2017-05-25

Patent Reexamination Board of the SIPO Dismisses Intematix Suzhou Lighting’s Claim Against Red Phosphor Patent Owned by Mitsubishi Chemical and NIMS

Mitsubishi Chemical Corporation (MCC; Head office: Chiyoda-ku, Tokyo; President: Hitoshi Ochi) and National Institute for Materials Science (NIMS; Location: Tsukuba-shi, Ibaraki; President: Kazuhito Hashimoto) today announced that the Patent Reexamination Board of the State Intellectual Property Office of the P.R.C. (SIPO) has dismissed every aspect of the claim, filed on November 2, 2016, by China’s Intematix Suzhou Lighting Co., Ltd.* 1 (Intematix Suzhou Lighting), requesting for the invalidation of the Chinese patent (No. ZL201110066517.7; “the patent”* 2 ) for red phosphor, a material used extensively in light-emitting diodes (LEDs), owned by MCC and NIMS. The board approved the validity of the patent, and MCC and NIMS received the written decision effective May 10. 
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