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1. 发明授权

US06709997B2 Silica glass article and manufacturing process therefor 失效
标题翻译：二氧化硅玻璃制品及其制造工艺
公开(公告)号：US06709997B2
公开(公告)日：2004-03-23
申请号：US09998328
申请日：2001-12-03
申请人： Akira Urano , Toshio Danzuka , Tatsuhiko Saito , Yasuhiko Shishido , Masaharu Mogi , Michihisa Kyoto
发明人： Akira Urano , Toshio Danzuka , Tatsuhiko Saito , Yasuhiko Shishido , Masaharu Mogi , Michihisa Kyoto
IPC分类号： C03C1304
CPC分类号： G02B6/102 , C03B19/1453 , C03B32/00 , C03B37/01446 , C03B37/14 , C03B37/15 , C03B2201/07 , C03B2201/12 , C03B2201/21 , C03B2201/23 , C03C3/06 , C03C4/0085 , C03C13/045 , C03C23/002 , C03C23/0025 , C03C23/003 , C03C23/0035 , C03C23/0095 , C03C25/6208 , C03C2201/21 , C03C2201/23 , C03C2203/50 , G02B6/02 , Y02P40/57 , Y10S501/905
摘要： A process of manufacturing a silica glass article comprising the steps of: (1) irradiating a silica glass article with electromagnetic waves to generate defects therein; and (2) immersing the thus irradiated silica glass article in an atmosphere comprising a hydrogen gas, thereby providing the resulting silica glass article with a characteristic that is effective for preventing it substantially from increasing its absorption within an ultraviolet region due to ultraviolet ray irradiation. Also disclosed are a silica glass article or a glass fiber produced according to the manufacturing process.
摘要翻译：一种制造石英玻璃制品的方法，包括以下步骤：（1）用电磁波照射石英玻璃制品以在其中产生缺陷; 和（2）将这样照射的二氧化硅玻璃制品浸入包括氢气的气氛中，从而使得到的石英玻璃制品具有有效地防止紫外线辐射在紫外线区域内大幅吸收的特征。还公开了根据制造方法制造的石英玻璃制品或玻璃纤维。

2. 发明授权

US06333283B1 Silica glass article and manufacturing process therefor 失效
标题翻译：二氧化硅玻璃制品及其制造工艺
公开(公告)号：US06333283B1
公开(公告)日：2001-12-25
申请号：US09369425
申请日：1999-08-06
申请人： Akira Urano , Toshio Danzuka , Tatsuhiko Saito , Yasuhiko Shishido , Masaharu Mogi , Michihisa Kyoto
发明人： Akira Urano , Toshio Danzuka , Tatsuhiko Saito , Yasuhiko Shishido , Masaharu Mogi , Michihisa Kyoto
IPC分类号： C03C306
CPC分类号： G02B6/102 , C03B19/1453 , C03B32/00 , C03B37/01446 , C03B37/14 , C03B37/15 , C03B2201/07 , C03B2201/12 , C03B2201/21 , C03B2201/23 , C03C3/06 , C03C4/0085 , C03C13/045 , C03C23/002 , C03C23/0025 , C03C23/003 , C03C23/0035 , C03C23/0095 , C03C25/6208 , C03C2201/21 , C03C2201/23 , C03C2203/50 , G02B6/02 , Y02P40/57 , Y10S501/905
摘要： A process of manufacturing a silica glass article comprising the steps of: (1) irradiating a silica glass article with electromagnetic waves to generate defects therein; and (2) immersing the thus irradiated silica glass article in an atmosphere comprising a hydrogen gas, thereby providing the resulting silica glass article with a characteristic that is effective for preventing it substantially from increasing its absorption within an ultraviolet region due to ultraviolet ray irradiation. Also disclosed are a silica glass article or a glass fiber produced according to the manufacturing process.
摘要翻译：一种制造石英玻璃制品的方法，包括以下步骤：（1）用电磁波照射石英玻璃制品以在其中产生缺陷; 和（2）将这样照射的二氧化硅玻璃制品浸入包括氢气的气氛中，从而使得到的石英玻璃制品具有有效地防止紫外线辐射在紫外线区域内大幅吸收的特征。还公开了根据制造方法制造的石英玻璃制品或玻璃纤维。

