Company patents
NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
NIPPON STEEL CHEMICAL & MATERIAL CO., LTD. shows a surprising patent strategy with a strong, albeit fluctuating, focus on Organic Electronics (OLED), which constitutes 32.6% of its portfolio, despite a -33.3% decline in patenting activity so far in 2026. While many categories saw declines in 2025 and 2026 (partial data), the company is demonstrating an emerging focus on Polymer Additives, which experienced a remarkable +300.0% YoY growth in 2024 and again so far in 2026, indicating a strategic pivot within its materials sector.
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.
135 US filings (since 2023) · 12 categories · 26 themes
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.
Development of novel materials and designs for bonding, sealing, and underfill applications, focusing on improving mechanical integrity, electrical performance, and preventing defects like cracks or delamination in chip-to-chip connections.
Methods for temporarily attaching a wafer or substrate to a carrier for thinning, dicing, or other processing, followed by controlled debonding, often using light-sensitive resins, temporary adhesives, or roughened interfaces.
Synthesis and formulation of polymers, such as epoxy resins, polyimides, or ionic binders, tailored for specific functions in electronic components like sealing, insulation, or energy storage.
Polymer compositions engineered for enhanced heat resistance, thermal stability in molten states, or improved processability at high temperatures, often involving specific copolymers, blends, or stabilizing additives for applications in electronics or automotive.
Synthesis and formulation of epoxy resins, often derived from phenolic precursors like cardanol and vanillin, for applications requiring specific thermal, mechanical, or electrical properties.
Polymer compositions incorporating inorganic or organic filler materials to impart specific functional properties such as thermal conductivity, flame retardancy, electrical conductivity, or enhanced mechanical strength and dimensional stability.
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.
Polymers incorporating reversible bonds or crosslinks that enable reprocessing, self-healing, or tunable mechanical properties, often responding to stimuli like heat, light, or pH for de-crosslinking and re-crosslinking.
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.
Development of rubber and elastomer compositions, often involving specific polymer blends, additives (e.g., process oils, reinforcing agents), and cure packages, to achieve desired mechanical properties like abrasion resistance, wet grip, shear durability, or flexibility for demanding applications.
Additives or compositions specifically formulated for surface application or modification to impart protective, decorative, or specialized functional properties to polymer products.
Novel materials and processes for forming low-resistance electrical contacts and interconnects within semiconductor devices, including selective deposition, silicidation, and barrier layers for improved performance and scaling.
Engineering solutions for creating electronic devices with bendable, foldable, or stretchable form factors, often involving hinges, flexible displays, and sliding mechanisms to enable dynamic physical configurations.
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.
Materials added to polymers to modify their thermal transfer properties, typically increasing conductivity for heat dissipation in applications like electronics or battery packs.
Techniques and structural designs for fabricating the physical layers of an OLED display, including material deposition, patterning, and methods to protect the active organic layers from environmental degradation like moisture and oxygen.
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.
Methods for synthesizing polyurethanes and polyureas, including non-isocyanate routes, using various monomers, catalysts, and curing agents, often for foams, coatings, or adhesives.
Development and application of polymer compositions designed for reprocessability, recyclability, or incorporating sustainable additives, often featuring reversible bonds or bio-based components.
Techniques for manufacturing thin polymer layers, sheets, or multi-layer structures, often optimized for specific properties such as flexibility, barrier function, filtration, or mechanical strength.
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.
Processes and apparatus for disassembling spent batteries and recovering valuable materials (e.g., metals, electrolytes, plastics) through mechanical, chemical, or electrochemical methods for reuse or sustainable disposal.
Synthesis and modification of high-performance thermoplastic polymers, such as poly(arylene ether ketone) (PAEK) or polycarbonates, to achieve enhanced thermal stability, mechanical strength, or specific processing characteristics.
Substances incorporated into polymer systems to control or enhance adhesive properties, cross-linking reactions, or processing characteristics such as mold release and flow.
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.
Patents
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