Company patents
TOYO SEIKAN CO., LTD.
Toyo Seikan Co., Ltd.'s patent strategy reveals a surprising diversification into aerospace, with Unmanned Aerial Vehicles (Drones) accounting for 10.7% of its portfolio, despite a recent decline in filings (YoY -57.1% in 2025 and -66.7% so far in 2026). While its core "Containers & Packaging" remains dominant at 52.9%, the significant presence in aerospace, alongside an emerging focus on "Coating Compositions" with a 33.3% YoY growth so far in 2026, suggests a strategic pivot beyond its traditional materials and packaging roots.
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.
140 US filings (since 2023) · 12 categories · 23 themes
Methods and apparatuses for creating unique package structures, such as recesses in specific materials, blister packages, or single-dose units, and for controlled dispensing of products from storage into these containers.
Multi-layer polymer films engineered to provide superior barrier properties against gases (e.g., oxygen), moisture, or aromas, often incorporating heat-sealing or resealing mechanisms for food and product preservation.
Containers or packaging components featuring active mechanisms for controlled release, preparation, or delivery of their contents, such as liquids, bulk materials, volatile compounds, or single-serve portions.
Techniques for combining multiple materials or layers, often with specialized surface treatments, coatings, or assembly methods, to create functional or aesthetically enhanced plastic articles, including consumer goods and encapsulated electronics.
Technologies and methods for securely closing, sealing, and maintaining the integrity of packages, including heat sealing, vacuum sealing, strapping, and specialized closure units, often involving material interaction and atmosphere control.
Design aspects of user-replaceable cartridges or containers for printing consumables (e.g., ink, tape, labels) that facilitate easy installation, proper positioning, type identification, and reliable supply to the printer.
Development and application of polymer compositions designed for reprocessability, recyclability, or incorporating sustainable additives, often featuring reversible bonds or bio-based components.
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.
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.
Systems and mechanisms designed for the automated movement, feeding, transfer, and destacking of products or packaging materials within a packaging line, often utilizing various types of conveyors and actuators.
Systems and components for storing, delivering, circulating, and managing printing liquids (e.g., ink) to the printhead, often including features for pressure regulation, filtration, degassing, and balancing liquid levels.
Design features and components integrated into containers to improve ease of carrying, handling, or transport, such as specialized handles, wheels, or adjustable elements.
Systems and methods for monitoring, controlling, and optimizing the movement of unmanned aerial vehicles (UAVs) and other aircraft, including real-time connectivity, flight planning, and route modification.
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.
Focuses on the structural integrity, housing, mounting, and physical integration of battery cells into robust and protected packs within electric vehicles, including manufacturing considerations.
Technologies for storing, managing pressure, and safely distributing hydrogen fuel within an aircraft, including tank integration, pressure control, and leak detection.
Additives or compositions specifically formulated for surface application or modification to impart protective, decorative, or specialized functional properties to polymer products.
Thin, multi-layered films and structures specifically designed for electronic applications, including flexible substrates for devices, display panel components, and active material layers for battery electrodes.
Systems and methods for using drones equipped with various sensors (optical, chemical, LiDAR) to collect data for monitoring environmental conditions, inspecting infrastructure, or assessing agricultural assets.
Mechanisms and algorithms designed to enhance the stability, precision, and safety of drone flight, including damping systems, rotor dynamics, fault-tolerant control, and transition between flight modes.
Solutions for the automated deployment, retrieval, and payload handling of drones, often involving integration with other vehicles or specialized ground infrastructure for specific applications like package delivery.
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.
Mechanisms and methods for preventing or removing clogs, ink residue, or contaminants from printhead nozzles and surfaces to ensure consistent print quality and extend printhead lifespan.
Patents
Showing 1-10 of 215