<；P>；PROBLEM TO BE SOLVED: To provide a microneedle chip aggregate easy of management. <；P>；SOLUTION: The microneedle chip aggregate is constituted by arranging a large number of microneedle chips. By arranging a large number the microneedle chips, the microneedle chips can be formed into a sheet/tape shape to be produced/kept/transported. Accordingly, the damage of the microneedle chips caused by the mutual contact of the microneedle chips at the time of production/keeping/transport by forming the microneedle chips into the sheet/tape shape. Further, the necessity for the precise individual control of the microneedle chips can be reduced and the labor of control/keeping can be reduced. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
