Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – Process of manufacturing optical fibers – waveguides – or...
Reexamination Certificate
2009-02-12
2011-10-18
Daniels, Matthew (Department: 1741)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
Process of manufacturing optical fibers, waveguides, or...
C065S414000, C065S427000
Reexamination Certificate
active
08037718
ABSTRACT:
Method for manufacturing an optical fiber perform, which forms a glass fine particle deposition portion composed of glass fine particles on a glass rod, and suspends the glass fine particle deposition vertically into a heating furnace to heat, and transparentize, the glass fine particle deposition. The method comprises the following steps: forming a hazy portion before heating, by causing a surface portion of the glass rod to sublime and adhere to at least a portion of a region closer to one end of the glass rod than a region of the glass rod where the deposition portion is formed; forming the deposition portion by depositing the glass fine particles on the glass rod; and transparentizing the deposition portion by heating the glass fine particle deposition in a state where the proximal end of the glass rod where the hazy portion is formed is suspended vertically into the heating furnace.
REFERENCES:
patent: 6467311 (2002-10-01), Fujii et al.
patent: 2002/0194879 (2002-12-01), Takei et al.
patent: 2004/0118164 (2004-06-01), Boek et al.
patent: 2007/0283722 (2007-12-01), Pathak et al.
patent: 0401742 (1990-12-01), None
patent: 07-223833 (1995-08-01), None
patent: 08-310828 (1996-11-01), None
patent: 08-310828 (1996-11-01), None
patent: 2000-109333 (2000-04-01), None
patent: 2003-081657 (2003-03-01), None
patent: 2243944 (2004-08-01), None
patent: 2008/093352 (2008-08-01), None
Bansal, Handbook of Glass Properties, 1986, Elsevier, p. 13.
Daniels Matthew
Fujikura Ltd.
Herring Lisa
Sughrue & Mion, PLLC
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