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1. 发明授权

US5877027A Method for the analysis of impurity contents in silicon dioxide 失效
标题翻译：二氧化硅杂质含量分析方法
公开(公告)号：US5877027A
公开(公告)日：1999-03-02
申请号：US918133
申请日：1997-08-27
申请人： Katsuhiko Kemmochi , Kiyotaka Maekawa , Chuzaemon Tsuji , Manabu Saitou , Hiroyuki Miyazawa , Hiroyuki Watanabe
发明人： Katsuhiko Kemmochi , Kiyotaka Maekawa , Chuzaemon Tsuji , Manabu Saitou , Hiroyuki Miyazawa , Hiroyuki Watanabe
IPC分类号： G01N21/73 , G01N1/00 , G01N1/28 , G01N1/40 , G01N27/26 , G01N33/00 , G01N33/20
CPC分类号： G01N33/20 , G01N1/4044 , G01N2033/0095 , Y10T436/20 , Y10T436/25125
摘要： An analytical method for the quantitative determination of the impurities in silicon dioxide by which trace amounts of hardly soluble impurities contained in silicon dioxide can be reliably decomposed and converted into a solution so that the contents of all of the impurities contained in silicon dioxide or, in particular, zirconium in a natural quartz powder can be accurately determined. Silicon dioxide is decomposed with hydrofluoric acid or an acid mixture of hydrofluoric acid and another inorganic acid to give a decomposition solution which is, as such or after admixture with another inorganic acid, subjected to evaporation to dryness and the residue is heated to cause fusion with addition of a salt or hydroxide of an alkali metal followed by dissolution of the salt or hydroxide of an alkali metal with pure water or with an aqueous solution of an inorganic acid to give an aqueous solution which is subjected to quantitative analysis of the impurities therein.
摘要翻译：用于定量测定二氧化硅中的杂质的分析方法，其中二氧化硅中含有微量难溶的杂质可以被可靠地分解并转化成溶液，使得二氧化硅中所含的所有杂质的含量，特别地，可以精确地测定天然石英粉中的锆。二氧化硅用氢氟酸或氢氟酸与其他无机酸的酸性混合物分解，得到分解溶液，该分解溶液与其它无机酸混合后进行蒸发干燥，并将残余物加热至与加入碱金属的盐或氢氧化物，然后用纯水或无机酸的水溶液溶解碱金属的盐或氢氧化物，得到对其中的杂质进行定量分析的水溶液。

