Mitsubishi Chemical Corporation (MCC; Head office: Chiyoda-ku, Tokyo; President Hiroaki Ishizuka) and National Institute for Materials Science (NIMS; Location: Tsukuba-shi, Ibaraki; President: Sukekatsu Ushioda) has announced that the Patent Court of Korea rejected an appeal by U.S.-based Intematix Corporation contesting a patent for red phosphor owned by MCC and NIMS (Korean Patent No. 816693*1) -- a material used extensively in light-emitting diodes (LEDs). The court's decision, effective June 3, 2014, rules in favor of the patent's validity.
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