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  • Publication Date: December 31, 1969
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    JP-2006338749-ADecember 14, 2006Nec Electronics Corp, Necエレクトロニクス株式会社不揮発性半導体記憶装置
    JP-2009158574-AJuly 16, 2009Samsung Electronics Co Ltd, 三星電子株式会社Samsung Electronics Co.,Ltd.Semiconductor memory device
    JP-4657813-B2March 23, 2011ルネサスエレクトロニクス株式会社不揮発性半導体記憶装置
    US-7414909-B2August 19, 2008Renesas Technology Corp.Nonvolatile semiconductor memory