The back-and-forth in the patent-infringement lawsuit that Toshiba America Business Solutions and Toshiba Tec Corporation (collectively Toshiba) filed against Katun Corporation continues. The latest developments are that Katun has amended its answer and counterclaims against Toshiba, while Toshiba has answered the counterclaims raised by Katun. The two parties also filed their Joint Rule 26(f) report,