{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "4217",
  "company_name": "日立化成",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/4217/",
  "api_url": "/api/4217/decisions.json",
  "updated": "2026-08-25",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/4217/",
  "count": 3,
  "description": "Index of this company's management decisions. One decision = one endpoint: follow api_url for the full dossier (background, the decision itself, outcome, quoted primary sources and references).",
  "decisions": [
    {
      "slug": "early-restructuring-1991",
      "url": "/tse/4217/decisions/early-restructuring-1991/",
      "api_url": "/api/4217/decisions/early-restructuring-1991.json",
      "year": 1991,
      "month": 6,
      "type": "restructuring",
      "tags": [
        "tr-restructuring",
        "pf-exit",
        "pf-focus"
      ],
      "title": "好況期に着手した低収益製品の選別と不採算製品からの撤退",
      "subtitle": "過去最高の売上を計上した期に、丹野毅社長はなぜ製品の絞り込みを始めたか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "housetec-divestiture-2008",
      "url": "/tse/4217/decisions/housetec-divestiture-2008/",
      "api_url": "/api/4217/decisions/housetec-divestiture-2008.json",
      "year": 2008,
      "month": null,
      "type": "divestiture",
      "tags": [
        "pf-exit",
        "pf-focus",
        "tr-restructuring"
      ],
      "title": "日立ハウステック株式のニューホライズンキャピタルへの譲渡と住宅設備事業からの撤退",
      "subtitle": "独立初期を支えた住宅設備を、電子材料メーカーはなぜ手放したか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "showa-denko-tob-2020",
      "url": "/tse/4217/decisions/showa-denko-tob-2020/",
      "api_url": "/api/4217/decisions/showa-denko-tob-2020.json",
      "year": 2020,
      "month": null,
      "type": "acquisition",
      "tags": [
        "cp-delisting",
        "ma-merger"
      ],
      "title": "昭和電工による9,640億円のTOBでの完全子会社化と東証1部上場廃止",
      "subtitle": "自主独立を保った日立系材料メーカーは、なぜ親会社の手で化学専業の傘下へ売られたか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "acquisition",
      "count": 1,
      "url": "/api/4217/decisions/by-type/acquisition.json"
    },
    {
      "key": "divestiture",
      "count": 1,
      "url": "/api/4217/decisions/by-type/divestiture.json"
    },
    {
      "key": "restructuring",
      "count": 1,
      "url": "/api/4217/decisions/by-type/restructuring.json"
    }
  ],
  "by_decade": [
    {
      "key": "1990s",
      "count": 1,
      "url": "/api/4217/decisions/by-decade/1990s.json"
    },
    {
      "key": "2000s",
      "count": 1,
      "url": "/api/4217/decisions/by-decade/2000s.json"
    },
    {
      "key": "2020s",
      "count": 1,
      "url": "/api/4217/decisions/by-decade/2020s.json"
    }
  ]
}