TDK

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. Since 1997 TDK has gradually withdrawn from the production of compact cassettes. First with the MA-X and AR ("Acoustic Response"), 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 The SA ("Super Avilyn") and D ("Dynamic") lines were withdrawn in 2012 under Imation ownership. In late 2007, Imation acquired TDK's recording business, including flash media, optical media, magnetic tape, and accessories, for $300 million. This also included a license to use the "TDK Life on Record" brand on data storage and audio products for 25 years. In September 2015, Imation announced that it had agreed to relinquish this license and would cease selling TDK-branded products by the end of the year.

Brand Manufacturer Model Description Type Length Year Made in Market
Compact Cassette: TDK  - CDing 2 70 TDK TDK CDing 2 CD2-70L Type II Chrome 70 2000 Japan Japan
Compact Cassette: TDK  - CDing 2 74 TDK TDK CDing 2 CD2-74L Type II Chrome 74 2000 Japan Japan
Compact Cassette: TDK  - CDing 2 80 TDK TDK CDing 2 CD2-80L Type II Chrome 80 2000 Japan Japan
Compact Cassette: TDK  - CDing 2 90 TDK TDK CDing 2 CD2-90L Type II Chrome 90 2000 Japan Japan
Compact Cassette: TDK  - CDing 2 120 TDK TDK CDing 2 CD2-120L Type II Chrome 120 2000 Japan Japan
Compact Cassette: TDK  - CDing 2 150 TDK TDK CDing 2 CD2-150L Type II Chrome 150 2000 Japan Japan
Compact Cassette: TDK  - D 46 TDK TDK D V Alinamin Type I Normal 46 2000 Japan Japan
Compact Cassette: TDK  - D 100 TDK TDK D D-90+10EB Type I Normal 100 2000 Thailand Worldwide
Compact Cassette: TDK  - DS2 60 TDK TDK DS2 DS2-60 Type II Chrome 60 2000 Japan Japan
Compact Cassette: TDK  - DS2 74 TDK TDK DS2 DS2-74 Type II Chrome 74 2000 Japan Japan
Compact Cassette: TDK  - DS2 90 TDK TDK DS2 DS2-90 Type II Chrome 90 2000 Japan Japan
Compact Cassette: TDK  - Na Na 46 TDK TDK Na Na NA2-46 Type II Chrome 46 2000 Japan Japan
Compact Cassette: TDK  - Na Na 54 TDK TDK Na Na NA2-54 Type II Chrome 54 2000 Japan Japan
Compact Cassette: TDK  - Na Na 60 TDK TDK Na Na NA2-60 Type II Chrome 60 2000 Japan Japan
Compact Cassette: TDK  - Na Na 74 TDK TDK Na Na NA2-74 Type II Chrome 74 2000 Japan Japan
Compact Cassette: TDK  - Na Na 90 TDK TDK Na Na NA2-90 Type II Chrome 90 2000 Japan Japan
Compact Cassette: TDK  - Na Na 120 TDK TDK Na Na NA2-120 Type II Chrome 120 2000 Japan Japan
Compact Cassette: TDK  - Roku 80 TDK TDK Roku RK-80X3 Type I Normal 80 2000 Japan Japan
Compact Cassette: TDK  - Roku 90 TDK TDK Roku RK-90X3 Type I Normal 90 2000 Japan Japan
Compact Cassette: TDK  - Roku 120 TDK TDK Roku RK-120X3 Type I Normal 120 2000 Japan Japan