Patents by Inventor Osamu SAKUCHI

Osamu SAKUCHI 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: 9573489
    Abstract: Feeder sections to be a target of interchange are to be expanded in order to improve the effect of power interchange between feeders. A control device for railway power conditioner is connected to a first feeder connected to a load side of a transformer in a first railway substation including a transformer receiving power from a power grid, and a second feeder connected to a load side of a transformer in a second railway substation including a transformer receiving power from a power grid, and decides an amount of power interchanged between the first and second feeders. The control device decides the amount of power interchanged between the first and second feeders, using the received power in the first railway substation and power on the first feeder, and the received power in the second railway substation and power on the second feeder.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: February 21, 2017
    Assignees: Hitachi, Ltd., East Japan Railway Company
    Inventors: Yasuhiro Nakatsuka, Yasuhiro Imazu, Osamu Sakuchi, Masaya Ichinose, Yasuhiro Kiyofuji, Akira Bando, Jun Narushima, Toshihiko Usui, Naomi Sato, Masaki Uchita, Rikiya Inoue, Masahiko Honda
  • Patent number: 9219426
    Abstract: A switching element of a power converter generates a low voltage, using a current flowing in the power converter, and supplies a power to drive itself. A switching element of a power converter for conversion from direct current into alternate current or from alternate current into direct current includes: a terminal and a terminal which are used in building the switching element itself in the power converter; a capacitor, a high-side controllable switch and a low-side controllable switch enabling outputting the voltage of the capacitor, the voltage being output between the terminal and the terminal, and a self-supply power source for supplying a power to drive the bi-directional chopper switching element itself, using a current flowing in the capacitor.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: December 22, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Takayoshi Yamamoto, Masaya Ichinose, Akira Bando, Keiichi Yamashita, Shigenori Inoue, Toru Yoshihara, Yoshio Eguchi, Osamu Sakuchi, Shuji Katoh, Tomomichi Ito
  • Publication number: 20140152087
    Abstract: Feeder sections to be a target of interchange are to be expanded in order to improve the effect of power interchange between feeders. A control device for railway power conditioner is connected to a first feeder connected to a load side of a transformer in a first railway substation including a transformer receiving power from a power grid, and a second feeder connected to a load side of a transformer in a second railway substation including a transformer receiving power from a power grid, and decides an amount of power interchanged between the first and second feeders. The control device decides the amount of power interchanged between the first and second feeders, using the received power in the first railway substation and power on the first feeder, and the received power in the second railway substation and power on the second feeder.
    Type: Application
    Filed: November 15, 2013
    Publication date: June 5, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Yasuhiro NAKATSUKA, Yasuhiro IMAZU, Osamu SAKUCHI, Masaya ICHINOSE, Yasuhiro KIYOFUJI, Akira BANDO, Jun NARUSHIMA