{
  "timeline": [
    {
      "date": "1960/12",
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "ユニオン化学研究所として創業",
      "detail": "東京都大田区で片山一郎が設立しドリル・エンドミル等の超硬精密工具の試作研究を開始",
      "significance": "後のPCBドリル世界トップへ発展する源流",
      "source": "有価証券報告書"
    },
    {
      "date": "1970/3",
      "category": "設備投資|新規事業",
      "region": "",
      "importance": 3,
      "event": "本社工場を新設しPCBドリルの生産開始",
      "detail": "プリント配線板用超硬ドリル分野へ参入",
      "significance": "後の主力事業となるPCBドリル事業の出発点",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/4",
      "category": "新規事業",
      "region": "",
      "importance": 2,
      "event": "工作機械製造部門を設置しドリルポインターの生産開始",
      "detail": "刃先研磨機の自社生産",
      "significance": "工具と研磨機の垂直統合の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/5",
      "category": "新規事業",
      "region": "",
      "importance": 3,
      "event": "商号をユニオンツールに変更しPCBドリル本格生産開始",
      "detail": "主力事業確立と社名一致",
      "significance": "PCBドリル専業メーカーとしての位置付けが明確化",
      "source": "有価証券報告書"
    },
    {
      "date": "1976/12",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "新潟県長岡市にローラーガイド専用工場を設置",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1979/7",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "長岡工場を新潟県長岡市摂田屋町に新設移転",
      "detail": "生産能力増強",
      "significance": "長岡を主力生産拠点とする方針が定着",
      "source": "有価証券報告書"
    },
    {
      "date": "1981/3",
      "category": "合弁設立|海外進出",
      "region": "米州",
      "importance": 2,
      "event": "米加州にMEGATOOL INCを合弁設立",
      "detail": "現US UNION TOOL、PCBドリルの北米現地生産開始",
      "significance": "北米市場参入の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/11",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "新潟県長岡市に関連会社大善を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/1",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "長岡工場第二工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/3",
      "category": "海外進出|設備投資",
      "region": "中国",
      "importance": 2,
      "event": "台湾に台湾佑能工具を設立",
      "detail": "PCBドリルの現地生産",
      "significance": "アジア生産拠点の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1988/12",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "長岡工場熱処理棟を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/6",
      "category": "株式上場",
      "region": "",
      "importance": 2,
      "event": "日本証券業協会に店頭登録",
      "detail": "",
      "significance": "公開企業化の第一歩",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/6",
      "category": "海外進出",
      "region": "欧州",
      "importance": 2,
      "event": "スイスに販売子会社UNION TOOL EUROPEを設立",
      "detail": "欧州販売会社の資本関係再編",
      "significance": "欧州販売網の整備",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/4",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "長岡工場第三工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1994/10",
      "category": "企業買収",
      "region": "米州",
      "importance": 1,
      "event": "MEGATOOLの株式を取得し子会社化",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/4",
      "category": "企業買収",
      "region": "",
      "importance": 2,
      "event": "海外子会社MEGATOOLとUNION TOOL EUROPEを100％子会社化",
      "detail": "海外販売網の完全子会社化",
      "significance": "グローバル販売体制の一本化",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/12",
      "category": "海外進出",
      "region": "中国",
      "importance": 2,
      "event": "中国に佑能工具（上海）を設立",
      "detail": "中国市場開拓拠点",
      "significance": "中国本土への進出の起点",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/1",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "本社事務所を東京都品川区南大井に移設",
      "detail": "翌月本店所在地に",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/3",
      "category": "研究開発|設備投資",
      "region": "",
      "importance": 2,
      "event": "静岡県長泉町に三島研究所を開設",
      "detail": "研究開発拠点",
      "significance": "新製品開発の中核拠点",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/9",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東証二部に株式を上場",
      "detail": "",
      "significance": "本格的な公開企業への移行",
      "source": "有価証券報告書"
    },
    {
      "date": "1997/8",
      "category": "企業買収",
      "region": "東南アジア",
      "importance": 1,
      "event": "台湾佑能工具を100％子会社化",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1997/11",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "長岡工場第四工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1998/2",
      "category": "海外進出",
      "region": "中国",
      "importance": 1,
      "event": "香港にUNION TOOL HONG KONGを設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1998/5",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東証一部に株式を上場",
      "detail": "",
      "significance": "東証一部上場により資本市場での地位確立",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/7",
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "超硬エンドミルUTドライを開発・生産開始",
      "detail": "エンドミル分野での新製品",
      "significance": "PCBドリル以外の精密切削工具事業の強化",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/5",
      "category": "海外進出",
      "region": "東南アジア",
      "importance": 1,
      "event": "シンガポールに販売子会社を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/8",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "長岡工場第五工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/11",
      "category": "海外進出|設備投資",
      "region": "中国",
      "importance": 2,
      "event": "中国に東莞佑能工具を設立",
      "detail": "中国南部の生産拠点",
      "significance": "中国生産能力の倍増",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/4",
      "category": "海外進出",
      "region": "中国",
      "importance": 1,
      "event": "中国に優能工具（上海）を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2005/9",
      "category": "海外撤退",
      "region": "米州",
      "importance": 2,
      "event": "US UNION TOOLのPCBドリル現地生産を中止",
      "detail": "北米生産を停止しアジア生産へ集約",
      "significance": "生産のアジア集中体制への転換",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/10",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "新潟県見附市に見附工場を開設",
      "detail": "長岡に次ぐ新拠点",
      "significance": "生産能力拡張の新しい軸",
      "source": "有価証券報告書"
    },
    {
      "date": "2008/2",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "長岡工場内にユニオンエンジニアリングを設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/6",
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "ULFコートドリル・新接合ドリルを開発・生産開始",
      "detail": "PCBドリルの高付加価値新製品",
      "significance": "微細加工対応の競争力強化",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/11",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "本店を東京都品川区南大井六丁目に移転",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/5",
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "ダイヤモンドコーティングエンドミルUDCシリーズを開発",
      "detail": "エンドミルの新シリーズ",
      "significance": "高硬度材加工分野への対応強化",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/6",
      "category": "組織再編",
      "region": "",
      "importance": 1,
      "event": "本社内にユニオンビジネスサービスを設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2016/12",
      "category": "設備投資",
      "region": "",
      "importance": 2,
      "event": "見附第二工場を新設",
      "detail": "生産能力増強",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/4",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "長岡工場敷地内に事業所内保育園を開設",
      "detail": "地域開放型ゆにおんの杜南陽保育園",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2017/12",
      "category": "海外進出",
      "region": "東南アジア",
      "importance": 2,
      "event": "タイにUNION TOOL THAILANDを設立",
      "detail": "東南アジア生産・販売拠点",
      "significance": "東南アジア展開の本格化",
      "source": "有価証券報告書"
    },
    {
      "date": "2021/5",
      "category": "研究開発",
      "region": "",
      "importance": 2,
      "event": "超硬エンドミルVシリーズを開発・生産開始",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "東証プライム市場へ移行",
      "detail": "市場区分見直し",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/5",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "見附第三工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    }
  ]
}