Product Categories
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Power supply SPD (lightning damage countermeasure)
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Others
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SPD for devices and equipment
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Communication SPD (Lightning Protection)
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Thunder Blocker (Lightning Damage Prevention)
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Related products (lightning damage prevention)
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Seismic isolation device (earthquake countermeasure)
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Seismic frame (earthquake measures)
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Free Access Floor (Earthquake Measures)
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OA equipment, fixtures (earthquake measures)
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Monitoring and Management Backup (Network)
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Security
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Shelter
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Fiber optic network
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Trap-type fence sensor
Featured products
Products/Services(64items)
news list
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Notice of participation in the Crisis Management Industry Exhibition "RISCON TOKYO 2025" from Wednesday, October 1 to Friday, October 3, 2025.
Showden Co., Ltd. will be exhibiting at the Crisis Management Industry Exhibition "RISCON TOKYO 2025" held at Tokyo Big Sight. This exhibition is one of the largest comprehensive exhibitions in Japan focused on products, technologies, and services related to crisis management. This time, we will have sections dedicated to "Lightning Damage Countermeasures," "Earthquake Countermeasures," "Water Countermeasures," and "Network & Security," where we plan to showcase our products and services. Additionally, we will introduce solutions and presentations themed around "Visible Disaster Prevention" and "Connected Safety," centered on Genetec's Security Center. We invite you to visit us and see our advanced products and services.
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Announcement of the Renewal and Reopening of the Tech Center "Test Lab"
Showa Denko K.K. will open a demonstration and experiential lab environment called "Test Lab," equipped with one of the world's leading lightning test devices, within the Techno Center (Inage Ward, Chiba City) on August 6, 2025. The Test Lab is equipped with facilities such as a "lightning impulse current generator" capable of generating a current of 200 kA 10/350 μs, a "1200 kV (1.2 million V) lightning impulse voltage generator," and a "short-circuit current testing device," allowing for performance evaluations and verification experiments based on analysis of various products, including lightning protection products and power supply devices. Additionally, the Test Lab has renovated its control room observation area so that visitors can actually see the experiments and tests being conducted, providing a facility where they can experience the dynamic atmosphere of the testing process.
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About the initiatives for the 60th anniversary of Showden Co., Ltd.
Showden will celebrate its 60th anniversary in October 2024. Since its founding, we have upheld the slogan "Providing safety and trust in an information society," supporting mission-critical social and communication infrastructure against various risks. In an era where things and events are digitally optimized (DX), safeguarding the increasingly important infrastructure networks is connected to protecting people's lives and society. At Showden, we continue to pursue the form of safety necessary for a transforming society, contributing to valuable experiences (CX) and the realization of a sustainable society (GX&SX) for everyone.
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Top interview article with our company president Ota published in 'Nikkan Kogyo Shimbun', 'Nikkan Kensetsu Tsushin Shimbun', and 'Denki Shimbun'.
As part of the 60th anniversary commemorative project of Showa Electric, a top interview article with our company president, Ota, was published on October 1, 2024, in the "Nikkankogyo Shimbun," "Nikkankensetsu Tsushin Shimbun," and "Denki Shimbun." Detailed articles are available on the members-only site. Please log in to the members-only site (or register as a new member) to access them.
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Announcement of the launch of the lightning risk monitoring system "LiRiMoS".
Showa Denko has developed a new service for lightning damage prevention in collaboration with Halex Corporation, called the Lightning Risk Monitoring System 'LiRiMoS'. The service has now been launched. It provides information on lightning occurrences and forecasts, automatically collecting, processing, and editing big data analyzed by the Japan Meteorological Agency, and offering it through a UI/UX that takes into account the characteristics of the information. By visualizing lightning risk, it can help customers reduce lightning damage and mitigate disaster in their businesses.

About昭電
Consulting on measures against lightning damage, earthquake measures, fire prevention, crime prevention, disaster prevention measures, and the construction, operation, and maintenance of information and communication networks.
As technological innovation rapidly advances in the information and communication systems that support a highly information-oriented society, the reliability and safety of these systems have become increasingly important issues for society as a whole. In response to these needs, Showden Co., Ltd. has, since its founding, valued trust and prioritized reliability as its management philosophy, contributing to society through technology, from hardware manufacturing to system construction, operation, and maintenance. Now, as the possibilities of information and communication continue to expand infinitely, we will support the information-oriented society with the collective strength of all our employees.