# 【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】 | 2023年６月21日
【事業年度】 | 第170期（自　2022年４月１日　至　2023年３月31日）
【会社名】 | 株式会社　神戸製鋼所
【英訳名】 | Kobe Steel, Ltd.
【代表者の役職氏名】 | 代表取締役社長　　山口　貢
【本店の所在の場所】 | 神戸市中央区脇浜海岸通２丁目２番４号
【電話番号】 | 078（261）5194
【事務連絡者氏名】 | 財務経理部決算グループ長　　古川　禎久
【最寄りの連絡場所】 | 神戸市中央区脇浜海岸通２丁目２番４号
【電話番号】 | 078（261）5194
【事務連絡者氏名】 | 財務経理部決算グループ長　　古川　禎久
【縦覧に供する場所】 | 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） 株式会社名古屋証券取引所 （名古屋市中区栄３丁目８番20号）

E01231 54060 株式会社　神戸製鋼所 Kobe Steel, 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 CTE CTE 2022-04-01 2023-03-31 FY 2023-03-31 2021-04-01 2022-03-31 2022-03-31 1 false false false E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:WeldingReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp_cor:ReportableSegmentsMember E01231-000 2022-03-31 jpcrp_cor:ReconcilingItemsMember E01231-000 2022-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01231-000 2022-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E01231-000 2022-03-31 jpcrp_cor:ReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01231-000 2021-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01231-000 2023-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01231-000 2022-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:DirectorsExcludingAuditAndSupervisoryCommitteeMembersAndOutsideDirectorsMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:ItoYumikoMember E01231-000 2023-03-31 jpcrp_cor:Row1Member E01231-000 2018-04-01 2019-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2021-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01231-000 2021-03-31 jppfs_cor:RetainedEarningsMember E01231-000 2021-03-31 jppfs_cor:TreasuryStockMember E01231-000 2021-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01231-000 2021-04-01 2022-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01231-000 2023-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01231-000 2022-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01231-000 2023-03-31 jpcrp_cor:ReconcilingItemsMember E01231-000 2023-03-31 jpcrp_cor:Row7Member E01231-000 2023-03-31 jpcrp_cor:Row8Member E01231-000 2023-03-31 jpcrp_cor:Row9Member E01231-000 2023-03-31 jpcrp_cor:Row10Member E01231-000 2023-03-31 jpcrp_cor:Row11Member E01231-000 2021-03-31 jppfs_cor:CapitalStockMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:RevaluationReserveForLandMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonControllingInterestsMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalSurplusMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalCapitalSurplusMember E01231-000 2020-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsTreasurySharesEtcMember E01231-000 2023-03-31 jpcrp_cor:Row14Member E01231-000 2023-03-31 jpcrp_cor:Row15Member E01231-000 2023-03-31 jpcrp_cor:Row16Member E01231-000 2023-03-31 jpcrp_cor:Row17Member E01231-000 2023-03-31 jpcrp_cor:Row18Member E01231-000 2023-03-31 jpcrp_cor:Row19Member E01231-000 2023-03-31 jpcrp_cor:Row20Member E01231-000 2023-03-31 jpcrp_cor:Row21Member E01231-000 2023-03-31 jpcrp_cor:Row22Member E01231-000 2023-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01231-000 2023-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2023-03-31 jppfs_cor:RevaluationReserveForLandMember E01231-000 2023-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01231-000 2023-03-31 jppfs_cor:NonControllingInterestsMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:CapitalStockMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:CapitalSurplusMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:RetainedEarningsMember E01231-000 2023-03-31 jpcrp_cor:No7MajorShareholdersMember E01231-000 2023-03-31 jpcrp_cor:No8MajorShareholdersMember E01231-000 2023-03-31 jpcrp_cor:No9MajorShareholdersMember E01231-000 2023-03-31 jpcrp_cor:No10MajorShareholdersMember E01231-000 2021-04-01 2022-03-31 jpcrp_cor:ReconcilingItemsMember E01231-000 2021-04-01 2022-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01231-000 2022-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:OutsideDirectorsAndOtherOfficersMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:DirectorsAppointedAsAuditAndSupervisoryCommitteeMembersExcludingOutsideDirectorsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:AdvancedMaterialsReportableSegmentsMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:AdvancedMaterialsReportableSegmentsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:SteelAndAluminumReportableSegmentsMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:SteelAndAluminumReportableSegmentsMember E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:AdvancedMaterialsReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:AdvancedMaterialsReportableSegmentsMember E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:SteelAndAluminumReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:SteelAndAluminumReportableSegmentsMember E01231-000 2023-03-31 jpcrp_cor:Row30Member E01231-000 2021-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2021-03-31 jppfs_cor:RevaluationReserveForLandMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:RetainedEarningsMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:NonControllingInterestsMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:MachineryReportableSegmentsMember E01231-000 2023-06-21 jpcrp_cor:Row6Member