Another DRAM patent lawsuit has been filed, and not by Rambus. Instead, a Canadian company alleges IBM has breached a number of DRAM-related patents, which include 6,608,703, 7,038,937, 6,680,654, 6,69,448, and 7,486,580.
Each patent relates to elements of DRAM technology, and according to Mosaid, the company which filed the lawsuit, IBM breached every single one by making and selling DRAM mircroprocessor and ASIC products which allegedly use the inventions.
To date, Mosaid's portfolio contains more than 850 patents and a long list of licensees for its DRAM and embedded memory patents. Some of these licensees include Fujitsu, NEC, Toshiba, Hitachi, Mitsubishi, Oki, Panasonic, Winbond, Sony, Samsung, Hynix, TSMC, Infineon, ProMOS, Powerchip, and Micron.
Mosaid said it filed the lawsuit when talks with IBM broke down.