{
  "spec_version": "5",
  "endpoint": "ceo-person",
  "stock_code": "5481",
  "company_name": "山陽特殊製鋼",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/5481/executives/ceo/miyamoto-katsuhiro/",
  "api_url": "/api/5481/ceo/miyamoto-katsuhiro.json",
  "updated": "2026-10-13",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/5481/executives/ceo/miyamoto-katsuhiro/",
  "source": {
    "person": {
      "primary": [
        "有価証券報告書（役員の状況）"
      ],
      "extraction": "EDINET の XBRL から機械抽出した役員表を土台に、雑誌記事・社史・報道で経歴と出自を補完",
      "caveat": "在任区間は career の is_ceo_appointed が正本。退任年月は次の代の就任年月から決まる"
    }
  },
  "person": {
    "slug": "miyamoto-katsuhiro",
    "name": "宮本勝弘",
    "surname": "宮本",
    "given_name": "勝弘",
    "origin": "日本製鉄出身（2021年就任）",
    "origin_type": "外部出身",
    "hometown": null,
    "education": null,
    "prev_role": "日本製鉄代表取締役副社長",
    "career": [
      {
        "company": "新日鐵住金",
        "from": null,
        "to": "2019-04",
        "roles": [
          {
            "date": "2018-06",
            "role": "代表取締役副社長"
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      },
      {
        "company": "日本製鉄",
        "from": "2019-04",
        "to": null,
        "roles": [
          {
            "date": "2019-04",
            "role": "代表取締役副社長グローバル事業推進本部長"
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            "date": "2021-04",
            "role": "取締役"
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        "to": null,
        "roles": [
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            "date": "2021-04",
            "role": "顧問"
          },
          {
            "date": "2021-06",
            "role": "代表取締役社長",
            "is_ceo_appointed": true
          },
          {
            "date": "2025-06",
            "role": "取締役相談役",
            "is_ceo_retired": true,
            "retirement_basis": "next_ceo"
          }
        ]
      },
      {
        "company": "Ovako Group AB",
        "from": "2021-06",
        "to": null,
        "concurrent": true,
        "roles": [
          {
            "date": "2021-06",
            "role": "BOARD MEMBER",
            "CHAIR OF THE BOARD": null
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/5481/executives/ceo/miyamoto-katsuhiro/",
    "term_start": "2021-06",
    "term_end": "2025-06",
    "api_url": "https://the-shashi.com/api/5481/ceo/miyamoto-katsuhiro.json",
    "list_api_url": "https://the-shashi.com/api/5481/ceo.json",
    "predecessor": {
      "slug": "higuchi-shinya",
      "name": "樋口眞哉",
      "api_url": "https://the-shashi.com/api/5481/ceo/higuchi-shinya.json"
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    "successor": null
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}