- The FDK Group aims to contribute to the realization of an affluent electronics society by manufacturing and supplying electronic devices and batteries that satisfy customers needs. In keeping with our customer centric approach, FDK supplies products to increase value and function of our customers products. Our material, circuit and high density technologies have been cultivated for a long time and use earth friendly products. We strive to be recognized around the world as one of the best supplier of key and cutting edge devices and to further the progress of these and emerging technologies while fostering environmental protection.