Patents by Inventor Yuichiro Matsuoka

Yuichiro Matsuoka 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: 7663277
    Abstract: An inner-rotor-type brushless motor includes a bus bar which connects together U-phase, V-phase, and W-phase windings and connects them to output wires. The bus bar includes, as conductive members, three external terminals connected to first ends of the windings and one Y-connection terminal for connecting second ends of the windings together. The external terminals and the Y-connection terminal are disposed on the body of the bus bar such that the Y-connection terminal and the external terminals are located on one side on the circumference of the bus bar body, whereby the bus bar body has a circumferential region where the conductive members are not present. A sensor bard carrying a position detection sensor is attached the bus bar body such that the position detection sensor is located in the circumferential region where the conductive members are not present.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: February 16, 2010
    Assignee: Mabuchi Motor Co., Ltd.
    Inventors: Nobuo Kinoshita, Yuichiro Matsuoka
  • Patent number: 7652402
    Abstract: A plurality of coils wound around a stator magnetic-pole core are connected together and connected to output wires by use of a bus bar. The bus bar having a generally cylindrical body portion is disposed at one axial end of the stator magnetic-pole core, around which the coils are wound such that clearances are formed within magnetic-pole core slots, with an axial clearance formed between the bus bar and the coils. The body portion has such a radial dimension that at least a portion of the clearances within the magnetic-pole core slots is left uncovered. Air holes are formed in the motor housing on opposite sides of the stator magnetic-pole core to thereby form cooling air passages extending through the magnetic-pole core slots.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: January 26, 2010
    Assignee: Mabuchi Motor Co., Ltd.
    Inventors: Nobuo Kinoshita, Yuichiro Matsuoka
  • Publication number: 20090026859
    Abstract: An inner-rotor-type brushless motor includes a bus bar which connects together U-phase, V-phase, and W-phase windings and connects them to output wires. The bus bar includes, as conductive members, three external terminals connected to first ends of the windings and one Y-connection terminal for connecting second ends of the windings together. The external terminals and the Y-connection terminal are disposed on the body of the bus bar such that the Y-connection terminal and the external terminals are located on one side on the circumference of the bus bar body, whereby the bus bar body has a circumferential region where the conductive members are not present. A sensor bard carrying a position detection sensor is attached the bus bar body such that the position detection sensor is located in the circumferential region where the conductive members are not present.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Inventors: Nobuo KINOSHITA, Yuichiro Matsuoka
  • Patent number: 6911795
    Abstract: In an electric motor apparatus of the present invention, both of energized spiral wires 17A and 17B for a first system 18A and a second system 18B cooperate to rotate the rotor 25 in a normal condition, however, when it is happened an abnormal condition in one of the first system and the second system, the energized spiral wires of the other system rotate the rotor 25 so that the present invention can prevent the rotation of the electric motor 14 from stopping just after the abnormal condition in either of the systems to achieve a fail-safe function. Therefore, the present invention can decrease a number of parts in comparison with the conventional apparatus having two actuators to restrain an increase of the cost and to achieve a compact structure.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: June 28, 2005
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventors: Yuichiro Matsuoka, Yoshiyuki Shibata
  • Publication number: 20040113575
    Abstract: In an electric motor apparatus of the present invention, both of energized spiral wires 17A and 17B for a first system 18A and a second system 18B cooperate to rotate the rotor 25 in a normal condition, however, when it is happened an abnormal condition in one of the first system and the second system, the energized spiral wires of the other system rotate the rotor 25 so that the present invention can prevent the rotation of the electric motor 14 from stopping just after the abnormal condition in either of the systems to achieve a fail-safe function. Therefore, the present invention can decrease a number of parts in comparison with the conventional apparatus having two actuators to restrain an increase of the cost and to achieve a compact structure.
    Type: Application
    Filed: December 4, 2003
    Publication date: June 17, 2004
    Applicant: TOYODA KOKI KABUSHIKI KAISHA
    Inventors: Yuichiro Matsuoka, Yoshiyuki Shibata
  • Patent number: 6339751
    Abstract: A circuit design support apparatus partially converts a description of a circuit model to simulate the circuit operation. A register signal replacement section replaces a register signal with a variable in a process related with the register signal of the description and inserts a declaration of the variable in the process instead of a declaration of the register signal in the description. A clock signal simplification section replaces a clock signal with a variable in a clock signal reference process of the description and unifies a clock signal update process to the clock signal reference process in the description.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: January 15, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naomi Takeda, Shozo Isobe, Yuichiro Matsuoka, Masami Aihara, Seiichi Nishio
  • Patent number: 5960182
    Abstract: A hardware verification module performs simulation for hardware verification with input from an RT-level processor model and an RT-level hardware description. All abstraction module abstracts from the RT-level hardware description on a processor input/output instruction operation level to generate an abstracted description describing an instruction-level hardware description. A software verification module performs simulation for software verification with input from an instruction-level processor model and the abstracted description.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: September 28, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuichiro Matsuoka, Masami Aihara