Company patents
TAIYO YUDEN CO., LTD.
TAIYO YUDEN CO., LTD's patent strategy reveals a strong, yet volatile, focus on Capacitors, which represent 52.4% of its portfolio and saw a significant 65.3% growth in 2025, despite a -65.5% decline so far in 2026. While core areas like Magnets & Inductors and Cement & Ceramics are seeing declining patenting activity (YoY -8.0% and -27.6% in 2025, respectively), the company showed an emerging interest in Inorganic Devices (Thermoelectric, Piezo) with a remarkable 300.0% YoY growth in 2024, though this has since leveled off.
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.
614 US filings (since 2023) · 12 categories · 27 themes
Focuses on the internal and external structural elements, material compositions (e.g., ceramic dielectrics, electrode metals), and manufacturing techniques used to create multilayer ceramic capacitors (MLCCs), including aspects like mechanical robustness and internal circuitry.
Ceramic materials and components engineered for specific functional applications, such as electronics, energy storage, wear resistance, or high-temperature heating elements.
Focuses on the physical design, materials, and methods for packaging capacitors and integrating them onto circuit boards, including external electrode structures, conductive adhesives, and mounting techniques to ensure reliable electrical and mechanical connections.
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.
Explores the composition and integration of solid or gel-based electrolyte materials within various capacitor types, such as solid electrolytic capacitors and supercapacitors, to enhance performance, stability, and safety.
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.
Focuses on the design, fabrication, and application of piezoelectric materials and devices for sensing, actuation, or wave generation, including material properties, single crystal growth, and protective layers.
Methods and structures for encapsulating, interconnecting, and integrating impedance network components, particularly acoustic filters, into larger modules or systems.
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.
Devices utilizing piezoelectric materials to generate and filter acoustic waves, often for radio frequency applications, including surface acoustic wave (SAW) and bulk acoustic wave (BAW) structures.
Methods and structures for integrating and enclosing electronic components into compact, multi-functional modules, often involving embedded components, multi-layer substrates, and electromagnetic shielding for performance and miniaturization.
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.
Methods and processes for fabricating ceramic matrix composites (CMCs), including preform creation, infiltration techniques, and densification to form complex shapes with enhanced properties.
Systems and devices that utilize controlled magnetic fields, often generated by electromagnets, to produce mechanical motion, precise positioning, or manipulate physical phenomena like plasma distribution.
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.
Methods and compositions for identifying, quantifying, or characterizing specific biological molecules (e.g., nucleic acids, proteins, metabolites, antibodies) or microbial species, often for diagnostic, prognostic, or quality control applications.
Circuits designed to transform the impedance of a source to match the impedance of a load, maximizing power transfer or minimizing signal reflections, often involving inductors, capacitors, and transformers.
Manufacturing processes and material compositions for creating electronic circuits on flexible or conformable substrates, enabling novel form factors, enhanced durability, and new applications beyond rigid PCBs.
Focuses on the structural integrity, housing, mounting, and physical integration of battery cells into robust and protected packs within electric vehicles, including manufacturing considerations.
Development of memory cells utilizing resistive switching or phase-change materials, including novel material compositions, multi-layered structures, and integration with selector devices like bipolar junction transistors, to achieve non-volatile storage.
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.
Fabrication methods and material engineering for halide perovskite-based photoelectronic devices, particularly solar cells, addressing challenges such as material synthesis, nanowire formation, and lead leakage mitigation.
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.
Development of devices and methods for non-invasive or minimally invasive collection and analysis of physiological data, often from wearable sensors, to monitor health, activity, or specific conditions.
Describes capacitors designed with actively variable capacitance, often employing phase-change materials or mechanical actuation, for use in radio frequency (RF) components, reconfigurable intelligent surfaces, and other tunable electronic systems.
Methods and materials used to construct robust and protective enclosures for electronic devices, focusing on structural integrity, impact resistance, thermal dissipation, and specialized material properties for enhanced durability.
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 1-10 of 1025