# 【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】 | 2020年６月26日
【事業年度】 | 第100期（自　2019年４月１日　至　2020年３月31日）
【会社名】 | 日本発条株式会社
【英訳名】 | NHK SPRING CO., LTD.
【代表者の役職氏名】 | 代表取締役社長　　茅本　隆司
【本店の所在の場所】 | 横浜市金沢区福浦三丁目10番地
【電話番号】 | 横浜(045)786－7519
【事務連絡者氏名】 | 執行役員企画管理本部経理部長　　池尻　修
【最寄りの連絡場所】 | 横浜市西区みなとみらい二丁目２番１号（横浜ランドマークタワー） 日本発条株式会社　横浜みなとみらい分館
【電話番号】 | 横浜(045)670－0001
【事務連絡者氏名】 | 営業本部管理部長　　石倉　英樹
【縦覧に供する場所】 | 日本発条株式会社　横浜みなとみらい分館 (横浜市西区みなとみらい二丁目２番１号) 日本発条株式会社　北関東支店 (群馬県太田市小角田町５番地) 日本発条株式会社　浜松支店 (浜松市中区田町330番地５号) 日本発条株式会社　名古屋支店 (名古屋市名東区上社一丁目1802番地) 日本発条株式会社　大阪支店 (大阪市淀川区宮原三丁目５番24号) 日本発条株式会社　広島支店 (広島市東区光町一丁目12番20号) 日本発条株式会社　福岡支店 (福岡市博多区博多駅前一丁目14番16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)

E01367 59910 日本発条株式会社 NHK SPRING 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 CTE CTE 2019-04-01 2020-03-31 FY 2020-03-31 2018-04-01 2019-03-31 2019-03-31 1 false false false E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:MichikoAshizawaMember E01367-000 2020-03-31 jpcrp_cor:Row1Member E01367-000 2020-03-31 jpcrp_cor:Row2Member E01367-000 2020-03-31 jpcrp_cor:Row3Member E01367-000 2020-03-31 jpcrp_cor:Row4Member E01367-000 2019-03-31 jpcrp_cor:Row1Member E01367-000 2019-03-31 jpcrp_cor:Row2Member E01367-000 2019-03-31 jpcrp_cor:Row3Member E01367-000 2019-03-31 jpcrp_cor:Row4Member E01367-000 2020-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2020-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01367-000 2020-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01367-000 2020-03-31 jppfs_cor:NonControllingInterestsMember E01367-000 2020-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2020-03-31 jppfs_cor:ShareholdersEquityMember E01367-000 2020-03-31 jppfs_cor:TreasuryStockMember E01367-000 2020-03-31 jppfs_cor:RetainedEarningsMember E01367-000 2020-03-31 jppfs_cor:CapitalSurplusMember E01367-000 2019-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01367-000 2019-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember jppfs_cor:NonConsolidatedMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalRetainedEarningsMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalSurplusMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:OtherCapitalSurplusMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalSurplusMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:OtherCapitalSurplusMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalCapitalSurplusMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E01367-000 2018-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2018-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01367-000 2019-04-01 2020-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01367-000 2018-04-01 2019-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01367-000 2020-03-31 jpcrp_cor:ReconcilingItemsMember E01367-000 2020-03-31 jpcrp_cor:ReportableSegmentsMember E01367-000 2019-04-01 2020-03-31 jpcrp_cor:ReportableSegmentsMember E01367-000 2019-03-31 jpcrp_cor:ReconcilingItemsMember E01367-000 2019-03-31 jpcrp_cor:ReportableSegmentsMember E01367-000 2018-04-01 2019-03-31 jpcrp_cor:ReconcilingItemsMember E01367-000 2018-04-01 2019-03-31 jpcrp_cor:ReportableSegmentsMember E01367-000 2019-04-01 2020-03-31 jpcrp_cor:ReconcilingItemsMember E01367-000 2019-03-31 jppfs_cor:CapitalStockMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsMember E01367-000 2019-03-31 jpcrp030000-asr_E01367-000:PrecisionSpringsAndComponentsReportableSegmentsMember E01367-000 2018-04-01 2019-03-31 jpcrp030000-asr_E01367-000:PrecisionSpringsAndComponentsReportableSegmentsMember E01367-000 2020-03-31 jpcrp030000-asr_E01367-000:SeatingReportableSegmentsMember E01367-000 2019-04-01 2020-03-31 jpcrp030000-asr_E01367-000:SeatingReportableSegmentsMember E01367-000 2019-03-31 jpcrp030000-asr_E01367-000:SeatingReportableSegmentsMember E01367-000 2018-04-01 2019-03-31 jpcrp030000-asr_E01367-000:SeatingReportableSegmentsMember