Company patents

DAIHEN Corporation

DAIHEN Corporation's patent strategy reveals a surprising recent surge in core manufacturing technologies, with Manipulators & Robotics patents growing by an impressive 142.9% in 2025 and Welding & Soldering patents increasing by 70.0% in the same year, despite both categories showing a decline so far in 2026. This indicates a strong, albeit fluctuating, focus on bolstering its foundational industrial automation and joining technologies, while areas like Image Processing and Impedance Networks (Filters, Resonators) have seen consistent declines, suggesting a shifting priority away from these computing and semiconductor-related fields.

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.

134 US filings (since 2023) · 8 categories · 18 themes

Welding Process Control

Systems and methods for precisely controlling welding parameters such as power, speed, oscillation, and material feed to optimize weld quality, consistency, and efficiency, often involving automated or semi-automated processes.

Welding & Soldering
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41since 2023
+88.9%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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35since 2023
-50.0%YoY
Welding & Soldering Tool Design

Design and features of welding and soldering tools, fixtures, and accessories that enhance user safety, ergonomics, operational efficiency, and precise workpiece manipulation, including protective equipment and clamping mechanisms.

Welding & Soldering
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33since 2023
+75.0%YoY
Robot Health Monitoring & Safety

Methods and systems for monitoring the operational status, detecting anomalies, ensuring safe interaction, and preventing damage or injury in robotic systems.

Manipulators & Robotics
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20since 2023
+166.7%YoY
Robotic Item Picking & Placement

Focuses on the mechanisms, control, and sensing involved in robots or automated systems accurately grasping, moving, and releasing individual items, often in conjunction with conveyor systems or storage units, including path planning and end effector design.

Conveying & Handling
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16since 2023
+700.0%YoY
Weld Quality Monitoring & NDT

Systems and methods for assessing the quality and characteristics of welds or solder joints, often involving non-destructive testing (NDT) techniques, image processing, or real-time feedback for process control and defect detection.

Welding & Soldering
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14since 2023
+66.7%YoY
Impedance Matching Networks

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.

Impedance Networks (Filters, Resonators)
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10since 2023
0.0%YoY
Plasma Process Chamber Engineeringfiltered

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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10since 2023
-80.0%YoY
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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6since 2023
+50.0%YoY
Ion Implantation Control & Metrology

Methods and apparatus for precise wafer positioning, ion beam uniformity, and dose monitoring during ion implantation processes in semiconductor device manufacturing.

Electron / Ion Tubes & Discharge
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6since 2023
0.0%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 Conversion (DC/AC, DC/DC)Power Distribution & Storage
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5since 2023
+50.0%YoY
Electronic Component Bonding

Specialized welding or bonding techniques and apparatuses tailored for joining small-scale electronic components, integrated circuits, or semiconductor wafers, emphasizing precision, miniaturization, and electrical connectivity.

Welding & Soldering
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5since 2023
-50.0%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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5since 2023
0.0%YoY
Specialized End-Effectors & Mechanisms

Design and control of advanced robotic grippers, tools, and mechanical linkages for specific manipulation tasks or operating in challenging environments.

Manipulators & Robotics
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3since 2023
+300.0%YoY
Autonomous Path Planning

Algorithms and systems for generating, optimizing, and executing trajectories for autonomous vehicles or robots to move through an environment, often involving obstacle avoidance, route validation, and goal reaching.

Manipulators & Robotics
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2since 2023
+100.0%YoY
Laser Material Processing

Techniques and systems utilizing laser beams for precise material modification, including cutting, cladding, ablation, and surface treatment, often for joining, shaping, or removing material.

Welding & Soldering
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2since 2023
n/a
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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1since 2023
new
Vehicle Docking & Loading Automation

Systems and mechanisms designed to safely and efficiently interface transport vehicles (trucks, trailers) with loading docks or automated loading systems, including vehicle restraint, telescopic loading arms, and specialized vehicle-mounted conveyors.

Conveying & Handling
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1since 2023
n/a

Patents

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