| 发明名称 |
PREPARATION OF RODDSHAPED MOTHER MATERIAL FOR OPTICAL TRANSMISSION FIBER |
| 摘要 |
PURPOSE:To prevent moisture in surrounding atmosphere from mixing into glass film by laminating glass film under coverage of the discharging end of glass tube with dry air when laminating glass films of glass tube by gas phase deposition method. |
| 申请公布号 |
JPS5330349(A) |
申请公布日期 |
1978.03.22 |
| 申请号 |
JP19760105116 |
申请日期 |
1976.09.02 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE;FURUKAWA ELECTRIC CO LTD |
发明人 |
KAWANA AKIO;KUROBA TOSHIAKI;YOSHIDA KAZUAKI |
| 分类号 |
C03B19/14;C03B20/00;C03B37/018;G02B6/00 |
主分类号 |
C03B19/14 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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