According to an article at Reuters.com, Toshiba has filed a complaint with the U.S. International Trade Commission (ITC), claiming that Daewoo Electronics and 16 other companies violated patents related to DVD recorders and players.
Japanese electronics conglomerate Toshiba Corp. (6502.T: Quote, Profile, Research) has filed a complaint against a unit of South Korea's Daewoo Electronics and 16 other companies for allegedly violating its patents related to DVD recorders and players.

Toshiba Corp. and Toshiba America Consumer Products LLC filed the complaint with the U.S. International Trade Commission (ITC) on Friday, according to a document on the ITC's Web site.
No word on what patents were violated.However, Toshiba has reportedly asked the ITC to investigate Daewoo Electronics America Inc. and the other 16 companies. If you'd like to read more, the entire article can be found here.