Casual clothing group Fast Retailing Co has lost its position as top earner among Japanese companies that closed their books in August.

According to Teikoku Data Bank Ltd, Fast Retailing was knocked from the top spot in 2003 for the first time in four years, with its successor being a seller of 'pachinko' pinball machines.

Nagoya-based Sanyo Hanbai saw its full-year income shoot up 212.3 per cent year-on-year to Y39,509.56 million, while Fast Retailing's 2003 income dropped 10.4 per cent year-on-year to Y38,906.5 million on the back of slumping same-store sales.

Fast Retailing operates the Uniqlo casual apparel chain.