In 1964, Madoka Tashiro, who would go on to become a 53-year veteran of Tosoh, and Tosoh Corporation's chairman and CEO from 2001 to 2009, opened the company's first overseas office in New York.
That office was the start of a 40-year expansion by the company. By 1989 Tosoh had accumulated a good number of subsidiaries in North America, and it established Tosoh America, Inc. in that year to function as a holding company for several of those subsidiaries. Later in 2001, Tosoh America, Inc. itself was enlarged as a regional headquarters.
A brief history of our current subsidiaries follows
(links to our subsidiary company websites below open in a new tab/window).
| 1979 |
Tosoh USA, Inc. was established as a distributor of commodity chemicals manufactured by the Tosoh Group. The company is located in Grove City, Ohio. |
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| 1984 |
Nippon Silica Glass was acquired and later renamed Tosoh SGM USA, Inc. The company sells silica glass products and is located in New Jersey. |
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| 1987 |
Tosoh Bioscience LLC emerged from Tosoh's joint venture with Rohm & Haas which was named TosoHaas following Rohm & Haas's exit from the business. The company markets and sells bio-processing materials and equipment used in the pharmaceutical industry. The company is located in King of Prussia, Pennsylvania. |
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| 1988 |
Tosoh purchased the sputtering target business of Varian Corporation and renamed Tosoh SMD, Inc. The company produces thin film material used in the semiconductor and solar industries. The company is located in Grove City, Ohio. |
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| 1989 |
Tosoh Bioscience, Inc. was established to sell medical diagnostic instruments and reagents. The company is located in South San Francisco, California. |
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| 1992 |
Nippon Silica Glass Europe, Ltd was acquired and later renamed Tosoh Quartz Inc. - Durham. the company manufactured and sold quartz products, and in 2004 became a division of Tosoh Quartz, Inc. which is located in Oregon. |
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| 1993 |
Tosoh acquired Weiss Scientific and later renamed Tosoh Quartz, Inc. The company manufactures and sells quartz products. The company is located in Portland, Oregon. |
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| 1995 |
Tosoh SMD, Inc. founded Tosoh SMD Korea, Ltd. as a subsidiary in South Korea to manufacture and sell thin film materials in South Korea. |
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| 1997 |
Tosoh SMD, Inc. established Tosoh SMD Taiwan, Ltd. as a subsidiary in Taiwan to sell sputtering targets in that country. |
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| 2008 |
Tosoh Specialty Chemicals USA, Inc. was established to sell commodity chemicals manufactured by the Tosoh Group. The company is located in Alpharetta, Georgia. |
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| 2011 |
Tosoh SMD, Inc. established Tosoh SMD Shanghai Co., Ltd. as its third manufacturing facility. |
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| 2012 |
Tosoh SGM USA, Inc. merged with Tosoh USA, Inc. |