{
  "timeline": [
    {
      "date": "1999/12",
      "tags": [
        "会社設立"
      ],
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "日本電気と日立製作所のDRAM事業を統合し、NEC日立メモリ株式会社を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/4",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "DRAM製品の開発事業を開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/5",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "商号をエルピーダメモリ株式会社に変更",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/6",
      "tags": [
        "海外進出"
      ],
      "category": "海外進出",
      "region": "欧州",
      "importance": 1,
      "event": "営業拠点としてドイツにElpida Memory (Europe) GmbHを設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/7",
      "tags": [
        "海外進出"
      ],
      "category": "海外進出",
      "region": "東南アジア",
      "importance": 1,
      "event": "香港・シンガポール・台湾に営業拠点を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/9",
      "tags": [
        "海外進出"
      ],
      "category": "海外進出",
      "region": "米州",
      "importance": 1,
      "event": "NECグループ・日立グループとの共同出資で米国にElpida Memory (USA) Inc.を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/2",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 3,
      "event": "直径300mmウェハ対応の自社工場（E300Fab）の建設に着手し、国内市場での販売業務を開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/3",
      "tags": [
        "海外進出"
      ],
      "category": "海外進出",
      "region": "",
      "importance": 1,
      "event": "北米・欧州・アジアの海外市場で販売業務を開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/1",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "E300エリア1で量産稼働を開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/3",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 3,
      "event": "三菱電機よりDRAM事業を譲り受け、開発エンジニアを受け入れ",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/3",
      "tags": [
        "業務提携"
      ],
      "category": "業務提携",
      "region": "中国",
      "importance": 2,
      "event": "台湾のPowerchip Semiconductor CorporationとDRAM調達契約を締結",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/9",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "生産を担当する子会社、広島エルピーダメモリ株式会社を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/3",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "米州",
      "importance": 1,
      "event": "Elpida Memory (USA) Inc.のNEC・日立グループ持分を取得し100％子会社化",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/6",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "E300エリア1の隣接地でエリア2・エリア3の増設に着手",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/11",
      "tags": [
        "株式上場"
      ],
      "category": "株式上場",
      "region": "",
      "importance": 1,
      "event": "東京証券取引所市場第一部に株式を上場",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/8",
      "tags": [
        "合弁設立"
      ],
      "category": "合弁設立",
      "region": "",
      "importance": 1,
      "event": "ウェハプローブテスト専門会社テラプローブをKingston Technology Japan・Powertech Technology・アドバンテストと合弁で設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/10",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "E300エリア2で量産稼働を開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/10",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "日立製作所よりアキタ電子システムズの半導体後工程事業を譲り受け、秋田エルピーダメモリとして事業開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/1",
      "tags": [
        "合弁設立"
      ],
      "category": "合弁設立",
      "region": "中国",
      "importance": 3,
      "event": "Powerchip Semiconductor Corporationと台湾・中部サイエンスパークにDRAM生産合弁会社Rexchip Electronics Corporationを設立することで正式合意",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書",
      "link": "/tse/6665/decisions/taiwan-jv-rexchip-2007/"
    },
    {
      "date": "2007/4",
      "tags": [
        "事業売却"
      ],
      "category": "事業売却",
      "region": "中国",
      "importance": 1,
      "event": "広島エルピーダメモリのE200Fab内製造装置を中国のCension Semiconductor Manufacturing Corporationへ譲渡",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/8",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "欧州",
      "importance": 1,
      "event": "アジア・欧州地域の販売会社を統括するElpida Memory International B.V.をオランダに設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/2",
      "tags": [
        "海外進出"
      ],
      "category": "海外進出",
      "region": "欧州",
      "importance": 1,
      "event": "営業拠点としてスイスにElpida Memory (Europe) Sàrlを設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/4",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "生産子会社の広島エルピーダメモリを吸収合併",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/3",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "中国",
      "importance": 2,
      "event": "Rexchip Electronics Corporationとテラプローブを連結子会社化",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/5",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "欧州",
      "importance": 1,
      "event": "ドイツにミュンヘンデザインセンターを開設し、グラフィックスDRAMの開発を開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/6",
      "tags": [
        "経営危機"
      ],
      "category": "経営危機",
      "region": "",
      "importance": 3,
      "event": "産業活力の再生及び産業活動の革新に関する特別措置法にもとづく事業再構築計画の認定を経済産業省より取得",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書",
      "link": "/tse/6665/decisions/public-fund-injection-2009/"
    },
    {
      "date": "2010/1",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "欧州",
      "importance": 1,
      "event": "設計開発拠点としてイタリアにElpida Memory (Italy) S.r.l.を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/6",
      "tags": [
        "海外進出"
      ],
      "category": "海外進出",
      "region": "その他",
      "importance": 1,
      "event": "営業拠点として韓国にElpida Memory (Korea) Co., Ltd.を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/12",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "テラプローブが東京証券取引所マザーズ市場に上場し、持分法適用関連会社に異動",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/2",
      "tags": [
        "株式上場"
      ],
      "category": "株式上場",
      "region": "中国",
      "importance": 1,
      "event": "台湾証券取引所にTDR（台湾預託証券）を上場",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/2",
      "tags": [
        "経営危機"
      ],
      "category": "経営危機",
      "region": "",
      "importance": 3,
      "event": "東京地方裁判所に会社更生手続開始を申し立て、経営破綻。負債総額4480億円は国内製造業で過去最大",
      "detail": "",
      "significance": "",
      "source": "週刊東洋経済 2012年3月10日号",
      "link": "/tse/6665/decisions/corporate-reorganization-2012/"
    },
    {
      "date": "2012/3",
      "tags": [
        "上場廃止"
      ],
      "category": "上場廃止",
      "region": "",
      "importance": 2,
      "event": "東京証券取引所が株式を上場廃止",
      "detail": "",
      "significance": "",
      "source": "株主プロ（有価証券報告書一覧）"
    },
    {
      "date": "2013/7",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "米州",
      "importance": 3,
      "event": "米マイクロン・テクノロジーの傘下に入り、エルピーダのブランドが消滅",
      "detail": "",
      "significance": "",
      "source": "週刊東洋経済 2013年10月19日号"
    }
  ]
}