{ "spec_version": "4", "endpoint": "history", "stock_code": "6995", "company_name": "東海理化電機製作所", "content_lang": "ja", "meta_lang": "en", "canonical_url": "https://the-shashi.com/tse/6995/decisions/", "api_url": "/api/6995/history.json", "updated": "2026-09-26", "license": "© 2026 Yutaka Sugiura. All rights reserved.", "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/6995/decisions/", "source": { "long_term": { "primary": [ "会社年鑑（1976年版）", "会社年鑑（1986年版）", "会社年鑑（1967年版）" ], "extraction": "EDINET の XBRL、kabupro 掲載の旧有価証券報告書、会社年鑑・社史等からの転記", "row_field": "reference", "caveat": "創業期から現在までを 1 本に繋いだ長期系列のため、年代により出所・単位・連結範囲が変わる。行ごとの reference / unit / consolidation を必ず参照すること" } }, "title": "東海理化電機製作所の歴史概略", "eras": [ { "title": "西枇杷島での設立と自動車用スイッチ・キーロック、東証・名証上場", "start_year": 1948, "end_year": 1962 }, { "title": "シートベルトとシフトレバーへの展開、豊田・音羽工場と大口への本社移転", "start_year": 1963, "end_year": 1982 }, { "title": "ステアリングホイール参入とTRWカナダ合弁、台湾・米国・タイへの進出と東海豪雨", "start_year": 1983, "end_year": 2000 }, { "title": "中国・チェコ・インド・メキシコへの展開とデジタルキー、デンソーの株式全売却", "start_year": 2001, "end_year": 2026 } ], "summary": { "description": "東海理化電機製作所の歴史。1948年、加藤由雄氏が愛知県西枇杷島町に設立し自動車用スイッチとキーロックの製造を開始。シートベルトやステアリングへの拡大、デジタルキー事業、デンソーの株式全売却までの沿革と経緯を執筆。" }, "long_term": [ { "year": 1950, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1951, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1952, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1953, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1954, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1955, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1956, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1957, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1958, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1959, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1960, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 11, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": "当期純利益", "net_profit": 0, "net_margin": 0, "employees": null, "reference": "会社年鑑（1967年版）" }, { "year": 1961, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 17, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": "当期純利益", "net_profit": 0, "net_margin": 0, "employees": null, "reference": "会社年鑑（1967年版）" }, { "year": 1962, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 17, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": "当期純利益", "net_profit": 1, "net_margin": 5.882, "employees": null, "reference": "会社年鑑（1967年版）" }, { "year": 1963, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 18, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": "当期純利益", "net_profit": 1, "net_margin": 5.555, "employees": null, "reference": "会社年鑑（1967年版）" }, { "year": 1964, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 24, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": "当期純利益", "net_profit": 1, "net_margin": 4.166, "employees": null, "reference": "会社年鑑（1967年版）" }, { "year": 1965, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 29, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": "当期純利益", "net_profit": 0, "net_margin": 0, "employees": null, "reference": "会社年鑑（1967年版）" }, { "year": 1966, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 31, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 1, "net_profit_jp": "当期純利益", "net_profit": 1, "net_margin": 3.225, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1967, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 41, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 2, "net_profit_jp": "当期純利益", "net_profit": 1, "net_margin": 2.439, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1968, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 51, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 2, "net_profit_jp": "当期純利益", "net_profit": 1, "net_margin": 1.96, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1969, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 71, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 2, "net_profit_jp": "当期純利益", "net_profit": 1, "net_margin": 1.408, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1970, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 101, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 3, "net_profit_jp": "当期純利益", "net_profit": 2, "net_margin": 1.98, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1971, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 123, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 3, "net_profit_jp": "当期純利益", "net_profit": 2, "net_margin": 1.626, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1972, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 144, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 4, "net_profit_jp": "当期純利益", "net_profit": 2, "net_margin": 1.388, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1973, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 168, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 4, "net_profit_jp": "当期純利益", "net_profit": 3, "net_margin": 1.785, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1974, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 220, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 4, "net_profit_jp": "当期純利益", "net_profit": 2, "net_margin": 0.909, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1975, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 255, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 4, "net_profit_jp": "当期純利益", "net_profit": 2, "net_margin": 0.784, "employees": null, "reference": "会社年鑑（1976年版）" }, { "year": 1976, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 306, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 22, "net_profit_jp": "当期純利益", "net_profit": 6, "net_margin": 1.96, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1977, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 355, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 28, "net_profit_jp": "当期純利益", "net_profit": 12, "net_margin": 3.38, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1978, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 413, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 32, "net_profit_jp": "当期純利益", "net_profit": 14, "net_margin": 3.389, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1979, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 456, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 30, "net_profit_jp": "当期純利益", "net_profit": 14, "net_margin": 3.07, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1980, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 536, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 32, "net_profit_jp": "当期純利益", "net_profit": 16, "net_margin": 2.985, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1981, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 632, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 29, "net_profit_jp": "当期純利益", "net_profit": 13, "net_margin": 2.056, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1982, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 694, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 33, "net_profit_jp": "当期純利益", "net_profit": 15, "net_margin": 2.161, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1983, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 724, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 34, "net_profit_jp": "当期純利益", "net_profit": 16, "net_margin": 2.209, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1984, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 823, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 41, "net_profit_jp": "当期純利益", "net_profit": 19, "net_margin": 2.308, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1985, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 920, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 44, "net_profit_jp": "当期純利益", "net_profit": 20, "net_margin": 2.173, "employees": null, "reference": "会社年鑑（1986年版）" }, { "year": 1986, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1987, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1988, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1989, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1990, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1991, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1992, "month": 3, "company_name": "東海理化電機製作所", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, 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