Inventor
IINUMA HITOSHI
JP6 patents
Patents
6 patentsUS5366531ANov 22, 1994
Preparation of a preform of optical fibers
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Apparatus and method for manufacturing porous glass preform for optical fiber
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Manufacturing apparatus and manufacturing method of porous glass base material for optical fiber
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Manufacturing apparatus and manufacturing method of porous glass base material for optical fiber
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US11427495B2Aug 30, 2022
Manufacturing apparatus and manufacturing method of porous glass base material for optical fiber
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Manufacturing method of porous glass base material for optical fiber and manufacturing apparatus
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