During the probe, several offices were raided to look for discriminating evidence, also including those of Philips and the cathode ray tube unit of Matsushita Electric Industrial Co. In May 2008, a related investigation carried out by Hungary"s competition authority GVH launched a cartel probe into cathode ray tube manufacturers on the European market, because of price fixing suspicion between 1995 and 2007. Companies under investigation in Hungary include Samsung C&T Corp., Philips, Chunghwa Pictures Tubes Ltd. and Daewoo International Corp. USD 37.4 million in fines were levied by Japanese antitrust regulators in October 2009against Panasonic Corp. of Japan, a branch of South Korea"s Samsung group and LG Philips Displays Korea Co. for fixing the prices of cathode ray tubes. The Japanese authorities said that five companies had been involved in the cartel.