DOWA ELECTRONICS MATERIALS CO., LTD. (Headquarters: 14-1 Sotokanda 4-chome, Chiyoda-ku, Tokyo; Capital: 1 billion yen; President: Akira Otsuka), a subsidiary of DOWA HOLDINGS CO., LTD. (Headquarters: same as above; Capital: 36.4 billion yen; President: Masao Yamada), has successfully developed a deep ultraviolet LED chip featuring the world’s highest output power of 90 mW, with a peak wavelength of 310 nm, and dimensions of 1 mm × 1 mm.