IP Verse

Hitachi competitive analysis

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Latest oppositions filed by Hitachi

Explore patent oppositions filed by Hitachi against competitors, revealing strategic technology disputes and market positioning.

Last updated on: Oct 23, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP4208726
Device And System For Indirectly Determining The Temperature Of A Power TransformerMASCHINENFABRIK REINHAUSENMay 21, 2025
EP4088298
Electrical Switching ArrangementSIEMENS ENERGYMar 14, 2025
EP3984092
Organic Heat Transfer System, Method And FluidTHE LUBRIZOLDec 28, 2023
EP3744605
Railway Train Operation Control Method And SystemCRRC CHANGCHUN RAILWAY VEHICLESOct 3, 2023
EP3796539
Modular Switching CellMASCHINENFABRIK REINHAUSENAug 23, 2023
EP2654190
Method For Operating An Electric CircuitGE ENERGY POWER CONVERSIONAug 16, 2023
EP3494589
System And Method For Switching High VoltagesSIEMENSFeb 1, 2023
EP2887524
Power ConverterTOKYO INSTITUTE OF TECHNOLOGYMay 11, 2022
EP3660397
Waste Composition Estimation Device, System, Program, Method, And Data StructureEBARA ENVIRONMENTAL PLANTJan 20, 2022
EP2976821
Method And Apparatus For Compensating Non-Active Currents In Electrical Power NetworksMERUS POWER DYNAMICSFeb 5, 2021

Latest patents of Hitachi opposed by its competitors

Explore Hitachi's recently opposed patents, revealing key competitive challenges and strategic patent disputes in the industry. Track oppositions filed by competitors to understand technology battlegrounds and assess potential risks.

Last updated on: Oct 23, 2025
Patent NumberGrant DateTitleTotal Oppositions
EP3549842
Aug 13, 2025Train Traffic Control System And Method For Safe Displaying A State Indication Of A Route And Train Control System1
EP3228490
Jan 15, 2025Power Conversion Device1
EP3358026
Dec 4, 2024Spheroidal Graphite Cast Iron With Excellent Gas Defect Resistance1
EP3450281
Nov 27, 2024Method For Vital Coupling Of A Route-Based Protection System And A Block-Based Protection System, Train Movement Protection System1
EP3694741
Nov 27, 2024Train Traction System1
EP3467380
Nov 13, 2024Waste Crane Operation Device And Waste Crane Operation Method1
EP2927337
Nov 6, 2024Precipitation Hardening Type Martensitic Steel And Process For Producing Same1
EP3809009
Oct 30, 2024Vehicular Disc Brake1
EP3900999
Oct 16, 2024Migration Of An Existing Technical Railway Installation To A New Technical Railway Installation5
EP3173500
Mar 27, 2024Hot-Working Tool Material, Method For Manufacturing Hot-Working Tool, And Hot-Working Tool1

Latest publications and patents of Hitachi New

Explore the latest publications and patents granted to Hitachi, showcasing their recent innovations and technological advancements.

Last updated on: Oct 22, 2025
Publication NumberPublication DateTitleLegal Status

Get instant update for new patents of Hitachi

EP3549842
Aug 13, 2025Train Traffic Control System And Method For Safe Displaying A State Indication Of A Route And Train Control SystemPatent Maintained As Amended
EP3228490
Jan 15, 2025Power Conversion DevicePatent Maintained As Amended
EP3358026
Dec 4, 2024Spheroidal Graphite Cast Iron With Excellent Gas Defect ResistancePatent Maintained As Amended
EP3694741
Nov 27, 2024Train Traction SystemGranted And Under Opposition
EP3450281
Nov 27, 2024Method For Vital Coupling Of A Route-Based Protection System And A Block-Based Protection System, Train Movement Protection SystemGranted And Under Opposition
EP3467380
Nov 13, 2024Waste Crane Operation Device And Waste Crane Operation MethodPatent Maintained As Amended
EP2927337
Nov 6, 2024Precipitation Hardening Type Martensitic Steel And Process For Producing SamePatent Maintained As Amended
EP3809009
Oct 30, 2024Vehicular Disc BrakeGranted And Under Opposition
EP3900999
Oct 16, 2024Migration Of An Existing Technical Railway Installation To A New Technical Railway InstallationGranted And Under Opposition
EP3173500
Mar 27, 2024Hot-Working Tool Material, Method For Manufacturing Hot-Working Tool, And Hot-Working ToolPatent Maintained As Amended

Latest PTAB cases involving Hitachi

Discover the latest PTAB cases involving Hitachi, highlighting their recent legal challenges and patent disputes.

Last updated on: Oct 28, 2025
Proceeding NumberFiling DatePetitionerRespondentStatus

Get alerts for PTAB Cases involving Hitachi

IPR2018-01523Aug 7, 2018ASM HOLDINGHITACHI KOKUSAI ELECTRICTerminated-Settled
IPR2018-01479Jul 31, 2018ASM HOLDINGHITACHI KOKUSAI ELECTRICTerminated-Settled
IPR2017-01312Apr 24, 2017HENGDIAN GROUP DMEGC MAGNETICSHITACHI METALSFinal Written Decision
IPR2017-01313Apr 24, 2017HENGDIAN GROUP DMEGC MAGNETICSHITACHI METALSInstitution Denied
IPR2014-01265Aug 11, 2014ALLIANCE OF RARE EARTH PERMANENT MAGNET INDUSTRYHITACHI METALSFinal Written Decision
IPR2014-01266Aug 11, 2014ALLIANCE OF RARE EARTH PERMANENT MAGNET INDUSTRYHITACHI METALSFinal Written Decision
IPR2013-00408Jul 1, 2013HITACHI CABLE AMERICABELDENTerminated-Settled

Peer Comparison New

IP litigation analysis comparing Hitachi with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Oct 23, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
MITSUBISHI HITACHI METALS MACHINERY - 1 - -
SMS GROUP8661 - -