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Hirofumi Onitsuka

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Patents Grantslast 30 patents

  • Information Patent Grant

    Bass reflex port and acoustic device
    • Patent number 11,240,592
    • Issue date Feb 1, 2022
    • Yamaha Corporation
    • Akira Miki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Bass reflex port and bass reflex type speaker
    • Patent number 10,750,273
    • Issue date Aug 18, 2020
    • Yamaha Corporation
    • Katsuya Uchida
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic structure and acoustic panel
    • Patent number 10,045,119
    • Issue date Aug 7, 2018
    • Yamaha Corporation
    • Hideto Matsuda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Vehicle sound generation apparatus, and vehicle sound generation me...
    • Patent number 9,479,851
    • Issue date Oct 25, 2016
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hideki Osawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic apparatus
    • Patent number 9,473,847
    • Issue date Oct 18, 2016
    • Yamaha Corporation
    • Yasuo Shiozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Microphone device
    • Patent number 9,407,983
    • Issue date Aug 2, 2016
    • Yamaha Corporation
    • Kunihiro Kumagai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound generating device for vehicle, and sound generating method fo...
    • Patent number 9,327,644
    • Issue date May 3, 2016
    • Yamaha Hatsudoki Kabushiki Kaisha
    • Hideki Osawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Port for audio equipment
    • Patent number D752559
    • Issue date Mar 29, 2016
    • Yamaha Corporation
    • Akira Miki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Port for audio equipment
    • Patent number D752561
    • Issue date Mar 29, 2016
    • Yamaha Corporation
    • Akira Miki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Port for audio equipment
    • Patent number D752560
    • Issue date Mar 29, 2016
    • Yamaha Corporation
    • Akira Miki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Port for audio equipment
    • Patent number D750599
    • Issue date Mar 1, 2016
    • Yamaha Corporation
    • Akira Miki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Keyboard instrument
    • Patent number 9,275,612
    • Issue date Mar 1, 2016
    • Yamaha Corporation
    • Tsukasa Suenaga
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Port for audio equipment
    • Patent number D750048
    • Issue date Feb 23, 2016
    • Yamaha Corporation
    • Akira Miki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Tubular body, bass reflex port, and acoustic apparatus
    • Patent number 9,241,211
    • Issue date Jan 19, 2016
    • Yamaha Corporation
    • Akira Miki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Bass reflex port and tubular body
    • Patent number 9,232,300
    • Issue date Jan 5, 2016
    • Yamaha Corporation
    • Akira Miki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Audio device, and methods for designing and making the audio devices
    • Patent number 9,224,380
    • Issue date Dec 29, 2015
    • Yamaha Corporation
    • Yasuo Shiozawa
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Port for audio equipment
    • Patent number D745492
    • Issue date Dec 15, 2015
    • Yamaha Corporation
    • Akira Miki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Acoustic structure including helmholtz resonator
    • Patent number 8,731,224
    • Issue date May 20, 2014
    • Yamaha Corporation
    • Yasuo Shiozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Audio apparatus
    • Patent number 8,678,130
    • Issue date Mar 25, 2014
    • Yamaha Corporation
    • Yasuo Shiozawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Simulation apparatus and program
    • Patent number 8,321,043
    • Issue date Nov 27, 2012
    • Yamaha Corporation
    • Hirofumi Onitsuka
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Audio amplifier unit
    • Patent number 7,095,865
    • Issue date Aug 22, 2006
    • Yamaha Corporation
    • Masaki Katayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Bass Reflex Port and Bass Reflex Type Speaker
    • Publication number 20190297413
    • Publication date Sep 26, 2019
    • Yamaha Corporation
    • Katsuya UCHIDA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    BASS REFLEX PORT AND ACOUSTIC DEVICE
    • Publication number 20190141437
    • Publication date May 9, 2019
    • Yamaha Corporation
    • Akira MIKI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ACOUSTIC STRUCTURE AND ACOUSTIC PANEL
    • Publication number 20160373855
    • Publication date Dec 22, 2016
    • Yamaha Corporation
    • Hideto MATSUDA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Microphone Device
    • Publication number 20150373438
    • Publication date Dec 24, 2015
    • Yahama Corporation
    • Kunihiro KUMAGAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    KEYBOARD INSTRUMENT
    • Publication number 20150194138
    • Publication date Jul 9, 2015
    • Yamaha Corporation
    • Tsukasa SUENAGA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Speaker and Speaker Net
    • Publication number 20150110325
    • Publication date Apr 23, 2015
    • Yamaha Corporation
    • Yasuo SHIOZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    VEHICLE SOUND GENERATION APPARATUS, AND VEHICLE SOUND GENERATION ME...
    • Publication number 20150092957
    • Publication date Apr 2, 2015
    • Yamata Hatsudoki Kabushiki Kaisha
    • Hideki Osawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    TUBULAR BODY, BASS REFLEX PORT, AND ACOUSTIC APPARATUS
    • Publication number 20140262597
    • Publication date Sep 18, 2014
    • Yamaha Corporation
    • Akira MIKI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    BASS REFLEX PORT AND TUBULAR BODY
    • Publication number 20140262598
    • Publication date Sep 18, 2014
    • Yamaha Corporation
    • Akira MIKI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Acoustic Apparatus
    • Publication number 20140254839
    • Publication date Sep 11, 2014
    • Yamaha Corporation
    • Yasuo SHIOZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND GENERATING DEVICE FOR VEHICLE, AND SOUND GENERATING METHOD FO...
    • Publication number 20130230185
    • Publication date Sep 5, 2013
    • YAMAHA CORPORATION
    • Hideki Osawa
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Audio Apparatus
    • Publication number 20130062139
    • Publication date Mar 14, 2013
    • Yamaha Corporation
    • Yasuo SHIOZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Audio Device, and Methods for Designing and Making the Audio Devices
    • Publication number 20120057736
    • Publication date Mar 8, 2012
    • Yamaha Corporation
    • Yasuo SHIOZAWA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    ACOUSTIC STRUCTURE INCLUDING HELMHOLTZ RESONATOR
    • Publication number 20110206228
    • Publication date Aug 25, 2011
    • Yamaha Corporation
    • Yasuo SHIOZAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Simulation Apparatus and Program
    • Publication number 20090125135
    • Publication date May 14, 2009
    • Yamaha Corporation
    • Hirofumi ONITSUKA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Audio amplifier unit
    • Publication number 20030147543
    • Publication date Aug 7, 2003
    • Yamaha Corporation
    • Masaki Katayama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE