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Same polarity induction generator
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Patent number 5,030,867
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Issue date Jul 9, 1991
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Technical Associate Co., Ltd.
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Yasuharu Yamada
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Lighting lamp
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Patent number 4,991,074
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Issue date Feb 5, 1991
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Tomoegawa Paper Co., Ltd.
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Yasuo Kobayashi
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H01 - BASIC ELECTRIC ELEMENTS
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Lighting lamp
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Patent number 4,954,937
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Issue date Sep 4, 1990
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Tomoegawa Paper Co., Ltd.
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Yasuo Kobayashi
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H01 - BASIC ELECTRIC ELEMENTS
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Pulse generator circuit
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Patent number 4,757,214
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Issue date Jul 12, 1988
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NEC Corporation
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Yasuo Kobayashi
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H03 - BASIC ELECTRONIC CIRCUITRY
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