 Complete the following phrase:  Along with Hattori Tadasaburō, Kawade developed the  piling up technique which places layers of enamel upon each other to create a three-dimensional effect, often used in depicting flowers or blossoms. Another technique he invented was drip-glaze, which produces a rainbow-coloured glaze. In 1902, he was the first Japanese artist to use the  technique, in which the metal foundation is hammered outwards to create a relief effect. He also used the new technique  in Japanese which creates panels of transparent or semi-transparent enamel. Enamel , linked by wires, are prepared on a copper surface which is then burned away with acid while the enamel itself is protected by lacquer. This was invented in France and came to Japan when Ando Jubei, one of the founders of the Ando Cloisonné Company, bought an enamel by André Ferd Thesmar at the 