Kitajima edged American rival Brendan Hansen by 17 hundredths of a second in a nailbiting final.

CNN: Thai gold as Asian athletes excel

On Sunday, national hero Kosuke Kitajima will look to defend his gold medal in the 100-meter breast stroke.

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Kitajima has won the 100- and 200-meter breast-stroke races at the past two Olympics, and remains best in the world.

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Initially the company struggled, because it was targeting "everybody, " said Shiro Kitajima, the head of Panasonic's consumer marketing in North America.

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From the improving Japanese team, Kosuke Kitajima will try to repeat his double-gold performance in Beijing in the 100- and 200-meter breaststroke.

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Japan meanwhile were celebrating after landing their first Olympic swimming title for 12 years when double world champion Kosuke Kitajima won the men's 100m breaststroke.

CNN: Thai gold as Asian athletes excel

Hansen could push Kitajima, but it's doubtful he can beat him.

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