【表紙】

 

【提出書類】

有価証券報告書

【根拠条文】

金融商品取引法第24条第1項

【提出先】

関東財務局長

【提出日】

2026年6月22日

【事業年度】

第112期(自  2025年4月1日  至  2026年3月31日)

【会社名】

株式会社関電工

【英訳名】

KANDENKO  CO.,LTD.

【代表者の役職氏名】

代表取締役社長  社長執行役員    田母神  博文

【本店の所在の場所】

東京都港区芝浦4丁目8番33号

【電話番号】

03-5476-2111(代表)

【事務連絡者氏名】

経理部長    清野  慈文

【最寄りの連絡場所】

東京都港区芝浦4丁目8番33号

【電話番号】

03-5476-2111(代表)

【事務連絡者氏名】

経理部長    清野  慈文

【縦覧に供する場所】

株式会社関電工  東京営業本部  千葉支店

(千葉県千葉市中央区新宿2丁目1番24号)

 

株式会社関電工  北関東営業本部  埼玉支店

(埼玉県さいたま市大宮区桜木町1丁目195番地1)

 

株式会社関電工  南関東営業本部  神奈川支店

(神奈川県横浜市西区平沼1丁目1番8号)

 

株式会社関電工  西日本営業本部  関西支店

(大阪府大阪市北区中之島2丁目3番18号)

 

株式会社東京証券取引所

(東京都中央区日本橋兜町2番1号)

 

