{
  "timeline": [
    {
      "date": "1917/5",
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "東洋陶器株式会社を設立",
      "detail": "森村組関係者が資本金100万円で北九州小倉に設立、初代社長に大倉和親。衛生陶器の国産化に挑戦",
      "significance": "日本初の衛生陶器国産化を目指し、後のTOTOの原点となった創業",
      "source": "有価証券報告書",
      "amount": "資本金100万円"
    },
    {
      "date": "1920/1",
      "category": "設備投資",
      "region": "",
      "importance": 3,
      "event": "日本初の連続焼成窯を導入",
      "detail": "ドレスラー式トンネル窯による焼成を開始",
      "significance": "製陶業の近代工業化の先鞭をつけ、量産化技術の基礎を築いた",
      "source": "有価証券報告書"
    },
    {
      "date": "1937/10",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "茅ヶ崎工場竣工（衛生陶器）",
      "detail": "",
      "significance": "下水道工事の活発化を受けた生産拠点の関東進出",
      "source": "有価証券報告書"
    },
    {
      "date": "1946/11",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "水栓金具の生産開始",
      "detail": "小倉第一金具工場竣工",
      "significance": "衛生陶器専業から水まわり総合メーカーへの第一歩",
      "source": "有価証券報告書"
    },
    {
      "date": "1949/5",
      "category": "株式上場",
      "region": "",
      "importance": 2,
      "event": "東京・名古屋・大阪・福岡の各証券取引所に株式上場",
      "detail": "",
      "significance": "戦後復興期の資本市場からの資金調達基盤を確立",
      "source": "有価証券報告書"
    },
    {
      "date": "1956",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "FRP浴槽をわが国で初めて開発",
      "detail": "プラスチック製品の研究に取り組み、58年販売開始",
      "significance": "陶器メーカーから住設機器総合メーカーへの転換の起点",
      "source": ""
    },
    {
      "date": "1958/9",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "茅ヶ崎工場でプラスチック製品生産開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1962/6",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "滋賀工場竣工（衛生陶器）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1964",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "ホテルニューオータニ向けユニットバスルームを開発",
      "detail": "64年竣工のホテル向け。以後ホテル・マンションで採用拡大",
      "significance": "住設機器の大型物件採用の先駆けとなり事業領域を拡張",
      "source": ""
    },
    {
      "date": "1967/4",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "小倉第二工場竣工（水栓金具）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/4",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "中津工場竣工（衛生陶器）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1968",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "事業本部制を発足、住設機器事業を開始",
      "detail": "ホーローバス・洗面化粧台の製造を開始",
      "significance": "陶器単品から住宅設備機器総合への組織的転換",
      "source": ""
    },
    {
      "date": "1969",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "商標を「TOTO」に統一",
      "detail": "",
      "significance": "企業ブランドを一本化し、後の社名変更と海外展開の基盤",
      "source": ""
    },
    {
      "date": "1970/3",
      "category": "組織再編",
      "region": "",
      "importance": 3,
      "event": "社名を東陶機器株式会社に変更",
      "detail": "同時に食器部門を廃止。陶器メーカーから住設機器総合メーカーへイメージ転換",
      "significance": "事業ドメインの再定義を社名と組織に反映させた転機",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/5",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "大分工場竣工（水栓金具）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1972/1",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "行橋工場竣工、洗面化粧台生産開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1978",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "売上高1000億円突破",
      "detail": "第1次石油危機後の減速経済下で企業体質強化を経て達成",
      "significance": "高度成長後の適応力を示す節目",
      "source": "",
      "amount": "売上1000億円"
    },
    {
      "date": "1980/6",
      "category": "",
      "region": "",
      "importance": 5,
      "event": "温水洗浄便座「ウォシュレット」発売",
      "detail": "製品のエレクトロニクス化・多機能化を推進する旗艦商品として発売",
      "significance": "日本のトイレ文化を変え、後に世界の生活文化として認知される業界史的製品",
      "source": ""
    },
    {
      "date": "1980/10",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "滋賀工場で給湯機の生産開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/3",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "決算期を11月30日から3月31日に変更",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/11",
      "category": "海外進出",
      "region": "米州",
      "importance": 2,
      "event": "米国に販売会社TOTO Kiki U.S.A. Inc.を設立",
      "detail": "",
      "significance": "本格的な海外事業展開の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/9",
      "category": "海外進出",
      "region": "米州",
      "importance": 3,
      "event": "米国に衛生陶器製造会社を設立（アトランタ）",
      "detail": "アメリカの衛生陶器工場を買収し現地生産を開始",
      "significance": "北米での現地生産・販売一貫体制の確立",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/11",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "小倉第三工場竣工（ウォシュレット専用工場）",
      "detail": "",
      "significance": "主力商品化したウォシュレットの量産体制確立",
      "source": "有価証券報告書"
    },
    {
      "date": "1994/5",
      "category": "海外進出",
      "region": "中国",
      "importance": 3,
      "event": "中国大陸に衛生陶器・浴槽・水栓の製造会社を設立",
