History
The Journey to AratasTechnology and a Spirit of Challenge Passed Down Through Generations
At the heart of Aratas is a history of technology and a spirit of challenge cultivated through
OMRON’s electronic components business.
By responding to changes in society and industry and continually refining the technologies needed to meet
evolving needs, we have created groundbreaking electronic components that bring these technologies to
life and expanded their potential across a wide range of applications.
Technology that responds to the needs of society, and electronic components that turn that technology into reality.
The technologies, expertise, and spirit of challenge cultivated through these two complementary strengths
have been passed down to today’s Aratas.
Microswitch assembly at headquarters
1933 Opening Up New Possibilities Through Technology
In the early 1930s, as modern industries developed in Japan, there was a growing need to put technologies introduced from overseas into practical use domestically and develop precision equipment with high levels of reliability. In response to calls from healthcare professionals for a way to precisely control X-ray imaging, OMRON’s founder developed a high-precision timer for X-ray photography in 1933, applying the principles of relays. The challenge of identifying society’s needs and addressing them through technology has been passed down to Aratas.
Laying the Foundation for Precision Equipment Technology
Timer for X-ray photography
Developed in response to the needs of healthcare professionals, this timer achieved highly precise timing control to within 1/20 of a second and became a product that laid the foundation for today’s Aratas.
Japan’s First Microswitch
In response to a request from the Aeronautical Research Institute, OMRON took on the challenge of domestically producing a high-performance, long-life switch. In 1943, Omron developed Japan’s first domestically produced microswitch.
Automatic cleaning machine using limit switches
Supporting the Evolution of Industrial Automation
From the postwar period through Japan’s era of rapid economic growth, factory automation advanced alongside the development of the manufacturing industry. Demand grew for highly reliable control components to operate production equipment efficiently and safely. Relay and switch technologies, the origins of Aratas’s business, supported the control of industrial machinery and production equipment, contributing to the advancement of manufacturing in Japan.
Core Technologies Supporting Industrial Automation
Relays for Industrial Equipment
With high levels of reliability and durability, these relays were widely adopted for controlling industrial machinery and production equipment. They contributed to the advancement of automation that supported manufacturing in Japan.
Safety Limit Switches
These switches were developed to support the safe operation of production equipment and machine tools. They were adopted at manufacturing sites across Japan for their high reliability and durability, contributing to safe and efficient production environments.
Supporting the Advancement of Electronics
In the 1980s and 1990s, advances in electronics technology rapidly drove the miniaturization and enhanced functionality of home appliances, communications equipment, and office automation equipment. The electrification of various types of work also progressed, driven in part by the growing popularity of power tools. As requirements for performance and quality became increasingly stringent, the electronic components supporting these products were also required to offer greater reliability and durability.
Aratas’s trigger switches for power tools, microswitches, and relays met these market needs and found applications in an expanding range of areas, supporting the advancement of electronic equipment and the electrification of various types of work.
High-Reliability Technologies Supporting the Advancement of Electronics
Relays for Telephone Switching Systems
Adopted as highly reliable relays supporting the advancement of communications infrastructure, they contributed to the development of information and communications networks.
Relays for Home Appliances
Responding to the trend toward miniaturization and higher functionality of home appliances, these highly reliable relays supported the advancement of a wide range of household devices.
Trigger Switches for Power Tools
Robust and highly durable, these trigger switches offered excellent operability and quality, contributing to the advancement of power tools, particularly for professional applications.
Supporting a Sustainable Future
From the 2000s onward, advances in digital technology have transformed the ways people, things, and information are connected with each other, while societal demands for reducing environmental impact and improving energy efficiency have also grown. As the challenges facing industry and everyday life have changed, products have been required to offer greater performance, smaller form factors, and greater energy efficiency. Building on the technologies and quality it has cultivated, Aratas has expanded into new fields such as sensing, energy management, and mobility, contributing to customer value creation and a more sustainable future.
Core Technologies Supporting the World of Tomorrow
Human Vision Components
Developed as image-sensing technology for recognizing human states and behavior, these components are used in fields including digital signage and industrial applications, contributing to new forms of value creation that connect people and society.
High-Capacity Relays for EVs
Adopted as key components for safely controlling high-voltage circuits in electric vehicles, these relays support the electrification of mobility and contribute to reducing environmental impact and creating a more sustainable future.
※The images shown here represent key application examples that have supported Omron's growth.
2026 OMRON’s Electronic Components
Business Becomes Aratas
Aratas’s journey has been one of responding to changes in society and industry, advancing electronic component technologies to meet the needs of each era, and creating new value together with customers. At the heart of these efforts is a commitment to responding to people’s aspirations through technology and continually expanding what is possible. Today, society is undergoing a major transformation, driven by efforts to achieve carbon neutrality and the advancement of digitalization.
Drawing on the technologies and spirit of challenge we have inherited, Aratas will tackle new societal challenges and create a new tomorrow through technologies that support sustainable energy, next-generation mobility, and digitalization.