{
  "timeline": [
    {
      "date": "1962/10",
      "tags": [
        "会社設立"
      ],
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "日立化成工業株式会社を設立。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1963/4",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 3,
      "event": "株式会社日立製作所の化学製品部門の営業資産を譲り受け、同時に日立化工株式会社を吸収合併して営業を開始。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1965/4",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "神奈川工場のコンデンサ部門を分離独立させ、日立コンデンサ株式会社（後の日立エーアイシー）を設立。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1965/12",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "桜川工場を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1967/5",
      "tags": [
        "新規事業"
      ],
      "category": "新規事業",
      "region": "",
      "importance": 2,
      "event": "事業目的に「医薬品の製造及び販売」を追加。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1967/11",
      "tags": [
        "新規事業"
      ],
      "category": "新規事業",
      "region": "",
      "importance": 1,
      "event": "事業目的に「建設工事の設計、施工及び請負」を追加。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/1",
      "tags": [],
      "category": "",
      "region": "",
      "importance": 1,
      "event": "株式の額面金額を変更するため、東京都中央区所在の日立化成工業株式会社と合併。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/10",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "松戸工場の粉末冶金部門を分離独立させ、日立粉末冶金株式会社を設立。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/11",
      "tags": [
        "新規事業"
      ],
      "category": "新規事業",
      "region": "",
      "importance": 2,
      "event": "事業目的に「住宅機器の製造及び販売」を追加。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1969/10",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "結城工場を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1970/10",
      "tags": [
        "株式上場"
      ],
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東京・大阪両証券取引所市場第二部に上場。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/8",
      "tags": [
        "株式上場"
      ],
      "category": "株式上場",
      "region": "",
      "importance": 2,
      "event": "東京・大阪両証券取引所市場第一部に上場。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1972/6",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 3,
      "event": "新神戸電機株式会社の株式の過半数を取得。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1972/8",
      "tags": [
        "親子上場"
      ],
      "category": "親子上場",
      "region": "",
      "importance": 2,
      "event": "新神戸電機株式会社が東京・大阪両証券取引所市場第一部に上場。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1973/3",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "茨城研究所、下館研究所を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1973/8",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "五井工場を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1974/11",
      "tags": [
        "新規事業"
      ],
      "category": "新規事業",
      "region": "",
      "importance": 1,
      "event": "事業目的に「環境設備機器の製造及び販売」を追加。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1980/1",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "下館第二工場を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1982/6",
      "tags": [
        "新規事業"
      ],
      "category": "新規事業",
      "region": "",
      "importance": 3,
      "event": "事業目的に「電子材料並びに電子部品の製造及び販売」を追加。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/1",
      "tags": [],
      "category": "",
      "region": "",
      "importance": 1,
      "event": "下館第二工場を五所宮工場に名称変更。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1986/12",
      "tags": [
        "研究開発",
        "設備投資"
      ],
      "category": "研究開発|設備投資",
      "region": "",
      "importance": 2,
      "event": "南結城工場、筑波開発研究所を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/1",
      "tags": [
        "親子上場"
      ],
      "category": "親子上場",
      "region": "",
      "importance": 2,
      "event": "日立粉末冶金株式会社が東京証券取引所市場第二部に上場。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/4",
      "tags": [
        "設備投資"
      ],
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "鹿島工場を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/7",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "",
      "importance": 1,
      "event": "医薬品研究所を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1994/1",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "桜川工場を山崎工場に、南結城工場を下館工場に、五所宮工場を結城工場に統合。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/8",
      "tags": [],
      "category": "",
      "region": "",
      "importance": 1,
      "event": "結城工場から五所宮工場を分離。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/9",
      "tags": [
        "親子上場"
      ],
      "category": "親子上場",
      "region": "",
      "importance": 2,
      "event": "日立粉末冶金株式会社が東京証券取引所市場第一部に上場。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1998/11",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "事業部、工場及び営業部門を工業材料事業本部及び住機環境事業本部の二事業本部に再編。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/6",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "筑波開発研究所、茨城研究所及び下館研究所の組織を統合し、総合研究所を発足。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/6",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "鹿島事業所を山崎事業所に統合。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/9",
      "tags": [
        "親子上場"
      ],
      "category": "親子上場",
      "region": "",
      "importance": 2,
      "event": "日立エーアイシー株式会社が東京証券取引所市場第一部に上場。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/7",
      "tags": [
        "上場廃止"
      ],
      "category": "上場廃止",
      "region": "",
      "importance": 2,
      "event": "日立エーアイシー株式会社が上場を廃止。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/8",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "日立エーアイシー株式会社を完全子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/10",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "住宅機器・環境設備部門を会社分割により完全子会社の株式会社日立ハウステックとして分社。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/6",