E00074 19420 株式会社関電工 KANDENKO CO.,LTD. 企業内容等の開示に関する内閣府令 第三号様式 Japan GAAP true CNS CNS 2025-04-01 2026-03-31 FY 2026-03-31 2024-04-01 2025-03-31 2025-03-31 1 false false false E00074-000 2026-03-31 jpcrp_cor:Row6Member E00074-000 2026-03-31 jpcrp_cor:Row7Member E00074-000 2026-03-31 jpcrp_cor:Row8Member E00074-000 2026-03-31 jpcrp_cor:Row9Member E00074-000 2026-03-31 jpcrp_cor:Row10Member E00074-000 2026-03-31 jpcrp_cor:Row11Member E00074-000 2026-03-31 jpcrp_cor:Row12Member E00074-000 2026-03-31 jpcrp_cor:Row13Member E00074-000 2026-03-31 jpcrp_cor:Row14Member E00074-000 2026-03-31 jpcrp_cor:Row15Member E00074-000 2026-03-31 jpcrp_cor:Row16Member E00074-000 2026-03-31 jpcrp_cor:Row17Member E00074-000 2026-03-31 jpcrp_cor:Row18Member E00074-000 2026-03-31 jpcrp_cor:Row19Member E00074-000 2026-03-31 jpcrp_cor:Row20Member E00074-000 2025-04-01 2026-03-31 jppfs_cor:GeneralReserveMember jppfs_cor:NonConsolidatedMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:NakahitoKoichiMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:NonControllingInterestsMember E00074-000 2026-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E00074-000 2026-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:RetainedEarningsMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:TreasuryStockMember E00074-000 2024-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalCapitalSurplusMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E00074-000 2025-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jppfs_cor:GeneralReserveMember jppfs_cor:NonConsolidatedMember E00074-000 2025-03-31 jpcrp_cor:Row17Member E00074-000 2025-03-31 jpcrp_cor:Row18Member E00074-000 2025-03-31 jpcrp_cor:Row19Member E00074-000 2025-03-31 jpcrp_cor:Row20Member E00074-000 2025-03-31 jpcrp_cor:Row21Member E00074-000 2025-03-31 jpcrp_cor:Row22Member E00074-000 2025-03-31 jpcrp_cor:Row23Member E00074-000 2025-03-31 jpcrp_cor:Row24Member E00074-000 2025-03-31 jpcrp_cor:Row25Member E00074-000 2025-03-31 jpcrp_cor:Row26Member E00074-000 2025-03-31 jpcrp_cor:Row27Member E00074-000 2025-03-31 jpcrp_cor:Row28Member E00074-000 2025-03-31 jpcrp_cor:Row29Member E00074-000 2025-03-31 jpcrp_cor:Row30Member E00074-000 2025-03-31 jpcrp_cor:Row31Member E00074-000 2025-03-31 jpcrp_cor:Row32Member E00074-000 2025-03-31 jpcrp_cor:Row33Member E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:KatoTakaakiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:ObaEiichiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:KanoNozomuMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:TakeuchiSatoshiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:NarahashiMikaMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:ShiokawaKazuyukiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:IidaNobuhiroMember E00074-000 2025-03-31 jpcrp_cor:Row34Member E00074-000 2025-03-31 jpcrp_cor:Row35Member E00074-000 2026-03-31 jpcrp_cor:Row39Member E00074-000 2025-03-31 jpcrp_cor:Row37Member E00074-000 2025-03-31 jpcrp_cor:Row38Member E00074-000 2025-03-31 jpcrp_cor:Row39Member E00074-000 2025-03-31 jpcrp_cor:Row40Member E00074-000 2025-03-31 jpcrp_cor:Row41Member E00074-000 2025-03-31 jpcrp_cor:Row42Member E00074-000 2025-03-31 jpcrp_cor:Row43Member E00074-000 2025-03-31 jpcrp_cor:Row44Member E00074-000 2025-03-31 jpcrp_cor:Row45Member E00074-000 2025-03-31 jpcrp_cor:Row46Member E00074-000 2025-03-31 jpcrp_cor:Row47Member E00074-000 2025-03-31 jpcrp_cor:Row48Member E00074-000 2026-03-31 jpcrp_cor:Row3Member E00074-000 2026-03-31 jpcrp_cor:Row4Member E00074-000 2025-03-31 jpcrp_cor:Row1Member E00074-000 2025-03-31 jpcrp_cor:Row2Member E00074-000 2025-03-31 jpcrp_cor:Row3Member E00074-000 2025-03-31 jpcrp_cor:Row4Member E00074-000 2026-06-22 jpcrp_cor:Row1Member E00074-000 2026-06-22 jpcrp_cor:Row2Member E00074-000 2026-06-22 jpcrp_cor:Row3Member E00074-000 2026-06-22 jpcrp_cor:Row4Member E00074-000 2026-06-22 jpcrp_cor:OrdinaryShareMember E00074-000 2026-03-31 jppfs_cor:NonConsolidatedMember jpcrp_cor:OtherOperatingSegmentsAxisMember E00074-000 2026-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E00074-000 2026-03-31 jpcrp030000-asr_E00074-000:ENGINEERINGReportableSegmentsMember E00074-000 2025-04-01 2026-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E00074-000 2025-04-01 2026-03-31 jpcrp030000-asr_E00074-000:ENGINEERINGReportableSegmentsMember E00074-000 2024-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E00074-000 2026-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E00074-000 2025-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E00074-000 2024-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E00074-000 2026-03-31 jpcrp_cor:SharesWithNoVotingRightsMember E00074-000 2026-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsTreasurySharesEtcMember E00074-000 2026-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsOtherMember E00074-000 2026-03-31 jpcrp_cor:SharesWithFullVotingRightsTreasurySharesEtcMember E00074-000 2026-03-31 jpcrp_cor:OrdinarySharesTreasurySharesSharesWithFullVotingRightsTreasurySharesEtcMember