Company patents

ADVANTEST CORPORATION

Advantest Corporation's patent strategy is heavily concentrated in Electrical Measurement, which accounts for 62.6% of its portfolio, yet shows a significant decline so far in 2026 with a -67.7% YoY drop. Surprisingly, while core semiconductor categories like Semiconductor Manufacturing Process and Semiconductor Packaging & Encapsulation saw rapid growth in 2024 (YoY +133.3% and +66.7% respectively), they have seen a sharp decline in 2025 and so far in 2026, indicating a potential shift in focus despite their critical relevance to the company's industry.

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.

297 US filings (since 2023) · 11 categories · 21 themes

Semiconductor Electrical Test

Techniques and apparatus for electrically testing semiconductor devices, integrated circuits, or wafers during manufacturing or post-assembly, including built-in self-test (BIST) and contact reliability assessment.

Electrical Measurement
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176since 2023
+5.1%YoY
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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49since 2023
+6.7%YoY
Memory Reliability, Testing & Repair

Methods and circuits for detecting and mitigating defects, ensuring data integrity, and enabling self-testing and repair mechanisms within memory devices and subsystems.

Memory & Storage (Static)
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32since 2023
-7.1%YoY
Magnetic Resonance Sensing

Methods and apparatus for measuring magnetic fields or utilizing magnetic resonance principles for medical diagnostics, material analysis, or precise localization, including gradient field measurement in MRI.

Electrical Measurement
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11since 2023
+66.7%YoY
Signal Non-Linearity & Calibration

Techniques and circuits designed to identify, compensate for, or correct non-linearities, offsets, and other imperfections in signal processing paths, particularly within analog-to-digital, digital-to-analog, or digital-to-time converters.

Coding & Decoding
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9since 2023
+66.7%YoY
Memory System Performance & Reliability

Hardware and control techniques for optimizing memory access latency, ensuring data integrity, and managing storage resources efficiently. This includes error correction, read/write voltage control, and intelligent data placement or in-memory computation.

Memory & Storage (Static)
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7since 2023
+50.0%YoY
High-Performance ADC/DAC Architectures

Focuses on the architectural and circuit-level innovations for Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs) to improve speed, accuracy, linearity, and power efficiency. Includes specific types like SAR and Delta-Sigma, and their constituent components.

Coding & Decoding
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6since 2023
+100.0%YoY
3D Die Stacking & Vertical Interconnects

Techniques for stacking multiple semiconductor dies or active layers vertically to achieve higher density and shorter interconnections, often utilizing through-silicon vias (TSVs) or other vertical conductive paths like through-hole electrodes.

Semiconductor Packaging & Encapsulation
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6since 2023
0.0%YoY
Digital Filtering & Signal Equalization

Methods and architectures for processing digital signals to enhance quality, remove noise, manage group delay, and facilitate symbol decision, often involving digital filters and equalization techniques.

Coding & Decoding
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5since 2023
+50.0%YoY
Power Consumption & Current Sensing

Devices and methods for accurately measuring or monitoring electrical current draw and power usage in various systems, often for control, optimization, or safety purposes.

Electrical Measurement
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5since 2023
new
Wafer Handling and Process Environment Control

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.

Semiconductor Manufacturing Process
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5since 2023
n/a
Advanced Memory Cell Structuresfiltered

Focuses on the physical design, materials, and manufacturing processes for individual memory cells, including transistor structures, interconnects, and multi-layered (3D) architectures to enhance density and performance.

Memory & Storage (Static)
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4since 2023
-50.0%YoY
Adaptive Lighting Control Systems

Systems and methods for dynamically adjusting light output, distribution, color, or intensity based on environmental conditions, user presence, content, or specific application needs.

Electric Heating & Lighting Control
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4since 2023
0.0%YoY
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.

Semiconductor Manufacturing ProcessSemiconductor Packaging & Encapsulation
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3since 2023
-50.0%YoY
High-Density Magnetic Component Integration

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.

Magnets & Inductors
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3since 2023
new
In-Memory Sensing & Data Path

Design and operation of analog and mixed-signal circuits within the memory array, such as page buffers, sense amplifiers, and data latches, responsible for reading and writing data from/to memory cells.

Memory & Storage (Static)
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2since 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.

Electrical Measurement
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2since 2023
n/a
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.

Electrical Measurement
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1since 2023
n/a
Secure Data Storage & Provenance

Techniques for protecting data at rest or in backup, ensuring its integrity, confidentiality, and verifiable origin, often involving encryption, unique identifiers, or secure repositories.

Computer Security
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1since 2023
n/a
Secure Data Sharing & Rights Management

Mechanisms to facilitate the secure exchange of data between different entities or systems while enforcing usage policies, managing digital content rights, and ensuring data consistency during replication or transfer.

Computer Security
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1since 2023
n/a
Advanced Heating Systems

Focuses on novel heating elements, power delivery, and thermal management for efficient and controlled aerosol generation. This includes resistive, inductive, and other heating methods, as well as heat distribution and retention.

Electric Heating & Lighting Control
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1since 2023
n/a

Patents

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