TEAC Corporation (ティアック) is an electronics company based in Japan. They have a professional recording division called TASCAM. TEAC was founded in 1956 as the Tokyo Electro Acoustic Company.
Teac is known for its audio equipment, and was a primary manufacturer of high-end audio equipment in the 1980's. During that time, Teac produced notable tape decks, cd players, turntables and amplifiers.
Of particular note is that Teac produced an audio cassette that resembled a reel-to-reel tape in its appearance. Many manufactures of the time used these Teac cassettes in advertisements of their tape decks because the Teac cassettes looked more professional than standard audio cassettes, and because reel-to-reel tape recordings were known to be of higher quality than cassette recordings.
Teac still produces audio equipment, and has a well respected high end division, called "Esoteric."