2. 发明授权

US5968259A High-purity quartz glass and method for the preparation thereof 失效
标题翻译：高纯石英玻璃及其制备方法
公开(公告)号：US5968259A
公开(公告)日：1999-10-19
申请号：US917933
申请日：1997-08-27
申请人： Katsuhiko Kemmochi , Hiroyuki Miyazawa , Hiroyuki Watanabe , Kiyotaka Maekawa , Chuzaemon Tsuji , Manabu Saitou
发明人： Katsuhiko Kemmochi , Hiroyuki Miyazawa , Hiroyuki Watanabe , Kiyotaka Maekawa , Chuzaemon Tsuji , Manabu Saitou
IPC分类号： C03C1/00 , C03C3/06 , C30B15/10 , C30B35/00 , C30B29/18
CPC分类号： C03C3/06 , C03C1/006 , C30B15/10 , C30B35/002 , C03C2201/02 , C03C2203/10 , Y10T29/40
摘要： Provided are high-purity quartz glass having a high purity, in particular, with little zirconium (Zr) and manufactured at low costs from natural quartz as the starting material and a method for the preparation thereof. High-purity quartz glass is manufactured, in a method for the preparation of natural quartz glass which is prepared by subjecting crystalline natural quartz to fusion by heating, in conducting refining of the starting material of the crystalline natural quartz by successively practicing a combination of at least one unit refining procedure, in a procedure in which a portion of the starting quartz after practicing the specified unit refining procedure is taken by sampling for analysis, the same is decomposed with hydrofluoric acid or an acid mixture of hydrofluoric acid and another inorganic acid, the decomposition solution is subjected to evaporation to dryness either as such or after addition of another inorganic acid, the residue is melted by heating with admixture of a salt or hydroxide of an alkali metal, the salt or hydroxide of the alkali metal is then dissolved in an aqueous solution of an inorganic acid or in pure water, the solution is subjected to quantitative analysis for the impurities therein to determine the contents of impurities in the crystalline natural quartz and the refined crystalline natural quartz, of which the content of impurities has been found to be lower than a specified value, is subjected to fusion by heating as a starting material to prepare high-purity quartz glass.
摘要翻译：提供了具有高纯度的高纯度石英玻璃，特别是少量锆（Zr），并以天然石英作为起始原料以低成本制造，以及其制备方法。制造高纯度石英玻璃的方法中，天然石英玻璃的制备方法是将结晶天然石英通过加热进行熔融制备，在通过连续地实施在至少一个单元精制程序，在通过取样进行分析之后，通过取样进行一部分实施了规定的单元精炼处理后的起始石英的一部分，同时用氢氟酸或氢氟酸与其它无机酸的酸混合物分解，将分解溶液按照本身或加入另一种无机酸进行蒸发干燥后，通过用碱金属的盐或氢氧化物的混合物加热将残余物熔化，然后将碱金属的盐或氢氧化物溶于无机酸的水溶液或纯水中，对该溶液进行定量分析 e杂质以确定结晶天然石英中的杂质含量和发现杂质含量低于规定值的精制结晶天然石英通过加热作为原料进行熔融以制备高纯石英玻璃。

3. 发明授权

US07866189B2 Dehydration-sintering furnace, a manufacturing method of an optical fiber preform utilizing the furnace and an optical fiber preform manufactured by the method 有权
标题翻译：脱水烧结炉，利用该炉的光纤预制件的制造方法和通过该方法制造的光纤预制件
公开(公告)号：US07866189B2
公开(公告)日：2011-01-11
申请号：US11004966
申请日：2004-12-07
申请人： Manabu Saitou , Naritoshi Yamada
发明人： Manabu Saitou , Naritoshi Yamada
IPC分类号： C03B37/075
CPC分类号： C03B37/0146
摘要： A dehydration-sintering furnace for dehydrating and/or sintering an optical fiber preform for use in production of an optical fiber includes a muffle for accommodating the optical fiber preform, a heater for heating the muffle, and a pressure fluctuation absorbing apparatus connected to the muffle. Since the pressure fluctuation absorbing apparatus is thermally insulated from a room temperature atmosphere or heated, vapor produced in a dehydration-sintering process is prevented from condensing (liquefying) in a pressure fluctuation absorbing apparatus, thereby preventing reduced dehydration effectiveness in the muffle and reduced quality of the optical fiber preform.
摘要翻译：用于生产光纤的用于脱水和/或烧结光纤预制棒的脱水烧结炉包括用于容纳光纤预制件的马弗管，用于加热马弗管的加热器和连接到马弗管的压力波动吸收装置。由于压力波动吸收装置与室温气氛隔热或加热，因此防止在脱水烧结过程中产生的蒸气在压力波动吸收装置中冷凝（液化），从而防止马弗炉中的脱水效果降低，质量降低的光纤预制棒。

