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Yushi Koyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    INFORMATION OUTPUT DEVICE
    • Publication number 20220014837
    • Publication date Jan 13, 2022
    • SONY GROUP CORPORATION
    • KOHEI KIKUCHI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    POWER CONVERSION APPARATUS
    • Publication number 20200350832
    • Publication date Nov 5, 2020
    • Toshiba Infrastructure Systems & Solutions Corporation
    • Koji MAKI
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    HEADPHONES
    • Publication number 20190394555
    • Publication date Dec 26, 2019
    • SONY CORPORATION
    • TOMOHIRO ITO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SEMICONDUCTOR SWITCH AND POWER CONVERSION APPARATUS
    • Publication number 20160134098
    • Publication date May 12, 2016
    • Kabushiki Kaisha Toshiba
    • Hiroshi MOCHIKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    REACTIVE POWER COMPENSATOR
    • Publication number 20140133198
    • Publication date May 15, 2014
    • Yushi Koyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SEMICONDUCTOR SWITCH AND POWER CONVERSION APPARATUS
    • Publication number 20130134958
    • Publication date May 30, 2013
    • Hiroshi MOCHIKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    GRID-TIE INVERTER
    • Publication number 20120275201
    • Publication date Nov 1, 2012
    • Kabushiki Kaisha Toshiba
    • Yushi Koyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SYSTEM INTERCONNECTION INVERTER
    • Publication number 20110216568
    • Publication date Sep 8, 2011
    • Kabushiki Kaisha Toshiba
    • Yushi Koyama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER