Toshiba has filed suit against Hynix Semiconductor in Japan and the United States for infringement of Toshiba's semiconductor memory patents. In Japan, Toshiba filed suit against Hynix Semiconductor Japan for infringement of three NAND-related flash memory patents, and is seeking damages and an injunction against infringing products. In the U.S., Toshiba filed suit against Hynix Semiconductor and its U.S. subsidiaries for infringement of seven Toshiba patents, three related to DRAM and four to NAND, and an injunction against infringing products. Toshiba and Hynix entered into a patent cross-licensing agreement in Aug. 1996 that included semiconductor products. The companies started negotiation of an extension of the agreement prior to its Dec. 31 2002 expiration, in which Toshiba sought to secure a reasonable fee for access to its patents. Toshiba claims that failure to reach a satisfactory conclusion left it with no alternative other than to pursue legal recourse.