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1. 发明授权

US4793842A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4793842A
公开(公告)日：1988-12-27
申请号：US139141
申请日：1987-12-21
申请人： Hiroshi Yokota , Hiroo Kanamori , Gotaro Tanaka , Hiroshi Suganuma , Toshio Danzuka
发明人： Hiroshi Yokota , Hiroo Kanamori , Gotaro Tanaka , Hiroshi Suganuma , Toshio Danzuka
IPC分类号： G02B6/00 , C03B20/00 , C03B37/012 , C03B37/025 , G02B6/02 , C03B37/014 , C03B37/027
CPC分类号： C03B37/01211 , Y02P40/57 , Y10S65/16 , Y10S65/90
摘要： A rod-in-tube method for producing a glass preform for use in the fabrication of an optical fiber, which comprises steps of inserting a glass rod constituting a core material in a glass tube constituting a cladding material, heating the rod-tube composite by an outer heating source with introducing, in the gap between the rod and the tube, a gaseous mixture containing a silicon halogenide, a fluorine-containing compound and oxygen gas in which a ratio of silicon and fluorine (Si/F) is larger than 1/300 and smaller than 1/5, and heating and fusing the composite at a temperature not lower than 1,900.degree. C. with filling the gap by a gaseous mixture comprising a halogen-containing compound and oxygen gas; from which glass preform, an optical fiber with low attenuation of light transmission, particularly in a long wavelength range, is fabricated.
摘要翻译：一种用于制造用于制造光纤的玻璃预制棒的棒管式方法，包括以下步骤：将构成芯材的玻璃棒插入构成包层材料的玻璃管中，通过以下步骤加热棒管复合物：外部加热源，其在棒和管之间的间隙中引入含有硅和氟（Si / F）比大于1的硅卤化物，含氟化合物和氧气的气体混合物 / 300且小于1/5，并且在不低于1900℃的温度下加热和熔合复合材料，通过包含含卤化合物和氧气的气体混合物填充间隙; 制造玻璃预制件，具有低透光衰减的光纤，特别是在长波长范围内。

2. 发明授权

US4668263A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4668263A
公开(公告)日：1987-05-26
申请号：US794847
申请日：1985-11-04
申请人： Hiroshi Yokota , Gotaro Tanaka , Hiroo Kanamori , Futoshi Mizutani , Toshio Danzuka
发明人： Hiroshi Yokota , Gotaro Tanaka , Hiroo Kanamori , Futoshi Mizutani , Toshio Danzuka
IPC分类号： G02B6/00 , C03B8/00 , C03B20/00 , C03B23/207 , C03B37/012 , C03B37/027
CPC分类号： C03B37/01211 , Y10S65/16 , Y10S65/90
摘要： A rod-in-tube method for producing a glass preform for use in the fabrication of an optical fiber, which comprises steps of inserting a glass rod as a core material in a glass tube as a cladding material, fusing and closing one end of the cladding material, filling a gap between the core and cladding materials with an atmosphere containing at least one gaseous halogen-containing compound and then heating the core and cladding materials at a temperature not lower than 1,900.degree. C. to collapse the gap between them and to fuse them together, from which glass preform, an optical fiber with low attenuation of light transmission is fabricated.
摘要翻译：一种用于制造用于制造光纤的玻璃预制棒的棒管式方法，包括将作为芯材的玻璃棒作为包层材料插入玻璃管中的步骤，将玻璃棒的一端用包含至少一种含气体的化合物的气氛填充芯和包层材料之间的间隙，然后在不低于1900℃的温度下加热芯和包层材料，以使它们之间的间隙折叠到将它们融合在一起，制造玻璃预制件，具有低光透射衰减的光纤。

