심재혁 조영환 박종구 2024-01-12T07:46:02Z 2024-01-12T07:46:02Z 2005-11-04 https://pubs.kist.re.kr/handle/201004/81355 균일한　고용체　입자구조를　갖는　초미세　결정립　서메트　제조방법 Patent 2005-11-04 2003-08-26 0528046 2003-0058941 KO 특허 한국과학기술연구원