Company patents
HITACHI METALS, LTD.
HITACHI METALS, LTD.'s patent strategy shows a significant and surprising shift away from its core areas, with patenting activity in its top categories like Cables & Conductors (25.0% of portfolio) and Alloys (23.7% of portfolio) experiencing drastic declines of -94.4% and -94.1% respectively in 2024 compared to 2023, indicating a broad de-prioritization across nearly all its previously active technology domains, including a complete cessation of patenting in Magnets & Inductors and Electric Motors & Generators so far in 2024.
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.
76 US filings (since 2023) · 11 categories · 18 themes
Systems and methods for preparing, organizing, and electrically connecting individual conductors or cable bundles to connector terminals, ensuring reliable contact and strain relief.
Structural design and manufacturing techniques for bundling multiple wires into harnesses, including protective layers like braiding and interlocking armor, and methods for assembly and termination.
Development of new conductive materials, including powders, composites, and alloys, designed for specific electrical performance, manufacturing processes, or applications beyond basic copper wires.
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.
Development and processing of metal powders with specific magnetic properties, including soft magnetic alloys, permanent magnet materials, and insulated powders for electronic components, often involving precise control of particle size, morphology, and composition.
Development of polymer compositions and material structures for electrical insulation and protective sheathing of cables, focusing on properties like flame retardancy, flexibility, and semiconductivity.
Steel alloys designed to exhibit superior mechanical strength, toughness, and/or resistance to degradation at elevated temperatures, often achieved through precise control of alloying elements, microstructure (e.g., ferrite, martensite, bainite, retained austenite), and thermomechanical processing.
Techniques for designing and manufacturing compact, multi-functional magnetic components, such as inductors, transformers, and coils, often involving embedded structures, multilayer designs, or shared magnetic circuits to achieve higher power density or smaller form factors.
Manufacturing processes and techniques for producing stator cores, windings, and coils, including lamination, impregnation, hairpin winding, and segment coil bending, to improve motor efficiency, power density, or reliability.
Composite materials where a metallic matrix is reinforced with a second phase (e.g., ceramic particles, carbon nanotubes, diamond grains) to significantly enhance properties like hardness, wear resistance, stiffness, or strength, often used in cutting tools, wear parts, or structural applications.
Aluminum-based alloys developed for applications requiring low density combined with high strength, ductility, and formability, often involving specific alloying elements (e.g., Li, Mg, Si, Mn) and controlled aging or thermomechanical treatments.
Systems and sensors designed to measure the pressure difference between two distinct points or to capture rapid, transient pressure fluctuations in fluid or gas systems, often using diaphragms or pistons.
Techniques for building three-dimensional metal objects layer-by-layer using metal powders, including powder bed fusion, binder jetting, and directed energy deposition. This theme encompasses process mechanics, equipment design, and operational control for AM systems.
Systems and methods for real-time sensing, modeling, and closed-loop control of additive manufacturing parameters to ensure part quality, consistency, and process efficiency. This includes thermal management, atmospheric regulation, and precise material deposition.
Measures force or pressure by detecting changes in electrical capacitance. This typically involves the deformation of a dielectric material or the relative movement of conductive plates, altering the distance or area between them.
Sensors and systems designed to detect and quantify localized contact forces, pressure distribution, or touch interactions, often employed in robotics, human-machine interfaces, or object manipulation applications.
Development of novel motor architectures beyond traditional radial flux designs, including linear, axial, or multi-armature configurations, often to optimize for specific performance characteristics like torque density or form factor.
Development and optimization of organic chemical compounds and their structures, including guest-host systems and metal complexes, used within the emission layer to achieve specific light emission characteristics such as color, efficiency, and operational lifetime.
Patents
Showing 1-10 of 460