公开(公告)号：US10245423B2

公开(公告)日：2019-04-02

申请号：US14889808

申请日：2014-05-02

Applicant: JUVIC INC.

Inventor： Hyung Il Jung ,  Hui Suk Yang ,  Su Yong Kim

IPC: A61M37/00 ,  B29C41/08 ,  C09D101/08 ,  A61K9/50 ,  B29L31/00

Abstract: The present invention relates to a method for manufacturing a microstructure, the method comprising the steps of: (a) preparing a viscous composition on a lower substrate; and (b) applying centrifugal force to the viscous composition to induce extension of the viscous composition, thereby manufacturing a microstructure. According to the present invention, (i) a microstructure having a micro-unit diameter and sufficient effective length and hardness is provided; (ii) any process that may destroy activation of a drug or cosmetic component, such as high-temperature treatment, organic solvent treatment, etc., is avoided; (iii) loss resulting from contact and separation is reduced; (iv) the limitation of aspect ratio of the manufactured microstructure is overcome; (v) the limitation of yield resulting from flatness is overcome; and (vi) microstructures of various shapes can be manufactured.