Producer
Nemoto & Co.
Japanese inventor/supplier of LumiNova photoluminescent pigments (1993); partner in Super-LumiNova.
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1 input Nemoto & Co. supplies
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Photoluminescent Pigments (LumiNova)
Sensors & Catalysts
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Did you know2024
Nemoto, a Japanese specialty-materials company, invented the modern non-radioactive glow material — LumiNova, a strontium-aluminate pigment that absorbs light and re-emits it for hours — and it is the upstream source of the Super-LumiNova that glows on watch dials (marketed via its Swiss joint venture with RC Tritec). But the watch application is the small, glamorous one. The same long-afterglow pigment's most consequential use is life safety: the photoluminescent emergency-egress markings, exit signs, stair-edge strips and floor-path systems that glow in the dark to guide people out of buildings, ships, aircraft and tunnels when the power fails or smoke fills a corridor. So the very same chemistry that makes a dive watch look cool in the dark is, in another product, a code-mandated safety system that saves lives during blackouts and fires. The decorative glow and the life-saving glow are literally the same invention — one of the clearest dual-use cases in this radar, spanning luxury accessories and emergency infrastructure.
Nemoto & Co., Ltd. ↗Origin2024
The modern glow-in-the-dark industry has a clear inventor and an unusual two-country structure. Nemoto & Co., founded in 1941 in Tokyo, developed long-afterglow strontium-aluminate photoluminescent pigments in the 1990s that were dramatically brighter and longer-lasting than the old zinc-sulfide glows — and, crucially, non-radioactive, displacing radium and tritium. To serve the exacting Swiss watch industry, Nemoto formed LumiNova AG Switzerland with RC Tritec, so the pigment is Japanese-invented but Swiss-finished and qualified for horology under the Super-LumiNova name. Nemoto itself is diversified well beyond glow pigments into gas sensors and catalysts. The arrangement is a neat illustration of how a single materials breakthrough gets split across geographies by end-market: the Japanese inventor supplies the chemistry, a Swiss partner adapts and certifies it for luxury watches, and the same base material flows separately into the global safety-signage industry.
Nemoto & Co., Ltd. ↗