The jury is still out on what Donald Trump's election victory means for close US ally Japan. But at least one local business has emerged a winner.

Ogawa Studios, the country's top rubber mask maker, has seen surging demand for their version of the billionaire real-estate magnate since his Nov 8 win.

"I am not sure if Mr Trump's election victory is a good thing for Japan, but for us, a rubber mask maker, the demand has increased many times since he won," said senior manager Takahiro Yagihara.