Patents by Inventor Yusuke YANAGIHASHI

Yusuke YANAGIHASHI 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).

  • Current input converter
    Patent number: 9275793
    Abstract: According to one embodiment, a current input converter includes a first metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one end of a primary-side coil of the transformer, and connects the terminal table and the one end of the primary-side coil of the transformer to each other, and a second metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one other end of the primary-side coil of the transformer, and connects the terminal table and the other end of the primary-side coil of the transformer to each other.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: March 1, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yusuke Yanagihashi, Hiroyuki Shirakawa, Toshio Tanaka, Hiroyuki Maehara, Noriyoshi Suga, Itsuo Shuto
  • Protection relay
    Patent number: 8861163
    Abstract: According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: October 14, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki Shirakawa, Yusuke Yanagihashi, Hiroyuki Maehara, Toshio Tanaka, Noriyoshi Suga, Itsuo Shuto
  • CURRENT INPUT CONVERTER
    Publication number: 20120229122
    Abstract: According to one embodiment, a current input converter includes a first metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one end of a primary-side coil of the transformer, and connects the terminal table and the one end of the primary-side coil of the transformer to each other, and a second metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one other end of the primary-side coil of the transformer, and connects the terminal table and the other end of the primary-side coil of the transformer to each other.
    Type: Application
    Filed: May 21, 2012
    Publication date: September 13, 2012
    Inventors: Yusuke YANAGIHASHI, Hiroyuki SHIRAKAWA, Toshio TANAKA, Hiroyuki MAEHARA, Noriyoshi SUGA, Itsuo SHUTO
  • PROTECTION RELAY
    Publication number: 20120229946
    Abstract: According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.
    Type: Application
    Filed: May 21, 2012
    Publication date: September 13, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroyuki SHIRAKAWA, Yusuke Yanagihashi, Hiroyuki Maehara, Toshio Tanaka, Noriyoshi Suga, Itsuo Shuto