{
  "timeline": [
    {
      "date": "1942/5",
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "有限会社大和工業設立",
      "detail": "時計部品の加工などを目的とし、ウオッチ事業を開始",
      "significance": "諏訪精工舎・エプソンの源流。信州諏訪の時計部品メーカーとして発足",
      "source": "有価証券報告書"
    },
    {
      "date": "1959/5",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "第二精工舎諏訪工場より営業譲受、有限会社諏訪精工舎に商号変更",
      "detail": "",
      "significance": "服部時計店系列の製造部門と統合、時計製造の本格化",
      "source": "有価証券報告書"
    },
    {
      "date": "1959/9",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "株式会社諏訪精工舎に組織変更",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1961/12",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "信州精器株式会社（後のエプソン株式会社）設立",
      "detail": "国内製造会社",
      "significance": "後のEPSONブランド事業の母体設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1964/10",
      "category": "研究開発",
      "region": "",
      "importance": 3,
      "event": "東京オリンピックで世界初の水晶式ポータブルプリンター『クリスタル・クロノメーター』を提供",
      "detail": "ウオッチ関連技術の応用製品",
      "significance": "オリンピック公式計時で世界的認知を獲得。プリンター事業の萌芽",
      "source": ""
    },
    {
      "date": "1968/8",
      "category": "組織再編",
      "region": "東南アジア",
      "importance": 1,
      "event": "シンガポールに製造会社Tenryuを設立",
      "detail": "",
      "significance": "最初期の海外製造拠点",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/9",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "ミニプリンター事業開始",
      "detail": "オリンピックの計時用プリンターが原点",
      "significance": "プリンター事業の本格スタート",
      "source": "有価証券報告書"
    },
    {
      "date": "1973/11",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "半導体事業開始",
      "detail": "",
      "significance": "ウオッチ向けLSIから始まる電子デバイス事業の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1974/2",
      "category": "組織再編",
      "region": "中国",
      "importance": 1,
      "event": "香港にSuwa Overseas（現Epson Precision Hong Kong）を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/4",
      "category": "組織再編",
      "region": "米州",
      "importance": 2,
      "event": "アメリカに販売会社Epson America設立、眼鏡レンズ事業開始",
      "detail": "眼鏡レンズは2013年2月に譲渡",
      "significance": "北米市場への本格進出",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/6",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "『EPSON』ブランドを非時計分野のカンパニーブランドとして制定",
      "detail": "液晶表示体事業も開始",
      "significance": "『Son of Electronic Printer』の意。以後の多角化事業の顔となる",
      "source": "有価証券報告書"
    },
    {
      "date": "1976/7",
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "水晶デバイス事業開始",
      "detail": "",
      "significance": "ウオッチ用水晶技術の転用。長く主力事業の一翼を担う",
      "source": "有価証券報告書"
    },
    {
      "date": "1978/12",
      "category": "",
      "region": "",
      "importance": 4,
      "event": "コンピュータ用プリンター事業開始",
      "detail": "ドットマトリクスプリンターMX-80等で世界市場を席巻",
      "significance": "PC周辺機器メーカーとしての地位を確立。プリンター首位への道筋",
      "source": "有価証券報告書"
    },
    {
      "date": "1979/11",
      "category": "組織再編",
      "region": "欧州",
      "importance": 1,
      "event": "ドイツに販売会社Epson Deutschland設立",
      "detail": "",
      "significance": "欧州市場展開の開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1980/10",
      "category": "組織再編",
      "region": "中国",
      "importance": 1,
      "event": "香港に販売会社Epson Electronics Trading設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1982/11",
      "category": "組織再編",
      "region": "東南アジア",
      "importance": 1,
      "event": "シンガポールに販売会社Epson Electronics Singapore設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/5",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "エプソン販売株式会社設立",
      "detail": "",
      "significance": "国内販売体制の整備",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/1",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "庄内電子工業（現東北エプソン）設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/2",
      "category": "組織再編",
      "region": "米州",
      "importance": 1,
      "event": "アメリカに製造会社Epson Portland設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/11",