E01367-000 2020-03-31 jpcrp030000-asr_E01367-000:SuspensionSpringsReportableSegmentsMember E01367-000 2019-04-01 2020-03-31 jpcrp030000-asr_E01367-000:SuspensionSpringsReportableSegmentsMember E01367-000 2019-03-31 jpcrp030000-asr_E01367-000:SuspensionSpringsReportableSegmentsMember E01367-000 2018-04-01 2019-03-31 jpcrp030000-asr_E01367-000:SuspensionSpringsReportableSegmentsMember E01367-000 2019-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2019-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01367-000 2020-03-31 jppfs_cor:CapitalStockMember E01367-000 2018-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E01367-000 2018-03-31 jppfs_cor:LegalRetainedEarningsMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:MasakazuToyodaMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:KiyohikoKammeiMember E01367-000 2019-03-31 jpcrp_cor:Row42Member E01367-000 2020-03-31 jpcrp_cor:Row42Member E01367-000 2019-03-31 jpcrp_cor:Row41Member E01367-000 2020-03-31 jpcrp_cor:Row41Member E01367-000 2019-03-31 jpcrp_cor:Row40Member E01367-000 2020-03-31 jpcrp_cor:Row40Member E01367-000 2019-03-31 jpcrp_cor:Row39Member E01367-000 2020-03-31 jpcrp_cor:Row39Member E01367-000 2019-03-31 jpcrp_cor:Row38Member E01367-000 2020-03-31 jpcrp_cor:Row38Member E01367-000 2019-03-31 jpcrp_cor:Row37Member E01367-000 2020-03-31 jpcrp_cor:Row37Member E01367-000 2019-03-31 jpcrp_cor:Row36Member E01367-000 2020-03-31 jpcrp_cor:Row36Member E01367-000 2019-03-31 jpcrp_cor:Row35Member E01367-000 2020-03-31 jpcrp_cor:Row35Member E01367-000 2019-03-31 jpcrp_cor:Row34Member E01367-000 2020-03-31 jpcrp_cor:Row34Member E01367-000 2019-03-31 jpcrp_cor:Row33Member E01367-000 2020-03-31 jpcrp_cor:Row33Member E01367-000 2019-03-31 jpcrp_cor:Row32Member E01367-000 2020-03-31 jpcrp_cor:Row32Member E01367-000 2019-03-31 jpcrp_cor:Row31Member E01367-000 2020-03-31 jpcrp_cor:Row31Member E01367-000 2018-04-01 2019-03-31 jppfs_cor:ShareholdersEquityMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:RetainedEarningsMember E01367-000 2018-03-31 jppfs_cor:NonControllingInterestsMember E01367-000 2018-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2018-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01367-000 2018-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01367-000 2019-03-31 jpcrp_cor:Row14Member E01367-000 2019-03-31 jpcrp_cor:Row15Member E01367-000 2019-03-31 jpcrp_cor:Row16Member E01367-000 2019-03-31 jpcrp_cor:Row17Member E01367-000 2019-03-31 jpcrp_cor:Row18Member E01367-000 2019-03-31 jpcrp_cor:Row19Member E01367-000 2019-03-31 jpcrp_cor:Row20Member E01367-000 2019-03-31 jpcrp_cor:Row21Member E01367-000 2019-03-31 jpcrp_cor:Row22Member E01367-000 2019-03-31 jpcrp_cor:Row23Member E01367-000 2019-03-31 jpcrp_cor:Row24Member E01367-000 2019-03-31 jpcrp_cor:Row25Member E01367-000 2019-03-31 jpcrp_cor:Row26Member E01367-000 2019-03-31 jpcrp_cor:Row27Member E01367-000 2019-03-31 jpcrp_cor:Row28Member E01367-000 2019-03-31 jpcrp_cor:Row29Member E01367-000 2019-03-31 jpcrp_cor:Row30Member E01367-000 2020-06-26 E01367-000 2020-03-31 E01367-000 2019-04-01 2020-03-31 E01367-000 2019-03-31 E01367-000 2018-04-01 2019-03-31 E01367-000 2018-03-31 E01367-000 2017-04-01 2018-03-31 E01367-000 2017-03-31 E01367-000 2016-04-01 2017-03-31 E01367-000 2016-03-31 E01367-000 2015-04-01 2016-03-31 E01367-000 2018-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2018-03-31 jppfs_cor:ShareholdersEquityMember E01367-000 2018-03-31 jppfs_cor:TreasuryStockMember E01367-000 2018-03-31 jppfs_cor:RetainedEarningsMember E01367-000 2018-03-31 jppfs_cor:CapitalSurplusMember E01367-000 2018-03-31 jppfs_cor:CapitalStockMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E01367-000 2020-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalRetainedEarningsMember E01367-000 2020-06-26 jpcrp_cor:Row5Member E01367-000 2019-04-01 2020-03-31 