E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:MachineryReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:MachineryReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:EngineeringReportableSegmentsMember E01231-000 2023-03-31 jpcrp_cor:Row12Member E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:TreasuryStockMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForSpecialDepreciationMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:ReconcilingItemsMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E01231-000 2022-04-01 2023-03-31 jpcrp_cor:ReportableSegmentsMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:WeldingReportableSegmentsMember E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:WeldingReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:WeldingReportableSegmentsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:IronAndSteelReportableSegmentsMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:IronAndSteelReportableSegmentsMember E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:IronAndSteelReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:IronAndSteelReportableSegmentsMember E01231-000 2022-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2023-03-31 jppfs_cor:ShareholdersEquityMember E01231-000 2023-03-31 jppfs_cor:CapitalStockMember E01231-000 2023-03-31 jppfs_cor:CapitalSurplusMember E01231-000 2023-03-31 jppfs_cor:RetainedEarningsMember E01231-000 2023-03-31 jppfs_cor:TreasuryStockMember E01231-000 2023-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:ShareholdersEquityMember E01231-000 2022-03-31 jppfs_cor:CapitalStockMember E01231-000 2022-03-31 jppfs_cor:CapitalSurplusMember E01231-000 2022-03-31 jppfs_cor:RetainedEarningsMember E01231-000 2022-03-31 jppfs_cor:TreasuryStockMember E01231-000 2022-03-31 jppfs_cor:ShareholdersEquityMember E01231-000 2022-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01231-000 2022-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2022-03-31 jppfs_cor:RevaluationReserveForLandMember E01231-000 2022-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01231-000 2022-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2022-03-31 jppfs_cor:NonControllingInterestsMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsMember E01231-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2019-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp_cor:No3MajorShareholdersMember E01231-000 2023-03-31 jpcrp_cor:No4MajorShareholdersMember E01231-000 2023-03-31 jpcrp_cor:No5MajorShareholdersMember E01231-000 2023-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsOtherMember E01231-000 2023-03-31 jpcrp_cor:SharesWithFullVotingRightsTreasurySharesEtcMember E01231-000 2023-03-31 jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsTreasurySharesEtcMember E01231-000 2023-03-31 jpcrp_cor:SharesWithFullVotingRightsOtherMember E01231-000 2023-03-31 jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsOtherMember E01231-000 2023-03-31 jpcrp_cor:SharesLessThanOneUnitMember E01231-000 2023-03-31 jpcrp_cor:OrdinarySharesSharesLessThanOneUnitMember E01231-000 2023-03-31 jpcrp_cor:Row2Member E01231-000 2023-03-31 jpcrp_cor:Row3Member E01231-000 2023-03-31 jpcrp_cor:Row4Member E01231-000 2023-03-31 jpcrp_cor:Row5Member E01231-000 2023-03-31 jpcrp_cor:Row6Member E01231-000 2021-03-31 jppfs_cor:CapitalSurplusMember E01231-000 2021-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2021-03-31 jppfs_cor:NonControllingInterestsMember E01231-000 2021-03-31 jppfs_cor:ShareholdersEquityMember E01231-000 2023-03-31 E01231-000 2022-03-31 E01231-000 2021-04-01 2022-03-31 E01231-000 2021-03-31 E01231-000 2020-04-01 2021-03-31 E01231-000 2020-03-31 E01231-000 2019-04-01 2020-03-31 E01231-000 2019-03-31 E01231-000 2018-04-01 2019-03-31 E01231-000 2023-06-21 E01231-000 2022-04-01 2023-03-31 E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:KitagawaShinsukeMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:SekiguchiNobukoMember E01231-000 2023-06-21 jpcrp_cor:OrdinaryShareMember E01231-000 2023-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01231-000 2021-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2021-03-31 jppfs_cor:ReserveForSpecialDepreciationMember jppfs_cor:NonConsolidatedMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForSpecialDepreciationMember E01231-000 2020-04-01 2021-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2021-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp_cor:OrdinaryShareMember E01231-000 2023-03-31 jpcrp_cor:SharesWithNoVotingRightsMember E01231-000 2023-03-31 jpcrp_cor:CorporateSharedMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jpcrp_cor:ReportableSegmentsMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jpcrp030000-asr_E01231-000:IronAndSteelReportableSegmentsMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jpcrp030000-asr_E01231-000:WeldingReportableSegmentsMember E01231-000 2023-03-31 jppfs_cor:NonConsolidatedMember jpcrp030000-asr_E01231-000:MachineryReportableSegmentsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:EngineeringReportableSegmentsMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:ElectricPowerReportableSegmentsMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp_cor:CorporateSharedMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:AdvancedMaterialsReportableSegmentsMember jppfs_cor:NonConsolidatedMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:MiuraKunioMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:KonoMasaakiMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:YamaguchiMitsuguMember