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Semiconductor device
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Patent number 4,907,057
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Issue date Mar 6, 1990
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Tokyo Shibaura Denki Kabushiki Kaisha
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Shoji Ariizumi
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G11 - INFORMATION STORAGE
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Read only memory
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Patent number 4,748,492
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Issue date May 31, 1988
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Kabushiki Kaisha Toshiba
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Taira Iwase
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H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor memory device
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Patent number 4,571,706
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Issue date Feb 18, 1986
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Tokyo Shibaura Denki Kabushiki Kaisha
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Hiroshi Iwahashi
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G11 - INFORMATION STORAGE
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Semiconductor memory device
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Patent number 4,535,426
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Issue date Aug 13, 1985
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Tokyo Shibaura Denki Kabushiki Kaisha
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Shoji Ariizumi
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H01 - BASIC ELECTRIC ELEMENTS
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