 This technology offers up to ten times higher brightness than previous zinc sulfide–based materials.Super-LumiNova is based on LumiNova pigments, invented in 1993 by Nemoto & Co., Ltd. of Japan as a safe replacement for radium-based luminous paints.Nemoto & Co. was founded in December 1941 as a luminous paint processing company and has supplied paint to the watch and clock industry for over 70 years.