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Push-pull inverter
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Patent number 5,309,350
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Issue date May 3, 1994
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Kijima Co., Ltd.
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Seiichi Kijima
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Compact transformer
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Patent number 5,266,916
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Issue date Nov 30, 1993
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Kijima Co., Ltd.
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Seiichi Kijima
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H01 - BASIC ELECTRIC ELEMENTS
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Compact transformer
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Patent number 4,931,761
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Issue date Jun 5, 1990
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Kijima Co., Ltd.
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Seiichi Kijima
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H01 - BASIC ELECTRIC ELEMENTS
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Compact trans core
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Patent number 4,352,081
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Issue date Sep 28, 1982
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Kijima Musen Kabushiki Kaisha
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Seiichi Kijima
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H01 - BASIC ELECTRIC ELEMENTS