4. 发明授权

US07849714B2 Dehydration-sintering furnace 有权
标题翻译：脱水烧结炉
公开(公告)号：US07849714B2
公开(公告)日：2010-12-14
申请号：US11004930
申请日：2004-12-07
申请人： Manabu Saitou , Naritoshi Yamada
发明人： Manabu Saitou , Naritoshi Yamada
IPC分类号： C03B37/018
CPC分类号： C03B37/0146
摘要： A dehydration-sintering furnace includes a core tube configured to dehydrate and sinter a porous base material in fabrication of an optical fiber and having an outlet configured to discharge a vapor. The furnace includes a pressure-variation damper connected to the outlet of the core tube. The furnace includes a trap between the core tube and the pressure-variation damper for collecting the vapor.
摘要翻译：脱水烧结炉包括芯管，其配置成在制造光纤时使多孔基材脱水并烧结并且具有排出蒸气的出口。该炉包括连接到芯管的出口的压力变化阻尼器。炉子包括在芯管和用于收集蒸汽的压力变化阻尼器之间的陷阱。

5. 发明申请

US20050274150A1 Optical glass and method for producing the same 有权
标题翻译：光学玻璃及其制造方法
公开(公告)号：US20050274150A1
公开(公告)日：2005-12-15
申请号：US10504876
申请日：2003-02-18
申请人： Kumi Onodera , Manabu Saitou , Masahiro Horikoshi
发明人： Kumi Onodera , Manabu Saitou , Masahiro Horikoshi
IPC分类号： C03B8/04 , C03B20/00 , C03B37/014 , C03B37/018 , C03C3/06
CPC分类号： C03B37/0142 , C03B2207/06 , C03B2207/12 , C03B2207/36 , C03B2207/70 , C03C3/06 , C03C2201/80
摘要： This invention provides a method for manufacturing an optical glass in order to prevent the deterioration of the burner used in the synthesis of glass particles that form the optical glass, and to obtain a stable quality optical glass. In this invention, the number of residual bubbles with a diameter of 0.3 mm and more is 0.005/cm3 or less per unit volume of the optical glass. Such optical glass is obtained by controlling the temperature of an end face of the burner for glass synthesis during the deposition of the glass particles by regulating the relationship of the flow velocity or the flow volume between an inflammable gas and a combustion-supporting gas.
摘要翻译：本发明提供一种制造光学玻璃的方法，以防止在形成光学玻璃的玻璃颗粒的合成中所使用的燃烧器的劣化，并获得稳定质量的光学玻璃。在本发明中，每单位体积的光学玻璃的直径为0.3mm以上的残留气泡的数量为0.005 / cm 3以下。这样的光学玻璃是通过调节在可燃性气体和助燃气体之间的流动速度或流量之间的关系来控制玻璃粒子沉积时的玻璃合成用燃烧器的端面的温度而得到的。

6. 发明申请

US20060225464A1 Method for manufacturing optical fiber preform and burner apparatus for this method for manufacturing optical fiber preform 审中-公开
标题翻译：用于制造光纤预制棒的方法的制造光纤预型件和燃烧器装置的方法
公开(公告)号：US20060225464A1
公开(公告)日：2006-10-12
申请号：US11448186
申请日：2006-06-07
申请人： Manabu Saitou , Masahiro Horikoshi
发明人： Manabu Saitou , Masahiro Horikoshi
IPC分类号： C03B37/07 , C03B37/018
CPC分类号： C03B37/0142 , C03B2207/06 , C03B2207/12 , C03B2207/22 , C03B2207/70
摘要： The present invention provides an optical fiber preform manufacturing method and a burner apparatus employed for this method. In this manufacturing method, when glass particles are synthesized in an oxy-hydrogen flame emitted from a burner to form a porous optical fiber preform by depositing glass particles in the radial direction of a starting member, the relationship between the flow rate vm (m/sec) of a source material gas or a mixed gas of the source material gas and an additive gas discharged from the burner, and the flow rate vs (m/sec) of an inert gas is such that −0.06 vm+1.4≦vs≦−0.02 vm+1.8, and vs≧0.40, while the relationship between the flow volume Vm (l/min) of the source material gas discharged from the burner and the flow volume Vs (l/min) of the inert gas is such that Vs/Vm≦0.2.
摘要翻译：本发明提供了一种用于该方法的光纤预制棒制造方法和燃烧器装置。在该制造方法中，当从燃烧器发射的氧 - 氢火焰中合成玻璃粒子时，通过在起始部件的径向上沉积玻璃粒子来形成多孔光纤预制件，流速vm（m / 秒）源材料气体或来自原料气体和从燃烧器排出的添加剂气体的混合气体，并且惰性气体的流量vs（m / sec）为-0.06vm + 1.4 <= vs 而从燃烧器排出的原料气体的流量Vm（l / min）与惰性气体的流量Vs（l / min）之间的关系为<= -0.02vm + 1.8，vs> = 0.40 是Vs / Vm <= 0.2。

