{
  "spec_version": "6",
  "endpoint": "ceo-person",
  "stock_code": "2591",
  "company_name": "カルピス",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/2591/executives/ceo/ishiwata-souhei/",
  "api_url": "/api/2591/ceo/ishiwata-souhei.json",
  "updated": "2026-11-12",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/2591/executives/ceo/ishiwata-souhei/",
  "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": "ishiwata-souhei",
    "name": "石渡總平",
    "kana": "いしわた　そうへい",
    "surname": "石渡",
    "given_name": "總平",
    "hometown": null,
    "prev_role": null,
    "career": [
      {
        "company": "味の素",
        "from": "1968-04",
        "to": "2005-03",
        "roles": [
          {
            "date": "1968-04",
            "role": "入社",
            "event": "入社"
          },
          {
            "date": "1997-06",
            "role": "取締役調味料部長",
            "board": "取締役",
            "dept": "調味料部長"
          },
          {
            "date": "2001-06",
            "role": "常務取締役食品本部長",
            "board": "取締役",
            "title": "常務",
            "dept": "食品本部長"
          },
          {
            "date": "2002-04",
            "role": "常務取締役調味料・食品カンパニープレジデント"
          },
          {
            "date": "2003-06",
            "role": "代表取締役専務執行役員調味料・食品カンパニープレジデント"
          }
        ]
      },
      {
        "company": "カルピス",
        "from": "2005-03",
        "to": null,
        "roles": [
          {
            "date": "2005-03",
            "role": "常任顧問",
            "title": "常任顧問"
          },
          {
            "date": "2005-03",
            "role": "代表取締役取締役社長執行役員社長",
            "board": "代表取締役",
            "officer": "社長執行役員社長",
            "is_ceo_appointed": true
          },
          {
            "date": "2009-06",
            "role": "代表取締役会長執行役員会長",
            "board": "代表取締役",
            "officer": "会長執行役員会長"
          },
          {
            "date": "2009-06",
            "role": "社長退任（次期社長登用による推定）",
            "title": "社長",
            "event": "退任",
            "estimated": true,
            "is_ceo_retired": true,
            "retirement_basis": "next_ceo"
          }
        ]
      }
    ],
    "html_url": "https://the-shashi.com/tse/2591/executives/ceo/ishiwata-souhei/",
    "term_start": "2005-03",
    "term_end": "2009-06",
    "api_url": "https://the-shashi.com/api/2591/ceo/ishiwata-souhei.json",
    "list_api_url": "https://the-shashi.com/api/2591/ceo.json",
    "predecessor": {
      "slug": "muto-takayoshi",
      "name": "武藤高義",
      "api_url": "https://the-shashi.com/api/2591/ceo/muto-takayoshi.json"
    },
    "successor": {
      "slug": "yamada-fujio",
      "name": "山田藤男",
      "api_url": "https://the-shashi.com/api/2591/ceo/yamada-fujio.json"
    }
  }
}