3. 发明授权

US5983673A Silica glass article and manufacturing process therefor 失效
公开(公告)号：US5983673A
公开(公告)日：1999-11-16
申请号：US80247
申请日：1998-05-18
申请人： Akira Urano , Toshio Danzuka , Tatsuhiko Saito , Yasuhiko Shishido , Masaharu Mogi , Michihisa Kyoto
发明人： Akira Urano , Toshio Danzuka , Tatsuhiko Saito , Yasuhiko Shishido , Masaharu Mogi , Michihisa Kyoto
IPC分类号： G02B6/00 , C03B20/00 , C03B37/10 , C03B37/14 , C03B37/15 , C03C3/06 , C03C4/00 , C03C13/04 , C03C23/00 , G02B6/02 , G02B6/10 , C03B37/00 , C03B27/012 , C03B37/01 , C03B37/018
CPC分类号： G02B6/102 , C03B37/14 , C03B37/15 , C03C13/045 , C03C23/002 , C03C23/003 , C03C23/0035 , C03C23/0095 , C03C3/06 , C03C4/0085 , G02B6/02 , C03B2201/07 , C03B2201/21 , C03B2201/23 , C03C2201/21 , C03C2201/23 , C03C2203/50 , Y02P40/57
摘要： A process of manufacturing a silica glass article comprising the steps of: (1) irradiating a silica glass article with electromagnetic waves to generate defects therein; and (2) immersing the thus irradiated silica glass article in an atmosphere comprising a hydrogen gas, thereby providing the resulting silica glass article with a characteristic that is effective for preventing it substantially from increasing its absorption within an ultraviolet region due to ultraviolet ray irradiation. Also disclosed are a silica glass article or a glass fiber produced according to the manufacturing process.

4. 发明授权

US06535679B2 Optical fiber and method of manufacturing the same 失效
标题翻译：光纤及其制造方法
公开(公告)号：US06535679B2
公开(公告)日：2003-03-18
申请号：US09007798
申请日：1998-01-15
申请人： Yoshio Yokoyama , Akira Urano , Toshio Danzuka
发明人： Yoshio Yokoyama , Akira Urano , Toshio Danzuka
IPC分类号： G02B622
CPC分类号： G02B6/02009 , C03B37/01446 , C03B37/01466 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/36 , G02B6/02276 , G02B6/03633 , Y02P40/57
摘要： In an optical fiber of this invention, the MFD is increased to effectively suppress the influence of nonlinear optical effects. A method of manufacturing the optical fiber effectively prevents bubble occurrence in a transparent preform, deformation of the preform, and flaws on the preform surface during the manufacture. The optical fiber has, from its center to the peripheral portion, a first core having a first refractive index n1, a second core having a second refractive index n2 ( n3,
摘要翻译：在本发明的光纤中，增加MFD以有效地抑制非线性光学效应的影响。制造光纤的方法有效地防止在制造过程中透明预制件中的气泡发生，预成型件的变形和预型件表面上的缺陷。光纤从其中心到周边部分具有第一折射率n1的第一纤芯和第二折射率n2（ n3，

