{ "spec_version": "5", "endpoint": "history", "stock_code": "kawamoto", "company_name": "川本製作所", "content_lang": "ja", "meta_lang": "en", "canonical_url": "https://the-shashi.com/tse/kawamoto/decisions/", "api_url": "/api/kawamoto/history.json", "updated": "2026-10-13", "license": "© 2026 Yutaka Sugiura. All rights reserved.", "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/kawamoto/decisions/", "source": { "chapters": { "html_url": "https://the-shashi.com/tse/kawamoto/", "primary": [ "社史", "有価証券報告書", "新聞・雑誌記事" ], "extraction": "一次資料を読み合わせて執筆" }, "long_term": { "primary": [ "有価証券報告書" ], "extraction": "EDINET の XBRL、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": "川本製作所の歴史概略", "eras": [ { "title": "川本𨨞三の川本製作所創業と全国販売網の構築", "start_year": 1919, "end_year": 1948, "phase": "founding" }, { "title": "株式会社への改組と「ベビースイート」の発売", "start_year": 1949, "end_year": 1965, "phase": "growth" }, { "title": "岡崎工場の完成と消火・給水ポンプへの品目拡大", "start_year": 1966, "end_year": 1998, "phase": "growth" }, { "title": "髙津悟の社長就任と省エネポンプの投入", "start_year": 1999, "end_year": 2026, "phase": "maturity" } ], "lineage": { "path": "kawamoto-lineage-top.v3.json" }, "timelineLead": "1919年に川本𨨞三氏が個人経営で始めた事業が起源。\n1955年発売の全自動自吸式ポンプ「ワールドスイート」で家庭用ポンプの販路を拡大し、ドラゴンポンプは1964年にユニセフの指定商品に採用された。家庭用給水ポンプ「カワエース」を主力とするポンプメーカーである。", "lineageLead": "川本𨨞三氏が1919年に創業したポンプメーカーである。\n1946年に家庭用ポンプの製造を始め、1949年に個人経営から株式会社へ改組した。1954年に家庭用電気ポンプ「ベビースイート」を発売し、1966年に岡崎工場を完成させた。個人経営から出発し、家庭用ポンプを柱に量産体制を固めた。", "foundingStory": true, "chapters": [ { "start_year": 1919, "end_year": 1948, "main_title": "川本𨨞三の川本製作所創業と全国販売網の構築", "subsections": [ { "title": "鋳鉄製手押しポンプの量産と2,000店の販売網", "text": "川本𨨞三氏は1919年（大正8年）、名古屋市中区大池町で手押しポンプの製造と販売を個人経営で始めた。当時の手押しポンプは陶製や木製が主流で、数をそろえて作れず、遠方への運搬にも向かなかった。鋳鉄製は高価で、川本𨨞三氏はその構造を設計し直し、量産で単価を下げた鋳鉄製の手押しポンプを世に出した。売り出した製品の名は「共柄ポンプ」で、関連の特許取得も重ねた。2代目社長の川本修三氏は1976年の取材で『昔の手押し式ポンプは当社が草わけ』と振り返った。陶製・木製の量産の難しさと鋳鉄製の高値の間を、量産による値下げで埋める参入だったとみられる。\n\n創業から3年後の1922年、川本𨨞三氏は国内の販売を固めるため、全国に2,000の販売店を網羅した。宣伝活動と通信販売にも力を割き、大正末には手押しポンプといえば川本ポンプと言われたという。「川本ポンプ」の名は創業以来の通り名として、1960年代まで続いた。1927年（昭和2年）には中国・朝鮮半島・台湾など東南アジア方面への輸出を始め、1932年には全国発明博覧会で賞を受けた。量産で下げた単価を、直営の店ではなく各地の既存の販売店に乗せて全国へ届ける仕組みだったとみられる。\n\n川本𨨞三氏の手動ポンプは、戦時中から戦後にかけても使われ続けた。1946年（昭和21年）には大池町に工場を新設し、中川区運河通りに設けた六反工場で家庭用ポンプの製造を始めた。家庭用ポンプは、先代の川本𨨞三氏が個人営業のうちに手がけ始めた事業にあたる。1948年には中区川端町に西川端工場を加え、翌1949年に個人経営から株式会社へ改組した。家庭用への着手が、1954年の家庭用電気ポンプにつながる製品の土台になったとみられる。", "references": [ { "title": "川本製作所公式サイト「沿革（創業100周年）」（2026年10月時点）", "year": null, "month": null, "date": null, "url": null, "quotes": [] }, { "title": "新日本経済 30(6) 1966年", "year": null, "month": null, "date": null, "url": null, "quotes": [] }, { "title": "中部財界 16(20) 1973年「白亜の殿堂｢川本製作所ビル｣完成」", "year": null, "month": null, "date": null, "url": null, "quotes": [] }, { "title": "中部財界 19(14) 1976年8月「大正会人と事業――川本修三氏(株)川本製作所社長」", "year": null, "month": null, "date": null, "url": null, "quotes": [] } ], "start_year": 1919, "opinionPos": [ [ 270 ], [ 239 ], [ 214 ] ] } ] } ], "long_term": [ { "year": 1950, "month": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", "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": 1961, "month": 8, "company_name": "川本製作所", "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": 1962, "month": 8, "company_name": "川本製作所", "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": 1963, "month": 8, "company_name": "川本製作所", "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": 1964, "month": 8, "company_name": "川本製作所", "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": 1965, "month": 8, "company_name": "川本製作所", "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": 1966, "month": 8, "company_name": "川本製作所", "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": 1967, "month": 8, "company_name": "川本製作所", "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": 1968, "month": 8, "company_name": "川本製作所", "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": 1969, "month": 8, "company_name": "川本製作所", "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": 1970, "month": 8, "company_name": "川本製作所", "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": 1971, "month": 8, "company_name": "川本製作所", "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": 1972, "month": 8, "company_name": "川本製作所", "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": 1973, "month": 8, "company_name": "川本製作所", "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": 1974, "month": 8, "company_name": "川本製作所", "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": 1975, "month": 8, "company_name": "川本製作所", "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": 1976, "month": 8, "company_name": "川本製作所", "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": 1977, "month": 8, "company_name": "川本製作所", "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": 1978, "month": 8, "company_name": "川本製作所", "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": 1979, "month": 8, "company_name": "川本製作所", "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": 1980, "month": 8, "company_name": "川本製作所", "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": 1981, "month": 8, "company_name": "川本製作所", "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": 1982, "month": 8, "company_name": "川本製作所", "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": 1983, "month": 8, "company_name": "川本製作所", "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": 1984, "month": 8, "company_name": "川本製作所", "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": 1985, "month": 8, "company_name": "川本製作所", "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": 1986, "month": 8, "company_name": "川本製作所", "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": 8, "company_name": "川本製作所", 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