김효태 김윤호 2024-01-12T16:30:42Z 2024-01-12T16:30:42Z 2003-08-13 https://pubs.kist.re.kr/handle/201004/91310 저온소결　저손실　고주파유전체　세라믹스　조성물　및　그　제조방법 Patent 2003-08-13 2001-12-21 119432 00809330.X CC 특허 한국과학기술연구원