SoftBank Corp. (ソフトバンク株式会社, Sofutobanku Kabushiki-gaisha?) is a Japanese telecommunications and media corporation, with operations in broadband, fixed-line telecommunications, e-Commerce, Internet, broadmedia, technology services, finance, media and marketing, and other businesses.
SoftBank was established in Tokyo, Japan on September 3, 1981, and had a market capitalization of approximately US$32.8 billion at 28 February 2006. The SoftBank logo recalls the Meiji period Kaientai.
SoftBank's corporate profile includes various other companies such as Japanese broadband company Cable & Wireless IDC, cable company BB-Serve, and gaming company GungHo Online Entertainment. Additionally, it has various partnerships in Japanese subsidiaries of foreign companies such as Yahoo!, E-Trade and Morningstar. SBI Group is a Japanese financial services company that began in 1999 as a branch of SoftBank.
SoftBank is currently the only official carrier of the iPhone for Japan.
Source: Wikipedia, "Soft Bank", available under the CC-BY-SA License.