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Semiconductor memory
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Patent number 5,808,951
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Issue date Sep 15, 1998
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 5,732,037
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Issue date Mar 24, 1998
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor Memory
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Patent number 5,689,457
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Issue date Nov 18, 1997
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 5,448,520
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Issue date Sep 5, 1995
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 5,365,478
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Issue date Nov 15, 1994
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 5,170,374
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Issue date Dec 8, 1992
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,860,255
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Issue date Aug 22, 1989
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,709,353
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Issue date Nov 24, 1987
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,646,267
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Issue date Feb 24, 1987
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,592,022
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Issue date May 27, 1986
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,539,658
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Issue date Sep 3, 1985
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE
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Semiconductor memory
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Patent number 4,472,792
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Issue date Sep 18, 1984
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Hitachi, Ltd.
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Katsuhiro Shimohigashi
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G11 - INFORMATION STORAGE