Sansha Electric Manufacturing Co., Ltd.

Sansha Electric Manufacturing Co., Ltd. is a Japanese company that develops and manufactures power supplies and power semiconductors. Its products include surface treatment power supplies, uninterruptible power supplies (UPS), power conditioners for solar, storage batteries, and fuel cells, test and evaluation power supplies, thyristor power regulators, power supplies for light source equipment, and industrial large-capacity power supplies. The company was founded in 1933 by Yukio Shikata and incorporated in 1948.

Sansha Electric Manufacturing Co., Ltd. was founded in 1933 by Yukio Shikata as a personally managed business, developing choking coils and auto transformers, the predecessors of power supplies for projectors. In 1937, it developed a tungar rectifier for projectors. In 1948, it was established as a corporation and developed selenium rectifiers for projectors. In 1956, it received the Japan Film Technology Award for contributions to film technology and developed a DC arc welding machine. In 1963, it developed thyristors for power semiconductors. In 1964, it developed inverter uninterruptible power supplies and electric furnace power regulators. In 1970, it developed rectifiers for plating. In 1971, it developed Japan's first isolated triac. In 1982, it completed the Shiga Plant in Moriyama City, Shiga Prefecture. In 1983, it established SANREX CORPORATION in New York, USA, and SANREX LIMITED in Hong Kong. In 1985, it completed the Okayama Plant in Nai-cho, Katsuta District, Okayama Prefecture. In 1994, it established Sansha Electric (Guangdong) Co., Ltd. in Guangdong Province, China. In 1997, its shares were listed on the Second Section of the Osaka Securities Exchange (now Tokyo Stock Exchange Standard Market). In 1999, it established SANREX ASIA PACIFIC PTE.LTD. in Singapore. In 2001, it established Sansha Electric (Shanghai) Co., Ltd. in Shanghai, China. In 2015, it developed SiC power modules in joint development with Panasonic Corporation. In 2016, it participated in a virtual power plant (VPP) demonstration project. In 2022, it began sales of 1200V SiC MOSFET discretes. In 2023, it received the Energy Conservation Center Chairman's Award in the 2023 Energy Conservation Awards.

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