US group Eastman Kodak said it has filed a lawsuit against Sony, accusing the Japanese giant of infringing 10 of its patents on digital photo technology. The suit was filed in a federal court in Rochester, New York, where Kodak is based. Kodak is trying to stop Sony from using the technology as well as compensation. It said talks with the Japanese company had broken down. But Kodak spokesman Gerard Meuchner would not say how much the main US photography producer was demanding. The complaint covers patents registered between February 1987 and June 2003. They include techniques for previewing and storing images, printing and reproducing video images. The action targets Sony's parent company, Sony Corp (NYSE:SNE – news)oration of America, a distribution firm, and Sony Electronics Inc., a US subsidiary.