      "detail": "北京東陶・南京東陶・大連東陶を相次ぎ設立",
      "significance": "約40年に及ぶ中国大陸事業の出発点",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/11",
      "category": "海外進出",
      "region": "中国",
      "importance": 2,
      "event": "中国大陸に販売・持株会社（東陶機器（中国））を設立",
      "detail": "",
      "significance": "中国大陸での統括体制を構築",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/1",
      "category": "組織再編",
      "region": "米州",
      "importance": 2,
      "event": "米国の販売・製造会社を統合しTOTO U.S.A., Inc.を設立",
      "detail": "",
      "significance": "米国事業の運営効率化",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/3",
      "category": "海外進出",
      "region": "東南アジア",
      "importance": 2,
      "event": "ベトナムに衛生陶器製造会社TOTO Vietnam Co., Ltd.を設立",
      "detail": "",
      "significance": "アジア生産拠点の拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/3",
      "category": "海外進出",
      "region": "米州",
      "importance": 1,
      "event": "メキシコに衛生陶器製造会社を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/5",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "社名をTOTO株式会社に変更",
      "detail": "",
      "significance": "創業社名「東陶機器」を離れ、商標に社名を一致させグローバルブランドとして再定義",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/1",
      "category": "海外進出",
      "region": "東南アジア",
      "importance": 2,
      "event": "シンガポールにアジア・オセアニア統括会社を設立",
      "detail": "",
      "significance": "アジア・オセアニアを独立した成長ドライバーとして統括",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "張本邦雄が代表取締役社長執行役員に就任",
      "detail": "前任は木瀬照雄",
      "significance": "リーマン危機直前の社長交代",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/3",
      "category": "",
      "region": "",
      "importance": 3,
      "event": "親会社株主に帰属する当期純損失▲262億円を計上",
      "detail": "リーマンショック後の需要急減と特別損失221億円で大幅赤字",
      "significance": "戦後最大級の純損失転落となり、企業体質改革の契機",
      "source": "有価証券報告書",
      "amount": "純損失▲262億円"
    },
    {
      "date": "2009/11",
      "category": "海外進出",
      "region": "東南アジア",
      "importance": 1,
      "event": "タイに衛生陶器製造会社を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/1",
      "category": "海外進出",
      "region": "その他",
      "importance": 1,
      "event": "インドに現地法人を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "喜多村円が代表取締役社長執行役員に就任",
      "detail": "前任は張本邦雄",
      "significance": "海外住設事業とリモデル事業の拡大期を牽引",
      "source": "有価証券報告書"
    },
    {
      "date": "2015/8",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "創立100周年記念事業としてTOTOミュージアムを開設",
      "detail": "本社・小倉第一工場敷地内",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/5",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "創立100周年",
      "detail": "",
      "significance": "一世紀を超える事業継続の節目",
      "source": "有価証券報告書"
    },
    {
      "date": "2019/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "清田徳明が代表取締役社長執行役員に就任",
      "detail": "前任は喜多村円",
      "significance": "中国事業の構造変化とコロナ禍対応を担う",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/6",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "監査等委員会設置会社へ移行",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/6",
      "category": "社長交代",
      "region": "",
      "importance": 2,
      "event": "田村信也が代表取締役社長執行役員に就任",
      "detail": "18代社長。前任は清田徳明",
      "significance": "中国大陸事業の減損・構造改革と成長ポートフォリオ変革を担う",
      "source": "有価証券報告書"
    },
    {
      "date": "2025/3",
      "category": "",
      "region": "中国",
      "importance": 4,
      "event": "中国大陸事業で減損損失341億円を計上",
      "detail": "不動産市況長期低迷・中級市場への対応遅れによる収益性低下を反映",
      "significance": "進出約40年の中国大陸事業の構造的見直しを迫られた転機",
      "source": "IR",
      "amount": "減損損失341億円/純利益122億円（前年比33％）"
    },
    {
      "date": "2025/4",
      "category": "経営計画",
      "region": "中国",
      "importance": 4,
      "event": "中国大陸事業の構造改革を発表",
      "detail": "東陶北京・東陶華東の2拠点で衛生陶器生産停止、生産能力を約4割縮減。東陶福建・東陶遼寧の2拠点に集約",
      "significance": "高級路線依存の海外主力市場を縮小均衡に転換する決断",
      "source": "IR",
      "amount": "特別損失約150億円"
    },
    {
      "date": "2025/8",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "ウェルネストイレ「ネオレストLS-W／AS-W」発売",
      "detail": "便スキャン機能とTOTOウェルネスアプリ連携",
      "significance": "健康計測機能を組み込みトイレの付加価値を拡張",
      "source": "IR"
    },
    {
      "date": "2025/11",
      "category": "",
      "region": "米州",
      "importance": 3,
      "event": "ウォシュレット累計出荷台数が7000万台突破",
      "detail": "1980年販売開始から45年5ヵ月。海外比率30％、米州比率12.5％に上昇",
      "significance": "単品商品の海外文化浸透が本格化した段階を示す",
      "source": "IR",
      "amount": "累計7000万台"
    },
    {
      "date": "2025/12",
      "category": "",
      "region": "",
      "importance": 4,
      "event": "「WASHLET」がオックスフォード英語辞典に新規掲載",
      "detail": "",
      "significance": "商標が世界的な生活文化として辞典レベルで公認された象徴的出来事",
      "source": "IR"
    }
  ]
}