Toshiba Corp. has filed a complaint with the U.S. International Trade Commission and sued 17 companies, alleging infringement of its DVD patents, the Japanese electronics maker said Monday. The commission is an independent federal agency that checks on unfair trade practices and copyright infringements. Toshiba filed a complaint Friday to the commission against the 17 companies, mostly Hong Kong and Chinese manufacturers and importers, the Associated Press reported. Also Friday, Toshiba filed a lawsuit demanding monetary damages to the same companies in the U.S. District Court for the Northern District of California. Toshiba spokeswoman Yuko Sugahara declined to comment on the damage amount.