Company patents

NTT, Inc.

NTT Inc. is surprisingly diversifying its patent portfolio beyond traditional telecommunications, with an emerging focus on Medical Diagnostics & Surgery, which saw a remarkable 180.0% year-over-year growth in 2026 so far. While maintaining strength in Wireless Networks (12.7% of portfolio) with a 260.0% YoY increase, the company is also rapidly expanding its patenting in Machine Learning & AI (5.3% of portfolio, +122.2% YoY) and Optical Elements & Systems (6.6% of portfolio, +200.0% YoY), indicating a strategic shift towards advanced computing and hardware, even as areas like Routing, Switching & QoS (-30.8% YoY) and Cryptographic Mechanisms (-25.0% YoY) show signs of shifting priorities.

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.

544 US filings (since 2023) · 12 categories · 36 themes

Advanced RF & Beam Management

Techniques and hardware architectures for optimizing the radio frequency (RF) front-end, antenna systems, and beamforming strategies in wireless networks to improve signal quality, capacity, and interference mitigation.

Wireless Networks
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72since 2023
new
Optical Polarization Management

Methods and devices for controlling, detecting, and compensating for the polarization state of light signals in optical communication systems, crucial for reducing crosstalk and managing signal integrity.

Multiplex Communication
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67since 2023
new
Optical Wavelength Division Multiplexing

Techniques for combining and separating multiple optical signals at different wavelengths over a single optical fiber, including components like filters, comb sources, and tunable add/drop multiplexers.

Multiplex Communication
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47since 2023
new
Optical Fiber Sensing Systems

Systems and methods that utilize optical fibers as sensing elements or for transmitting sensing signals, often for distributed monitoring of environmental conditions, phase changes, or integrating sensing with communication.

Optical Elements & Systems
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47since 2023
new
Wireless Resource Multiplexing

Strategies for sharing wireless communication channels among multiple users or data streams, encompassing techniques like orthogonal frequency division multiplexing, spread spectrum, beamforming, and control channel allocation.

Multiplex Communication
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34since 2023
new
Advanced Audio Signal Processing

Techniques for enhancing, encoding, decoding, or separating speech and audio signals, often involving multi-microphone arrays, acoustic echo cancellation, beamforming, or advanced audio compression for improved clarity and quality.

Speech Processing
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31since 2023
new
Photonic Integration & Interconnects

The design and manufacturing of integrated circuits that combine optical and electronic components, particularly for high-speed data communication between processors and memory.

Optical Elements & Systems
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17since 2023
new
Hardware-Assisted Cryptographic Operations

Utilizing dedicated hardware components, secure enclaves, or trusted execution environments to perform cryptographic operations, enhancing security, performance, or isolation from software vulnerabilities.

Cryptographic Mechanisms
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13since 2023
new
Automated Network Provisioning

Systems and methods for automatically deploying, configuring, and updating network devices and services, including software updates, client onboarding, and topology management across various network types.

Network Management & Monitoring
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13since 2023
new
Network Intrusion Detection

Systems and methods for identifying and blocking unauthorized access, malicious activities, or abnormal behavior within a network by analyzing traffic, system logs, or behavioral patterns.

Network Security & Access Control
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12since 2023
new
Hardware Network Acceleration

Utilizing specialized hardware components such as network processing units (NPUs) or dedicated acceleration circuits to offload and speed up network packet processing, traffic generation, or time-sensitive network operations.

Network Management & Monitoring
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11since 2023
new
Network Traffic Management & QoS

Techniques and systems for optimizing network traffic flow, distributing loads across multiple paths or resources, and ensuring quality of service based on various criteria like application type, latency, or resource availability. This includes dynamic path selection, congestion control, and resource allocation.

Routing, Switching & QoS
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10since 2023
new
Virtualization & Secure Remote Access

Technologies enabling the creation and management of virtual computing environments, including virtual machines and virtual desktops, with an emphasis on secure and efficient remote access, updates, and performance.

Operating Systems & Program Control
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10since 2023
new
Wearable Physiological Sensing

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.

Medical Diagnostics & Surgery
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10since 2023
new
Granular Data Encryption & Access Control

Systems and methods for encrypting data at a fine-grained level (e.g., per data unit or based on sensitivity) and controlling access to it, often involving delegated authorization, contextual policies, or secure data sharing.

Cryptographic Mechanisms
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9since 2023
new
Large Model Text Generation

Techniques for generating human-like text or other content using large pre-trained models, often involving prompt engineering, speculative decoding, or multi-modal inputs for content creation.

