NEW YORK- Ricoh Co. Ltd. on April 19 sued bankrupt Eastman Kodak Co. in the U.S. Bankruptcy Court for the Southern District of New York, seeking declaratory and injunctive relief for alleged post-petition patent infringement (Ricoh Company Ltd. v. Eastman Kodak Company $(In Re: Eastman Kodak Company$), No. 12-10202, Adv. No. 13-01332, Chapter 11, S.D. N.Y. Bkcy.).