Microsoft has announced a four-year, US$10 billion (S$12.9 billion) investment package in Japan, part of the US company’s Asia-wide push to expand in a region hungry for artificial intelligence services. The world’s largest software maker said it will develop cloud and artificial intelligence infrastructure alongside Sakura Internet and telecom operator SoftBank, with the two Japanese entities supplying graphics processing units and other computing resources. Sakura Internet’s stock jumped 20 per cent on the news April 3, its biggest intraday gain since September. Shares of SoftBank, the telecommunications arm of investment group SoftBank Group, rose 0.5 per cent.As part of the package,…