TDK Corp. engages in the manufacture, distribution, and sale of electronic components. It operates through the following business segments: Passive Components, Magnetic Application Products, Film Application 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 Magnetic Application Products segment provides Hard Disk Drives (HDD) head, HDD use suspension, power supplies and magnet. The Film Application Products include energy devices like rechargeable batteries, and applied films. The Others segment covers mechatronics manufacturing equipment. The company was founded on December 7, 1935 and is headquartered in Tokyo, Japan.