{
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  "endpoint": "timeline",
  "stock_code": "1331",
  "company_name": "ニチロ",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/1331/",
  "api_url": "/api/1331/timeline.json",
  "updated": "2026-08-05",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/1331/",
  "source": {
    "primary": [
      "有価証券報告書",
      "証券アナリストジャーナル 1978年11月号",
      "週刊東洋経済 2001年2月24日号",
      "有価証券報告書（マルハニチロホールディングス）"
    ],
    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
    "row_field": "source"
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  "timeline": [
    {
      "date": "1906/11",
      "importance": 3,
      "event": "堤清六氏と平塚常次郎氏が新潟市に堤商会を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1907/6",
      "importance": 2,
      "event": "帆船「宝寿丸」で北洋漁場に初出漁",
      "source": "有価証券報告書"
    },
    {
      "date": "1910/5",
      "importance": 2,
      "event": "さけ缶詰の製造を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1914/3",
      "importance": 3,
      "event": "北洋のサケ・マス漁業を目的に函館で日魯漁業を設立",
      "source": "有価証券報告書",
      "link": "/tse/1331/decisions/hokuyo-salmon-canning-1914/"
    },
    {
      "date": "1919/12",
      "importance": 1,
      "event": "堤商会を極東漁業に改組",
      "source": "有価証券報告書"
    },
    {
      "date": "1921/3",
      "importance": 3,
      "event": "輸出食品・勘察加漁業・日魯漁業の三社が合併",
      "source": "有価証券報告書"
    },
    {
      "date": "1921/3",
      "importance": 1,
      "event": "本社を東京市日本橋区に設置",
      "source": "有価証券報告書"
    },
    {
      "date": "1945/8",
      "importance": 3,
      "event": "終戦により在外全資産を喪失",
      "source": "有価証券報告書"
    },
    {
      "date": "1946/8",
      "importance": 1,
      "event": "稚内事業所を開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1948/5",
      "importance": 1,
      "event": "久里浜支社石巻支所を開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1949/5",
      "importance": 1,
      "event": "東京証券取引所、名古屋証券取引所、大阪証券取引所に株式を上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1950/1",
      "importance": 1,
      "event": "造船・造機部門を分離して日新造船を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1952/5",
      "importance": 3,
      "event": "北洋母船式サケ・マス漁業を再開",
      "source": "有価証券報告書"
    },
    {
      "date": "1959/5",
      "importance": 1,
      "event": "新日本海獣を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1961/6",
      "importance": 1,
      "event": "釧路事業所を開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1962/5",
      "importance": 1,
      "event": "森事業所を開設",
      "source": "有価証券報告書"
    },
    {
      "date": "1968/11",
      "importance": 2,
      "event": "宮畜産を子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "1969/7",
      "importance": 1,
      "event": "本社を東京都千代田区有楽町に移転",
      "source": "有価証券報告書"
    },
    {
      "date": "1975/6",
      "importance": 1,
      "event": "北海道畜産事業部を分離してニチロ畜産を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1977",
      "importance": 3,
      "event": "二百カイリの漁業専管水域設定により北洋の漁獲枠が縮小",
      "source": "証券アナリストジャーナル 1978年11月号",
      "link": "/tse/1331/decisions/onshore-processing-shift-1977/"
    },
    {
      "date": "1979/9",
      "importance": 2,
      "event": "米国のピーターパン・シーフーズを子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "1986/12",
      "importance": 1,
      "event": "米国のゴールデンアラスカ・シーフーズを子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "1988/6",
      "importance": 2,
      "event": "母船式サケ・マス事業八社共同経営による一船団出漁",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/2",
      "importance": 1,
      "event": "決算期を3月31日に変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/1",
      "importance": 2,
      "event": "商号をニチロに変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1999/9",
      "importance": 3,
      "event": "冷凍食品「そばめし」を発売",
      "source": "週刊東洋経済 2001年2月24日号",
      "link": "/tse/1331/decisions/frozen-foods-focus-2001/"
    },
    {
      "date": "2000/2",
      "importance": 1,
      "event": "ニチロサンフーズ株式を日本証券業協会に登録",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/11",
      "importance": 1,
      "event": "冷凍デザート事業のサングルメを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/4",
      "importance": 3,
      "event": "冷凍食品製造販売のアクリフーズを子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/11",
      "importance": 2,
      "event": "ほくれいを子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/10",
      "importance": 1,
      "event": "ニチロサンパックを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2007/10",
      "importance": 3,
      "event": "マルハグループ本社と経営統合",
      "source": "有価証券報告書（マルハニチロホールディングス）",
      "link": "/tse/1333/decisions/maruha-nichiro-merger-2007/"
    }
  ]
}