This excerpt taken from the LPL 6-K filed Jun 24, 2009.
About Idemitsu Kosan
In 1997, Idemitsu employed its proprietary molecular design and organic synthesis technologies to develop what was then the worlds brightest blue-light organic luminous material. The company continued to develop cutting-edge OLED materials and various device technologies. Current R&D is focused on materials that can be used for mid to large-sized displays or lighting. Idemitsu is active in the protection and application of its intellectual properties in technology development and businesses. It retains a large number of critical patents regarding OLED technologies.