The Register reports Toshiba has taken its patent violation claim against Hynix to the US International Trade Commission, to ask a block on the import of the allegedly patent infringing NAND memory flash chips from Hynix.
This type of Hynix memory is used in some of Apple's new iPod nano players and also in some digital audio players from other manufacturers.
The complaint, noted in an Associated Press report, follows legal action brought by Toshiba against Hynix almost a year ago in the Japanese and US courts.
A lawsuit filed with the Tokyo District Court alleges Hynix wilfully infringed three of Toshiba's NAND Flash patents. The Japanese company wants the court to force Hynix to cough up damages for the transgression. A second suit, filed in the US District Court for Northern Texas, alleges infringement of four NAND patents and three others relating to DRAM.