5. 发明授权

US5755849A Method for elongating glass preform 失效
标题翻译：拉伸玻璃预制件的方法
公开(公告)号：US5755849A
公开(公告)日：1998-05-26
申请号：US756483
申请日：1996-11-26
申请人： Sumio Hoshino , Yuichi Ohga , Masumi Ito , Toshio Danzuka , Tatsuhiko Saito
发明人： Sumio Hoshino , Yuichi Ohga , Masumi Ito , Toshio Danzuka , Tatsuhiko Saito
IPC分类号： C03B23/047 , C03B37/012 , C03B37/014 , C03B37/07
CPC分类号： C03B23/047 , C03B37/0124 , C03B37/01466
摘要： The present invention relates to a method for precisely elongating a glass preform of an optical fiber body having a desired outer diameter. In this method, a predetermined part of the glass preform is elongated as tensile stress is applied to one end of the glass preform while a predetermined part of the glass preform is heated and softened successively from one end toward the other end of the glass preform. In this elongating operation, while the outer diameter of the softening portion of the glass preform is measured, the tensile stress is adjusted such that the outer diameter of the softening portion coincides with a preset value of the control outer diameter. In particular, this method is characterized in that the preset value of the control outer diameter is changed at least during a predetermined period until termination of elongation or during a predetermined period from the start of elongation.
摘要翻译：本发明涉及一种精确拉伸具有所需外径的光纤体的玻璃预制件的方法。在这种方法中，玻璃预成型件的预定部分是细长的，因为拉伸应力被施加到玻璃预制件的一端，同时玻璃预制件的预定部分从玻璃预制件的一端向另一端依次加热软化。在该拉伸操作中，在测量玻璃预制件的软化部分的外径的同时，调整拉伸应力使得软化部分的外径与控制外径的预设值一致。特别地，该方法的特征在于，控制外径的预设值至少在延伸终止的预定时段期间或从伸长开始的预定时段期间改变。

6. 发明授权

US5236482A Method for producing glass preform for optical fiber 失效
标题翻译：用于生产光纤玻璃预制件的方法
公开(公告)号：US5236482A
公开(公告)日：1993-08-17
申请号：US831433
申请日：1992-02-05
申请人： Toshio Danzuka , Masumi Ito , Tatsuhiko Saito , Ichiro Tsuchiya
发明人： Toshio Danzuka , Masumi Ito , Tatsuhiko Saito , Ichiro Tsuchiya
IPC分类号： C03B37/012 , C03B37/014 , G02B6/00
CPC分类号： C03B37/01211 , C03B37/01446 , C03B37/0146 , C03B37/01466 , Y02P40/57
摘要： A glass preform for use in the fabrication of an optical fiber having a reduced transmission loss is produced by synthesizing a soot preform by a vapor synthesis method and consolidating the soot preform in an electric furnace to obtain a glass preform, wherein an intermediate body consisting of a core portion and an inner part of a cladding portion is consolidated under atmospheric pressure and an outer part of the cladding portion which surrounds a periphery of the intermediated body is consolidated under reduced pressure or in vacuo.

7. 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。

8. 发明授权

US5250097A Method for producing glass soot deposit 失效
标题翻译：生产玻璃烟灰沉积物的方法
公开(公告)号：US5250097A
公开(公告)日：1993-10-05
申请号：US894426
申请日：1992-06-05
申请人： Tatsuhiko Saitoh , Toshio Danzuka
发明人： Tatsuhiko Saitoh , Toshio Danzuka
IPC分类号： C03B8/04 , C03B20/00 , C03B37/014 , C03B37/018 , G02B6/00
CPC分类号： C03B37/0144 , C03B37/01406 , Y02P40/57
摘要： A glass soot deposit is produced at a high deposition rate by blowing a gaseous glass-forming raw material together with a fuel gas from a combustion burner in a closed muffle, hydrolyzing the glass-forming raw material in a flame to generate glass soot, and depositing the glass soot on a tip end or a peripheral surface of a starting member which is rotated to form a glass soot deposit, in which a lowest surface temperature of the muffle tube is maintained at 50.degree. C. or higher and an average surface temperature of the muffle is maintained in a range between 50.degree. C. and 150.degree. C., whereby corrosion of the muffle is prevented.

9. 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。

10. 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。

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