3. 发明授权

US5238479A Method for producing porous glass preform for optical fiber 失效
标题翻译：光纤多孔玻璃预制棒的制造方法
公开(公告)号：US5238479A
公开(公告)日：1993-08-24
申请号：US984734
申请日：1992-12-04
申请人： Yuichi Ohga , Toshio Danzuka , Hiroo Kanamori , Hiroshi Yokota
发明人： Yuichi Ohga , Toshio Danzuka , Hiroo Kanamori , Hiroshi Yokota
IPC分类号： C03B37/014
CPC分类号： C03B37/0142 , C03B2201/31 , C03B2203/22 , C03B2203/26 , C03B2207/06 , C03B2207/20 , C03B2207/24 , C03B2207/26 , C03B2207/28 , C03B2207/50
摘要： The invention is a method for producing a porous preform for use in the fabrication of an optical fiber at least two burners synthesize glass soot particles, one of which generates a double-layer flame and one of which is used for forming a core part of the preform. The method comprises the steps of supplying SiCl.sub.4 and optionally GeCl.sub.4 to the inner flame of the double-layer flame, and only SiCl.sub.4 to an outer flame of the double-layer flame to flame hydrolyze the supplied compounds and synthesize glass soot particles. Compounds SiCl.sub.4 and GeCl.sub.4 as glass-forming raw materials are supplied to the burner for forming the core part of the preform by depositing the generated glass soot particles on the lower end of a rotating starting member. The generated porous preform comprises a core part containing at least partly GeO.sub.2, and a surface having a low concentration of GeO.sub.2 which reduces cracking or peeling.
摘要翻译：本发明是用于制造用于制造光纤的多孔预制棒的方法，至少两个燃烧器合成玻璃烟灰颗粒，其中一个产生双层火焰，其中一个用于形成预制件。该方法包括以下步骤：向双层火焰的内部火焰提供SiCl 4和任选的GeCl 4，并且仅将SiCl 4与双层火焰的外部火焰直接火焰水解所提供的化合物并合成玻璃烟灰颗粒。作为玻璃形成原料的化合物SiCl4和GeCl4通过将生成的玻璃烟灰颗粒沉积在旋转起始构件的下端而供给到用于形成预成型体的芯部的燃烧器。生成的多孔预制件包括至少部分含有GeO 2的核心部分和具有低浓度GeO 2的表面，其减少开裂或剥离。

4. 发明授权

US4765815A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4765815A
公开(公告)日：1988-08-23
申请号：US88542
申请日：1987-08-20
申请人： Toshio Danzuka , Hiroshi Yokota , Yoichi Ishiguro
发明人： Toshio Danzuka , Hiroshi Yokota , Yoichi Ishiguro
IPC分类号： C03B37/018 , C03B8/04 , C03B37/014 , G02B6/00
CPC分类号： C03B37/0142 , C03B2201/08 , C03B2207/06 , C03B2207/20 , C03B2207/30 , C03B2207/50 , Y02P40/57
摘要： A method for producing a glass preform for an optical fiber by means at least two burners, comprising jetting a glass raw material containing SiCl.sub.4 from the first center burner and a hydrogen-containing silicon compound with larger reaction heat than SiCl.sub.4 from at least one second burner, flame hydrolyzing the glas raw material to synthesizing fine glass particles, depositing the fine glass particles on a starting member to form a porous soot preform and heating and sintering the soot preform to obtain a transparent glass preform, by which a large preform is stably produced and a bulk density of the preform is easily controlled.
摘要翻译：一种用于通过至少两个燃烧器制造用于光纤的玻璃预制棒的方法，包括从第一中心燃烧器喷射含有SiCl 4的玻璃原料和来自至少一个第二燃烧器的比SiCl4更大的反应热的含氢硅化合物火焰水解玻璃原料以合成细微玻璃颗粒，在起始部件上沉积微细玻璃颗粒以形成多孔烟炱预制件，并加热和烧结烟炱预制件以获得透明玻璃预成型件，通过该玻璃预制件稳定地制造大型预制件并且易于控制预成型体的体积密度。

