Korean construction machinery manufacturer Doosan Infracore said that its subsidiary Doosan Bobcat has decided to offer 1,354 new shares worth 617.2 billion won ($535 million) to affiliate Doosan Engine.The proceeds from share issuances will be used to improve Bobcat’s finances, Doosan Infracore said in a public disclosure.Doosan Bobcat, a construction equipment maker, is wholly owned subsidiary of Doosan Infracore. Doosan Heavy Industries & Construction, an infrastructure giant, is the biggest