On December 5, 2011 Walker Digital LLC filed a complaint requesting that the International Trade Commission open an investigation into the importation, sale for importation, and sale after importation of Certain Blu-Ray Disc Players, Components Thereof, and Products Containing Same. The sole patent at issue in the proposed investigation is U.S. Patent No. 6,263,505. The proposed respondents are D&M Holdings, Inc.; D&M Holdings US, Inc.; Denon Electronics (USA) LLC; Funai Electric Co., Ltd.; Funai Corporation, Inc.; Haier Group Corporation; Haier America Trading, LLC; Harman International Industries, Inc.; Inkel Corporation; LG Electronics, Inc.; LG Electronics U.S.A., Inc.; Marantz America LLC; Onkyo Sound & Vision Corporation; Onkyo USA Corporation; Orion America, Inc.; Orion Electric Co., Ltd.; Panasonic Corporation; Panasonic Corporation of North America; P&F USA, Inc.; Philips Electronics North America Corp.; Pioneer Corporation; Pioneer Electronics(USA) Inc.; Samsung Electronics Co., Ltd.; Samsung Electronics America, Inc.; Sharp Corporation; Sharp Electronics Corporation; Sherwood America, Inc.; Sony Corporation; Sony Computer Entertainment, Inc.; Sony Corporation of America; Sony Electronics, Inc.; Sony Computer Entertainment America LLC; Toshiba Corporation; Toshiba America Information Systems, Inc.; VIZIO, Inc.; Yamaha Corporation; Yamaha Corporation of America; and Yamaha Electronics Corporation USA.