TDK is a well-known brand in the electronics industry, and has been a leader in electronic raw materials and components. Founders of TDK, Drs. Yutaka Kato and Takeshi Takei, after inventing ferrite in Tokyo, established Tokyo Denkikagaku KogyoK.K. in 1935, which was formerly known as the Department of Electrochemistry at Tokyo Institute of Technology, where Dr. Kato and Dr. Takei taught. KogyoK.K., the name of the former Tokyo Institute of Technology\'s Department of Electrochemistry, where Dr. Yutaka Kato and Dr. Takeshi Takei lectured in the Department of Electrochemistry, and in 1983 the name was officially changed to the present-day TDK Corporation, taking the initials of the original name of Tokyo Denki KogyoK.K., and the company began to engage in the commercial development and operation of this magnetic material.
