Hynix Infringed Four Rambus Patents, Court Rules

Shares of Rambus Inc. climbed 13.4 percent in trading after the company received a positive ruling in its patent-infringement lawsuit against South Korea memory chip maker Hynix Semiconductor Inc. In a press release, Rambus, which makes technology that speeds up memory chips, said a federal judge in California issued a summary judgment which ruled Hynix infringed on four of Rambus' patents.