Company patents

Hitachi-GE Nuclear Energy, Ltd.

Hitachi-GE Nuclear Energy, Ltd. demonstrates a surprising patent strategy heavily focused on materials science, with "Material & Chemical Analysis" representing 18.6% of its portfolio and "Separation Processes (Filtration, Distillation)" showing strong growth at +100.0% YoY in 2025, suggesting an emphasis on advanced material development and processing for nuclear applications, rather than direct nuclear reactor design. However, many categories, including "Separation Processes" and "Alloys," show a significant decline in patenting activity so far in 2026, with a -100.0% YoY drop.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

43 US filings (since 2023) · 12 categories · 14 themes

Emerging Contaminant Removal

Specific techniques and materials developed to remove persistent or difficult-to-treat pollutants from water, such as per- and polyfluoroalkyl substances (PFAS), micropollutants, or specific industrial chemicals.

Catalysts & Reactors
Who else files here? →
4since 2023
+100.0%YoY
Automated Visual Inspection

Systems that employ imaging and image processing to automatically detect defects, verify states, or ensure quality control in manufactured goods, printed materials, or industrial processes.

Material & Chemical Analysis
Who else files here? →
4since 2023
new
Water Contaminant Remediation

Systems and methods specifically engineered for removing pollutants and impurities from water sources, ranging from groundwater decontamination to point-of-use filtration, often employing adsorption, membrane, or distillation techniques.

Separation Processes (Filtration, Distillation)
Who else files here? →
3since 2023
+100.0%YoY
Alloy Coatings & Surface Treatment

Methods and compositions for applying metallic or alloy layers to a substrate, or modifying the surface of an alloy, to impart specific functional properties such as corrosion resistance, wear resistance, electrical insulation, or improved adhesion, without altering the bulk properties significantly.

Alloys
Who else files here? →
3since 2023
+100.0%YoY
Gas Stream Purification

Technologies and systems for removing unwanted components or separating desired gases from a mixed gas stream, including adsorption, absorption, and membrane-based methods.

Separation Processes (Filtration, Distillation)
Who else files here? →
2since 2023
new
Industrial & Bioprocess Filtration

Membrane and depth filtration for industrial separation, gas purification, and bioprocess clarification including cross-flow, dead-end, tangential flow filtration, and oil/water separation.

Separation Processes (Filtration, Distillation)
Who else files here? →
2since 2023
new
Power Systems with Energy Storage & Grid Interaction

Integration of power converters with energy storage devices (batteries, supercapacitors) or grid interfaces, often involving AC/DC conversion, power flow management, and fault handling for hybrid power systems or specific applications like EVs or PV.

Power Distribution & Storage
Who else files here? →
2since 2023
new
Modular & Hybrid Power Supply Systemsfiltered

Design and control of power supply architectures that combine multiple power sources (e.g., AC grid, DC battery, generators) or modular battery units, often featuring switching, conversion, and redundancy for enhanced reliability and flexibility.

Power Distribution & Storage
Who else files here? →
2since 2023
new
Damage Detection & Structural Assessment

Automated systems using image processing and artificial intelligence to identify, classify, and assess the extent of damage to structures or objects, supporting maintenance or insurance claims.

Image Processing
Who else files here? →
1since 2023
new
Digital Twin & System Simulation

Creating virtual models (digital twins) of complex physical systems to simulate their behavior, predict performance, validate designs, or guide operations under various conditions.

Electronic Design Automation (CAD/EDA)
Who else files here? →
1since 2023
new
Electronic System Layout & Integration

Automated methods and tools for generating, optimizing, and verifying the physical layout and interconnections of electronic components, including integrated circuits, printed circuit boards, and system-level interface protection.

Electronic Design Automation (CAD/EDA)
Who else files here? →
1since 2023
new
Water & Wastewater Membrane Treatment

Membrane-based separation for water purification, contaminant removal, desalination, and wastewater treatment, including reverse osmosis, ultrafiltration, and forward osmosis modules.

Separation Processes (Filtration, Distillation)
Who else files here? →
1since 2023
new
Functionally Graded Materials & Coatings

Production of materials where properties vary continuously or discontinuously through the volume, often achieved by combining different powders or applying specialized coatings like thermal sprays to enhance surface hardness, wear resistance, or thermal properties.

Powder Metallurgy
Who else files here? →
1since 2023
n/a
Advanced Solder & Flux Formulations

Development of novel chemical compositions for fluxes, solders, and filler metals to improve material properties, enhance joint reliability, reduce defects, or meet specific application requirements like high-temperature reflow or specialized material joining.

Welding & Soldering
Who else files here? →
1since 2023
n/a

Patents

Page 1 of 1