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Takehiko Yamakawa

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  • Osaka, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    POWER CONVERSION APPARATUS CAPABLE OF CONTROLLING POWER CONVERSION...
    • Publication number 20240088793
    • Publication date Mar 14, 2024
    • Panasonic Intellectual Property Management Co., Ltd.
    • Takehiko YAMAKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    TRANSFORMER DEVICE PROVIDED WITH TWO CORES AND COOLING DEVICE FOR A...
    • Publication number 20240071678
    • Publication date Feb 29, 2024
    • Panasonic Intellectual Property Management Co., Ltd.
    • Akira KATO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRIC POWER CONVERSION APPARATUS CAPABLE OF CONTROLLING POWER CO...
    • Publication number 20240055995
    • Publication date Feb 15, 2024
    • Panasonic Intellectual Property Management Co., Ltd.
    • Takehiko YAMAKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTROMAGNETIC RELAY
    • Publication number 20230207243
    • Publication date Jun 29, 2023
    • Panasonic Intellectual Property Management Co., Ltd.
    • TAKEHIKO YAMAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    TRANSFORMER INCLUDING FIRST AND SECOND WINDINGS, AND FIRST AND SECO...
    • Publication number 20230028214
    • Publication date Jan 26, 2023
    • Panasonic Intellectual Property Management Co., Ltd.
    • Takehiko YAMAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    POWER CONVERTER APPARATUS CONVERTING INPUT POWER INTO OUTPUT POWER...
    • Publication number 20220166329
    • Publication date May 26, 2022
    • Akira KATO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTROMAGNETIC RELAY AND CONTROL METHOD THEREOF
    • Publication number 20210217571
    • Publication date Jul 15, 2021
    • Panasonic Intellectual Property Management Co., Ltd.
    • Akira KATO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTROMAGNETIC RELAY
    • Publication number 20210027964
    • Publication date Jan 28, 2021
    • Panasonic Intellectual Property Management Co., Ltd.
    • TAKEHIKO YAMAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    MAGNETIC DEVICE INCLUDING WINDING AND INSULATORS, AND POWER CONVERS...
    • Publication number 20200357549
    • Publication date Nov 12, 2020
    • Panasonic Intellectual Property Management Co., Ltd.
    • YOSHITAKE NAKAGAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC POWER CONVERSION DEVICE
    • Publication number 20180269796
    • Publication date Sep 20, 2018
    • Panasonic Intellectual Property Management Co., Ltd.
    • MASAHIRO YAMAOKA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ROTARY MACHINE INCLUDING ROTOR, STATOR, AND INSERTION MEMBER
    • Publication number 20170338700
    • Publication date Nov 23, 2017
    • Panasonic Intellectual Property Management Co., Ltd.
    • AKIRA KATO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    MAGNETIC DEVICE INCLUDING WINDING AND INSULATORS, AND POWER CONVERS...
    • Publication number 20160365804
    • Publication date Dec 15, 2016
    • Panasonic Intellectual Property Management Co., Ltd.
    • YOSHITAKE NAKAGAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRIC POWER CONVERSION DEVICE
    • Publication number 20160261195
    • Publication date Sep 8, 2016
    • Panasonic Intellectual Property Management Co., Ltd.
    • MASAHIRO YAMAOKA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER CONVERTER
    • Publication number 20160172982
    • Publication date Jun 16, 2016
    • Panasonic Intellectual Property Management Co., Ltd.
    • MASAHIRO YAMAOKA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    MAGNETIC COMPONENT AND POWER TRANSFER DEVICE
    • Publication number 20160148751
    • Publication date May 26, 2016
    • Panasonic Intellectual Property Management Co., Ltd.
    • KAZUYUKI SAKIYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    COIL STRUCTURE AND POWER SOURCE DEVICE
    • Publication number 20150357116
    • Publication date Dec 10, 2015
    • Panasonic Intellectual Property Management Co., Ltd.
    • TAKEHIKO YAMAKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    COIL STRUCTURE, TRANSFORMER, AND POWER CONVERTER
    • Publication number 20150213948
    • Publication date Jul 30, 2015
    • Panasonic Intellectual Property Management Co., Ltd.
    • KAZUYUKI SAKIYAMA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    VIBRATION POWER GENERATOR
    • Publication number 20140339954
    • Publication date Nov 20, 2014
    • PANASONIC CORPORATION
    • Takehiko YAMAKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    VIBRATION POWER GENERATOR
    • Publication number 20140111061
    • Publication date Apr 24, 2014
    • Stichting IMEC Nederland
    • Takehiko YAMAKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    VIBRATION POWER GENERATOR
    • Publication number 20140070664
    • Publication date Mar 13, 2014
    • Takehiko Yamakawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    VIBRATION POWER GENERATOR, ROTATING BODY AND COMMUNICATION DEVICE
    • Publication number 20140055002
    • Publication date Feb 27, 2014
    • PANASONIC CORPORATION
    • Hiroshi Nakatsuka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    OSCILLATOR
    • Publication number 20130147567
    • Publication date Jun 13, 2013
    • Takehiko Yamakawa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    MEMS PRESSURE SENSOR
    • Publication number 20130047746
    • Publication date Feb 28, 2013
    • Kunihiko Nakamura
    • G01 - MEASURING TESTING
  • Information Patent Application

    OSCILLATOR
    • Publication number 20120182077
    • Publication date Jul 19, 2012
    • Takehiko Yamakawa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    RESONATOR AND PRODUCTION METHOD THEREOF
    • Publication number 20120091547
    • Publication date Apr 19, 2012
    • PANASONIC CORPORATION
    • Tomohide Kamiyama
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    HIGH-FREQUENCY FILTER
    • Publication number 20100291946
    • Publication date Nov 18, 2010
    • Takehiko Yamakawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    FILTER DEVICE
    • Publication number 20090315643
    • Publication date Dec 24, 2009
    • Takehiko Yamakawa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    MICROMACHINE SWITCH, FILTER CIRCUIT, DUPLEXER CIRCUIT, AND COMMUNIC...
    • Publication number 20090277762
    • Publication date Nov 12, 2009
    • Hiroshi Nakatsuka
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    FREQUENCY-VARIABLE ACOUSTIC THIN FILM RESONATOR, FILTER AND COMMUNI...
    • Publication number 20090273416
    • Publication date Nov 5, 2009
    • PANASONIC CORPORATION
    • Hiroshi Nakatsuka
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    PIEZOELECTRIC DEVICE AND METHOD OF MANUFACTURING PIEZOELECTRIC RESO...
    • Publication number 20090133237
    • Publication date May 28, 2009
    • Keiji Onishi
    • H03 - BASIC ELECTRONIC CIRCUITRY