TDK Corp. engages in the manufacture, distribution, and sale of electronic components. The company is headquartered in Chuo-Ku, Tokyo-To and currently employs 101,453 full-time employees. The firm operates through four business segments. The Passive Components segment is engaged in the provision of ceramic capacitors, aluminum electrolytic capacitors, film capacitors, inductive devices, high frequency components, piezoelectric material components and circuit protection components. The Sensor Application Products segment is engaged in the provision of temperature and pressure sensors, magnetic sensors and micro electromechanical system (MEMS) sensors. The Magnetic Application Products segment is engaged in the provision of hard disk drive (HDD) heads, HDD suspensions and magnets. The Energy Application Products segment is engaged in the provision of energy devices and power supplies. The firm is also involved in the provision of mechatronics and micro actuators products.