Japan's digital minister is working to rescue the country from its analogue rut.

The elected official tasked with accelerating Japan's transition to the digital age has a formidable challenge.

Even while Japan is famous for its abundance of high-tech products like Nintendo games and Lexus sports cars, the country is still fond of the fax machine and traditional hanko seals, which are used as analog signatures.

But Digital Minister Taro Kono is known for taking swift action and challenging powerful i....