RIKEN ENVIRONMENTAL SYSTEM Co., Ltd. was established in August 2006, integrating the EMC-related and thermal engineering businesses of the Riken Group.

Furthermore, our parent company, Riken Corporation, established NPR-RIKEN CORPORATION in October 2023 through a business integration with Nippon Piston Ring Co., Ltd.

In addition, in April 2026, with the transition of NPR-RIKEN CORPORATION to a business holding company, our company was renamed NPR-RIKEN ENVIRONMENTAL SYSTEM CORPORATION and restarted as an EMC-related business company.

As a member of the NPR-RIKEN Group, we will continue to build upon the distinctive material technologies cultivated at Riken Corporation, striving to become a global top brand in "anechoic chamber and shielding technology" and to provide products and services that benefit society.

Takashi Ono, President and Representative Director

Based on the distinct materials technology, we will develop differentiated EMC-related businesses to provide products and services that delight our customers worldwide.