{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "6503",
  "company_name": "三菱電機",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/6503/",
  "api_url": "/api/6503/decisions.json",
  "updated": "2026-08-05",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/6503/",
  "count": 7,
  "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": "westinghouse-alliance-1951",
      "url": "/tse/6503/decisions/westinghouse-alliance-1951/",
      "api_url": "/api/6503/decisions/westinghouse-alliance-1951.json",
      "year": 1951,
      "month": 4,
      "type": "alliance",
      "tags": [
        "st-tech",
        "cp-crossholding"
      ],
      "title": "米ウエスチングハウスとの技術・資本提携の復活と、「三菱」商号の存続",
      "subtitle": "商号を失えば提携はない——ロイヤリティを払って技術系列に戻るか、自力で追いつくか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "semiconductor-entry-1959",
      "url": "/tse/6503/decisions/semiconductor-entry-1959/",
      "api_url": "/api/6503/decisions/semiconductor-entry-1959.json",
      "year": 1959,
      "month": 8,
      "type": "new_business",
      "tags": [
        "pf-vertical",
        "st-tech",
        "st-capex"
      ],
      "title": "半導体量産専門工場・北伊丹工場の新設と、西条・高知への量産設備の拡大",
      "subtitle": "電子部品を外から買うか、自ら量産するか——重電と家電の会社が「電子産業のコメ」に投じた四半世紀",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "market-oriented-shift-1977",
      "url": "/tse/6503/decisions/market-oriented-shift-1977/",
      "api_url": "/api/6503/decisions/market-oriented-shift-1977.json",
      "year": 1977,
      "month": 6,
      "type": "transformation",
      "tags": [
        "bm-channel",
        "st-brand",
        "tr-turnaround"
      ],
      "title": "生産志向型の事業部編成の見直しと、営業本部・4事業本部制への移行",
      "subtitle": "作れば売れた名門は、売る力をどう作り直したか——生産の都合で引かれた事業の線を、客の側から引き直す",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "kitaoka-restructuring-1994",
      "url": "/tse/6503/decisions/kitaoka-restructuring-1994/",
      "api_url": "/api/6503/decisions/kitaoka-restructuring-1994.json",
      "year": 1994,
      "month": 3,
      "type": "restructuring",
      "tags": [
        "pf-focus",
        "tr-restructuring",
        "gv-succession"
      ],
      "title": "「万年3位」からの脱却を掲げた北岡改革と、半導体投資の誤算による引責辞任",
      "subtitle": "「最も変化に縁遠い大企業」をどう変えるか——重電出身でない初の社長が挑んだ選択と集中は、なぜ道半ばで潰えたか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "dram-exit-1998",
      "url": "/tse/6503/decisions/dram-exit-1998/",
      "api_url": "/api/6503/decisions/dram-exit-1998.json",
      "year": 1998,
      "month": 2,
      "type": "divestiture",
      "tags": [
        "pf-exit",
        "pf-focus"
      ],
      "title": "汎用DRAM事業からの撤退と、システムLSI・パワー半導体への「選択の時代」",
      "subtitle": "「百貨店型」の総花的な半導体をどう畳むか——コスト勝負のDRAMを捨て、三菱電機は半導体で何に賭け直したか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "quality-misconduct-2021",
      "url": "/tse/6503/decisions/quality-misconduct-2021/",
      "api_url": "/api/6503/decisions/quality-misconduct-2021.json",
      "year": 2021,
      "month": 7,
      "type": "misconduct",
      "tags": [
        "tr-scandal",
        "gv-succession"
      ],
      "title": "鉄道車両用空調の架空検査発覚と、杉山武史社長の引責辞任・漆間啓体制での品質風土改革",
      "subtitle": "35年続いた検査不正をどう畳むか——「品質への誠実さ」を欠いた総合電機大手は、トップ交代と組織改革で立て直せるか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "mobility-spinoff-2024",
      "url": "/tse/6503/decisions/mobility-spinoff-2024/",
      "api_url": "/api/6503/decisions/mobility-spinoff-2024.json",
      "year": 2024,
      "month": null,
      "type": "reorganization",
      "tags": [
        "cp-spinoff",
        "pf-focus",
        "pf-exit",
        "cp-crossholding"
      ],
      "title": "自動車機器事業の会社分割による分社化と三菱電機モビリティの設立、鴻海精密工業への出資受け入れの検討",
      "subtitle": "総合電機の内側で立て直すか、外部の資本と組むか——CASE下で赤字が続いた車載事業をどこに置くか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "alliance",
      "count": 1,
      "url": "/api/6503/decisions/by-type/alliance.json"
    },
    {
      "key": "divestiture",
      "count": 1,
      "url": "/api/6503/decisions/by-type/divestiture.json"
    },
    {
      "key": "misconduct",
      "count": 1,
      "url": "/api/6503/decisions/by-type/misconduct.json"
    },
    {
      "key": "new_business",
      "count": 1,
      "url": "/api/6503/decisions/by-type/new_business.json"
    },
    {
      "key": "reorganization",
      "count": 1,
      "url": "/api/6503/decisions/by-type/reorganization.json"
    },
    {
      "key": "restructuring",
      "count": 1,
      "url": "/api/6503/decisions/by-type/restructuring.json"
    },
    {
      "key": "transformation",
      "count": 1,
      "url": "/api/6503/decisions/by-type/transformation.json"
    }
  ],
  "by_decade": [
    {
      "key": "1950s",
      "count": 2,
      "url": "/api/6503/decisions/by-decade/1950s.json"
    },
    {
      "key": "1970s",
      "count": 1,
      "url": "/api/6503/decisions/by-decade/1970s.json"
    },
    {
      "key": "1990s",
      "count": 2,
      "url": "/api/6503/decisions/by-decade/1990s.json"
    },
    {
      "key": "2020s",
      "count": 2,
      "url": "/api/6503/decisions/by-decade/2020s.json"
    }
  ]
}