{
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  "stock_code": "4966",
  "company_name": "上村工業",
  "content_lang": "ja",
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  "updated": "2026-08-10",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/4966/",
  "source": {
    "primary": [
      "有価証券報告書"
    ],
    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
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  "timeline": [
    {
      "date": "1933/12",
      "importance": 3,
      "event": "研磨材と工業用化学品を扱う上村長兵衞商店を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1933/12",
      "importance": 1,
      "event": "東京市浅草区（現・東京都台東区）に東京営業所を設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1938/3",
      "importance": 1,
      "event": "東京営業所を東京支店に昇格",
      "source": "有価証券報告書"
    },
    {
      "date": "1942/10",
      "importance": 1,
      "event": "大阪市東淀川区（現・淀川区）に淀川工場を設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1946/5",
      "importance": 2,
      "event": "淀川工場で研磨材の製造を再開",
      "source": "有価証券報告書"
    },
    {
      "date": "1949/8",
      "importance": 2,
      "event": "大阪市阿倍野区に住吉工場を設置し塩化ビニールシートの製造を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1950/3",
      "importance": 1,
      "event": "東京都北区に東京工場を設置し研磨材の製造を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1957/9",
      "importance": 3,
      "event": "めっき用化学品の製造を開始",
      "source": "有価証券報告書",
      "link": "/tse/4966/decisions/plating-chemicals-1957/"
    },
    {
      "date": "1960/7",
      "importance": 1,
      "event": "名古屋市西区に名古屋営業所を設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1960/9",
      "importance": 3,
      "event": "機械事業部を設置し表面処理用機械の製作を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1963/9",
      "importance": 1,
      "event": "めっき加工技術の研究を目的に三和防錆（のちサミックス）を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1964/2",
      "importance": 1,
      "event": "東京工場を埼玉県戸田市に移転",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/3",
      "importance": 1,
      "event": "名古屋営業所を名古屋支店に昇格",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/7",
      "importance": 3,
      "event": "大阪府枚方市に枚方工場が竣工し中央研究所を設置",
      "source": "有価証券報告書",
      "link": "/tse/4966/decisions/central-lab-hirakata-1968/"
    },
    {
      "date": "1969/1",
      "importance": 1,
      "event": "商号を上村工業に変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1970/2",
      "importance": 1,
      "event": "東京工場を閉鎖",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/2",
      "importance": 2,
      "event": "西独デグサ社と販売提携し金めっき浴を発売",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/5",
      "importance": 1,
      "event": "表面処理用機械の製造を枚方工場へ移し淀川工場を閉鎖",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/5",
      "importance": 2,
      "event": "デグサ社と技術提携しアルミ真空蒸着加工技術を導入",
      "source": "有価証券報告書"
    },
    {
      "date": "1984/3",
      "importance": 1,
      "event": "神奈川県相模原市に相模原事業所を設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1985/12",
      "importance": 3,
      "event": "米国にウエムラ・インターナショナル・コーポレーションを設立",
      "source": "有価証券報告書",
      "link": "/tse/4966/decisions/overseas-follow-customers-1985/"
    },
    {
      "date": "1986/2",
      "importance": 2,
      "event": "香港に合弁で上村旭光有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/6",
      "importance": 1,
      "event": "台湾に合弁で台湾上村股份有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/12",
      "importance": 1,
      "event": "タイに合弁でサムハイテックス（現・ウエムラ・タイランド）を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1988/3",
      "importance": 1,
      "event": "中国深圳市に合弁で南山上村旭光有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/2",
      "importance": 1,
      "event": "東京支店を東京支社に昇格",
      "source": "有価証券報告書"
    },
    {
      "date": "1991/6",
      "importance": 1,
      "event": "独デメトロン社へ無電解ニッケルめっき薬品の技術を供与",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/5",
      "importance": 1,
      "event": "シンガポールにウエムラ・インターナショナル・シンガポールを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/12",
      "importance": 1,
      "event": "米国にウエムラ・インターナショナル・コーポレーションを新設",
      "source": "有価証券報告書"
    },
    {
      "date": "1993/5",
      "importance": 1,
      "event": "旧淀川工場跡に上村ニッセイビルが竣工し不動産賃貸業を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1995/4",
      "importance": 1,
      "event": "岐阜県土岐市にユーテックを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1996/7",
      "importance": 1,
      "event": "マレーシアにウエムラ・マレーシアを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1997/1",
      "importance": 2,
      "event": "上村寛也氏が代表取締役社長に就任",
      "source": "有価証券報告書"
    },
    {
      "date": "1997/11",
      "importance": 1,
      "event": "大阪証券取引所市場第二部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/10",
      "importance": 1,
      "event": "相模原事業所を閉鎖",
      "source": "有価証券報告書"
    },
    {
      "date": "2001/10",
      "importance": 1,
      "event": "ユーテックの清算が結了",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/4",
      "importance": 1,
      "event": "中国上海市に上村化学（上海）有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/10",
      "importance": 1,
      "event": "台湾に台湾上村科技股份有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/11",
      "importance": 1,
      "event": "中国深圳市龍崗区に上村工業（深圳）有限公司の新工場が竣工",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/12",
      "importance": 1,
      "event": "東京支社を東京都台東区から中央区へ移転",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/7",
      "importance": 1,
      "event": "大韓民国京畿道に韓国上村を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/12",
      "importance": 1,
      "event": "台湾上村股份有限公司が台湾上村科技股份有限公司を吸収合併",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/8",
      "importance": 1,
      "event": "インドネシアにウエムラ・インドネシアを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/6",
      "importance": 1,
      "event": "枚方市に新中央研究所が竣工",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/7",
      "importance": 1,
      "event": "取引所統合に伴い東京証券取引所市場第二部に上場",
      "source": "有価証券報告書"
    },
    {
      "date": "2019/12",
      "importance": 1,
      "event": "名古屋支店の新社屋が完成",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "市場再編に伴い東京証券取引所スタンダード市場へ移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2023/11",
      "importance": 1,
      "event": "枚方市に新機械工場が竣工",
      "source": "有価証券報告書"
    },
    {
      "date": "2024/4",
      "importance": 1,
      "event": "子会社サミックスを吸収合併",
      "source": "有価証券報告書"
    }
  ]
}