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Semiconductor memory
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Patent number 5,136,546
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Issue date Aug 4, 1992
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Hitachi, Ltd.
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Minoru Fukuda
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,984,212
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Issue date Jan 8, 1991
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Hitachi, Ltd.
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Minoru Fukuda
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,905,195
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Issue date Feb 27, 1990
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Hitachi, Ltd.
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Minoru Fukuda
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,788,665
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Issue date Nov 29, 1988
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Hitachi, Ltd.
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Minoru Fukuda
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,691,298
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Issue date Sep 1, 1987
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Hitachi, Ltd.
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Minoru Fukuda
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G11 - INFORMATION STORAGE