The patent was originally from Australia Tridonic Optoelectronics, Germany and the German Litec Leuchtstoffwerk Breitungen co-owned. Toyoda Gosei to obtain authorization to pay the license fee has been produced and sold the company's white LED "TG White Hi". The right to obtain 20%, in TG White Hi production and sales in the company although still pay licensing fees, but get some rights, licensing fees will be reduced accordingly. Toyoda Gosei said to disclose the specific amount, but is indeed very low.
As with blue LED, white LED, the fluorescent material is used there is a YAG (yttrium aluminum garnet)-like material and TAG (terbium aluminum garnet)-like material. YAG-like materials using a white LED is now mainstream, and said to Nichia Corporation OSRAM, Germany has the basic patent. Toyoda Gosei since September 2002 and the Nichia on GaN-type blue LED patent dispute settlement has been received from Nichia Chemical Industries, the use of YAG-like material, white LED-related patents. TAG classes on the use of materials and blue LED white LED, the Taiwan-based manufacturers in this way more and more.