http://blog.goo.ne.jp/piselepce/e/1b32394951bb93a38cd1d854f060c79fEricsson in Japan began operations in 1985 ahead of national deregulation of the telecommunication industry. In 1989, Ericsson Japan entered its first memorandum of understanding together with leading mobile operator NTT DoCoMo. Soon after, landmark network contracts with Digital Phone and Digital TUKA groups (today part of the SoftBank Group) graduated Japan as one of Ericsson’s top five markets.
http://blog.goo.ne.jp/piselepce/e/1b32394951bb93a38cd1d854f060c79f
