METHOD FOR PRODUCING GLASS PREFORM FOR OPTICAL FIBER
摘要
申请公布号
EP0348935(A3)
申请公布日期
1990.07.11
申请号
EP19890111759
申请日期
1989.06.28
申请人
SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人
ITO, MASUMI C/O YOKOHAMA WORKS OF SUMITOMO;YOKOTA, HIROSHI C/O YOKOHAMA WORKS OF SUMITOMO;DANZUKA, TOSHIO C/O YOKOHAMA WORKS OF SUMITOMO;TAKAGI, MASAHIRO C/O YOKOHAMA WORKS OF SUMITOMO
