| 发明名称 |
PREPARATION OF MATERIAL GLASS FOR OPTICAL FIBER |
| 摘要 |
PURPOSE:To avoid mixing of impurities or moisture into glass in preparation of material glass for optical fiber to be used for optical communication by forming annular space for gas discharge between the reaction tube wall of a veritical type reactor and the crucible wall to thereby make smaller transmission loss. |
| 申请公布号 |
JPS5347847(A) |
申请公布日期 |
1978.04.28 |
| 申请号 |
JP19760121876 |
申请日期 |
1976.10.13 |
| 申请人 |
FUJITSU LTD |
发明人 |
AKAMATSU TAKESHI;GOTOU JIYUNJIROU;OKADA HISANAO |
| 分类号 |
C03B37/018;C03B37/012;C03B37/014;G02B6/00 |
主分类号 |
C03B37/018 |
| 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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