The Bioscience Division of Tosoh Corporation is headquartered in Tokyo, Japan. The Bioscience Division champions the research, manufacture, sales, and marketing activities for all separation products for chromatographic analysis and purification, as well as for instruments and reagents for clinical diagnostics.

The Nanyo Complex, where TSK-GEL and ToyoScreen columns as well as Toyopearl and TSK-GEL media are produced, is located in the city of Shu-nan in the Yamaguchi prefecture at the southwestern tip of the mainland of Japan. Research and Development activities for separation products are also housed in the Nanyo Complex. An extensive application development program is conducted at the Tokyo Research Center located in the suburbs of Tokyo.

Instruments and reagents for clinical diagnostics are sold through two sister companies:

• Tosoh Bioscience, Inc., located in South San Francisco
• Tosoh Bioscience, N.V. located in Belgium.

Use the above links for contact information for these Tosoh Bioscience companies.

Sales and support offices to promote the Tosoh Bioscience separation products are located in the following countries.