Company patents

TMEIC Corporation

TMEIC CORPORATION's patent strategy reveals a strong and growing emphasis on core electrical power technologies, with "Power Conversion (DC/AC, DC/DC)" and "Power Distribution & Storage" collectively accounting for over 70% of its portfolio and experiencing significant growth in 2025 at +69.6% and +169.2% respectively. While most categories show a decline in patenting activity so far in 2026, "Electrical Measurement" stands out with a 100.0% year-over-year growth, indicating an emerging focus in this area.

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.

188 US filings (since 2023) · 9 categories · 28 themes

Advanced Power Converter Topologies

Focuses on novel circuit configurations for DC-DC, DC-AC, or AC-DC conversion, often involving resonant operation, multi-level structures, or switched capacitors to improve efficiency, power density, or voltage conversion ratios.

Power Conversion (DC/AC, DC/DC)
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70since 2023
+52.0%YoY
Modular & Hybrid Power Supply Systems

Design and control of power supply architectures that combine multiple power sources (e.g., AC grid, DC battery, generators) or modular battery units, often featuring switching, conversion, and redundancy for enhanced reliability and flexibility.

Power Distribution & Storage
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38since 2023
+155.6%YoY
Control & Stability for Power Converters

Techniques and circuits designed to regulate output, manage input variations, mitigate resonance, or ensure stable operation of power converters under diverse load and source conditions. This includes adaptive, predictive, or fault-tolerant control schemes.

Power Conversion (DC/AC, DC/DC)
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37since 2023
+214.3%YoY
Power Electronics Integration

Design and assembly of power conversion, distribution, and protection modules, focusing on compact form factors, efficient electrical connections, and robust protective measures for electronic systems, often in high-power applications.

Printed Circuits & Electronic Assemblies
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27since 2023
+36.4%YoY
Inverter and Drive Circuit Control

Methods and circuits for controlling the power electronic converters (inverters, bridges) that supply current and voltage to electric motors, including switching strategies, voltage command generation, and multi-phase configurations.

Motor Control
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26since 2023
+100.0%YoY
Power Systems with Energy Storage & Grid Interaction

Integration of power converters with energy storage devices (batteries, supercapacitors) or grid interfaces, often involving AC/DC conversion, power flow management, and fault handling for hybrid power systems or specific applications like EVs or PV.

Power Distribution & StoragePower Conversion (DC/AC, DC/DC)
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21since 2023
+200.0%YoY
Adaptive Power Disconnection & Reclosing

Intelligent control systems that manage the connection and disconnection of power, including pre-charging capacitive loads, reclosing after faults, or isolating parts of a grid based on detected conditions, often involving smart switches and relays with adaptive logic.

Emergency Protective Circuits
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19since 2023
+60.0%YoY
Motor System Fault Detection

Methods and systems for identifying anomalies, failures, or impending issues within electric motors or their associated drive and power management circuits, often by monitoring electrical or operational parameters.

Motor ControlElectrical Measurement
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11since 2023
0.0%YoY
Advanced Circuit Protection

Devices and systems designed to protect electrical circuits from overcurrents, short circuits, and other faults, often involving rapid response, high voltage/current handling, and sophisticated interruption mechanisms.

Switches
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10since 2023
+200.0%YoY
Remote & Wireless Industrial Control

Systems and methods enabling the monitoring, configuration, and operation of industrial equipment and processes from a distance, often utilizing wireless communication protocols and networked platforms for enhanced flexibility and access.

Industrial Control Systems
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10since 2023
+150.0%YoY
Plasma Process Chamber Engineering

Design and control of plasma processing chambers, including heating, gas delivery, electrode configurations, and magnetic field control for uniform and efficient material processing in semiconductor manufacturing.

Electron / Ion Tubes & Discharge
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8since 2023
+500.0%YoY
RF Plasma Power Delivery

Systems and methods for delivering radio frequency (RF) power to plasma processing chambers, including impedance matching, pulse shaping, and feedback control for stable and efficient plasma generation.

