Screen Shot 2012-02-08 at 5.10.02 PMJapanese mobile gaming giant DeNA bought mobile app developer Ngmoco last year for $400 million.

Since then, the company has acquired a range of other outfits and worked to tie the San Francisco startup in with everything else it does In general, things seem to be going wellThe conglomerate just posted a strong third quarter, with net sales up 16%, which in turn boosted the stock price by more than 8% for a valuation of $4.8 billion.

However, net income declined versus the same period the previous year, from $106 million to $79.2 million.