SoftBank Corp. (ソフトバンク株式会社, Sofutobanku Kabushikigaisha), previously as SoftBank Mobile Corp.[1], Vodafone K.K. (also known as Vodafone Japan) and J-PHONE is the telecommunications subsidiary of SoftBank Group, including mobile and fixed-line services.Masayoshi Son is chairman and Ken Miyauchi is President and CEO.[2]