Who are 6 of Japan’s richest billionaires, and how do they make their fortunes?

The businessmen earn their fortunes from firms such as the Uniqlo clothing brand, 7-Eleven convenience stores and ABC-Mart discount shoe retailer
Have you ever wondered who Japan’s billionaires are and how they made their fortunes?
Well, one of them built his empire from a popular casual wear fashion brand, and another from convenience stores.
Here we’ve chosen six Japanese people who have made it onto the Bloomberg Billionaires Index.
Tadashi Yanai
Who: chairman of clothing retailer Fast Retailing, the parent company of Uniqlo
Estimated net worth: US$25.7 billion
Tadashi Yanai joined his father’s clothing store business after graduating from university and started the Japanese clothing company Unique Clothing Warehouse – later renamed Uniqlo – in 1984 when he was about 35, according to Bloomberg.
By 1991, Yanai, 69, had changed Ogori Shoti, the name of his father’s business, to Fast Retailing.
Today, Fast Retailing is one of the largest clothing retailers in Asia, with subsidiary businesses including Uniqlo, French fashion brand Comptoir des Cotonniers and the US clothing brand, J Brand.