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Piezoelectric actuator
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Patent number 4,855,633
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Issue date Aug 8, 1989
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Tokyo Juki Industrial Co., Ltd.
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Tsuyoshi Shibuya
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Piezoelectric motor
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Patent number 4,777,398
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Issue date Oct 11, 1988
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Tokyo Juki Industrial Co., Ltd.
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Tsuyoshi Shibuya
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Piezoelectric actuator
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Patent number 4,647,808
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Issue date Mar 3, 1987
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Tokyo Juki Industrial Co., Ltd.
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Tsuyoshi Shibuya
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H01 - BASIC ELECTRIC ELEMENTS
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Piezoelectric actuator
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Patent number 4,644,213
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Issue date Feb 17, 1987
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Tokyo Juki Industrial Co., Ltd.
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Tsuyoshi Shibuya
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER