Established in 1989, Tosoh America works to expand various business lines and operational capabilities in North America for Tosoh Corporation, which was founded in 1935 and is a multinational corporation that is comprised of more than 11,000 people in more than 140 affiliates in Europe, Japan, Asia and North America. Tosoh America handles and integrates the corporate activities of various subsidiaries in the United States. Through its subsidiary, Tosoh Bioscience, Tosoh Corporation offers a range of diagnostic systems to doctors offices, hospitals and reference laboratories. Tosoh Corporation deals in petrochemicals, specialty products, and inorganic and fine chemicals. Additionally, its clinical diagnosis product line includes scientific instrumentation, thin film materials and quartzware.