E01231-000 2023-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember jppfs_cor:NonConsolidatedMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01231-000 2023-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E01231-000 2023-03-31 jpcrp_cor:ReportableSegmentsMember E01231-000 2023-03-31 jpcrp_cor:Row23Member E01231-000 2023-03-31 jpcrp_cor:Row24Member E01231-000 2023-03-31 jpcrp_cor:Row13Member E01231-000 2023-03-31 jpcrp_cor:Row25Member E01231-000 2022-04-01 2023-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01231-000 2022-04-01 2023-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01231-000 2023-03-31 jpcrp_cor:No1MajorShareholdersMember E01231-000 2023-03-31 jpcrp_cor:No2MajorShareholdersMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:TreasuryStockMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ShareholdersEquityMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:RevaluationReserveForLandMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:CapitalStockMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:CapitalSurplusMember E01231-000 2023-03-31 jpcrp_cor:No6MajorShareholdersMember E01231-000 2021-03-31 jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ReserveForSpecialDepreciationMember jppfs_cor:NonConsolidatedMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:ElectricPowerReportableSegmentsMember E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:ElectricPowerReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:ElectricPowerReportableSegmentsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:ConstructionMachineryReportableSegmentsMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:ConstructionMachineryReportableSegmentsMember E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:ConstructionMachineryReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jpcrp030000-asr_E01231-000:ConstructionMachineryReportableSegmentsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:EngineeringReportableSegmentsMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:EngineeringReportableSegmentsMember E01231-000 2022-03-31 jpcrp030000-asr_E01231-000:EngineeringReportableSegmentsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:MachineryReportableSegmentsMember E01231-000 2023-03-31 jpcrp030000-asr_E01231-000:ElectricPowerReportableSegmentsMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:DeferredGainsOrLossesOnHedgesMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E01231-000 2021-04-01 2022-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:ReserveForSpecialDepreciationMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember jppfs_cor:NonConsolidatedMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:NagaraHajimeMember E01231-000 2023-03-31 jpcrp_cor:Row27Member E01231-000 2023-03-31 jpcrp_cor:Row28Member E01231-000 2023-03-31 jpcrp_cor:Row29Member E01231-000 2022-03-31 jpcrp_cor:Row1Member E01231-000 2022-03-31 jpcrp_cor:Row2Member E01231-000 2022-03-31 jpcrp_cor:Row3Member E01231-000 2022-03-31 jpcrp_cor:Row4Member E01231-000 2022-03-31 jpcrp_cor:Row5Member E01231-000 2022-03-31 jpcrp_cor:Row6Member E01231-000 2023-06-21 jpcrp_cor:Row1Member E01231-000 2023-06-21 jpcrp_cor:Row2Member E01231-000 2023-06-21 jpcrp_cor:Row3Member E01231-000 2023-06-21 jpcrp_cor:Row4Member E01231-000 2023-06-21 jpcrp_cor:Row5Member E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:IshikawaHiroshiMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:BambaHiroyukiMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:KatsukawaYoshihikoMember E01231-000 2023-03-31 jpcrp_cor:Row26Member E01231-000 2022-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01231-000 2022-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01231-000 2021-04-01 2022-03-31 jpcrp_cor:OperatingSegmentsNotIncludedInReportableSegmentsAndOtherRevenueGeneratingBusinessActivitiesMember E01231-000 2022-03-31 jpcrp_cor:Row7Member E01231-000 2022-03-31 jpcrp_cor:Row8Member E01231-000 2022-03-31 jpcrp_cor:Row9Member E01231-000 2022-03-31 jpcrp_cor:Row10Member E01231-000 2022-03-31 jpcrp_cor:Row11Member E01231-000 2022-03-31 jpcrp_cor:Row12Member E01231-000 2022-03-31 jpcrp_cor:Row13Member E01231-000 2022-03-31 jpcrp_cor:Row14Member E01231-000 2022-03-31 jpcrp_cor:Row15Member E01231-000 2022-03-31 jpcrp_cor:Row16Member E01231-000 2022-03-31 jpcrp_cor:Row17Member E01231-000 2022-03-31 jpcrp_cor:Row18Member E01231-000 2022-03-31 jpcrp_cor:Row19Member E01231-000 2022-03-31 jpcrp_cor:Row20Member E01231-000 2022-03-31 jpcrp_cor:Row21Member E01231-000 2022-03-31 jpcrp_cor:Row22Member E01231-000 2022-03-31 jpcrp_cor:Row23Member E01231-000 2022-03-31 jpcrp_cor:Row24Member E01231-000 2022-03-31 jpcrp_cor:Row25Member E01231-000 2022-03-31 jpcrp_cor:Row26Member E01231-000 2022-03-31 jpcrp_cor:Row27Member E01231-000 2022-03-31 jpcrp_cor:Row28Member E01231-000 2022-03-31 jpcrp_cor:Row29Member E01231-000 2022-03-31 jpcrp_cor:Row30Member E01231-000 2021-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01231-000 2021-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalSurplusMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:SakamotoKoichiMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:MiyaokaShinjiMember E01231-000 2023-06-21 jpcrp030000-asr_E01231-000:MatsumotoGunyuMember E01231-000 2022-04-01 2023-03-31 jpcrp030000-asr_E01231-000:YamaguchiMitsuguMember iso4217:JPY xbrli:shares iso4217:JPY xbrli:shares xbrli:pure