Company patents
DOWA ELECTRONICS MATERIALS CO., LTD.
DOWA ELECTRONICS MATERIALS CO., LTD. exhibits a surprising shift in its patent strategy, moving away from its historically strong "Powder Metallurgy" (42.2% of portfolio) which saw a significant decline of -69.2% so far in 2026, and a dramatic -90.0% decline in "Cables & Conductors" in 2026, despite a 150.0% surge in 2025. This suggests a strategic pivot, potentially towards emerging areas, given the sharp declines across several established categories in the current partial year.
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.
90 US filings (since 2023) · 12 categories · 22 themes
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 new conductive materials, including powders, composites, and alloys, designed for specific electrical performance, manufacturing processes, or applications beyond basic copper wires.
Innovations in the internal design of individual light-emitting diode chips or packages, focusing on semiconductor layer arrangements, electrode configurations, reflective elements, and light extraction features.
Development and optimization of the semiconductor material layers and their interfaces within an LED to control light emission properties, manage internal stress, and improve device efficiency.
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.
Techniques and methodologies for fabricating semiconductor devices, including etching, deposition, annealing, isolation, and doping steps, aimed at improving yield, performance, or enabling new structures.
Methods and structures for mass-producing and assembling arrays of micro-LEDs onto a substrate, including transfer processes, bonding techniques, and defect management.
Optical structures and lens designs that improve light extraction efficiency from LED dies and modules, including diffractive films, micro-lens arrays, reflectors, and color-conversion layers.
Specialized design and fabrication of light-emitting diodes specifically engineered to produce light in the deep ultraviolet (DUV) spectrum, often for applications like sterilization or curing.
Focuses on the composition, crystal structure, and synthesis methods of positive electrode active materials for rechargeable lithium-ion batteries, often involving complex metal oxides of nickel, cobalt, manganese, and lithium.
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.
Slurry compositions and coating processes for battery electrodes, including binder/active-material slurries, surface coating layers, and electrode-to-foil adhesion for cathode and anode.
Process and equipment for producing solid-state battery cells, including solid electrolyte synthesis (sulfide/oxide/polymer), thin-film deposition, lamination, sintering, dry-electrode fabrication, and stacking under controlled atmosphere.
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.
Techniques for forming thin films of metal oxides or related metal compounds on substrates, often using solution-based methods, for applications in electronics, optics, or specialized coatings.
LED devices and display systems designed to emit or utilize light across different spectral ranges, including visible and invisible light, or to create specific illumination patterns and immersive lighting experiences.
The design and manufacturing of integrated circuits that combine optical and electronic components, particularly for high-speed data communication between processors and memory.
Focuses on novel semiconductor materials, heterostructures, and doping profiles to improve photovoltaic conversion efficiency, stability, and spectral response.
Focuses on advanced pixel architectures, often involving vertical stacking (3D) or silicon-on-insulator (SOI) structures, to improve performance, density, or functionality of photodiodes, transistors, and floating diffusion regions within image sensor pixels.
Active anode materials and manufacturing techniques for rechargeable lithium-ion batteries, including silicon-carbon composites, graphite, lithium-metal anodes, and electrode coating processes that improve capacity, cycle life, and rate capability.
Systems and methods for automated substrate transport, precise positioning, temperature regulation, and chamber environment management to ensure process stability, uniformity, and yield in semiconductor manufacturing.
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.
Patents
Showing 1-4 of 4
Solid-State Battery Manufacturing