E00074-000 2026-03-31 jpcrp_cor:SharesWithFullVotingRightsOtherMember E00074-000 2026-03-31 jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsOtherMember E00074-000 2026-03-31 jpcrp_cor:SharesLessThanOneUnitMember E00074-000 2026-03-31 jpcrp_cor:OrdinarySharesSharesLessThanOneUnitMember E00074-000 2026-03-31 jpcrp_cor:No1MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No2MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No3MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No4MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No5MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No6MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No7MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No8MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No9MajorShareholdersMember E00074-000 2026-03-31 jpcrp_cor:No10MajorShareholdersMember E00074-000 2024-04-01 2025-03-31 jpcrp_cor:ReconcilingItemsMember E00074-000 2024-04-01 2025-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E00074-000 2024-04-01 2025-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:FujiiMitsuruMember E00074-000 2026-03-31 jpcrp_cor:OtherOperatingSegmentsAxisMember E00074-000 2026-03-31 jpcrp030000-asr_E00074-000:ENGINEERINGReportableSegmentsMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jpcrp_cor:Row1Member E00074-000 2026-03-31 jpcrp_cor:Row2Member E00074-000 2024-04-01 2025-03-31 jppfs_cor:RevaluationReserveForLandMember jppfs_cor:NonConsolidatedMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2025-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E00074-000 2025-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2025-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:RevaluationReserveForLandMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:KashiwabaraShoichiroMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:UedaYujiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:SuetsunaTakashiMember E00074-000 2025-04-01 2026-03-31 jpcrp_cor:DirectorsExcludingOutsideDirectorsMember E00074-000 2025-04-01 2026-03-31 jpcrp_cor:CorporateAuditorsExcludingOutsideCorporateAuditorsMember E00074-000 2025-04-01 2026-03-31 jpcrp_cor:OutsideDirectorsAndOtherOfficersMember E00074-000 2026-03-31 jpcrp_cor:Row30Member E00074-000 2025-03-31 jpcrp_cor:Row15Member E00074-000 2025-03-31 jpcrp_cor:Row16Member E00074-000 2026-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2026-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2026-03-31 jppfs_cor:RevaluationReserveForLandMember E00074-000 2026-03-31 jppfs_cor:NonControllingInterestsMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:CapitalStockMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:CapitalSurplusMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:GeneralReserveMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2024-04-01 2025-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E00074-000 2026-03-31 jpcrp_cor:Row29Member E00074-000 2025-04-01 2026-03-31 E00074-000 2026-06-22 E00074-000 2026-03-31 E00074-000 2025-03-31 E00074-000 2024-04-01 2025-03-31 E00074-000 2024-03-31 E00074-000 2023-04-01 2024-03-31 E00074-000 2023-03-31 E00074-000 2025-04-01 2026-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:RevaluationReserveForLandMember jppfs_cor:NonConsolidatedMember E00074-000 2025-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2025-03-31 jppfs_cor:NonControllingInterestsMember E00074-000 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E00074-000 2024-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2024-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2024-03-31 jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember jppfs_cor:NonConsolidatedMember E00074-000 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:GeneralReserveMember E00074-000 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E00074-000 2024-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E00074-000 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E00074-000 2024-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E00074-000 2024-03-31 jppfs_cor:RevaluationReserveForLandMember jppfs_cor:NonConsolidatedMember E00074-000 2022-04-01 2023-03-31 E00074-000 2022-03-31 E00074-000 2021-04-01 2022-03-31 E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:TanakaKojiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:EnokiHiroyukiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:FubasamiSeiichiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:TamogamiHirofumiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:SutoMiwaMember E00074-000 2025-03-31 jpcrp_cor:Row5Member E00074-000 2025-03-31 jpcrp_cor:Row6Member E00074-000 2025-03-31 jpcrp_cor:Row7Member E00074-000 2025-03-31 jpcrp_cor:Row8Member E00074-000 2025-03-31 jpcrp_cor:Row9Member E00074-000 2025-03-31 jpcrp_cor:Row10Member E00074-000 2025-03-31 jpcrp_cor:Row11Member E00074-000 2025-03-31 jpcrp_cor:Row12Member E00074-000 2025-03-31 jpcrp_cor:Row13Member E00074-000 2025-03-31 jpcrp_cor:Row14Member E00074-000 