jpcrp030000-asr_E01367-000:IndustrialMachineryAndEquipmentAndOtherOperationsReportableSegmentsMember E01367-000 2019-03-31 jpcrp030000-asr_E01367-000:IndustrialMachineryAndEquipmentAndOtherOperationsReportableSegmentsMember E01367-000 2018-04-01 2019-03-31 jpcrp030000-asr_E01367-000:IndustrialMachineryAndEquipmentAndOtherOperationsReportableSegmentsMember E01367-000 2020-03-31 jpcrp030000-asr_E01367-000:PrecisionSpringsAndComponentsReportableSegmentsMember E01367-000 2019-04-01 2020-03-31 jpcrp030000-asr_E01367-000:PrecisionSpringsAndComponentsReportableSegmentsMember E01367-000 2019-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2019-03-31 jppfs_cor:ShareholdersEquityMember E01367-000 2019-03-31 jppfs_cor:TreasuryStockMember E01367-000 2020-03-31 jpcrp_cor:Row12Member E01367-000 2020-03-31 jpcrp_cor:Row13Member E01367-000 2020-03-31 jpcrp_cor:Row14Member E01367-000 2020-03-31 jpcrp_cor:Row15Member E01367-000 2020-03-31 jpcrp_cor:Row16Member E01367-000 2020-03-31 jpcrp_cor:Row17Member E01367-000 2020-03-31 jpcrp_cor:Row18Member E01367-000 2020-03-31 jpcrp_cor:Row19Member E01367-000 2020-03-31 jpcrp_cor:Row20Member E01367-000 2020-03-31 jpcrp_cor:Row21Member E01367-000 2020-03-31 jpcrp_cor:Row22Member E01367-000 2020-03-31 jpcrp_cor:Row23Member E01367-000 2020-03-31 jpcrp_cor:Row24Member E01367-000 2020-03-31 jpcrp_cor:Row25Member E01367-000 2020-03-31 jpcrp_cor:Row26Member E01367-000 2020-03-31 jpcrp_cor:Row27Member E01367-000 2020-03-31 jpcrp_cor:Row28Member E01367-000 2020-03-31 jpcrp_cor:Row29Member E01367-000 2020-03-31 jpcrp_cor:Row30Member E01367-000 2019-03-31 jpcrp_cor:Row5Member E01367-000 2019-03-31 jpcrp_cor:Row6Member E01367-000 2019-03-31 jpcrp_cor:Row7Member E01367-000 2019-03-31 jpcrp_cor:Row8Member E01367-000 2019-03-31 jpcrp_cor:Row9Member E01367-000 2019-03-31 jpcrp_cor:Row10Member E01367-000 2019-03-31 jpcrp_cor:Row11Member E01367-000 2019-03-31 jpcrp_cor:Row12Member E01367-000 2019-03-31 jpcrp_cor:Row13Member E01367-000 2019-03-31 jppfs_cor:RetainedEarningsMember E01367-000 2019-03-31 jppfs_cor:CapitalSurplusMember E01367-000 2020-03-31 jpcrp_cor:UnallocatedAmountsAndEliminationMember E01367-000 2020-03-31 jpcrp_cor:No7MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No6MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No5MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No4MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No3MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No2MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No1MajorShareholdersMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember E01367-000 2019-03-31 jppfs_cor:ReserveForAdvancedDepreciationOfNoncurrentAssetsMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:LegalRetainedEarningsMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:CapitalStockMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:NonControllingInterestsMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:CapitalSurplusMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:TreasuryStockMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:ForeignCurrencyTranslationAdjustmentMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:ShareholdersEquityMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:TreasuryStockMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:RetainedEarningsMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:CapitalSurplusMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:CapitalStockMember E01367-000 2019-04-01 2020-03-31 jpcrp_cor:DirectorsExcludingOutsideDirectorsMember E01367-000 2019-04-01 2020-03-31 jpcrp_cor:CorporateAuditorsExcludingOutsideCorporateAuditorsMember E01367-000 2019-04-01 2020-03-31 jpcrp_cor:OutsideDirectorsAndOtherOfficersMember E01367-000 2020-03-31 jpcrp_cor:Row5Member E01367-000 2020-03-31 jpcrp_cor:Row6Member E01367-000 2020-03-31 jpcrp_cor:Row7Member E01367-000 2020-03-31 