About AKAI TOMOKO
About 産業技術総合研
About phosphor
About resource conservation
About terbium
About europium
About fluorescent lamp
About waste
About reuse
About magnetic separation(mineral dressing)
About light emitting diode
About quantum dot
About rare metal
About rare earth element
About high intensity magnetic separation
About semiconductor quantum dot
About Light sources,lighting apparatus
About 希少金属
About 代替材料
About 開発
About 減量
About 希土類
About 蛍光体
About 使用量
About 代替
About 展開