{
  "contentStorage": "postgres",
  "title": "East Japan Railway Company (JR East) · Relations",
  "description": "The largest JR company serving eastern Japan, operating the Tohoku, Joetsu and Hokuriku Shinkansen and the capital region's commuter network.",
  "url": "/en/organizations/jp-jr-east/relation.html",
  "entity": {
    "id": "org_japan_jr_east",
    "type": "organization",
    "title": "East Japan Railway Company (JR East)",
    "slug": "jp-jr-east",
    "summary": "The largest JR company serving eastern Japan, operating the Tohoku, Joetsu and Hokuriku Shinkansen and the capital region's commuter network.",
    "status": "published",
    "categories": [
      "category-transit",
      "category-history"
    ],
    "tags": [
      "tag-rail"
    ],
    "sources": [
      {
        "id": "ja-wiki",
        "title": "東日本旅客鉄道（JR東日本）",
        "url": "https://ja.wikipedia.org/wiki/%E6%9D%B1%E6%97%A5%E6%9C%AC%E6%97%85%E5%AE%A2%E9%89%84%E9%81%93%EF%BC%88JR%E6%9D%B1%E6%97%A5%E6%9C%AC%EF%BC%89",
        "locator": "日本語ウィキペディア・公式サイト, 2026-10-28確認"
      }
    ],
    "createdAt": "2026-10-28T00:00:00+08:00",
    "updatedAt": "2026-10-28T00:00:00+08:00",
    "updatedBy": "user:admin",
    "revision": 12,
    "body": "## Overview\n\nEast Japan Railway Company (JR East) was founded in the 1987 JNR privatization and covers Tohoku, Kanto, Shinetsu and Niigata from its Shibuya head office. Its roughly 7,200 km network is the largest among the JR passenger companies.\n\n## History\n\n- April 1, 1987: Founded with the JNR privatization.\n- 1991: Tohoku Shinkansen reached Tokyo Station.\n- 1997: Hokuriku Shinkansen (Takasaki-Nagano) opened.\n- 2015: Ueno-Tokyo Line opened; Hokuriku Shinkansen extended to Kanazawa.\n- 2024: Hokuriku Shinkansen extended to Tsuruga.\n\n## Business\n\nThe capital region commuter network (including the [[concept_japan_rail_yamanote|Yamanote Line]]) has one of the world's highest traffic densities. The Suica IC card was introduced in 2001; station retail and real estate are major businesses.\n\n## Shinkansen\n\nJR East operates the Tohoku, Joetsu, Yamagata and Akita Shinkansen, and covers Takasaki to Joetsu-Myoko on the Hokuriku Shinkansen.",
    "url": "/organizations/jp-jr-east.html",
    "lang": "en",
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    "orgKind": "railway_company",
    "founded": {
      "year": 1987,
      "month": 4,
      "day": 1,
      "display": "1987年4月1日（国鉄分割民営化）"
    }
  },
  "entities": null,
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    {
      "fromId": "concept_japan_admin_rail_overview",
      "fromTitle": "Administrative divisions and railways of Japan",
      "fromUrl": "/en/concepts/japan-admin-rail-overview.html",
      "fromType": "concept"
    },
    {
      "fromId": "concept_japan_rail_tokaido_main",
      "fromTitle": "Tokaido Main Line",
      "fromUrl": "/en/concepts/jp-rail-tokaido-main.html",
      "fromType": "concept"
    },
    {
      "fromId": "concept_japan_rail_yamanote",
      "fromTitle": "Yamanote Line",
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    {
      "fromId": "concept_japan_shinkansen_akita",
      "fromTitle": "Akita Shinkansen",
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    {
      "fromId": "concept_japan_shinkansen_hokuriku",
      "fromTitle": "Hokuriku Shinkansen",
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      "fromType": "concept"
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    {
      "fromId": "concept_japan_shinkansen_joetsu",
      "fromTitle": "Joetsu Shinkansen",
      "fromUrl": "/en/concepts/jp-shinkansen-joetsu.html",
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    },
    {
      "fromId": "concept_japan_shinkansen_tohoku",
      "fromTitle": "Tohoku Shinkansen",
      "fromUrl": "/en/concepts/jp-shinkansen-tohoku.html",
      "fromType": "concept"
    },
    {
      "fromId": "concept_japan_shinkansen_yamagata",
      "fromTitle": "Yamagata Shinkansen",
      "fromUrl": "/en/concepts/jp-shinkansen-yamagata.html",
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    },
    {
      "fromId": "place_japan_country",
      "fromTitle": "Japan",
      "fromUrl": "/en/places/japan.html",
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    "de",
    "en",
    "fr",
    "ja"
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      "value": "railway_company"
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      "key": "founded",
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      "value": "1987年4月1日（国鉄分割民営化）"
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