jpcrp_cor:Row8Member E01367-000 2020-03-31 jpcrp_cor:Row9Member E01367-000 2020-03-31 jpcrp_cor:Row10Member E01367-000 2020-03-31 jpcrp_cor:Row11Member E01367-000 2020-06-26 jpcrp_cor:Row1Member E01367-000 2020-06-26 jpcrp_cor:Row2Member E01367-000 2020-06-26 jpcrp_cor:Row3Member E01367-000 2020-06-26 jpcrp_cor:Row4Member E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:KazumiTamamuraMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:TakashiKayamotoMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:ToruSugiyamaMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:KazuhisaUemuraMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:KeiichiroSueMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:KatsukoTanakaMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:KenjiShimizuMember E01367-000 2020-03-31 jpcrp_cor:CorporateSharedMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jpcrp030000-asr_E01367-000:SuspensionSpringsReportableSegmentsMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jpcrp030000-asr_E01367-000:SeatingReportableSegmentsMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jpcrp030000-asr_E01367-000:PrecisionSpringsAndComponentsReportableSegmentsMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jpcrp030000-asr_E01367-000:IndustrialMachineryAndEquipmentAndOtherOperationsReportableSegmentsMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember jpcrp_cor:CorporateSharedMember E01367-000 2020-06-26 jpcrp_cor:OrdinaryShareMember E01367-000 2020-03-31 jpcrp_cor:OrdinaryShareMember E01367-000 2020-03-31 jpcrp_cor:SharesWithNoVotingRightsMember E01367-000 2020-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsTreasurySharesEtcMember E01367-000 2020-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsOtherMember E01367-000 2020-03-31 jpcrp_cor:SharesWithFullVotingRightsTreasurySharesEtcMember E01367-000 2020-03-31 jpcrp_cor:OrdinarySharesTreasurySharesSharesWithFullVotingRightsTreasurySharesEtcMember E01367-000 2020-03-31 jpcrp_cor:SharesWithFullVotingRightsOtherMember E01367-000 2020-03-31 jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsOtherMember E01367-000 2020-03-31 jpcrp_cor:SharesLessThanOneUnitMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalCapitalSurplusMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalRetainedEarningsMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalSurplusMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:OtherCapitalSurplusMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalCapitalSurplusMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E01367-000 2020-03-31 jpcrp_cor:No10MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No9MajorShareholdersMember E01367-000 2020-03-31 jpcrp_cor:No8MajorShareholdersMember E01367-000 2020-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2019-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2018-04-01 2019-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2018-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2017-04-01 2018-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2017-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2016-04-01 2017-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2016-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2015-04-01 2016-03-31 jppfs_cor:NonConsolidatedMember E01367-000 2020-03-31 jpcrp030000-asr_E01367-000:IndustrialMachineryAndEquipmentAndOtherOperationsReportableSegmentsMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01367-000 2019-04-01 2020-03-31 jppfs_cor:NonControllingInterestsMember E01367-000 2019-03-31 jppfs_cor:NonControllingInterestsMember E01367-000 2020-03-31 jpcrp_cor:OrdinarySharesSharesLessThanOneUnitMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:IchiroEbiharaMember E01367-000 2020-06-26 jpcrp030000-asr_E01367-000:HiromiTamakoshiMember xbrli:shares xbrli:pure iso4217:JPY iso4217:JPY xbrli:shares