5. 发明授权

US4938789A Raw material supplying device and process 失效
标题翻译：原材料供应装置和工艺
公开(公告)号：US4938789A
公开(公告)日：1990-07-03
申请号：US205030
申请日：1988-06-07
申请人： Ichiro Tsuchiya , Hiroshi Yokota , Toshio Danzuka , Hideki Minami
发明人： Ichiro Tsuchiya , Hiroshi Yokota , Toshio Danzuka , Hideki Minami
IPC分类号： B01J4/02 , B01J7/00 , C03B8/04 , C03B37/014 , C03B37/018 , C23C16/448
CPC分类号： C03B37/01413 , C23C16/4485 , C03B2207/81 , C03B2207/85 , Y10T137/2452 , Y10T137/2499 , Y10T137/2605 , Y10T137/3118
摘要： A raw material supplying device having a gas tight tank for receiving a material to be gasified by heating; a heater for heating the raw material within the tank and a plurality of pipes for conveying a plurality of streams of gas in parallel to each other to a plurality of ports of a reaction apparatus, and a process for using the raw material supplying device. The raw material supplying device can be used in a system for manufacturing glass fibers in which the ends of the plurality of pipes are connected to the gas feed ports of at least one multi-layer burner.
摘要翻译：一种原料供给装置，具有用于接收通过加热气化的材料的气密罐; 用于对罐内的原料进行加热的加热器以及将反应装置的多个端口彼此平行地输送多个气体流的多个管道，以及使用该原料供给装置的工序。原料供给装置可以用于制造玻璃纤维的系统，其中多个管的端部连接至至少一个多层燃烧器的气体供给口。

6. 发明授权

US4781740A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4781740A
公开(公告)日：1988-11-01
申请号：US16354
申请日：1987-02-19
申请人： Toshio Danzuka , Hiroshi Yokota , Yoichi Ishiguro
发明人： Toshio Danzuka , Hiroshi Yokota , Yoichi Ishiguro
IPC分类号： G02B6/00 , C03B37/014 , C03B37/018
CPC分类号： C03B37/0142 , C03B2207/06 , C03B2207/20 , C03B2207/28 , C03B2207/30 , C03B2207/32
摘要： A method for producing a glass preform for an optical fiber comprising jetting SiCl.sub.4 as a glass-forming raw material and an insert gas from a first nozzle of a multi-nozzle burner and, as another glass-forming raw material, at least one hydrogen-containing silicon compound with larger oxidation or hydrolysis reaction heat than that of SiCl.sub.4 selected from the group consisting of SiHCl.sub.3, SiH.sub.2 Cl.sub.2, SiH.sub.3 Cl and SiH.sub.4 from a second nozzle surrounding the first nozzle, flame hydrolyzing or oxidizing the glass-forming raw materials to synthesize glass soot particles, depositing the glass soot particles on a starting member to form a porous soot preform with a controlled bulk density distribution and heating and sintering the soot preform to obtain a transparent glass preform, by which a large glass preform is stably produced without cracking.
摘要翻译：一种用于生产用于光纤的玻璃预制棒的方法，包括从作为玻璃形成原料的SiCl 4和从多喷嘴燃烧器的第一喷嘴喷射的气体，以及作为另一种玻璃形成原料的至少一种氢 - 含有比由围绕第一喷嘴的第二喷嘴选自SiHCl 3，SiH 2 Cl 2，SiH 3 Cl和SiH 4的SiCl 4更大的氧化或水解反应热的硅化合物，对玻璃形成原料进行火焰水解或氧化以合成玻璃烟灰颗粒，将玻璃烟灰颗粒沉积在起始构件上以形成具有受控堆积密度分布的多孔烟炱预制件，并加热和烧结烟炱预制件以获得透明玻璃预制件，通过该玻璃预制件可稳定地生产大的玻璃预制件而不发生裂纹。

7. 发明授权

US5338327A Method of flame abrasion of glass preform 失效
标题翻译：玻璃预制件的火焰磨损方法
公开(公告)号：US5338327A
公开(公告)日：1994-08-16
申请号：US918036
申请日：1992-07-24
申请人： Yuichi Ohga , Toshio Danzuka , Masahide Saito , Kouji Amemiya , Hiroshi Yokota
发明人： Yuichi Ohga , Toshio Danzuka , Masahide Saito , Kouji Amemiya , Hiroshi Yokota
IPC分类号： C03B29/04 , C03B37/012 , C03B37/15 , C03B37/025
CPC分类号： C03B37/01237
摘要： A glass preform for an optical fiber is flame abrased with an oxyhydrogen flame while vertically suspending and rotating the glass preform and relatively moving one or both of the glass preform and the oxyhydrogen flame, whereby a surface of the glass preform is smoothened.
摘要翻译：用于光纤的玻璃预制件是用氢氧焰火焰磨损，同时垂直悬挂和旋转玻璃预制件并相对移动玻璃预制件和氢氧焰的一个或两个，由此使玻璃预制件的表面平滑。

