Initiatives as a power supply manufacturer

UNIFIVE is a power supply manufacturer that, since its establishment in 1989, has consistently focused for over 35 years on the development, quality assurance, stable supply, and custom solutions of power supplies for various industries, centering on AC/DC Power Adapters — Desktop & Wall-Mount and switching power supplies. Leveraging its in-house production system and a network of offices in Tokyo, Taiwan, China, the United States, South Korea, and Hong Kong, the company provides a stable supply of power solutions to customers both in Japan and overseas.

Support for multiple models and stable supply system

UNIFIVE provides integrated support from specification information gathering to design, development, mass production, supply, and post-shipment maintenance. Based on this in-house integrated system, we achieve both support for multiple models and individual specifications and stable supply.

Capability to support multiple models and individual specifications Power supplies are critical safety components, and in many cases, simply applying a standard product is not sufficient for adoption. UNIFIVE provides integrated support from organizing specification information to design, development, mass production, supply, and post-shipment maintenance, based on each customer's requirements and evaluation criteria. Approximately 1,500 new models developed annually and approximately 15,000 sample units shipped annually. In addition to supporting individual specifications, we flexibly handle everything from small-lot custom and semi-custom production to large-lot mass production. Furthermore, our in-house production system and domestic and overseas network support stable supply and short lead times. System supporting stable supply Based on our in-house production system and domestic and overseas network, we have established a structure that covers raw material procurement, logistics, and post-shipment maintenance. We also handle projects requiring short lead-time switching or replacement, ensuring continuous supply.

Quality assurance system covering all processes

UNIFIVE manages quality across all processes, from specification information gathering to design, development, mass production, and post-shipment maintenance. Rather than limiting quality to a specific department, it is operated as a company-wide system in which design, manufacturing, quality assurance, and management work together.

System for building quality throughout all processes During the design phase, the QA department conducts design verification from a third-party perspective, and during manufacturing, a management system based on process FMEA is implemented. From daily quality improvements to handling market complaints, we consistently carry out root cause identification, corrective actions, and recurrence prevention. Management structure supporting continuous improvement At the beginning of each year, quality targets are set across all departments, and progress is reviewed monthly by management. From executives to frontline staff, the entire organization works together to continuously improve quality issues.

View details of our quality initiatives

AC/DC Power Adapters — Desktop & Wall-Mount/Board power supply custom development and design support

UNIFIVE provides custom solutions based on customer requirements, leveraging our extensive development experience. We support miniaturization, heat countermeasures, lightning surge, noise and harmonic countermeasures, original designs, compliance with international safety standards, waterproof and dustproof solutions, and low-noise design according to application and environment. We also support compliance design with international energy efficiency regulations such as DOE Level VII and ErP Lot 7.

Beyond proposing standard products, we provide practical development proposals starting from specifications close to your requirements. Below are examples of our custom development achievements.

Examples of custom development

View custom and semi-custom case studies

Extensive track record across diverse industries

UNIFIVE's power supplies have met the requirements of a wide range of industries. Based on the safety, low noise, environmental resistance, and mounting requirements for each application, we provide optimal power supply proposals. Below are examples of our main application fields.

We also support fields other than those listed above. For specific adoption examples, please refer to our major clients page.

View major clients