Machine Learning & AI
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8since 2023
new
Network Clock Synchronization

Methods and systems for maintaining precise time alignment across network devices, often involving timestamps, phase-locked loops, and mechanisms for robustness against signal loss or attacks.

Multiplex Communication
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8since 2023
new
AI/ML Hardware Acceleration

Specialized hardware, architectural designs, and computational methods to improve the speed, efficiency, and security of artificial intelligence and machine learning model execution, particularly for inference and data processing.

Machine Learning & AI
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7since 2023
new
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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7since 2023
new
Metasurface & Diffractive Optics

Engineering of artificial subwavelength structures (meta-atoms) to create metasurfaces that manipulate light properties (phase, polarization, wavelength) for multi-functional optical devices.

Optical Elements & Systems
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6since 2023
new
Adaptive Speech Synthesis & Messaging

Technologies for generating artificial speech that is personalized, context-aware, or adaptable to specific virtual agents or messaging campaigns, often utilizing text-to-speech (TTS) and audio caching for efficient delivery.

Speech Processing
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6since 2023
new
Physical Layer & Interface Optimization

Enhancements to the physical and data link layers of network communication, focusing on hardware components, signal integrity, power efficiency, and efficient data transfer mechanisms for specific interfaces and buses.

Routing, Switching & QoS
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5since 2023
new
Secure Key Management & Rotation

Methods and systems for generating, distributing, updating, rotating, and securely destroying cryptographic keys to maintain data confidentiality and integrity over time, including quantum key distribution.

Cryptographic Mechanisms
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5since 2023
new
Advanced Optical Imaging & Lens Design

Development of sophisticated optical lens assemblies and computational methods to achieve high-resolution, precise, or specialized imaging, often for medical or scientific applications.

Optical Elements & Systems
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5since 2023
new
Access Control & Identity Management

Systems and methods for authenticating users, devices, or applications, authorizing their access to resources based on policies, and managing digital identities across various platforms.

Computer SecurityNetwork Security & Access Control
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4since 2023
new
Secure Communication Protocolsfiltered

Technologies for establishing and maintaining secure communication channels between devices or networks, often employing encryption, secure protocols, or virtual private networks (VPNs).

Network Security & Access Control
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4since 2023
new
Context-Aware Conversational AI

AI systems designed to engage in natural language dialogue, maintain conversation state, understand user intent, and generate relevant responses, often across multiple communication channels or modalities.

Speech Processing
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4since 2023
new
Network Operations, Reliability & Traffic

Techniques and systems designed to monitor network health, diagnose issues, optimize traffic flow, and ensure continuous operation and reduced downtime in complex network environments, including cloud and storage area networks.

Routing, Switching & QoSNetwork Management & Monitoring
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4since 2023
new
Green Network Optimization

Techniques and systems for reducing energy consumption in computer networks while maintaining or improving performance, often involving predictive modeling, simulation, and dynamic adjustments to network infrastructure.

Network Management & Monitoring
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4since 2023
new
AI/ML for Cryptographic Security

Applying artificial intelligence and machine learning techniques to enhance cryptographic systems, such as generating encryption models, improving zero-trust architectures, or enabling privacy-preserving computations like federated learning.

Computer Security
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4since 2023
new
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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4since 2023
new
Blockchain for Secure Transactions & Identity

Focuses on using distributed ledger technology (DLT) like blockchain to secure financial transactions, manage digital identities, or ensure data integrity and traceability across various applications.

Cryptographic Mechanisms
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3since 2023
new
System Resource & Power Optimization

Methods and systems for efficiently allocating computing resources, balancing workloads, and managing power states to improve performance, reduce energy consumption, or enhance reliability in computing platforms.

Operating Systems & Program Control
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3since 2023
new
Quantum Machine Learning

Developing and applying machine learning algorithms that leverage quantum computing principles, such as quantum circuits or autoencoders, for tasks like simulation or data processing.

Machine Learning & AI
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2since 2023
new
Federated & Distributed ML

Methods for training machine learning models across multiple decentralized devices or servers while keeping data localized, often involving aggregation of model parameters and secure communication.

Machine Learning & AI
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2since 2023
new
Deepfake Voice Detection

Methods and systems for identifying synthetic or manipulated speech (deepfake audio) using forensic analysis of audio features, such as breath patterns, vocoder signatures, or machine learning models to determine authenticity.

Speech Processing
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1since 2023
new

Patents

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