"After having been invited to join the board last year I am delighted to be able to increase my shareholding in Arsenal, " he said.

CNN: American tycoon lifts stake in Arsenal

In 1998, Riddell was invited to meet the Queen at Buckingham Palace, having been identified as one of the nation's young achievers by the Independent Television Commission.

CNN: About

In 1954 he was invited to Japan to give a series of lectures which were subsequently credited by the Japanese with having been the basis of their quality-focused post-war industrial economy.

ECONOMIST: Guru