In the end, Sony Corp.'s alliance in the medical equipment business with scandal-tainted Olympus Corp. will help the loss-making electronics giant, it's just a matter of giving it enough time, analysts say.

The two companies will set up a joint venture by yearend to develop endoscopes, focusing on a type used in keyhole surgery, they said in a statement. Sony will hold 51 percent of that venture and Olympus 49 percent.

Sony will also invest ¥50 billion in Olympus, making it its single biggest shareholder, with slightly more than 11 percent of its outstanding shares.