TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others.

TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company employs approximately 100,000 people around the world and has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2016 (ending in March) TDK posted sales of about USD 10.5 billion.

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