      "category": "組織再編",
      "region": "",
      "importance": 3,
      "event": "エプソン株式会社を吸収合併しセイコーエプソン株式会社に商号変更",
      "detail": "諏訪精工舎がエプソン（信州精器）を吸収",
      "significance": "時計部門と情報機器部門の統合。現セイコーエプソンの骨格が完成",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/1",
      "category": "組織再編",
      "region": "欧州",
      "importance": 1,
      "event": "イギリスに製造会社Epson Telford設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/1",
      "category": "研究開発",
      "region": "",
      "importance": 4,
      "event": "液晶プロジェクター事業開始",
      "detail": "高温ポリシリコンTFT液晶パネル技術を応用",
      "significance": "プロジェクター事業の創始。後に世界首位シェアを長年維持",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/9",
      "category": "組織再編",
      "region": "欧州",
      "importance": 1,
      "event": "ドイツに販売会社Epson Semiconductor GmbH設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/1",
      "category": "組織再編",
      "region": "欧州",
      "importance": 1,
      "event": "オランダに地域統括会社Epson Europe設立",
      "detail": "",
      "significance": "欧州統括体制の整備",
      "source": "有価証券報告書"
    },
    {
      "date": "1993/1",
      "category": "組織再編",
      "region": "米州",
      "importance": 1,
      "event": "アメリカに持株会社U.S. Epson設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1993/11",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "エプソンダイレクト設立",
      "detail": "PC直販",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1994/7",
      "category": "組織再編",
      "region": "東南アジア",
      "importance": 1,
      "event": "インドネシアにP.T. Indonesia Epson Industry設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/2",
      "category": "組織再編",
      "region": "中国",
      "importance": 1,
      "event": "中国にSuzhou Epson Quartz Devices設立",
      "detail": "2011年7月全持分譲渡",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/11",
      "category": "組織再編",
      "region": "米州",
      "importance": 1,
      "event": "アメリカにEpson Electronics America設立",
      "detail": "2018年4月にEpson Americaが吸収合併",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1998/4",
      "category": "組織再編",
      "region": "中国",
      "importance": 1,
      "event": "中国地域統括会社Epson China設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/3",
      "category": "企業買収",
      "region": "",
      "importance": 1,
      "event": "オリエント時計を子会社化",
      "detail": "",
      "significance": "時計事業の再編",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/6",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東証一部に株式上場",
      "detail": "",
      "significance": "非公開企業から上場企業へ。調達チャネルとガバナンス整備",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/10",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "液晶ディスプレイ事業を三洋エプソンイメージングデバイスとして分社",
      "detail": "三洋電機と合弁",
      "significance": "電子デバイス事業の再編の始まり",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/10",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "水晶デバイス事業をエプソントヨコムとして分社",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/3",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "当期純損失▲179億円",
      "detail": "液晶・電子デバイス事業の不振",
      "significance": "電子デバイス事業の構造問題が表面化",
      "source": "有価証券報告書",
      "amount": "純損失▲179億円"
    },
    {
      "date": "2006/12",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "エプソンイメージングデバイスに商号変更",
      "detail": "三洋から追加取得し完全子会社化。2010年4月に中小型液晶事業を譲渡、2017年2月に吸収合併で解散",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/3",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "当期純損失▲71億円",
      "detail": "2期連続の純損失",
      "significance": "",
      "source": "有価証券報告書",
      "amount": "純損失▲71億円"
    },
    {
      "date": "2007/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "社長交代（花岡清二→碓井稔）",
      "detail": "",
      "significance": "インクジェット技術出身のCEOへ",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/11",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "オリエント時計株式を公開買付で追加取得",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/3",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "オリエント時計を株式交換により完全子会社化",
