It started as a joint venture among three Japanese electronics manufacturers NEC, Casio and Hitachi, where NEC owned 70.74%, Casio 20.00% and Hitachi 9.26%.

[1] At one point, the company was the second largest maker of mobile terminals in Japan.

The company was formed as NEC Casio Mobile Communications as a result of a merger between the mobile handset division of NEC and the former joint venture between Casio and Hitachi, Casio Hitachi Mobile Communications, established 1 April 2004.

[3] After seeing declining shares in domestic market, NEC Casio announced its withdrawal from smartphone manufacturing business in July 2013.

[5] The company renamed to NEC Mobile Communications in October 2014.