8. 发明授权

US5207813A Method for producing glass article 失效
标题翻译：生产玻璃制品的方法
公开(公告)号：US5207813A
公开(公告)日：1993-05-04
申请号：US754470
申请日：1991-09-04
申请人： Toshio Danzuka , Masumi Ito , Masahiro Takagi , Hiroshi Yokota
发明人： Toshio Danzuka , Masumi Ito , Masahiro Takagi , Hiroshi Yokota
IPC分类号： G02B6/00 , C03B8/04 , C03B37/014 , C03B37/018
CPC分类号： C03B37/0142 , C03B37/01413 , C03B2207/06 , C03B2207/20 , C03B2207/36 , C03B2207/38 , C03B2207/60 , C03B2207/70 , C03B2207/85 , Y02P40/57
摘要： A glass article is produced at a high production rate and a high yield by jetting a glass-forming raw material from a multi-port burner, synthesizing glass soot through hydrolysis of the glass-forming raw material, depositing the glass soot to form a soot preform and heating and vitrifying the soot preform to produce a transparent glass article, wherein the glass-forming raw material is vaporized by heating it at a temperature higher than its boiling point and directly supplied to the burner, the vaporized glass-forming raw material and a fuel gas for synthesizing glass soot are supplied to an inner port of the multi-port burner and a fuel gas for heating a formed preform is supplied to an outer port of the multi-port burner, and a molar ratio of water generated by a reaction of the fuel gas for synthesizing glass soot to the glass-foring raw material is from to 2 to 3.

9. 发明授权

US4978378A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4978378A
公开(公告)日：1990-12-18
申请号：US372084
申请日：1989-06-28
申请人： Masumi Ito , Hiroshi Yokota , Toshio Danzuka , Masahiro Takagi
发明人： Masumi Ito , Hiroshi Yokota , Toshio Danzuka , Masahiro Takagi
IPC分类号： C03B8/04 , C03B37/014 , G02B6/00
CPC分类号： C03B37/01446 , Y10S65/90
摘要： A glass preform for use in the fabrication of an optical fiber having little bubbles is produced by a method comprising depositing glass soot on a periphery of a starting glass rod to form a porous glass preform, heating and sintering the porous glass preform in a helium atmosphere to consolidate the porous glass preform and then heating the sintered glass in an atmosphere containing an inert gas except helium having partial pressure of the inert gas of not lower than 0.8 atm. to obtain a transparent glass preform.

10. 发明授权

US5352261A Apparatus for the production of hermetically coated optical fiber 失效
标题翻译：用于生产气密涂层光纤的设备
公开(公告)号：US5352261A
公开(公告)日：1994-10-04
申请号：US66427
申请日：1993-05-25
申请人： Haruhiko Aikawa , Katsuya Nagayama , Toshio Danzuka
发明人： Haruhiko Aikawa , Katsuya Nagayama , Toshio Danzuka
IPC分类号： C03C25/42 , C03C25/10 , C03C25/22 , C23C16/54 , G02B6/44 , C03B37/023
CPC分类号： C03C25/223 , C03C25/1075 , C23C16/545
摘要： There is provided an apparatus for the production of a hermetically coated optical fiber in which a glass preform for an optical fiber is melt drawn in a melt drawing furnace to produce a bare optical fiber which is passed to a reactor where a feed gas is supplied and the bare optical fiber is coated with a thin carbon coating made from the feed gas by the Chemical Vapor Deposition method characterized in that the reactor comprises an upper portion to which the feed gas is supplied, a middle portion in which the CVD method is substantially carried out and a lower portion from which an exhausted gas is withdrawn, and a cross sectional area of the middle portion perpendicular to a longitudinal direction of the optical fiber is larger than that of the upper portion.
摘要翻译：提供了一种用于制造气密涂层光纤的装置，其中用于光纤的玻璃预制棒在熔融拉制炉中熔融拉伸，以产生裸光纤，该裸光纤通过供给进料气体的反应器，通过化学气相沉积方法，由原料气体制成的薄碳涂层涂覆裸光纤，其特征在于反应器包括供给气体的上部，其中基本上承载有CVD方法的中间部分排出气体排出的下部和与光纤的长度方向垂直的中间部分的截面积大于上部的横截面积。

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