Patents by Inventor Takayuki Morihara

Takayuki Morihara 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).

  • Matrix converter
    Patent number: 10367425
    Abstract: A matrix converter includes a plurality of first bidirectional switches electrically connected to each of input phases of an AC power supply and each of output phases of a load, respectively, and a plurality of second bidirectional switches electrically connected to each of the input phases and each of the output phases, respectively. The first bidirectional switch and the second bidirectional switch are electrically connected in parallel to one of the input phases and one of the output phases.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 30, 2019
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takayuki Morihara, Takahiro Uchino, Masahiro Tsuruta, Shigekatsu Nagatomo, Yuto Kubo
  • Capacitor cover and power conversion device
    Patent number: 10109419
    Abstract: A capacitor cover configured to store a plurality of capacitors of a power conversion device is provided. The capacitor cover includes a first cover including a plurality of types of first contact surfaces configured to be in contact with one side of each surface of the capacitors of plurality of types with different sizes.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 23, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takayuki Morihara, Yuto Kubo, Shigekatsu Nagatomo
  • Capacitor module and matrix convertor
    Patent number: 9985551
    Abstract: A capacitor module applicable in a matrix convertor includes a module cover and a plurality of terminals. The module cover houses a plurality of AC capacitors. The plurality of terminals are disposed at least on a first side and a second side of the module cover in a widthwise direction of the module cover, and protrude from a bottom surface of the module cover.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: May 29, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takayuki Morihara, Takahiro Uchino, Masahiro Tsuruta, Shigekatsu Nagatomo, Yuto Kubo
  • MATRIX CONVERTER
    Publication number: 20170077828
    Abstract: A matrix converter includes a plurality of first bidirectional switches electrically connected to each of input phases of an AC power supply and each of output phases of a load, respectively, and a plurality of second bidirectional switches electrically connected to each of the input phases and each of the output phases, respectively. The first bidirectional switch and the second bidirectional switch are electrically connected in parallel to one of the input phases and one of the output phases.
    Type: Application
    Filed: November 4, 2016
    Publication date: March 16, 2017
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takayuki MORIHARA, Takahiro UCHINO, Masahiro TSURUTA, Shigekatsu NAGATOMO, Yuto KUBO
  • CAPACITOR COVER AND POWER CONVERSION DEVICE
    Publication number: 20170018355
    Abstract: This disclosure discloses a capacitor cover configured to store a plurality of capacitors of a power conversion device. The capacitor cover includes a first cover including a plurality of types of first contact surfaces configured to be in contact with one side of each surface of the capacitors of plurality of types with different sizes.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takayuki MORIHARA, Yuto KUBO, Shigekatsu NAGATOMO
  • CAPACITOR MODULE AND MATRIX CONVERTOR
    Publication number: 20150372609
    Abstract: A capacitor module applicable in a matrix convertor includes a module cover and a plurality of terminals. The module cover houses a plurality of AC capacitors. The plurality of terminals are disposed at least on a first side and a second side of the module cover in a widthwise direction of the module cover, and protrude from a bottom surface of the module cover.
    Type: Application
    Filed: June 19, 2015
    Publication date: December 24, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takayuki MORIHARA, Takahiro UCHINO, Masahiro TSURUTA, Shigekatsu NAGATOMO, Yuto KUBO
  • Wiring board and power conversion device
    Patent number: 8537550
    Abstract: A wiring board includes a conductor plate including a wiring portion and an electrode portion connected to a power conversion semiconductor element, a liquid-cooling pipe mounted near the conductor plate and causing a cooling liquid to be supplied therethrough, and an insulating resin material arranged at least between the conductor plate and the liquid-cooling pipe.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: September 17, 2013
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Masato Higuchi, Yasuhiko Kawanami, Katsushi Terazono, Koji Higashikawa, Akira Sasaki, Takayuki Morihara, Takashi Aoki, Tetsuya Ito, Yukihisa Nakabayashi, Tasuku Isobe, Kiyonori Koguma
  • WIRING BOARD AND POWER CONVERSION DEVICE
    Publication number: 20120236500
    Abstract: A wiring board includes a conductor plate including a wiring portion and an electrode portion connected to a power conversion semiconductor element, a liquid-cooling pipe mounted near the conductor plate and causing a cooling liquid to be supplied therethrough, and an insulating resin material arranged at least between the conductor plate and the liquid-cooling pipe.
    Type: Application
    Filed: December 19, 2011
    Publication date: September 20, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Masato Higuchi, Yasuhiko Kawanami, Katsushi Terazono, Koji Higashikawa, Akira Sasaki, Takayuki Morihara, Takashi Aoki, Tetsuya Ito, Yukihisa Nakabayashi, Tasuku Isobe, Kiyonori Koguma
  • POWER CONVERTER
    Publication number: 20120235162
    Abstract: This power converter includes a power-conversion semiconductor element, an electrode conductor having a substantially flat upper end surface, and a sealant. The sealant allows the substantially flat upper end surface of the electrode conductor to be exposed at an upper surface of the sealant, and provides electrical connection with an external device at the upper end surface of the exposed electrode conductor.
    Type: Application
    Filed: December 19, 2011
    Publication date: September 20, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Tasuku ISOBE, Yasuhiko Kawanami, Yukihisa Nakabayashi, Masato Higuchi, Koji Higashikawa, Katsushi Terazono, Akira Sasaki, Takayuki Morihara, Takashi Aoki, Tetsuya Ito, Kiyonori Koguma
  • Inverter controller
    Patent number: D561095
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: February 5, 2008
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Masafumi Sakai, Kenji Isomoto, Shigekatsu Nagatomo, Takayuki Morihara
  • Inverter controller
    Patent number: D562233
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: February 19, 2008
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Kenji Isomoto, Shigekatsu Nagatomo, Koji Nuki, Takayuki Morihara
  • Inverter controller
    Patent number: D562234
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: February 19, 2008
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Takayuki Morihara, Shigekatsu Nagatomo, Koji Nuki, Kenji Isomoto