Idemitsu Kosan Co., Ltd. and Toray Industries, Inc. have entered into an agreement for technical cooperation relating to OLED materials, which both parties expect to be an area of future growth.   Idemitsu and Toray will mutually utilize the OLED materials, technology and expertise that they possess, and cooperate in the development of new materials and material evaluation. Both parties will aim to cooperate and effectively use the assets they possess, including evaluation facilities and produ...