How it started
Founding and early years
SoftBank was founded on 3 September 1981 as SOFTBANK Corp by then-24-year-old Masayoshi Son, initially as a software distributor. The company entered the publishing business in May 1982 with the launches of the Oh! PC and Oh! MZ magazines, about NEC and Sharp computers respectively. Oh!PC had a circulation of 140,000 copies by 1989. It would go on to become Japan's largest publisher of computer and technology magazines and trade shows.
In 1994, the company went public, valued at $3 billion. In September 1995, SoftBank agreed to purchase US-based Ziff Davis publishing for $2.1 billion.
1995–2009 expansion
In the 1990s, Son made large investments in Internet services and the so-called new economy in general. SoftBank bought COMDEX from The Interface Group on 1 April 1995 for $800 million and ZDI on 29 February 1996. SoftBank sold COMDEX to Key3Media, a spin-off of Ziff Davis, in 2001. In 1996, SoftBank formed a joint venture with American internet company Yahoo!, creating Yahoo! Japan (now LY Corporation), which would become a dominant site in the country.
In another highly publicized investment, SoftBank bought 80% of memory manufacturer Kingston Technology in 1996. When the owners-founders (John Tu and David Sun) announced plans to distribute $100,000,000 of the $1.5B windfall to Kingston employees, it created a very high-profile media stir that lasted well through the 1996 Christmas season; it was on all US networks, as well as international media. A few years later, in 1999, after the market for memory softened substantially, SoftBank sold the company back at a loss to the original owners for about a third of the original price.
From Wikipedia’s article on ITmedia, shared under CC BY-SA 4.0.2