Patents by Inventor Yoshiki Takabayashi

Yoshiki Takabayashi 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).

  • Power-system short-circuit capacity monitoring method and system thereof
    Patent number: 10175304
    Abstract: Synchronous measuring terminals 5 synchronously measure phasor quantity D101 of a voltage/current at respective measurement points 1 and 2. A data-set creating block 91 of a short-circuit capacity monitoring device 7 creates, for each measurement cycle ?t, a data set D102 containing n pieces of data based on the phasor quantities D101 of voltage and current. A phase correcting block 92 performs a phase correction on the phasor quantity using the data set D102 to create a data set D102?, and a backward impedance estimating block 93 estimates a backward impedance D103 using the data set D102?.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: January 8, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoko Kosaka, Takenori Kobayashi, Yoshiki Takabayashi, Kazuya Omata, Verma Suresh Chand, Yoshihiko Wazawa, Yoshiki Nakachi
  • POWER-SYSTEM SHORT-CIRCUIT CAPACITY MONITORING METHOD AND SYSTEM THEREOF
    Publication number: 20150120228
    Abstract: Synchronous measuring terminals 5 synchronously measure phasor quantity D101 of a voltage/current at respective measurement points 1 and 2. A data-set creating block 91 of a short-circuit capacity monitoring device 7 creates, for each measurement cycle ?t, a data set D102 containing n pieces of data based on the phasor quantities D101 of voltage and current. A phase correcting block 92 performs a phase correction on the phasor quantity using the data set D102 to create a data set D102?, and a backward impedance estimating block 93 estimates a backward impedance D103 using the data set D102?.
    Type: Application
    Filed: April 5, 2013
    Publication date: April 30, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yoko Kosaka, Takenori Kobayashi, Yoshiki Takabayashi, Kazuya Omata, Verma Suresh Chand, Yoshihiko Wazawa, Yoshiki Nakachi