CompanyCompetitive AnalysisCompany Patent Opposition Analysis

Explore patent oppositions filed by Hitachi against competitors, revealing strategic technology disputes and market positioning. Monitor opposition details, timelines, and disputed innovations to understand competitive dynamics and IP enforcement strategy.

Last updated on: Aug 7, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

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

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: Aug 7, 2025
Patent NumberGrant DateTitleTotal Oppositions
Feb 12, 2025Train Traffic Control System And Method For Safe Displaying A State Indication Of A Route And Train Control System1
Jan 15, 2025Power Conversion Device1
Dec 4, 2024Spheroidal Graphite Cast Iron With Excellent Gas Defect Resistance1
Nov 13, 2024Waste Crane Operation Device And Waste Crane Operation Method1
Nov 6, 2024Precipitation Hardening Type Martensitic Steel And Process For Producing Same1
Oct 16, 2024Migration Of An Existing Technical Railway Installation To A New Technical Railway Installation5
Mar 27, 2024Hot-Working Tool Material, Method For Manufacturing Hot-Working Tool, And Hot-Working Tool1
Mar 20, 2024Method For Optimising The Burnout Of Exhaust Gases Of An Incinerator1
Feb 28, 2024Power Distribution System Loss Reduction With Distributed Energy Resource Control1
Dec 13, 2023Waste-Heat Recovery System In Oil-Cooled Gas Compressor1

Top competitors of Hitachi

List of top competitors of Hitachi based on patent oppositions.