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History

In August 1937 The Toho Industrial Research Laboratory was established and commenced research and trial manufacture of selenium rectifiers . The laboratory was dissolved at the end of the World War 2 and the late Tetsuji Kotani, who was the chief of the semiconductor laboratory at the time, inherited the engineers and facilities, and established Toho Sanken Electric Co., Ltd. In June 1962 the name was changed to Sanken Electric Co., Ltd..

Company History

1946 - Established Toho Sanken Electric Co., Ltd. at Shikimachi (present Shikishi), Saitamaken
1952 - Transferred the Headquarters and plant to Owadamachi (present Niizashi), Saitamaken
1954 - Opened Tokyo Office in Toshimaku, Tokyo
1961 - Listed in the Second Section of the Tokyo Stock Exchange
1962 - Changed its company name to Sanken Electric Co., Ltd.
1963 - Opened its Osaka Branch in Osakashi, Osaka
- Completed Kawagoe Plant in Kawagoeshi, Saitamaken
1968 - Established SankenAirpax Co., Ltd., a joint venture company with Airpax Corporation of the U.S.A.
1969 - Listed in the Second Section of the Osaka Stock Exchange
1970 - Established Kashima Sanken Co., Ltd.
- Completed Niiza Plant in Niizashi, Saitamaken
- Listed in the First Sections of the Tokyo and Osaka Stock Exchanges
1973 - Opened Kyusyu Sales Office in Fukuokashi, Fukuokaken
- Established Korea Sanken Co., Ltd. in Korea
1974 - Established Sanken Densetsu Co., Ltd.
1977 - Opened Hiroshima Sales Office in Hiroshimashi, Hiroshimaken
1978 - Established Ishikawa Sanken Co., Ltd. by merging five affiliates in Ishikawaken
1979 - Opened Sendai Sales Office in Sendaishi, Miyagiken
1981 - Established Yamagata Sanken Co., Ltd.
1982 - Established Sanken Kosan Co., Ltd.
1984 - Issued Swiss francs convertible bonds (50 million Swiss francs)
1985 - Issued Swiss francs notes with warrants (50 million Swiss francs)
1986 - Opened Nagoya Sales Office in Nagoyashi, Aichiken
- Issued Swiss francs notes with warrants (80 million Swiss francs)
1988 - Issued US dollars bonds with warrants (US$100 million)
- Established Fukushima Sanken Co., Ltd.
- Opend Kanazawa Sales Office in Kanagawashi, Ishikawaken
- Established Sanken Electric Hong Kong Co., Ltd. in Hong Kong
1989 - Issued US dollars bonds with warrants (US$150 million)
- Opened Sapporo Sales Office in Sapporoshi, Hokkaido
- Established Gooding Sanken Limited in the UK (present Sanken Power Systems (UK) Limited)
1990 - Established Sanken Electric Singapore Pte. Ltd. in Singapore
- Established Allegro MicroSystems, Inc. in the U.S.A.
1991 - Issued Swiss francs notes with warrants (100 million Swiss francs)
1992 - Invested in Shimoda Electric Co., Ltd. (present Sanken Transformer Co., Ltd.), and made it an affiliate company
1994 - Opened Seoul Engineering Center in the Seoul Sales Office (present)
1995 - Issued Swiss franc notes with warrants (130 million Swiss francs)
- Issued the first unsecured convertible bonds (10 billion yen)
1997 - Established Sanken TechnoResearch Co., Ltd.
- Invested in Sanken L.D. Co., Ltd. and made it an affiliate company
- Established P.T. Sanken Indonesia in Indonesia
1998 - Opened Takamatsu Sales Office in Takamatsushi, Kagawaken
- Issued the first unsecured bonds (10 billion yen
1999 - Established Sanken Logistics Co., Ltd.
- Issued the second unsecured bonds (10 billion yen)
2000 - Established Sanken Electric Korea Co., Ltd.in Korea
2001 - Established Taiwan Sanken Electric Co., Ltd.in Taiwan
2003 - Corporate Officer system introduced
- Sanken Electric (Shanghai) Co., Ltd. Established in Shanghais
- Investment in Sanken L.D. Electric (Jiangyin) Co., Ltd. To make it an affiliate company
2004 - Taiwan Technology Center opened in Taiwan Sanken Electric Co., Ltd.
2005 - Sanken Business Service Co., Ltd. (formerly Sanken Kosan, Co., Ltd.) and two other affiliates merged into a single entity
- Polar Semiconductor, Inc. established in U.S.A.
- Sanken Optoproducts Co., Ltd. established
2007 - Sanken Logistics Co., Ltd. established after Sanken Business Service Co., Ltd. separated its logistics business.
2009 - henzhen Office of Sanken Electric (Shanghai) Co., Ltd. opened in Shenzhen, China
2010 - Investment in Dalian Sanken Electric Co., Ltd. to make it an affiliate company
- Investment in Sanken Electric (Malaysia) Sdn. Bhd. to make it an affiliate company
2013 - Established Sanken North America, Inc. (controlling company in North America region).
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