Patents by Inventor Yu KAWANO

Yu KAWANO 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: 9640470
    Abstract: A common connecting section for connection to terminals at the same potential in circuits is placed outside a mold section to allow a reduction in size of a semiconductor module 1. Since the common connecting section is a portion of a lead frame which would be placed within such a mold section in a conventional semiconductor module, the mold section can be reduced in size as compared with the conventional one, thereby reducing the amount of mold resin and the material cost.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: May 2, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yu Kawano, Akihiko Mori, Yoshihito Asao
  • Publication number: 20170018486
    Abstract: A semiconductor module can be realized, which is formed by mounting an electronic component and a bus bar by solder on a lead frame including a plurality of terminals, wherein a solder flow suppressing section capable of restricting a direction of flow of solder on the lead frame is formed in the vicinity of the solder portion of the component mounted by solder, and by this configuration, positional deviation, such as rotation or movement of the mounted component, is suppressed and the size of the module can be made compact.
    Type: Application
    Filed: May 9, 2014
    Publication date: January 19, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shunsuke FUSHIE, Yu KAWANO, Yoshihito ASAO
  • Publication number: 20160373050
    Abstract: A control apparatus for an AC rotary machine includes voltage application units 3, 4 for applying voltages respectively to two sets of three-phase windings of AC rotary machine 1, control unit 5 that controls the voltage application units 3, 4, and fault detection units 6, 7 that output fault detection signals to control unit 5 varying in accordance with the ground short fault and the power short fault. When detecting, control unit 5 outputs a voltage command to faulty voltage application unit 3, 4 to set voltages of respective phases of the three-phase windings at a negative electrode side potential V? of DC power supply 2, and when detecting a power short fault, control unit 5 outputs a voltage command to set the voltages of the respective phases of the three-phase windings at a positive electrode side potential V+ of DC power supply 2.
    Type: Application
    Filed: April 23, 2014
    Publication date: December 22, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tatsuya MORI, Isao KEZOBO, Yoshihiko KIMPARA, Masaya SAKAI, Akira FURUKAWA, Yu KAWANO, Rei ARAKI
  • Publication number: 20160351480
    Abstract: Provided is a semiconductor module having an integrated insulating sheet structure, wherein detachment of the insulating sheet can be suppressed and improved reliability of the semiconductor module is achieved, by adopting a structure in which at least one location of the insulating sheet is sunken inside a mold, and a sealing resin body and the insulating sheet of the semiconductor module form a protrusion.
    Type: Application
    Filed: March 28, 2014
    Publication date: December 1, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shunsuke Fushie, Yu Kawano, Yoshihito Asao, Akihiko Mori
  • Publication number: 20160329774
    Abstract: A board includes a separating zone in an area closer to the edge than to the center of the board, the separating zone including one elongated through hole. A first group of electronic components that is a source of heat or electric noise is placed in a first area on the center side with respect to the separating zone of the board. On the other hand, a second group of electronic components from which influence of heat or electric noise from other components needs to be eliminated to a maximum extent is placed in a second area on the edge side with respect to the separating zone of the board.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 10, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Rei ARAKI, Yu KAWANO, Yoshihito ASAO
  • Publication number: 20160231142
    Abstract: According to a motor rotational angle detection device which includes a plurality of motor rotational angle detection units which detect a rotational angle of a motor, and a normal angle decision device which includes a motor rotational angle information item and decides a normal motor rotational angle, in which when a difference is caused between output values of the plurality of motor rotational angle detection units, the normal angle decision device respectively compares the output value of each of the motor rotational angle detection units with the motor rotational angle information item included in the normal angle decision device, and identifies the normal motor rotational angle detection unit, and decides the normal motor rotational angle.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 11, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yu KAWANO, Yoshihito ASAO
  • Publication number: 20160148862
    Abstract: A common connecting section for connection to terminals at the same potential in circuits is placed outside a mold section to allow a reduction in size of a semiconductor module 1. Since the common connecting section is a portion of a lead frame which would be placed within such a mold section in a conventional semiconductor module, the mold section can be reduced in size as compared with the conventional one, thereby reducing the amount of mold resin and the material cost.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 26, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yu KAWANO, Akihiko MORI, Yoshihito ASAO
  • Publication number: 20140350791
    Abstract: A vehicle steering control apparatus includes a power-supply supply portion 101 supplying a power supply to a micro-controller 102, an inverter 104 supplying power to drive a motor 5, a gate driver 103 controlling the inverter 104, a motor relay 105 opening and closing a current-passing path between the inverter 104 and the motor 5, a motor relay driver 106 controlling the motor relay 105, and a monitoring control portion A 108a and a monitoring control portion B 108b monitoring a power-supply voltage of the power-supply supply portion 101. Because multiple monitoring control portions are included, even in the event of an inconvenience in either one of the monitoring control portions A 108a and B 108b, the motor 5 can be stopped quickly in a reliable manner when the power-supply voltage goes out of a normal operation range.
    Type: Application
    Filed: December 5, 2011
    Publication date: November 27, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masaki Matsushita, Takayuki Kifuku, Hiroyuki Kozuki, Masatoshi Saito, Yu Kawano
  • Patent number: 8810175
    Abstract: Provided is a motor control device including a main calculation unit (101), which takes a first operation state for controlling a brushless motor (5), and a second operation state for stopping the motor control, and a sub calculation unit (102) for monitoring the main calculation unit (101) by means of a first monitoring unit (106) in the first state, for calculating a motor rotation angle in the second state, thereby enabling continuous calculation of the motor rotation angle even when the motor control is stopped, for carrying out monitoring the sub calculation unit (102) by means of second monitoring unit (201), thereby securing reliability, and for calculating the motor rotation angle in a second calculation cycle in the second operation state, the second calculation cycle being longer than a first calculation cycle in the first operation state, thereby reducing a current consumption.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: August 19, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yu Kawano, Masatoshi Saito, Takayuki Kifuku
  • Publication number: 20120273290
    Abstract: Provided is a motor control device including a main calculation unit (101), which takes a first operation state for controlling a brushless motor (5), and a second operation state for stopping the motor control, and a sub calculation unit (102) for monitoring the main calculation unit (101) by means of a first monitoring unit (106) in the first state, for calculating a motor rotation angle in the second state, thereby enabling continuous calculation of the motor rotation angle even when the motor control is stopped, for carrying out monitoring the sub calculation unit (102) by means of second monitoring unit (201), thereby securing reliability, and for calculating the motor rotation angle in a second calculation cycle in the second operation state, the second calculation cycle being longer than a first calculation cycle in the first operation state, thereby reducing a current consumption.
    Type: Application
    Filed: October 5, 2011
    Publication date: November 1, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yu KAWANO, Masatoshi Saito, Takayuki Kifuku