Company patents

MAYEKAWA MFG. CO., LTD.

MAYEKAWA MFG. CO., LTD. shows a surprising shift in its patent strategy, with a strong focus on manufacturing technologies, as evidenced by the emergence of 'Pumps (Positive Displacement)' with 6 patents in 2025 (9.5% of its portfolio) from zero in prior years, and 'Manipulators & Robotics' experiencing a 200.0% YoY growth in 2024. While traditionally strong in 'Refrigerators & Cold Storage' and 'Refrigeration' (each 12.7% of portfolio), the complete absence of new patents across nearly all categories so far in 2026 suggests a potential re-evaluation or a significant slowdown in new filings compared to previous years.

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.

63 US filings (since 2023) · 11 categories · 22 themes

Refrigerant Circuit Optimization

Design and control strategies for improving the efficiency, stability, and operational flexibility of refrigerant circuits, including component integration, flow management, phase separation, and pressure regulation.

Refrigeration
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5since 2023
0.0%YoY
Water & Ice Dispensing Systems

Integrated systems within refrigerators for dispensing chilled water, ice, or preparing beverages, often including filtration, storage components, and user interface controls.

Refrigerators & Cold Storage
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4since 2023
n/a
Integrated Actuation and Drive Systems

Methods and components for converting power into mechanical motion to drive pump mechanisms, encompassing electric motors, hydraulic actuators, and specialized motion converters like ball screws or solenoids.

Pumps (Positive Displacement)
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3since 2023
new
Portable and Compact Pump Devices

Design and engineering solutions for creating self-contained, mobile, or miniaturized pump systems, often incorporating battery power, ergonomic features, and integrated components for ease of use and transport.

Pumps (Positive Displacement)
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3since 2023
new
Advanced Heat Exchanger Architectures

Novel designs and configurations for heat exchangers that improve heat transfer efficiency, compactness, or enable specific phase change or separation processes within refrigeration and heat pump cycles.

Heat Exchange Components
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3since 2023
+100.0%YoY
Internal Flow Path Optimization

Techniques and structures within heat exchangers designed to enhance heat transfer efficiency by controlling and optimizing fluid flow, including baffle arrangements, jet impingement, and condensate management.

Heat Exchange Components
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3since 2023
+100.0%YoY
Enhanced Surface Fin Geometries

Design and optimization of fin structures, baffles, and surface textures within heat exchangers to increase heat transfer area, promote turbulence, or manage fluid flow for improved thermal performance.

Heat Exchange Components
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3since 2023
+100.0%YoY
Airflow & Temperature Zone Controlfiltered

Systems for precisely directing and controlling chilled air within a refrigerator, often creating distinct temperature zones or optimizing cooling efficiency for different compartments.

Refrigerators & Cold Storage
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3since 2023
new
Compressor Efficiency Control

Techniques and mechanisms to optimize the performance, energy consumption, and operational range of compressors in refrigeration and heat pump systems, often involving variable control of compression parameters like volume ratio or speed.

Refrigeration
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3since 2023
0.0%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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3since 2023
n/a
Alternative Refrigeration Technologies

Non-traditional refrigeration and heat pump systems that utilize principles other than vapor compression, such as magnetocaloric effects, thermoelectric effects, absorption cycles, or thermochemical reactions.

Refrigeration
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2since 2023
new
Advanced Sealing and Valve Design

Innovations in the design, materials, and maintenance of seals, valves, and related components to improve durability, reduce leakage, and enable specific pump functions like high-pressure operation or automated seal replacement.

Pumps (Positive Displacement)
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2since 2023
new
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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2since 2023
new
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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2since 2023
new
Automated Visual Inspection

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.

Material & Chemical Analysis
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2since 2023
+100.0%YoY
Advanced Biomarker Detection Assays

Methods and compositions for identifying, quantifying, or characterizing specific biological molecules (e.g., nucleic acids, proteins, metabolites, antibodies) or microbial species, often for diagnostic, prognostic, or quality control applications.

Material & Chemical Analysis
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2since 2023
+100.0%YoY
Advanced Valve Actuation

Mechanisms and control systems for precisely moving valve elements, often involving electric motors, cams, solenoids, or pneumatic/hydraulic pilots, to achieve desired flow or position.

Valves
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2since 2023
new
Conveyor Belt Design & Monitoring

Innovations in the physical structure, materials, support mechanisms, and operational monitoring of conveyor belts to improve durability, cleanliness, safety, or specific handling capabilities, including specialized drive mechanisms.

Conveying & Handling
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2since 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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2since 2023
n/a
Pump Control and Efficiency

Techniques and systems for optimizing pump operation, including capacity modulation, energy management, pulsation reduction, and precise fluid dispensing to improve performance and reduce energy consumption.

Pumps (Positive Displacement)
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1since 2023
new
Integrated Valve Sensing & Diagnostics

Incorporating sensors and processing capabilities directly into valve systems to monitor operational state, detect malfunctions, measure flow parameters, or verify proper installation.

Valves
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1since 2023
new
Valves for Sanitary & HVAC Systems

Specialized valve designs for domestic and commercial applications involving water distribution, temperature control, and air conditioning, often focusing on integration, materials, and specific flow characteristics.

Valves
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1since 2023
new

Patents

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