Japanese electronics makers are waging battles in various digital home appliance sectors, aware that those who claim initial victories will likely remain dominant.

Manufacturers such as Sharp Corp. and Matsushita Electric Industrial Co. showed off their latest technologies earlier this month at Ceatec Japan 2004, one of the biggest digital consumer electronics exhibitions in Asia. The event was held in Chiba through Oct. 9.

Matsushita, which developed the Blu-ray disc standard for next-generation DVD players with Sony Corp. and other companies, has been engaged in an intense battle against a consortium led by Toshiba Corp. and NEC Corp. that has produced another format, dubbed HD DVD.