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Power supply unit
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Patent number 6,075,433
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Issue date Jun 13, 2000
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Matsushita Electric Industrial Co., Ltd.
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Makoto Ono
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Coil
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Patent number D423028
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Issue date Apr 18, 2000
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Matsushita Electric Industrial Co., Ltd.
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Hideki Okura
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D15 - Machines not elsewhere specified
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Self oscillating power supply
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Patent number 5,917,712
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Issue date Jun 29, 1999
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Matsushita Electric Industrial Co., Ltd.
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Hideki Okura
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER