News HOME News Genre News IR News Category All Topics Management Product and Technology Environmental Corporate Culture Community and Sports Finances and stocks Other Archive 2024 2023 2022 2021 2020 Past News ▼ October 05, 2004 Development and Marketing of 1000mcd White LED July 21, 2004 Partial Taking Over of Others’ Patent in Respect of White LED April 20, 2004 Second Production Base for Blue LEDs Established View list