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Method of driving vibrating compressors
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Patent number 5,742,492
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Issue date Apr 21, 1998
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Sawafuji Electric Co., Ltd.
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Naoki Akazawa
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Power supply for vibrating compressors
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Patent number 5,656,896
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Issue date Aug 12, 1997
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Sawafuji Electric Co., Ltd.
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Kazuyuki Ogiwara
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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a-c/d-c microwave oven
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Patent number 5,237,140
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Issue date Aug 17, 1993
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Sawafuji Electric Co., Ltd.
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Naoki Akazawa
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H01 - BASIC ELECTRIC ELEMENTS
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