Sanritsu was originally
known as Japan Transformers Works Co. Ltd founded in
1939. In 1945 the
company changed its name to Sanritsu Electric Co. Ltd.
October 1955 Sanritsu started working on the development
of transistor radios. In December 1964 Sanritsu achieved
exports of one million transistor radios, with probably
the majority of those being the commonly found ST-600.
In 1989 the company changed its
name to Sanritz Corporation. Today Sanritz is involved
in the research and development of plastic polarizers
for use in LCD panels and sunglasses.