      "tags": [
        "ガバナンス改革"
      ],
      "category": "ガバナンス改革",
      "region": "",
      "importance": 3,
      "event": "委員会等設置会社（現・指名委員会等設置会社）に移行。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/4",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "総合研究所を機能性材料研究所、電子材料研究所及び先端材料研究所に再編。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/1",
      "tags": [
        "事業売却"
      ],
      "category": "事業売却",
      "region": "",
      "importance": 3,
      "event": "株式会社日立ハウステックの株式譲渡により、住宅機器・環境設備事業をグループから分離。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/3",
      "tags": [
        "上場廃止"
      ],
      "category": "上場廃止",
      "region": "",
      "importance": 2,
      "event": "日立粉末冶金株式会社が上場を廃止。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/4",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "日立粉末冶金株式会社を完全子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/4",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "日化設備エンジニアリング株式会社を吸収合併。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/9",
      "tags": [
        "研究開発"
      ],
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "先端材料開発研究所及び新材料応用開発研究所を統合し、筑波総合研究所を発足。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/4",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "五所宮事業所を下館事業所に統合。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/3",
      "tags": [
        "上場廃止"
      ],
      "category": "上場廃止",
      "region": "",
      "importance": 2,
      "event": "新神戸電機株式会社が上場を廃止。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/6",
      "tags": [
        "新規事業"
      ],
      "category": "新規事業",
      "region": "",
      "importance": 2,
      "event": "事業目的に「電池、キャパシタ並びにそれ等の応用製品の製造及び販売」を追加。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/10",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 3,
      "event": "日東電工株式会社より半導体用封止材事業を譲受。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/1",
      "tags": [],
      "category": "",
      "region": "",
      "importance": 2,
      "event": "商号を日立化成工業株式会社から日立化成株式会社へ変更し、本店を東京都新宿区から東京都千代田区へ移転。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/4",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "新神戸電機株式会社の営業、事業企画及び電池関連以外の研究開発部門を当社に統合。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2014/4",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "日立粉末冶金株式会社を吸収合併し、松戸事業所を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2014/6",
      "tags": [],
      "category": "",
      "region": "",
      "importance": 1,
      "event": "事業目的の「粉末冶金、特殊金属並びにそれ等の応用製品の販売」を「製造及び販売」に変更。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2015/1",
      "tags": [
        "企業買収",
        "海外進出"
      ],
      "category": "企業買収|海外進出",
      "region": "その他",
      "importance": 2,
      "event": "台湾神戸電池股份有限公司（現・日立化成能源科技股份有限公司）を連結子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2015/4",
      "tags": [
        "企業買収",
        "海外進出"
      ],
      "category": "企業買収|海外進出",
      "region": "その他",
      "importance": 2,
      "event": "台湾日邦樹脂股份有限公司を連結子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2016/1",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "新神戸電機株式会社及び新神戸テクノサービス株式会社を吸収合併し、埼玉・名張・彦根の各事業所を設置。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2016/4",
      "tags": [
        "組織再編"
      ],
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "日立化成ポリマー株式会社及び日立化成フィルテック株式会社を吸収合併。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/2",
      "tags": [
        "企業買収",
        "海外進出"
      ],
      "category": "企業買収|海外進出",
      "region": "欧州",
      "importance": 2,
      "event": "蓄電池メーカーのFIAMM Energy Technology S.p.A.を連結子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/5",
      "tags": [
        "企業買収",
        "海外進出"
      ],
      "category": "企業買収|海外進出",
      "region": "米州",
      "importance": 3,
      "event": "再生医療の受託事業を担うPCT, LLC（現・Hitachi Chemical Advanced Therapeutics Solutions, LLC）を完全子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/7",
      "tags": [
        "企業買収",
        "海外進出"
      ],
      "category": "企業買収|海外進出",
      "region": "欧州",
      "importance": 2,
      "event": "ISOLITE GmbHを完全子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/9",
      "tags": [
        "企業買収",
        "海外進出"
      ],
      "category": "企業買収|海外進出",
      "region": "東南アジア",
      "importance": 2,
      "event": "Thai Storage Battery Public Company Limitedを連結子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2018/1",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "体外診断薬の協和メデックス株式会社（現・日立化成ダイアグノスティックス・システムズ）を連結子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2019/4",
      "tags": [
        "企業買収",
        "海外進出"
      ],
      "category": "企業買収|海外進出",
      "region": "欧州",
      "importance": 2,
      "event": "再生医療のApceth Biopharma GmbHを完全子会社化。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2019/10",
      "tags": [
        "事業売却"
      ],
      "category": "事業売却",
      "region": "",
      "importance": 2,
      "event": "日立化成商事株式会社の全株式を譲渡。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/3",
      "tags": [
        "上場廃止"
      ],
      "category": "上場廃止",
      "region": "",
      "importance": 3,
      "event": "昭和電工株式会社による株式公開買付けが成立し、東京証券取引所市場第一部の上場を廃止。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/4",
      "tags": [
        "企業買収"
      ],
      "category": "企業買収",
      "region": "",
      "importance": 3,
      "event": "昭和電工の傘下に入り、親会社が株式会社日立製作所から昭和電工へ異動して日立製作所グループを離脱。",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    }
  ]
}