
In 1967, the company was acquired by Kawai Musical Instruments Manufacturing Co. In 1956, the company name was changed to Nippon Onpa Kogyo Co., and changed to Teisco Co. The company was originally called Aoi Onpa Kenkyujo (roughly: Hollyhock Soundwave or Electricity Laboratories).

The company was founded in 1946 by renowned Hawaiian and Spanish guitarist Atsuwo Kaneko and electrical engineer Doryu Matsuda.

However, the exact name of company establishing and producing the Teisco brand was not that name, and rather, they had frequently renamed their company. The brand name "Teisco" was established in 1948, and sometimes incorrectly explained as an acronym of Tokyo Electric Instrument and Sound Company.

Teisco Del Rey brand logo, re-badged in the US after 1964.
