CDRLabs.com

According to Reuters, Taiyo Yuden has filed lawsuits against Prodisc and Ritek, claiming that the two companies infringed upon three patents related to the manufacturing of DVD-R discs and had refused to pay patent fees.

Japan's Taiyo Yuden Co Ltd said on Monday it has filed a patent suit in the United States against two Taiwanese makers of DVD discs for violation of manufacturing technology for DVD-R discs.

Taiyo Yuden, an electronic parts maker, filed a suit at a California district court against Prodisc Technology Inc on Oct. 30 and Ritek Corp on Nov. 21, Taiyo Yuden spokeswoman Rieko Kimoto said.

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