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Koji Takayama

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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    SOUND GENERATION DEVICE
    • Publication number 20180270579
    • Publication date Sep 20, 2018
    • Pioneer Corporation
    • Satoru HIWATARI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20170359647
    • Publication date Dec 14, 2017
    • Pioneer Corporation
    • Kenichi OSHIMA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20170347184
    • Publication date Nov 30, 2017
    • Pioneer Corporation
    • Kenichi OSHIMA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    VIBRATING BODY FOR SPEAKER AND SPEAKER DEVICE
    • Publication number 20110232990
    • Publication date Sep 29, 2011
    • Pioneer Corporation
    • Hiroyuki Kobayashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20110116662
    • Publication date May 19, 2011
    • Pioneer Corporation
    • Kazuki Yuze
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTROACOUSTIC TRANSDUCER DIAPHRAGM
    • Publication number 20100108433
    • Publication date May 6, 2010
    • Pioneer Corporation
    • Koji Takayama
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Speaker and speaker unit
    • Publication number 20070189573
    • Publication date Aug 16, 2007
    • Pioneer Corporation
    • Shinichi Hayasaka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker bracket and speaker
    • Publication number 20070165901
    • Publication date Jul 19, 2007
    • Pioneer Corporation
    • Shinichi Hayasaka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Mounting bracket and speaker unit
    • Publication number 20070154054
    • Publication date Jul 5, 2007
    • PIONEER CORPORATION
    • Shinichi Hayasaka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker device
    • Publication number 20070154057
    • Publication date Jul 5, 2007
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker device
    • Publication number 20070147652
    • Publication date Jun 28, 2007
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus
    • Publication number 20070121994
    • Publication date May 31, 2007
    • PIONEER CORPORATION
    • Shinichi Hayasaka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus
    • Publication number 20070003080
    • Publication date Jan 4, 2007
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker diaphragm and method for manufacturing the same
    • Publication number 20060266578
    • Publication date Nov 30, 2006
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Vibration system part for speaker device and manufacturing method t...
    • Publication number 20060249327
    • Publication date Nov 9, 2006
    • Masatoshi Sato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus
    • Publication number 20060088182
    • Publication date Apr 27, 2006
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus
    • Publication number 20060088183
    • Publication date Apr 27, 2006
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus for vehicle
    • Publication number 20060088172
    • Publication date Apr 27, 2006
    • PIONEER CORPORATION and TOHOKU PIONEER
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Method for manufacturing electroacoustic transducer diaphragm
    • Publication number 20050253298
    • Publication date Nov 17, 2005
    • PIONEER CORPORATION
    • Koji Takayama
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Method for manufacturing electroacoustic transducer diaphragm
    • Publication number 20050253299
    • Publication date Nov 17, 2005
    • PIONEER CORPORATION
    • Koji Takayama
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Method for manufacturing diaphragm for use in electroacoustic trans...
    • Publication number 20050248058
    • Publication date Nov 10, 2005
    • PIONEER CORPORATION
    • Koji Takayama
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Speaker apparatus and speaker diaphragm
    • Publication number 20050244029
    • Publication date Nov 3, 2005
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus
    • Publication number 20050244030
    • Publication date Nov 3, 2005
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker diaphragm and speaker using the diaphram
    • Publication number 20050051380
    • Publication date Mar 10, 2005
    • PIONEER CORPORATION
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker surround and method for producing the same
    • Publication number 20040131221
    • Publication date Jul 8, 2004
    • Koji Takayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Electrically conductive damper device for speaker
    • Publication number 20020112914
    • Publication date Aug 22, 2002
    • PIONEER CORPORATION
    • Yasuhisa Abe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus
    • Publication number 20020057818
    • Publication date May 16, 2002
    • Yasuhisa Abe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker diaphragm
    • Publication number 20020046900
    • Publication date Apr 25, 2002
    • Pioneer Corporation and Tohoku Pioneer Corporation
    • Yasuhisa Abe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE