{
  "timeline": [
    {
      "date": "1980/10",
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "愛知自動車総合サービス株式会社設立",
      "detail": "服部太氏が設立",
      "significance": "USS の出発点。中古車流通の合理化を掲げて創業",
      "source": "有価証券報告書"
    },
    {
      "date": "1982/8",
      "category": "新規事業|設備投資",
      "region": "",
      "importance": 3,
      "event": "USS名古屋会場を愛知県東海市に開設",
      "detail": "中古車オートオークション会場の第一号",
      "significance": "中古車オートオークション専業の創成",
      "source": "有価証券報告書"
    },
    {
      "date": "1982/10",
      "category": "IT投資",
      "region": "",
      "importance": 2,
      "event": "USS名古屋会場にポスコンピュータシステムを導入",
      "detail": "",
      "significance": "黎明期からのIT化志向",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/7",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "株式会社ユー・エス・エス九州設立",
      "detail": "九州会場運営の子会社化",
      "significance": "地域展開の体制整備",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/3",
      "category": "組織再編|業態転換",
      "region": "",
      "importance": 3,
      "event": "九州子会社を吸収合併、商号をユー・エス・エスに変更",
      "detail": "愛知自動車総合サービス株式会社から商号変更",
      "significance": "グループ統合と社名統一",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/7",
      "category": "新規事業|IT投資",
      "region": "",
      "importance": 3,
      "event": "衛星TVオートオークション開始",
      "detail": "USSジャパンが運営",
      "significance": "衛星セリ＝物理移動不要のリモート取引のさきがけ",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/4",
      "category": "設備投資|IT投資",
      "region": "",
      "importance": 2,
      "event": "USS名古屋会場を新築移転・同時2レーン・セリシステム導入",
      "detail": "",
      "significance": "セリの大規模化と効率化",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/10",
      "category": "IT投資",
      "region": "",
      "importance": 2,
      "event": "USS東京会場に全車映像・完全同時2レーン・セリシステム導入",
      "detail": "",
      "significance": "映像化と同時複数レーン体制の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/1",
      "category": "IT投資|設備投資",
      "region": "",
      "importance": 2,
      "event": "USS東京会場に同時4レーン・セリシステム導入",
      "detail": "",
      "significance": "スループット拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/9",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "名古屋証券取引所市場第2部に株式上場",
      "detail": "",
      "significance": "公開企業化",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/12",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東京証券取引所市場第1部に株式上場・名証1部指定",
      "detail": "",
      "significance": "本則市場昇格と知名度向上",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/10",
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "カークエスト・ワールド自動車を完全子会社化",
      "detail": "",
      "significance": "小売・買取領域の取り込み",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/1",
      "category": "IT投資|設備投資",
      "region": "",
      "importance": 3,
      "event": "USS東京会場で同時10レーン・セリシステム導入",
      "detail": "",
      "significance": "業界最大規模の処理能力",
      "source": "有価証券報告書"
    },
    {
      "date": "2014/1",
      "category": "IT投資|新規事業",
      "region": "",
      "importance": 2,
      "event": "USSプライスチャージ・USSオートオークションネット拡充",
      "detail": "ネット出品・落札の拡張",
      "significance": "オークションのデジタル化推進",
      "source": "有価証券報告書"
    },
    {
      "date": "2018/12",
      "category": "業態転換|新規事業",
      "region": "",
      "importance": 2,
      "event": "中古車AIに関する取り組み開始",
      "detail": "デジタルプラットフォーム化",
      "significance": "データ活用の本格化",
      "source": "有価証券報告書"
    },
    {
      "date": "2020/7",
      "category": "事業売却|構造改革",
      "region": "",
      "importance": 2,
      "event": "アールエスシー（USS流通AA）の再編",
      "detail": "グループ会場体制の整理",
      "significance": "会場再編による収益性改善",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/1",
      "category": "社長交代",
      "region": "",
      "importance": 3,
      "event": "代表取締役社長兼COO に瀬田大氏が就任",
      "detail": "会長CEO は安藤之弘氏が継続",
      "significance": "生え抜きトップ交代でガバナンス進化",
      "source": "有価証券報告書"
    }
  ]
}