0000032878-98-000028 NT 10-K 1 19980630 19980929 NASD ENERGY CONVERSION DEVICES INC 0000032878 3690 381749884 DE 0630 NT 10-K 34 001-08403 98716716 1675 W MAPLE RD TROY MI 48084 8102801900 ENERGY CONVERSION LABORATORIES INC 19710603 NT 10-K 1 000003287898000028-001-seq1-nt-10-k.txt NOTIFICATION OF LATE FILING