      "detail": "2017年4月に時計販売事業を当社・エプソン販売へ承継",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/3",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "営業赤字▲16億円・純損失1,113億円",
      "detail": "リーマンショックと電子デバイス事業減損",
      "significance": "統合以来最大規模の損失。電子デバイス事業の構造改革を本格化",
      "source": "有価証券報告書",
      "amount": "営業赤字▲16億円、純損失▲1,113億円"
    },
    {
      "date": "2009/6",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "エプソントヨコムを完全子会社化",
      "detail": "水晶デバイス事業の営業機能を2012年に当社が承継",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/4",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "中小型液晶ディスプレイ事業資産の一部を譲渡",
      "detail": "エプソンイメージングデバイスから",
      "significance": "中小型液晶事業からの実質的撤退",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/3",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "当期純損失▲197億円",
      "detail": "電子デバイス事業減損継続",
      "significance": "",
      "source": "有価証券報告書",
      "amount": "純損失▲197億円"
    },
    {
      "date": "2011/7",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "Suzhou Epson Quartz Devices全持分譲渡",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/2",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "眼鏡レンズ事業譲渡",
      "detail": "",
      "significance": "非中核事業の整理",
      "source": "有価証券報告書"
    },
    {
      "date": "2014/3",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "営業利益850億円・当期純利益837億円",
      "detail": "プリンター事業が好調、円安効果",
      "significance": "電子デバイス事業整理後の収益改善が鮮明に",
      "source": "有価証券報告書",
      "amount": "営業利益850億円"
    },
    {
      "date": "2015/3",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "営業利益1,314億円・当期純利益1,126億円",
      "detail": "IFRS適用初年度",
      "significance": "統合以来最高益。プリンティング事業の収益力が明確化",
      "source": "有価証券報告書",
      "amount": "営業利益1,314億円"
    },
    {
      "date": "2016/4",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "セグメント再編",
      "detail": "情報関連機器事業をプリンティングソリューションズ・ビジュアルコミュニケーション・ウエアラブル産業プロダクツに再分類",
      "significance": "事業ポートフォリオの再定義",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/2",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "エプソンイメージングデバイスを吸収合併",
      "detail": "",
      "significance": "中小型液晶事業の完全終結",
      "source": "有価証券報告書"
    },
    {
      "date": "2018/6",
      "category": "社長交代",
      "region": "",
      "importance": 3,
      "event": "社長交代（碓井稔→小川恭範）",
      "detail": "ピエゾ式プリントヘッド技術者出身",
      "significance": "『本質的価値と長期視点』を掲げる新体制スタート",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "株式1対2分割・監査等委員会設置会社へ移行・東証プライム市場へ移行",
      "detail": "フィリピンおよび広丘事業所にインクジェット・プロジェクター・印刷分野の新工場を竣工",
      "significance": "ガバナンス強化と印刷領域への投資集中",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/5",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "小川社長が『人員を増やさず』固定費削減方針を表明",
      "detail": "2026年度以降の長期計画で",
      "significance": "雇用を維持しながら収益性を改善するモデルへ転換",
      "source": "日本経済新聞 2024/5/21"
    },
    {
      "date": "2024/9",
      "category": "組織再編",
      "region": "米州",
      "importance": 1,
      "event": "アメリカに自家保険会社Epson Global Reinsurance設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/12",
      "category": "企業買収",
      "region": "",
      "importance": 3,
      "event": "米Fiery, LLCを完全子会社化",
      "detail": "商業・産業印刷のデジタルフロントエンド（DFE）大手",
      "significance": "商業・産業印刷ソリューションの上流取り込み",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/12",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "ラピダス出資を『話あれば検討』と表明",
      "detail": "",
      "significance": "国内半導体再編への関与姿勢を明確化",
      "source": "時事通信 2024/12/25"
    },
    {
      "date": "2025/3",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "通期売上1兆3,629億円・営業利益751億円",
      "detail": "FY24実績",
      "significance": "",
      "source": "有価証券報告書",
      "amount": "売上1兆3,629億円、営業利益751億円"
    },
    {
      "date": "2025/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "社長交代（小川恭範→吉田潤吉）",
      "detail": "小川は会長に",
      "significance": "長期計画実行フェーズでのバトンタッチ",
      "source": "有価証券報告書"
    }
  ]
}