Teijin Ltd. engages in the management of its group companies that are involved in the environment and energy, safety and protection, information and electronics, transportation, and healthcare businesses. It operates through the following segments: Materials, Healthcare, and Others. The Materials segment handles the manufacture and sale of polyester, aramid, and carbon fiber products as well as plastic and resin products from polycarbonate resin and polyester film. The Healthcare segment deals with the manufacture and sale of pharmaceuticals and home medical equipment. It also provides home healthcare services. The Others segment offers information technology services. The company was founded by Seita Kumura on June 17, 1918 and is headquartered in Osaka, Japan.