Company patents

Enplas Corporation

Enplas Corporation's patent strategy reveals a surprising shift towards Laboratory Apparatus, which, despite a significant decline in 2025, has seen a remarkable 300.0% year-over-year growth so far in 2026, making it an emerging focus with 20.3% of its portfolio. This contrasts with a declining focus in Gearing & Transmissions, which has seen a -100.0% YoY decline in 2026, and Valves, which experienced a -100.0% YoY decline in 2025.

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.

143 US filings (since 2023) · 12 categories · 24 themes

Microfluidic Lab-on-Chip Devices

Miniaturized devices that manipulate small volumes of fluids (nanoliters to picoliters) through microchannels to perform laboratory functions like mixing, separation, reaction, and detection on a single chip.

Laboratory Apparatus
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26since 2023
-88.9%YoY
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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23since 2023
-22.2%YoY
Automated Liquid Handling

Systems and components designed for precise, automated manipulation, transfer, and dispensing of liquid samples and reagents, often involving pipettes, robotic arms, and specialized sample containers.

Laboratory Apparatus
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20since 2023
-33.3%YoY
Advanced Gear & Drivetrain Designs

Novel configurations and materials for gears and drivetrain components, including specialized profiles, self-aligning features, damping elements, and complex gear train arrangements like planetary, cycloidal, or strain wave gearing.

Gearing & Transmissions
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14since 2023
-75.0%YoY
Robust Electrical Contact Systems

Design of contact elements and their interaction to ensure stable, low-resistance electrical connection under various mechanical and environmental conditions, including spring forces and material choices.

Electrical Connectors
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13since 2023
-25.0%YoY
Advanced Display Backlight & Optics

Innovations in backlight units, optical films, and light management structures to enhance display performance, uniformity, viewing experience, or specific functionalities like touch.

Liquid Crystal & Optical Modulators
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10since 2023
0.0%YoY
Cable Termination & Management

Systems and methods for preparing, organizing, and electrically connecting individual conductors or cable bundles to connector terminals, ensuring reliable contact and strain relief.

Electrical Connectors
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8since 2023
-50.0%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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5since 2023
0.0%YoY
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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4since 2023
-50.0%YoY
Phased Array & Beamforming Antennas

Systems and methods for electronically steering or shaping antenna beams by controlling the phase and amplitude of signals fed to individual elements in an array, including calibration techniques and multi-antenna configurations.

Antennas
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4since 2023
-50.0%YoY
Hydraulic & Pneumatic Control Valves

Valves specifically designed for managing fluid power in hydraulic or pneumatic systems, including components for pressure regulation, flow direction, and system centering.

Valves
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3since 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
n/a
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
n/a
Connector Locking Mechanisms

Mechanical features or components integrated into connector housings or mating interfaces to ensure secure engagement and prevent accidental disengagement.

Electrical Connectors
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2since 2023
new
High-Speed Signal Integrity

Design techniques and components within connectors to minimize signal degradation, crosstalk, and impedance mismatches for high-frequency data transmission.

Electrical Connectors
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2since 2023
0.0%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
n/a
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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2since 2023
n/a
Integrated & Embedded Antennas

Design and manufacturing techniques for incorporating antenna structures directly into electronic devices, product housings, or materials, often under constraints of space, aesthetics, or environmental factors.

Antennas
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2since 2023
n/a
Power & Hybrid Connector Design

Connectors specifically designed for high current or voltage applications, often incorporating features for power delivery, thermal management, or combining power and signal lines.

Electrical Connectors
Who else files here? →
1since 2023
new
Antenna Isolation & Interference Mitigation

Techniques and structures used to reduce unwanted electromagnetic coupling, scattering, or interference between multiple antennas, different frequency bands, or sensitive electronic components within a device.

Antennas
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1since 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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1since 2023
n/a
Integrated Molecular Diagnostic Systems

Self-contained or modular devices designed to automate and integrate multiple steps of molecular diagnostic assays, from sample preparation to result interpretation, often for point-of-care or high-throughput applications.

Laboratory Apparatus
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1since 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
n/a
Multi-Band & Broadband Antenna Design

Antennas engineered to operate effectively across a wide continuous range of frequencies (broadband) or multiple distinct frequency bands, often requiring specific radiating element geometries or impedance matching circuits.

Antennas
Who else files here? →
1since 2023
n/a

Patents

Showing 1-10 of 318

Page 1 of 32
US 20260147167 A1APPLICATION
G02B6/42

Optical Module and Optical Receptacle

Filed:2025-11-25Pub:2026-05-28
Applicant:Enplas Corporation

[Problem] To provide an optical receptacle that can further reduce feedback light that reaches a light-emitting element. [Solution] An optical module including an optical transmission body, a light-receiving element, and an optical receptacle that is arranged between the optical transmission body and the light-receiving element and allows reception light emitted from an end face of the optical transmission body to enter the light-receiving element, wherein the optical receptacle includes a first optical section facing the end face of the optical transmission body and a second optical section facing the light-receiving element, the second optical section includes a second lens surface that focuses the reception light emitted from the end face of the optical transmission body and entering the optical receptacle via the first optical section onto the light-receiving element, the second lens surface is arranged such that a central axis of the second lens surface does not coincide with an optical axis of the reception light, and the second optical section further includes a feedback light suppression area on at least a part of an area where feedback light generated by reflecting the reception light by the light-receiving element is incident, the feedback light suppression area being shaped such that at least a portion of the feedback light does not reach the first optical section.