{
  "timeline": [
    {
      "date": "1940/10",
      "category": "会社設立",
      "region": "",
      "importance": 3,
      "event": "資本金180千円をもって川崎市に東京応化工業株式会社を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1967/1",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "相模工場（現TOK技術革新センター）を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1981/6",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "宇都宮工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/9",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "熊谷応化(株)を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/12",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "熊谷工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1984/12",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "阿蘇工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1986/7",
      "category": "株式上場",
      "region": "",
      "importance": 3,
      "event": "東京証券取引所市場第二部へ株式を上場",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/3",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "OHKA AMERICA, INC.を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1987/6",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "御殿場工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1989/4",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "TOK INTERNATIONAL INC.を設立",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1990/9",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "東京証券取引所市場第一部に指定替え",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/10",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "ティーオーケーエンジニアリング(株)を設立（現連結子会社）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1992/12",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "TOK INTERNATIONAL INC.はOHKA AMERICA, INC.と合併し、社名をOHKA AMERICA, INC.（現TOKYO OHKA KOGYO AMERICA, INC.）に変更（現連結子会社）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1994/2",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "郡山工場を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "1998/1",
      "category": "海外進出",
      "region": "中国",
      "importance": 2,
      "event": "台湾東應化股份有限公司を設立（現連結子会社）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2000/7",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "川崎市に本社社屋完成",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2003/11",
      "category": "設備投資",
      "region": "",
      "importance": 1,
      "event": "流通センター（海老名市）を新設",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/1",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "OHKA AMERICA, INC.の社名をTOKYO OHKA KOGYO AMERICA, INC.に変更（現連結子会社）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/8",
      "category": "",
      "region": "",
      "importance": 1,
      "event": "TOK尖端材料株式会社を設立（現連結子会社）",
      "detail": "",
      "significance": "",
      "source": "有価証券報告書"
    }
  ]
}