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This article is about the Japanese electronics company. For other meanings of TDK, see TDK (disambiguation).
TDK Corporation
Public KK
Traded as TYO: 6762
Industry Electronics
Founded December 7, 1935
Headquarters Nihonbashi, Chūō, Tokyo, Japan
Area served
Key people
Takehiro Kamigama (President)
Products CD, DVD, Blu-ray, Electrical components, Power supplies
Revenue Increase ¥875.73 billion
US$10.55 billion
Increase ¥63.842 billion
US$769.18 million
Increase ¥45.26 billion
US$545.34 million
Total assets Decrease ¥1,060.85 billion
US$12.78 billion
Total equity Decrease ¥539.76 billion
US$6.50 billion
Number of employees

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".[2]

TDK is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 and TOPIX indices.


"TDK" is an initialism of the original Japanese name of the company: Tokyo Denkikagaku Kōgyō (Tokyo Electronics and Chemicals).


A TDK SA-90 compact cassette

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.[3] In 1952 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 it licensed the rights to do so to Imation. Imation also now manufactures USB flash drives under this license.

Operations in the USA began in 1965 with a New York City office,[4] and European operations began in 1970 with an office in Frankfurt, West Germany.[5]

In the 1990s TDK's Mass Storage Division included brushless DC spindle motors, magnetoresistance (MR) heads, and thin-film heads.

Since 1997 TDK has gradually withdrawn from the production of compact cassettes. First with the MA-X and AR ("Anti-Resonance"), then the AD ("Acoustic Dynamic") and SA-X line in 2001 and 2002 respectively, then the MA ("Metal Alloy") line in 2004. The SA ("Super Avilyn") and D ("Dynamic") lines were withdrawn in 2012 under Imation ownership. Industry trends see the company moving into new forms of media; in 2004 TDK was the first media-manufacturer to join the companies developing BD post-DVD technology.[4] TDK operated a semiconductor division in California for about a decade, but divested it in 2005.

Since June 2006, Takehiro Kamigama has been president, having been nominated by his predecessor, Hajime Sawabe, who currently serves as chairman.

In late 2007, Imation acquired TDK's recording business, including flash media, optical media, magnetic tape, and accessories, for $300 million.[6][7]

Sponsorship and advertising[edit]

The TDK sign at Piccadilly Circus in London.

TDK sponsored Dutch giant Ajax for several years in 1980s during which it won the European Cupwinners Cup in 1987. From 1993 to 1998, TDK were also the sponsors of the English football club Crystal Palace, who were promoted to the Premier League twice during this era, though lasting for just one season before being relegated on both occasions. TDK was also a minor sponsor of the Brisbane Broncos Rugby League Team during the early 90's. It is a current sponsor of the IAAF World Championships in Athletics. It also sponsors activities and events such as those at The Cross nightclub in Central London, and since 1990 has had a prominent sign at Piccadilly Circus although it was announced in November 2014 that they would not be renewing the contract.[8] TDK also owned a sign on One Times Square since 2000. The screen is placed under that of Toshiba and can be seen during the annual Times Square New Year's Ball Drop.

In 2002, the company's consumer electronics division was the presenting sponsor of the Third Annual Jammy Awards, with the TDK Live Performance of the Year award honoring the best live performance that was legally available on the Web as a free download. The award was given to the band moe. for their performance at the Bonnaroo Music Festival.

TDK's own football club, based in Nikaho, Akita, recently split from the corporation to become independent football club Blaublitz Akita, with aim for the professional leagues.


TDK operates a company museum at its Hirasawa plant in Japan.

See also[edit]


External links[edit]