7. 发明申请

US20060096326A1 METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM AND BURNER APPARATUS FOR THIS METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM 有权
标题翻译：制造光纤预制件的方法和用于制造光纤预制件的方法的燃烧器装置
公开(公告)号：US20060096326A1
公开(公告)日：2006-05-11
申请号：US10353279
申请日：2003-01-29
申请人： Manabu Saitou , Masahiro Horikoshi
发明人： Manabu Saitou , Masahiro Horikoshi
IPC分类号： C03B37/018
CPC分类号： C03B37/0142 , C03B2207/06 , C03B2207/12 , C03B2207/22 , C03B2207/70
摘要： The present invention provides an optical fiber preform manufacturing method and a burner apparatus employed for this method. In this manufacturing method, when glass particles are synthesized in an oxy-hydrogen flame emitted from a burner to form a porous optical fiber preform by depositing glass particles in the radial direction of a starting member, the relationship between the flow rate vm (m/sec) of a source material gas or a mixed gas of the source material gas and an additive gas discharged from the burner, and the flow rate vs (m/sec) of an inert gas is such that −0.06 vm+1.4≦vs≦−0.02 vm+1.8, and vs≧0.40, while the relationship between the flow volume Vm (1/min) of the source material gas discharged from the burner and the flow volume Vs (1/min) of the inert gas is such that Vs/Vm≦0.2.
摘要翻译：本发明提供了一种用于该方法的光纤预制棒制造方法和燃烧器装置。在该制造方法中，当从燃烧器发射的氧 - 氢火焰中合成玻璃粒子时，通过在起始部件的径向上沉积玻璃粒子来形成多孔光纤预制件，流速vm（m / 秒）源材料气体或来自原料气体和从燃烧器排出的添加剂气体的混合气体，并且惰性气体的流量vs（m / sec）为-0.06vm + 1.4 <= vs 而从燃烧器排出的原料气体的流量Vm（1 / min）与惰性气体的流量Vs（1 / min）之间的关系为<= -0.02vm + 1.8，vs> = 0.40 是Vs / Vm <= 0.2。

8. 发明授权

US06980723B2 Dispersion-compensating optical fiber and hybrid transmission line 失效
标题翻译：色散补偿光纤和混合传输线
公开(公告)号：US06980723B2
公开(公告)日：2005-12-27
申请号：US10866421
申请日：2004-06-11
申请人： Kazuhiko Aikawa , Manabu Saitou , Takaaki Suzuki , Shoichiro Matsuo , Takashi Suzuki , Koichi Harada , Akira Wada
发明人： Kazuhiko Aikawa , Manabu Saitou , Takaaki Suzuki , Shoichiro Matsuo , Takashi Suzuki , Koichi Harada , Akira Wada
IPC分类号： G02B6/02 , G02B6/22 , G02B6/16
CPC分类号： G02B6/02009 , G02B6/02228 , G02B6/02261 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/03666
摘要： In order to provide a dispersion-compensating optical fiber able to be applied over a broad wavelength band, having a large effective area, and as a result, suppressing the occurrence of non-linear effects, the present invention comprises a dispersion-compensating optical fiber that compensates chromatic dispersion of a 1.3 μm single-mode optical fiber over the entire wavelength range of 1.53-1.63 μm characterized in that, chromatic dispersion at a wavelength of 1.55 μm is −50 ps/nm/km or less, the dispersion slope is negative over the entire wavelength range of 1.53-1.63 μm, a cutoff wavelength is provided at which there is substantially single-mode propagation, bending loss is 30 dB/m or less, effective area is 20 μm2 or more, and the absolute value of chromatic dispersion during compensation of the chromatic dispersion of a 1.3 μm single-mode optical fiber serving as the target of compensation is 0.5 ps/nm/km or less.
摘要翻译：为了提供能够在宽波长带上施加的具有大的有效面积的色散补偿光纤，结果抑制非线性效应的发生，本发明包括色散补偿光纤其在1.53-1.63μm的整个波长范围内补偿1.3μm单模光纤的色散，其特征在于，在1.55μm波长的色散为-50ps / nm / km或更小，色散斜率为在1.53-1.63μm的整个波长范围内为负，提供截止波长，其中基本上单模传播，弯曲损耗为30dB / m以下，有效面积为20mum 2 以上，补偿作为补偿对象的1.3μm单模光纤的色散补偿期间的色散的绝对值为0.5ps / nm / km以下。

