{
  "spec_version": "4",
  "endpoint": "ceo",
  "stock_code": "7240",
  "company_name": "NOK",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/7240/ceo/",
  "api_url": "/api/7240/ceo.json",
  "updated": "2026-09-26",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/7240/ceo/",
  "source": {
    "ceo": {
      "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"
    }
  },
  "count": 3,
  "ceo": [
    {
      "slug": "tsuru-masato",
      "name": "鶴正登",
      "kana": "つる　まさと",
      "hometown": null,
      "education": null,
      "prev_role": null,
      "career": [
        {
          "company": "NOK",
          "from": "1973-03",
          "to": "2023",
          "roles": [
            {
              "date": "1973-03",
              "role": "入社"
            },
            {
              "date": "1978-02",
              "role": "財経本部副本部長兼企画本部副本部長"
            },
            {
              "date": "1979-06",
              "role": "取締役"
            },
            {
              "date": "1981-06",
              "role": "常務取締役"
            },
            {
              "date": "1983-06",
              "role": "専務取締役"
            },
            {
              "date": "1985-06",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            },
            {
              "date": "1989-06",
              "role": "代表取締役会長"
            },
            {
              "date": "1989-06",
              "role": "社長退任（代表取締役会長へ）",
              "is_ceo_retired": true,
              "retirement_basis": "disclosure"
            }
          ]
        },
        {
          "company": "日本メクトロン㈱",
          "from": "1989-06",
          "to": null,
          "roles": [
            {
              "date": "1989-06",
              "role": "代表取締役会長"
            }
          ]
        },
        {
          "company": "ＮＯＫクリューバー㈱",
          "from": "1989-06",
          "to": null,
          "roles": [
            {
              "date": "1989-06",
              "role": "代表取締役会長"
            }
          ]
        },
        {
          "company": "ユニマテック㈱",
          "from": "2002-04",
          "to": null,
          "roles": [
            {
              "date": "2002-04",
              "role": "代表取締役会長"
            }
          ]
        },
        {
          "company": "シンジーテック㈱",
          "from": "2007-04",
          "to": null,
          "roles": [
            {
              "date": "2007-04",
              "role": "代表取締役会長"
            }
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null
      },
      "html_url": "https://the-shashi.com/tse/7240/executives/ceo/tsuru-masato/",
      "term_start": "1985-06",
      "term_end": "2018-04"
    },
    {
      "slug": "doi-kiyoshi",
      "name": "土居清志",
      "kana": "どい　きよし",
      "hometown": null,
      "education": null,
      "prev_role": null,
      "career": [
        {
          "company": "NOK",
          "from": "1977-04",
          "to": "2021",
          "roles": [
            {
              "date": "1977-04",
              "role": "入社"
            },
            {
              "date": "2003-06",
              "role": "取締役"
            }
          ]
        },
        {
          "company": "イーグル工業㈱",
          "from": "2005-06",
          "to": null,
          "roles": [
            {
              "date": "2005-06",
              "role": "常務取締役"
            }
          ]
        },
        {
          "company": "NOK",
          "from": "2007-06",
          "to": "2021",
          "roles": [
            {
              "date": "2007-06",
              "role": "取締役"
            },
            {
              "date": "2007-06",
              "role": "常務取締役"
            },
            {
              "date": "2009-06",
              "role": "専務取締役"
            },
            {
              "date": "2013-06",
              "role": "代表取締役専務"
            },
            {
              "date": "2018-04",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            },
            {
              "date": "2021-04",
