{
  "timeline": [
    {
      "date": "1966/4",
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "中央製作所として設立し名古屋工場・東京/大阪支店・本社業務部を開設",
      "detail": "本社愛知県名古屋市",
      "significance": "パチンコ機械事業の祖業立ち上げ",
      "source": "有価証券報告書"
    },
    {
      "date": "1966/5",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "三共製作所へ商号変更",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1966/11",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "三共へ商号変更",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/11",
      "category": "チャネル改革",
      "region": "",
      "importance": 1,
      "event": "福岡市に九州支店を開設",
      "detail": "九州地区販売拠点",
      "significance": "販売網拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "1969/4",
      "category": "チャネル改革",
      "region": "",
      "importance": 1,
      "event": "札幌市に札幌支店を開設",
      "detail": "",
      "significance": "販売網拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "1970/9",
      "category": "チャネル改革",
      "region": "",
      "importance": 1,
      "event": "広島市に広島支店を開設",
      "detail": "",
      "significance": "販売網拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "1970/11",
      "category": "チャネル改革",
      "region": "",
      "importance": 1,
      "event": "仙台市に仙台支店を開設",
      "detail": "",
      "significance": "販売網拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/4",
      "category": "チャネル改革",
      "region": "",
      "importance": 1,
      "event": "群馬県桐生市に北関東支店を開設",
      "detail": "後に高崎市に移転",
      "significance": "販売網拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/5",
      "category": "チャネル改革",
      "region": "",
      "importance": 1,
      "event": "名古屋市に名古屋支店を開設",
      "detail": "",
      "significance": "販売網拡張",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/11",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "群馬県桐生市に桐生工場を開設",
      "detail": "生産拡大",
      "significance": "主力生産拠点の整備",
      "source": "有価証券報告書"
    },
    {
      "date": "1980/7",
      "category": "新規事業",
      "region": "",
      "importance": 3,
      "event": "超特電機フィーバーを発売",
      "detail": "",
      "significance": "フィーバー機ヒットでパチンコ業界を一変させた金字塔商品",
      "source": "有価証券報告書"
    },
    {
      "date": "1981/4",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "本社を群馬県桐生市に移転",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/4",
      "category": "組織再編",
      "region": "",
      "importance": 2,
      "event": "三共産業に吸収合併され商号を三共に変更",
      "detail": "単位株制度導入のため",
      "significance": "持株関連の組織再編",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/8",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "定款上の商号を株式会社ＳＡＮＫＹＯに変更",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/10",
      "category": "株式上場",
      "region": "",
      "importance": 2,
      "event": "日本証券業協会に株式を店頭売買銘柄として登録",
      "detail": "",
      "significance": "資本市場入りの第一歩",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/3",
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "三共化成（現三共エクセル）を買収",
      "detail": "",
      "significance": "部品子会社の取り込み",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/4",
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "ダイワ電機製作所（現三共エクセル）を買収",
      "detail": "",
      "significance": "部品子会社の取り込み",
      "source": "有価証券報告書"
    },
    {
      "date": "1994/9",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "パールライン事業部をパーラー事業部に組織変更",
      "detail": "POSシステム販売開始に伴う",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/8",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東京証券取引所市場第二部に株式を上場",
      "detail": "",
      "significance": "資本市場経由での成長基盤確立",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/3",
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "大同（現ビスティ）を買収",
      "detail": "",
      "significance": "連結子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "1997/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "商品本部を新設",
      "detail": "研究開発体制の強化",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1997/9",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東京証券取引所市場第一部銘柄に指定",
      "detail": "",
      "significance": "大企業ステージへの格上げ",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/4",
      "category": "設備投資",
      "region": "",
      "importance": 3,
      "event": "群馬県伊勢崎市に三和工場を開設し桐生工場から生産拠点を移転",
      "detail": "",
      "significance": "主力生産拠点の刷新",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/10",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "三共化成がダイワ電機製作所と合併し三共エクセルに商号変更",
      "detail": "",
      "significance": "部品子会社統合",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/7",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "管理本部を新設",
      "detail": "管理機能強化",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "知的財産本部を新設",
      "detail": "",
      "significance": "知財重視へのシフト",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/4",
      "category": "ガバナンス改革",
      "region": "",
      "importance": 3,
      "event": "ＣＥＯ・ＣＯＯ体制と執行役員制度を導入",
      "detail": "",
      "significance": "業務執行と監督の分離",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/4",
      "category": "ガバナンス改革",
      "region": "",
      "importance": 1,
      "event": "内部監査室を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/8",
      "category": "",
      "region": "",
      "importance": 2,
      "event": "本社を東京都渋谷区に移転",
      "detail": "",
      "significance": "本社機能の都心化",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/6",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "東京都渋谷区に研究開発棟完成",
      "detail": "",
      "significance": "R&D拠点都心化",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "商品本部に商品戦略室を新設",
      "detail": "2020年4月に商品戦略部へ名称変更",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "商品本部にＰＳ開発部を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/3",
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "ジェイビーを買収",
      "detail": "",
      "significance": "連結子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "商品本部に商品企画部を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "事業企画部を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2018/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "商品本部に業務部を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "category": "株式上場",
      "region": "",
      "importance": 2,
      "event": "東証市場区分見直しによりプライム市場へ移行",
      "detail": "",
      "significance": "プライム上場維持",
      "source": "有価証券報告書"
    },
    {
      "date": "2023/4",
      "category": "IT投資",
      "region": "",
      "importance": 2,
      "event": "情報システム本部を新設",
      "detail": "ITインフラの整備構築",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "営業本部に販売管理部を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/4",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "秘書室を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    }
  ]
}