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    Piezoelectric ceramic speaker using vibration sheet formed with piezoelectric ceramic

    New search for: WATANABE GOUKI
    New search for: GOTO TAKAYUKI
    New search for: HATANO KEIICHI
    New search for: KISHIMOTO SUMIAKI
    New search for: DOSHIDA YUTAKA

    A piezoelectric ceramic speaker includes a piezoelectric element using a vibration sheet formed with piezoelectric ceramic having a primary phase constituted by ceramic grains of perovskite crystal structure containing Pb, Nb, Zn, Ti, and Zr, and a secondary phase constituted by ZnO grains, wherein the primary phase is constituted by ceramic grains expressed by a composition formula Pb {(Zr(1-a)Tia)x·(Ni1/3Nb2/3)y·(Zn1/3Nb2/3)z}O3 (where 0<1, 0

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    Piezoelectric ceramic speaker using vibration sheet formed with piezoelectric ceramic

    New search for: WATANABE GOUKI
    New search for: GOTO TAKAYUKI
    New search for: HATANO KEIICHI
    New search for: KISHIMOTO SUMIAKI
    New search for: DOSHIDA YUTAKA

    A piezoelectric ceramic speaker includes a piezoelectric element using a vibration sheet formed with piezoelectric ceramic having a primary phase constituted by ceramic grains of perovskite crystal structure containing Pb, Nb, Zn, Ti, and Zr, and a secondary phase constituted by ZnO grains, wherein the primary phase is constituted by ceramic grains expressed by a composition formula Pb {(Zr(1-a)Tia)x·(Ni1/3Nb2/3)y·(Zn1/3Nb2/3)z}O3 (where 0<1, 0

    Access

    Download

    Piezoelectric ceramic speaker using vibration sheet formed with piezoelectric ceramic

    New search for: WATANABE GOUKI
    New search for: GOTO TAKAYUKI
    New search for: HATANO KEIICHI
    New search for: KISHIMOTO SUMIAKI
    New search for: DOSHIDA YUTAKA

    A piezoelectric ceramic speaker includes a piezoelectric element using a vibration sheet formed with piezoelectric ceramic having a primary phase constituted by ceramic grains of perovskite crystal structure containing Pb, Nb, Zn, Ti, and Zr, and a secondary phase constituted by ZnO grains, wherein the primary phase is constituted by ceramic grains expressed by a composition formula Pb {(Zr(1-a)Tia)x·(Ni1/3Nb2/3)y·(Zn1/3Nb2/3)z}O3 (where 0<1, 0

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    Document information
    Title:

    Piezoelectric ceramic speaker using vibration sheet formed with piezoelectric ceramic

    Contributors:

    WATANABE GOUKI (author) / GOTO TAKAYUKI (author) / HATANO KEIICHI (author) / KISHIMOTO SUMIAKI (author) / DOSHIDA YUTAKA (author)

    Publication date:

    2019-09-17

    Type of media:

    Patent

    Type of material:

    Electronic Resource

    Language:

    English

    Classification:

    IPC:  H10N / C04B Kalk , LIME / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler

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