Electron / Ion Tubes & Discharge
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8since 2023
+500.0%YoY
AM Process Monitoring & Control

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.

Industrial Control Systems
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8since 2023
-50.0%YoY
Advanced Fault Detection

Techniques and circuits for accurately identifying various electrical faults, such as ground faults, overcurrent, short circuits, switch malfunctions, or electrostatic discharge (ESD) events, often utilizing sensors, signal processing, and diagnostic algorithms.

Emergency Protective Circuits
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7since 2023
0.0%YoY
Sensorless Motor Control

Techniques for determining the rotor position, speed, or other operational parameters of an electric motor without dedicated physical sensors, often relying on back-EMF, current, or voltage measurements.

Motor Control
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5since 2023
new
Device Enclosure & Material Engineering

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.

Printed Circuits & Electronic Assemblies
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4since 2023
new
Advanced Electronic Packaging

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.

Printed Circuits & Electronic Assemblies
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4since 2023
new
Solar Power Integration & Applications

Systems that incorporate solar panels as a primary or auxiliary power source for various applications, including visual displays, remote devices, and portable battery charging, often emphasizing efficiency and adaptability.

Power Distribution & Storage
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3since 2023
new
Predictive Maintenance & Anomaly Detection

Utilizing sensor data, historical performance, and analytical models to anticipate equipment failures, diagnose faults, and estimate remaining useful life, thereby enabling proactive maintenance and reducing downtime.

Industrial Control Systems
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3since 2023
new
Motor Power and Energy Management

Strategies and circuits for optimizing the supply and consumption of electrical power for motors, including current limiting, regenerative energy handling, battery integration, and managing power quality.

Motor Control
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3since 2023
+100.0%YoY
Advanced Motor Control Algorithms

Sophisticated software or hardware-implemented control strategies that optimize motor performance, such as precise speed/torque regulation, vibration reduction, or efficiency, often using model-based, predictive, or adaptive techniques.

Motor Control
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3since 2023
0.0%YoY
EV Charging Systems & Control

Technologies for efficiently delivering power to electric vehicles, encompassing fast charging, wireless charging, and smart grid integration, alongside vehicle-side control and management of the charging process.

Power Distribution & Storage
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2since 2023
new
Package Thermal Management

Integrated solutions for dissipating heat generated by high-density semiconductor devices within the package, including embedded cooling structures, cold plates, and optimized fluidic channels.

Power Conversion (DC/AC, DC/DC)
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2since 2023
n/a
Advanced Material Characterization

Techniques and systems for precisely measuring electrical or electromagnetic properties of materials or components, often involving specialized resonators, waveguides, or multi-range measurement systems to ensure accuracy.

Electrical Measurement
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1since 2023
new
Vacuum System & Chamber Evacuation

Techniques and apparatus for achieving and maintaining vacuum conditions within charged particle and plasma processing chambers, including pump control, vacuum degree monitoring, and chamber sealing.

Electron / Ion Tubes & Discharge
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1since 2023
new
Battery Management Systems

Software, algorithms, and associated hardware for monitoring, controlling, and optimizing battery performance, safety, and lifespan, including charge/discharge cycles, thermal regulation, and system integration.

Power Distribution & Storage
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1since 2023
n/a
AI/ML for Industrial Process Optimizationfiltered

Applying machine learning and artificial intelligence models to analyze industrial data, predict system behavior, and optimize control strategies for improved efficiency, quality, or environmental compliance in manufacturing and operations.

Industrial Control Systems
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1since 2023
n/a
Surge & ESD Protection Circuits

Specialized circuits and devices designed to protect electrical and electronic systems from transient overvoltages caused by electrostatic discharge (ESD) or power surges, often involving suppressor diodes, gas discharge tubes (GDTs), or voltage clamping mechanisms.

Emergency Protective Circuits
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1since 2023
n/a

Patents