제해준 김병국 2024-01-12T05:31:20Z 2024-01-12T05:31:20Z 2004-10-08 https://pubs.kist.re.kr/handle/201004/78572 강유전체와　강자성체의　복합체　및　그제조　방법 Patent 2004-10-08 2000-11-06 3605027 12-338251 JA 특허 한국과학기술연구원