【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】

2025年6月23日

【事業年度】

第101期(自 2024年4月1日 至 2025年3月31日)

【会社名】

大井電気株式会社

【英訳名】

Oi Electric Co., Ltd.

【代表者の役職氏名】

代表取締役社長  石田 甲

【本店の所在の場所】

神奈川県横浜市港北区菊名七丁目3番16号

【電話番号】

045(433)1361(代表)

【事務連絡者氏名】

取締役経営管理本部長  仁井 克己

【最寄りの連絡場所】

神奈川県横浜市港北区菊名七丁目3番16号

【電話番号】

045(433)1361(代表)

【事務連絡者氏名】

取締役経営管理本部長  仁井 克己

【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)

 

E01859 68220 大井電気株式会社 Oi Electric 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 2024-04-01 2025-03-31 FY 2025-03-31 2023-04-01 2024-03-31 2024-03-31 1 false false false E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:ChibaHirokatsuMember E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:SeritaKeijiMember E01859-000 2024-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01859-000 2024-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01859-000 2024-03-31 jppfs_cor:NonControllingInterestsMember E01859-000 2023-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:NiiKatsumiMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2025-06-23 jpcrp_cor:Row5Member E01859-000 2025-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01859-000 2025-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01859-000 2024-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01859-000 2025-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01859-000 2024-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01859-000 2024-03-31 jpcrp030000-asr_E01859-000:InformationAndCommunicationApparatusProductionSaleBusinessReportableSegmentsMember E01859-000 2024-03-31 jpcrp030000-asr_E01859-000:NetworkConstructionMaintenanceBusinessReportableSegmentsMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:TreasuryStockMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:NonControllingInterestsMember E01859-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E01859-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalStockMember E01859-000 2025-03-31 jpcrp030000-asr_E01859-000:NetworkConstructionMaintenanceBusinessReportableSegmentsMember E01859-000 2025-03-31 jpcrp030000-asr_E01859-000:InformationAndCommunicationApparatusProductionSaleBusinessReportableSegmentsMember E01859-000 2024-04-01 2025-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01859-000 2024-04-01 2025-03-31 jpcrp030000-asr_E01859-000:NetworkConstructionMaintenanceBusinessReportableSegmentsMember E01859-000 2024-04-01 2025-03-31 jpcrp030000-asr_E01859-000:InformationAndCommunicationApparatusProductionSaleBusinessReportableSegmentsMember E01859-000 2025-03-31 jpcrp_cor:Row1Member E01859-000 2025-03-31 jpcrp_cor:SharesWithFullVotingRightsOtherMember E01859-000 2025-03-31 jpcrp_cor:Row2Member E01859-000 2025-03-31 jpcrp_cor:Row3Member E01859-000 2023-04-01 2024-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:LegalCapitalSurplusMember E01859-000 2024-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsMember E01859-000 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:TreasuryStockMember E01859-000 2024-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:ShareholdersEquityMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E01859-000 2024-03-31 jppfs_cor:CapitalSurplusMember E01859-000 2024-03-31 jppfs_cor:RetainedEarningsMember E01859-000 2024-03-31 jppfs_cor:TreasuryStockMember E01859-000 2024-03-31 jppfs_cor:ShareholdersEquityMember E01859-000 2025-03-31 jppfs_cor:NonControllingInterestsMember E01859-000 2025-03-31 jppfs_cor:ShareholdersEquityMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:CapitalStockMember E01859-000 2025-03-31 jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsOtherMember E01859-000 2025-03-31 jpcrp_cor:SharesLessThanOneUnitMember E01859-000 2025-03-31 jpcrp_cor:OrdinarySharesSharesLessThanOneUnitMember E01859-000 2024-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsMember E01859-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:RetainedEarningsBroughtForwardMember E01859-000 2025-03-31 jpcrp_cor:No8MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No9MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No10MajorShareholdersMember E01859-000 2023-04-01 2024-03-31 jpcrp_cor:TotalOfReportableSegmentsAndOthersMember E01859-000 2023-04-01 2024-03-31 jpcrp030000-asr_E01859-000:InformationAndCommunicationApparatusProductionSaleBusinessReportableSegmentsMember E01859-000 2023-04-01 2024-03-31 jpcrp030000-asr_E01859-000:NetworkConstructionMaintenanceBusinessReportableSegmentsMember E01859-000 2024-04-01 2025-03-31 jpcrp_cor:DirectorsExcludingAuditAndSupervisoryCommitteeMembersAndOutsideDirectorsMember E01859-000 2024-04-01 2025-03-31 jpcrp_cor:DirectorsAppointedAsAuditAndSupervisoryCommitteeMembersExcludingOutsideDirectorsMember E01859-000 2024-04-01 2025-03-31 jpcrp_cor:OutsideDirectorsAndOtherOfficersMember E01859-000 2022-04-01 2023-03-31 E01859-000 2021-04-01 2022-03-31 E01859-000 2021-03-31 E01859-000 2020-04-01 2021-03-31 E01859-000 2025-06-23 E01859-000 2025-03-31 E01859-000 2024-04-01 2025-03-31 E01859-000 2024-03-31 E01859-000 2023-04-01 2024-03-31 E01859-000 2023-03-31 E01859-000 2022-03-31 E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:OkamotoKazuhisaMember E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:KannoYoshinoriMember E01859-000 2024-04-01 2025-03-31 jpcrp_cor:ConsolidatedAccountingGroupMember