TDK Corp. engages in the manufacture, distribution, and sale of electronic components. It operates through the following business segments: Passive Components, Sensor Application Products, Magnetic Application Products, Energy Application Products Products and Others. The Passive Components segment offers ceramic capacitors, aluminum electrolytic capacitors, film capacitors, inductive devices, high-frequency components, piezoelectric material components, circuit protection devices, and sensors. The Sensor Application Products segment includes temperature and pressure, magnetic, and MEMS sensors. The Magnetic Application Products segment provides Hard Disk Drives (HDD) head, HDD use suspension, power supplies and magnet. The Film Application Products segment offers energy solutions for mobile devices and industrial equipment. The Others segment covers mechatronics manufacturing equipment. The company was founded by Kenzo Saito on December 7, 1935 and is headquartered in Tokyo, Japan.