发明名称 |
Optical fiber preform manufacturing method |
摘要 |
An optical fiber preform manufacturing method includes: supporting a drilling jig in a radial direction of a preform that is cylinder-shaped; moving the drilling jig in a longitudinal direction of the preform; and forming a plurality of slits each extending in the longitudinal direction and each directed from an outer side of the preform toward a center the preform, and a plurality of holes each extending in the longitudinal direction and each connecting with an end of one of the plurality of slits in a depth direction of the one of the plurality of slits. |
申请公布号 |
US8181487(B2) |
申请公布日期 |
2012.05.22 |
申请号 |
US20100875167 |
申请日期 |
2010.09.03 |
申请人 |
SUGIZAKI RYUICHI;KUMANO NAOMI;SHIMOTAKAHARA IWAO;INABA HARUMI;YAGI TAKESHI;SHIMIZU TOMOYA;KURASHIMA TOSHIO;NAKAJIMA KAZUHIDE;FURUKAWA ELECTRIC CO., LTD.;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
SUGIZAKI RYUICHI;KUMANO NAOMI;SHIMOTAKAHARA IWAO;INABA HARUMI;YAGI TAKESHI;SHIMIZU TOMOYA;KURASHIMA TOSHIO;NAKAJIMA KAZUHIDE |
分类号 |
C03B37/022 |
主分类号 |
C03B37/022 |
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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