E01859-000 2023-04-01 2024-03-31 jpcrp_cor:ConsolidatedAccountingGroupMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:CapitalSurplusMember E01859-000 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:OtherCapitalSurplusMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jppfs_cor:OtherCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jpcrp_cor:Row1Member E01859-000 2024-03-31 jpcrp_cor:Row2Member E01859-000 2024-03-31 jpcrp_cor:Row3Member E01859-000 2025-06-23 jpcrp_cor:Row1Member E01859-000 2025-06-23 jpcrp_cor:Row2Member E01859-000 2025-06-23 jpcrp_cor:Row3Member E01859-000 2025-06-23 jpcrp_cor:Row4Member E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:IshidaKouMember E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:MotomuraTakeshiMember E01859-000 2025-03-31 jpcrp030000-asr_E01859-000:InformationAndCommunicationApparatusProductionSaleBusinessReportableSegmentsMember jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jpcrp030000-asr_E01859-000:NetworkConstructionMaintenanceBusinessReportableSegmentsMember jppfs_cor:NonConsolidatedMember E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:SatoHiroyukiMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:ShareholdersEquityMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalSurplusMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jpcrp_cor:No1MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No2MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No3MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No4MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No5MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No6MajorShareholdersMember E01859-000 2025-03-31 jpcrp_cor:No7MajorShareholdersMember E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:YasuiHirokiMember E01859-000 2025-06-23 jpcrp030000-asr_E01859-000:HujiiMasatoMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:RemeasurementsOfDefinedBenefitPlansMember E01859-000 2022-04-01 2023-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2022-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2021-04-01 2022-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2021-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2020-04-01 2021-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:CapitalStockMember E01859-000 2023-03-31 jppfs_cor:CapitalSurplusMember E01859-000 2023-03-31 jppfs_cor:RetainedEarningsMember E01859-000 2023-03-31 jppfs_cor:TreasuryStockMember E01859-000 2023-03-31 jppfs_cor:ShareholdersEquityMember E01859-000 2023-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01859-000 2023-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01859-000 2023-03-31 jppfs_cor:NonControllingInterestsMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:CapitalStockMember E01859-000 2023-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:CapitalSurplusMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:ShareholdersEquityMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:RetainedEarningsMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:TreasuryStockMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:NonControllingInterestsMember E01859-000 2024-03-31 jppfs_cor:CapitalStockMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:RetainedEarningsMember E01859-000 2025-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2024-04-01 2025-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jppfs_cor:CapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2025-03-31 jppfs_cor:CapitalStockMember E01859-000 2025-03-31 jppfs_cor:CapitalSurplusMember E01859-000 2025-03-31 jppfs_cor:RetainedEarningsMember E01859-000 2025-03-31 jppfs_cor:TreasuryStockMember E01859-000 2025-03-31 jppfs_cor:ValuationAndTranslationAdjustmentsMember E01859-000 2025-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember E01859-000 2025-06-23 jpcrp_cor:OrdinaryShareMember E01859-000 2025-03-31 jpcrp_cor:OrdinaryShareMember E01859-000 2025-03-31 jpcrp_cor:SharesWithNoVotingRightsMember E01859-000 2025-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsTreasurySharesEtcMember E01859-000 2025-03-31 jpcrp_cor:SharesWithRestrictedVotingRightsOtherMember E01859-000 2025-03-31 jpcrp_cor:SharesWithFullVotingRightsTreasurySharesEtcMember E01859-000 2025-03-31 jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsTreasurySharesEtcMember E01859-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ShareholdersEquityMember E01859-000 2023-03-31 jppfs_cor:ValuationDifferenceOnAvailableForSaleSecuritiesMember jppfs_cor:NonConsolidatedMember E01859-000 2023-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:ValuationAndTranslationAdjustmentsMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:RetainedEarningsBroughtForwardMember jppfs_cor:NonConsolidatedMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:LegalCapitalSurplusMember jppfs_cor:NonConsolidatedMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:NonConsolidatedMember jppfs_cor:CapitalSurplusMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:RetainedEarningsMember jppfs_cor:NonConsolidatedMember E01859-000 2023-04-01 2024-03-31 jppfs_cor:TreasuryStockMember jppfs_cor:NonConsolidatedMember E01859-000 2024-03-31 jppfs_cor:CapitalStockMember jppfs_cor:NonConsolidatedMember xbrli:shares xbrli:pure iso4217:JPY utr:tCO2e iso4217:JPY xbrli:shares