TDK

TDK Corporation

Type	Public KK
Traded as	:
Industry	Electronics
Founded	December 7, 1935
Headquarters	Nihonbashi, Chūō, Tokyo, Japan
Area served	Worldwide
Key people	Takehiro Kamigama (President)
Products	CD, DVD, Blu-ray, Electrical components, Power supplies
Revenue	¥875.73 billion US$10.55 billion (2011)
Operating income	¥63.842 billion US$769.18 million (2011)
Net income	¥45.26 billion US$545.34 million (2011)
Total assets	¥1,060.85 billion US$12.78 billion (2011)
Total equity	¥539.76 billion US$6.50 billion (2011)
Number of employees	87,809
Website	www.global.tdk.com

TDK Corporation (TDK株式会社, TDK Kabushiki-gaisha^?), formerly TDK Electronics Co., Ltd (東京電気化学工業株式会社^?), is a Japanese multinational electronics company that manufactures electronic materials, electronic components, and recording and data-storage media. Its motto is "Contribute to culture and industry through creativity".

"TDK" is an initialism of the original Japanese name of the company: Tokyo Denkikagaku Kōgyō (Tokyo Electronics and Chemicals). The company is listed on the and is a constituent of the Nikkei 225 and TOPIX indices.

TDK was founded in Tokyo, Japan, on 7 December 1935 to manufacture the iron-based magnetic material ferrite, which had been recently invented by Yogoro Kato and Takeshi Takei. In 1952 and 1957 they began production of magnetic tapes, with compact cassette tapes following in 1966; it is for these that the company is most widely noted. TDK used to manufacture an extensive portfolio of magnetic and optical media, including several formats of videotape and blank CD-R and recordable DVD discs until the recording business was sold to Imation in 2007.

Operations in the USA began in 1965 with a New York City office, and European operations began in 1970 with an office in Frankfurt, West Germany.