Timeline
- 1995 - Bought COMDEX from The Interface Group
- 1999 - Allowed organizers of COMDEX to restrict admission of media, creating a spiraling effect
- 2001 - Sold COMDEX to Key3Media, a spin-off of Ziff Davis
- January 28, 2005 - SoftBank becomes the owner of the Fukuoka SoftBank Hawks, a Nippon Professional Baseball team.
- March 17, 2006 - SoftBank announces its agreement to buy Vodafone Japan, giving it a stake in Japan's $78 billion mobile market.
- Early April, 2006 - SoftBank completed the purchase of 23% of Betfair, an Internet betting exchange.
- October 1, 2006 - Vodafone Japan changes its corporate name, mobile phone brand name, and its mobile phone domain name to SoftBank Mobile, SoftBank, and respectively.
- January 28, 2008 - It was announced that SoftBank and Tiffany & Co. collaborated in making a limited 10 model-only cellphone. This cellphone contains more than 400 platinum diamond, totalling more than 20 carat. The cost is said to be more than 100,000,000 yen.
- June 4, 2008 - SoftBank Mobile announced partnership with Apple and brought the iPhone (3G) to Japan later in 2008
- February 3, 2010 - SoftBank acquired 13.7% in Ustream with the option to increase shares to 30% by July 2011.
- October 1, 2010 - Ayumi Hamasaki becomes the commercial spokesperson.
- October 3, 2012 - Masayoshi Son announced the take over of its competitor eAccess
- October 15, 2012 - SoftBank announced plans to take over Sprint Nextel by purchasing a 70% stake for $20 billion.
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