corporation
    Inventor: Hiroyuki Sonohara
  • Publication number: 20080238239
    Abstract: A coil member such as a coil bobbin may include a cylindrical drum part around which a coil is to be wound in a circular shape. The cylindrical drum part is formed by two molding dies and a flat face part is formed on an outer peripheral face of the cylindrical drum part so that a space part is formed between an innermost circumferential face of the coil to be wound and the flat face part. The flat face part is formed so that the two molding dies are separated without pressing the outer peripheral face of the cylindrical drum part, and a joining part on the drum part which is formed by the two molding dies is located on the flat face part. The coil member may be only a coil bobbin, a coil bobbin with a terminal part, or a coil bobbin which is integrated with a stator core.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 2, 2008
    Inventor: Hiroyuki Sonohara
  • Patent number: 7348696
    Abstract: A stepping motor comprises a stator core, a drive coil which is attached to the stator core and a terminal block having a plurality of terminal pins to be wound with the terminals of the drive coil windings. The stator core and terminal block have respective fitting parts. The fitting part of the terminal block is fitted to the fitting part of the stator core. A gap is provided between the terminal block and the drive coil.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: March 25, 2008
    Assignee: NIDEC Sankyo Corporation
    Inventors: Hiroyuki Sonohara, Shinichi Utsumi
  • Publication number: 20070224858
    Abstract: A motor may include a coil bobbin having a drum part around which a winding is provided, a terminal block formed on an outer periphery of the coil bobbin, at least a pair of terminal pins which are protruded from a first wall face of the terminal block, and a groove part formed in the first wall face of the terminal block and is opened to a second wall face of the terminal block that is perpendicular to the first wall face. Both ends of the winding are respectively bound to a pair of the terminal pins from the second wall face side through the groove part of the terminal block. A stator core may be utilized instead of the coil bobbin. In this case, the terminal block may be fitted to the stator core.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 27, 2007
    Inventor: Hiroyuki Sonohara
  • Publication number: 20070222313
    Abstract: A motor may include a bearing made of resin for rotatably supporting one end part of the rotor shaft, and an urging member attached to a bearing holder and abutted with a pressurization face of the bearing to urge the bearing toward a side of the rotor shaft. A molding material injection gate trace (projection) which has been used when the bearing is resin-molded is positioned at a center portion of the pressurization face. The molding material injection gate trace may be positioned in a recessed part which is formed at a roughly center portion of the pressurization face of the bearing. Further, the urging member may include an urging piece which is formed by cutting a center portion of a metal plate in a ring shape and an opening part is formed in the urging piece.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 27, 2007
    Inventors: Hiroyuki Sonohara, Takeyoshi Miyashita
  • Publication number: 20060261684
    Abstract: A stepping motor comprises a stator core, a drive coil which is attached to the stator core and a terminal block having a plurality of terminal pins to be wound with the terminals of the drive coil windings. The stator core and terminal block have respective fitting parts. The fitting part of the terminal block is fitted to the fitting part of the stator core. A gap is provided between the terminal block and the drive coil.
    Type: Application
    Filed: March 14, 2006
    Publication date: November 23, 2006
    Inventors: Hiroyuki Sonohara, Shinichi Utsumi