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, Textiles and Products, Information Technology (IT) 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. The Textiles and Products segment manufactures and sells polyester fibers and textile products, etc. The Information Technology segment engages in the operation, development, and maintenance of information systems and electronic comic distribution services. The Others segment includes battery components, implantable medical devices, etc. The company was founded by Seita