Mitsubishi Chemical files patent infringement suit against Intematix, GVP

Mitsubishi Chemical Corp recently filed a patent infringement lawsuit against U.S. company Intematix Corp and South Korean distributor GVP to enjoin them from importing and selling their phosphor products, claiming that they infringe a red phosphor patent in South Korea, which is owned by MCC and the National Institute of Material Science.

The Korean patent relates to a nitride-type red phosphor commonly known as CASN and SCASN, and LED, lighting equipment and image display, in which such phosphor is used. CASN and SCASN are the only red phosphors to be used in LED due to its high brightness and reliability. Such red phosphor MCC now sells is supported and held in high repute by many LED manufacturers.

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