In the suit, Toshiba accused Hynix of violating its patents for NAND-based flash memory products. Toshiba called for an injunction against imports of infringing products, according to the report.

Korean chip maker Hynix recently disclosed an aggressive product roadmap to mass produce NAND-based flash memory. Hynix is quietly readying its first 70-nm NAND-based flash devices, including an advanced 16-gigabit chip .

Last year, Toshiba filed a pair of suits against South Korea's Hynix in Japan and the United States over DRAM and flash-memory patents.

Toshiba and Hynix entered into a patent cross-licensing agreement in August 1996 that included semiconductor products. The companies started negotiation of an extension of the agreement prior to its December 31, 2002 expiration. At the time, Toshiba sought to secure a reasonable fee for access to its patents.

Failure to reach a satisfactory conclusion left Toshiba with no alternative other than to pursue legal recourse.

So, in Japan, Toshiba filed a suit against Hynix for alleged infringement of its NAND flash memory patents. Toshiba's suit in Tokyo seeks damages against Hynix's alleged infringement of three NAND-related patents. It seeks an injunction against infringing products.

In the U.S., Toshiba filed a similar suit against Hynix and its U.S. subsidiaries for infringement of Toshiba's DRAM and NAND flash memory patents .

By: DocMemory
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