2024-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2024-03-31 jppfs_cor:NonControllingInterestsMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:CapitalStockMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:CapitalSurplusMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:TreasuryStockMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:ShareholdersEquityMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:RevaluationReserveForLandMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonControllingInterestsMember E00074-000 2025-03-31 jppfs_cor:CapitalStockMember E00074-000 2025-03-31 jppfs_cor:CapitalSurplusMember E00074-000 2025-03-31 jppfs_cor:RetainedEarningsMember E00074-000 2025-03-31 jppfs_cor:TreasuryStockMember E00074-000 2025-03-31 jppfs_cor:ShareholdersEquityMember E00074-000 2026-03-31 jpcrp_cor:OrdinaryShareMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:GeneralReserveMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E00074-000 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RevaluationReserveForLandMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:OtherCapitalSurplusMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E00074-000 2026-03-31 jpcrp_cor:Row5Member E00074-000 2025-03-31 jpcrp_cor:Row49Member E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RevaluationReserveForLandMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E00074-000 2026-03-31 jppfs_cor:ShareholdersEquityMember E00074-000 2026-03-31 jppfs_cor:CapitalStockMember E00074-000 2026-03-31 jppfs_cor:CapitalSurplusMember E00074-000 2026-03-31 jppfs_cor:RetainedEarningsMember E00074-000 2026-03-31 jppfs_cor:TreasuryStockMember E00074-000 2025-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E00074-000 2025-03-31 jpcrp030000-asr_E00074-000:ENGINEERINGReportableSegmentsMember E00074-000 2026-03-31 jpcrp_cor:ReconcilingItemsMember E00074-000 2026-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E00074-000 2025-04-01 2026-03-31 jpcrp_cor:ReconcilingItemsMember E00074-000 2024-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2026-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E00074-000 2026-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2025-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2024-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2023-04-01 2024-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2023-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2022-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2021-04-01 2022-03-31 jppfs_cor:NonConsolidatedMember E00074-000 2024-03-31 jppfs_cor:CapitalStockMember E00074-000 2024-03-31 jppfs_cor:CapitalSurplusMember E00074-000 2024-03-31 jppfs_cor:RetainedEarningsMember E00074-000 2024-03-31 jppfs_cor:TreasuryStockMember E00074-000 2024-03-31 jppfs_cor:ShareholdersEquityMember E00074-000 2024-04-01 2025-03-31 jppfs_cor:RetainedEarningsMember E00074-000 2026-03-31 jpcrp_cor:Row32Member E00074-000 2026-03-31 jpcrp_cor:Row33Member E00074-000 2026-03-31 jpcrp_cor:Row34Member E00074-000 2026-03-31 jpcrp_cor:Row35Member E00074-000 2026-03-31 jpcrp_cor:Row36Member E00074-000 2026-03-31 jpcrp_cor:Row37Member E00074-000 2026-03-31 jpcrp_cor:Row38Member E00074-000 2026-03-31 jpcrp_cor:Row31Member E00074-000 2024-04-01 2025-03-31 jpcrp030000-asr_E00074-000:ENGINEERINGReportableSegmentsMember E00074-000 2025-03-31 jpcrp_cor:ReconcilingItemsMember E00074-000 2025-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E00074-000 2025-04-01 2026-03-31 jppfs_cor:ShareholdersEquityMember E00074-000 2026-03-31 jpcrp_cor:Row21Member E00074-000 2026-03-31 jpcrp_cor:Row22Member E00074-000 2026-03-31 jpcrp_cor:Row23Member E00074-000 2026-03-31 jpcrp_cor:Row24Member E00074-000 2026-03-31 jpcrp_cor:Row25Member E00074-000 2026-03-31 jpcrp_cor:Row26Member E00074-000 2026-03-31 jpcrp_cor:Row27Member E00074-000 2026-03-31 jpcrp_cor:Row28Member E00074-000 2024-04-01 2025-03-31 jpcrp_cor:ConsolidatedAccountingGroupMember E00074-000 2025-04-01 2026-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E00074-000 2025-03-31 jpcrp_cor:Row36Member E00074-000 2024-03-31 jppfs_cor:RevaluationReserveForLandMember E00074-000 2026-03-31 jpcrp_cor:Row40Member E00074-000 2026-03-31 jpcrp_cor:Row41Member E00074-000 2026-03-31 jpcrp_cor:Row42Member E00074-000 2026-03-31 jpcrp_cor:Row43Member E00074-000 2026-03-31 jpcrp_cor:Row44Member E00074-000 2026-03-31 jpcrp_cor:Row45Member E00074-000 2026-03-31 jpcrp_cor:Row46Member E00074-000 2026-03-31 jpcrp_cor:Row47Member E00074-000 2026-03-31 jpcrp_cor:Row48Member E00074-000 2026-03-31 jpcrp_cor:Row49Member E00074-000 2025-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E00074-000 2025-03-31 jppfs_cor:RevaluationReserveForLandMember E00074-000 2020-04-01 2021-03-31 jpcrp_cor:ConsolidatedAccountingGroupMember E00074-000 2020-04-01 2021-03-31 E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:KonnoTakayukiMember E00074-000 2026-06-22 jpcrp030000-asr_E00074-000:NakamuraNaokiMember iso4217:JPY xbrli:shares iso4217:JPY xbrli:shares xbrli:pure utr:tCO2e