              "role": "社長退任（次期社長登用による推定）",
              "is_ceo_retired": true,
              "retirement_basis": "next_ceo"
            }
          ]
        },
        {
          "company": "日本メクトロン㈱",
          "from": "2019-11",
          "to": null,
          "roles": [
            {
              "date": "2019-11",
              "role": "代表取締役社長"
            }
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null
      },
      "html_url": "https://the-shashi.com/tse/7240/executives/ceo/doi-kiyoshi/",
      "term_start": "2018-04",
      "term_end": "2021-04"
    },
    {
      "slug": "tsuru-masao",
      "name": "鶴正雄",
      "kana": "つる　まさお",
      "hometown": null,
      "education": null,
      "prev_role": null,
      "career": [
        {
          "company": "NOK",
          "from": "2005-04",
          "to": null,
          "roles": [
            {
              "date": "2005-04",
              "role": "入社"
            },
            {
              "date": "2017-04",
              "role": "執行役員"
            },
            {
              "date": "2020-04",
              "role": "常務執行役員"
            },
            {
              "date": "2020-04",
              "role": "事業推進本部長"
            },
            {
              "date": "2020-06",
              "role": "取締役"
            },
            {
              "date": "2020-06",
              "role": "専務取締役"
            },
            {
              "date": "2021-04",
              "role": "代表取締役社長",
              "is_ceo_appointed": true
            },
            {
              "date": "2022-06",
              "role": "代表取締役社長執行役員"
            },
            {
              "date": "2023-06",
              "role": "ＣＥＯ"
            },
            {
              "date": "2024-06",
              "role": "グループＣＥＯ"
            }
          ]
        },
        {
          "company": "メクテック㈱",
          "from": "2023-06",
          "to": null,
          "roles": [
            {
              "date": "2023-06",
              "role": "代表取締役会長"
            }
          ]
        },
        {
          "company": "ＮＯＫクリューバー㈱",
          "from": "2023-06",
          "to": null,
          "roles": [
            {
              "date": "2023-06",
              "role": "代表取締役会長"
            }
          ]
        },
        {
          "company": "ユニマテック㈱",
          "from": "2023-06",
          "to": null,
          "roles": [
            {
              "date": "2023-06",
              "role": "代表取締役会長"
            }
          ]
        }
      ],
      "references": [
        {
          "source": "NOK 有価証券報告書【役員の状況】",
          "for": [
            "career"
          ]
        }
      ],
      "sections": {
        "tenure_summary": null,
        "management_policy": null,
        "initiatives": null,
        "tenure_frames": [
          {
            "frame": "origin",
            "text": "2005年4月にNOKへ入社し、2017年4月に執行役員、2020年4月に常務執行役員兼事業推進本部長へ進んだ。2020年6月に取締役、続いて専務取締役に就任し、翌2021年4月に代表取締役社長へ上がった。入社から16年での就任で、全社の事業をまとめる事業推進本部長が直前の職掌だった。"
          },
          {
            "frame": "selection",
            "people": [
              {
                "slug": "doi-kiyoshi"
              }
            ],
            "pages": [
              {
                "page": "shareholders",
                "anchor": "筆頭株主"
              }
            ],
            "text": "2021年4月、土居清志氏の後任として代表取締役社長に就任した。就任前年度の2021年3月期は売上高5964億円・営業利益145億円・当期純損失14億円で、2020年3月期の22億円の損失に続く2期連続の最終赤字だった。専務取締役からの昇格である。筆頭株主は27.01%を持つフロイデンベルグ・エス・エーで、日本マスタートラスト信託銀行8.25%がこれに次ぐ。"
          },
          {
            "frame": "initiatives",
            "text": "就任翌期の2022年3月期に営業利益313億円・当期純利益258億円を計上し、2期続いた最終赤字から抜けた。2025年3月期の売上高は7669億円、営業利益は373億円で、就任前年度の5964億円・145億円を上回った。2023年6月にCEO、2024年6月にグループCEOへ就任し、同じ2023年6月にメクテック・NOKクリューバー・ユニマテックの代表取締役会長を兼ねた。"
          },
          {
            "frame": "results",
            "text": null
          }
        ]
      },
      "html_url": "https://the-shashi.com/tse/7240/executives/ceo/tsuru-masao/",
      "term_start": "2021-04",
      "term_end": null
    }
  ]
}