9. 发明申请

US20050120753A1 Dehydration-sintering furnace 有权
标题翻译：脱水烧结炉
公开(公告)号：US20050120753A1
公开(公告)日：2005-06-09
申请号：US11004930
申请日：2004-12-07
申请人： Manabu Saitou , Naritoshi Yamada
发明人： Manabu Saitou , Naritoshi Yamada
IPC分类号： C03B37/014 , C03B37/018
CPC分类号： C03B37/0146
摘要： A dehydration-sintering furnace includes a core tube configured to dehydrate and sinter a porous base material in fabrication of an optical fiber and having an outlet configured to discharge a vapor. The furnace includes a pressure-variation damper connected to the outlet of the core tube. The furnace includes a trap between the core tube and the pressure-variation damper for collecting the vapor.
摘要翻译：脱水烧结炉包括芯管，其配置成在制造光纤时使多孔基材脱水并烧结并且具有排出蒸气的出口。该炉包括连接到芯管的出口的压力变化阻尼器。炉子包括在芯管和用于收集蒸汽的压力变化阻尼器之间的陷阱。

10. 发明授权

US06813430B2 Dispersion-compensating optical fiber and hybrid transmission line 有权
公开(公告)号：US06813430B2
公开(公告)日：2004-11-02
申请号：US09795962
申请日：2001-02-28
申请人： Kazuhiko Aikawa , Manabu Saitou , Takaaki Suzuki , Shoichiro Matsuo , Takashi Suzuki , Koichi Harada , Akira Wada
发明人： Kazuhiko Aikawa , Manabu Saitou , Takaaki Suzuki , Shoichiro Matsuo , Takashi Suzuki , Koichi Harada , Akira Wada
IPC分类号： G02B622
CPC分类号： G02B6/02009 , G02B6/02228 , G02B6/02261 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/03666
摘要： In order to provide a dispersion-compensating optical fiber able to be applied over a broad wavelength band, having a large effective area, and as a result, suppressing the occurrence of non-linear effects, the present invention comprises a dispersion-compensating optical fiber that compensates chromatic dispersion of a 1.3 &mgr;m single-mode optical fiber over the entire wavelength range of 1.53-1.63 &mgr;m characterized in that, chromatic dispersion at a wavelength of 1.55 &mgr;m is −50 ps/nm/km or less, the dispersion slope is negative over the entire wavelength range of 1.53-1.63 &mgr;m, a cutoff wavelength is provided at which there is substantially single-mode propagation, bending loss is 30 dB/m or less, effective area is 20 &mgr;m2 or more, and the absolute value of chromatic dispersion during compensation of the chromatic dispersion of a 1.3 &mgr;m single-mode optical fiber serving as the target of compensation is 0.5 ps/nm/km or less.

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