Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries LtdfiledCriticalNippon Telegraph and Telephone Corp
Priority to JP920283ApriorityCriticalpatent/JPS59137336A/ja
Publication of JPS59137336ApublicationCriticalpatent/JPS59137336A/ja
Publication of JPS6218490B2publicationCriticalpatent/JPS6218490B2/ja
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
C03B37/01—Manufacture of glass fibres or filaments
C03B37/012—Manufacture of preforms for drawing fibres or filaments
C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
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Materials Engineering
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Organic Chemistry
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Manufacture, Treatment Of Glass Fibers
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Light Guides In General And Applications Therefor
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