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Keizo Tatsumi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Wind instrument
    • Patent number D929495
    • Issue date Aug 31, 2021
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Wind instrument
    • Patent number D929494
    • Issue date Aug 31, 2021
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Case for wind instrument
    • Patent number D893859
    • Issue date Aug 25, 2020
    • Yamaha Corporation
    • Keizo Tatsumi
    • D03 - Travel goods and personal belongings
  • Information Patent Grant

    Piano performance controller
    • Patent number D865044
    • Issue date Oct 29, 2019
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Piano
    • Patent number D839954
    • Issue date Feb 5, 2019
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Piano
    • Patent number D837284
    • Issue date Jan 1, 2019
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Wind instrument
    • Patent number D826316
    • Issue date Aug 21, 2018
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Wind instrument
    • Patent number D823375
    • Issue date Jul 17, 2018
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Mute
    • Patent number D820901
    • Issue date Jun 19, 2018
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Mute
    • Patent number D818034
    • Issue date May 15, 2018
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Silencer for wind instrument
    • Patent number 9,583,079
    • Issue date Feb 28, 2017
    • Yamaha Corporation
    • Yuichiro Suenaga
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Electric violin
    • Patent number D767016
    • Issue date Sep 20, 2016
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Mute
    • Patent number D711457
    • Issue date Aug 19, 2014
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Electronic drum pad
    • Patent number D692943
    • Issue date Nov 5, 2013
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Electronic drum pad
    • Patent number D688737
    • Issue date Aug 27, 2013
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Electronic piano
    • Patent number D597587
    • Issue date Aug 4, 2009
    • Yamaha Corporation
    • Marianne Bailey
    • D17 - Musical instruments
  • Information Patent Grant

    Electronic keyboard musical instrument
    • Patent number RE37909
    • Issue date Nov 26, 2002
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Electronic keyboard musical instrument
    • Patent number D413917
    • Issue date Sep 14, 1999
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Electric percussion instrument with floppy disk player
    • Patent number D405819
    • Issue date Feb 16, 1999
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Speaker box
    • Patent number D397116
    • Issue date Aug 18, 1998
    • Yamaha Corporation
    • Keizo Tatsumi
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Speaker box
    • Patent number D394861
    • Issue date Jun 2, 1998
    • Yamaha Corporation
    • Keizo Tatsumi
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined speaker and amplifier
    • Patent number D374671
    • Issue date Oct 15, 1996
    • Yamaha Corporation
    • Keizo Tatsumi
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Karaoke music player
    • Patent number D366041
    • Issue date Jan 9, 1996
    • Yamaha Corporation
    • Keizo Tatsumi
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Electronic string instrument
    • Patent number D310091
    • Issue date Aug 21, 1990
    • Yamaha Corporation
    • Keizo Tatsumi
    • D17 - Musical instruments
  • Information Patent Grant

    Stringed musical instrument
    • Patent number 4,890,530
    • Issue date Jan 2, 1990
    • Yamaha Corporation
    • Keizo Tatsumi
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    SILENCER FOR WIND INSTRUMENT
    • Publication number 20140373698
    • Publication date Dec 25, 2014
    • YUICHIRO SUENAGA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS