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81. 发明专利

JP2006243228A Method of forming optical waveguide 有权
标题翻译：形成光波导的方法
公开(公告)号：JP2006243228A
公开(公告)日：2006-09-14
申请号：JP2005057169
申请日：2005-03-02
申请人： Hitachi Cable Ltd , Toyota Gakuen , 学校法人トヨタ学園 , 日立電線株式会社
发明人： HIROSE TOMOHIRO , SAITO KAZUYA , IKUSHIMA AKIRA , OSONO KAZUMASA , KUROSAWA YOSHINORI
IPC分类号： G02B6/13
摘要： PROBLEM TO BE SOLVED: To provide a method of forming optical waveguide by which a manufacturing process is simplified and an optical waveguide having low loss is formed. SOLUTION: The method of forming the optical waveguide for forming the optical waveguide 15 is composed of a high refractive index core 17 and a low refractive index clad 16 on a glass substrate 11. A silica glass thin film 12 having a refractive index higher than that of the silica glass substrate 11 is formed on the silica glass substrate 11 by using a physical vapor deposition method, an optional part of the silica glass thin film 12 is locally heated, the heated part is formed on the clad 16, and unheated part is formed on the core 17. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种形成光波导的方法，通过该方法简化制造工艺，并且形成具有低损耗的光波导。解决方案：形成用于形成光波导15的光波导的方法由玻璃基板11上的高折射率芯17和低折射率包层16构成。具有折射率的石英玻璃薄膜12 通过使用物理气相沉积法在石英玻璃基板11上形成高于石英玻璃基板11的玻璃基板11，局部加热二氧化硅玻璃薄膜12的任意部分，在包层16上形成加热部，未加热部分形成在芯部17上。版权所有（C）2006，JPO＆NCIPI

82. 发明专利

JP2006240930A Optical fiber drawing furnace and method of drawing optical fiber 有权
标题翻译：光纤绘图炉和绘制光纤的方法
公开(公告)号：JP2006240930A
公开(公告)日：2006-09-14
申请号：JP2005060385
申请日：2005-03-04
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： SHIROSAWA TATSUYA , NISHIO TOMOYUKI , KUROSAWA YOSHINORI
IPC分类号： C03B37/029 , G02B6/00
CPC分类号： C03B37/029 , C03B2205/82 , C03B2205/83
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber preform, optical fiber, furnace tube and an optical fiber drawing furnace free from the deposition of dust on an exhaust path. SOLUTION: The optical fiber drawing furnace 10 is used for drawing the optical fiber preform P heated and melted in a core 13 while purging the inside of the core 13 with inert gases G1, G2 and is provided with the furnace tube 11 forming the core 13, an inner furnace tube 12 provided in the lower part of the furnace tube 11 and an exhaust path-forming member 20 provided to close the gap between the furnace tube 11 and the inner furnace tube 12 and composed of a heat insulating material. The exhaust path-forming member 20 has the exhaust path 23 for exhausting the inert gases G1, G2 after purging the inside of the core 13 to the outside. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种光纤预制棒，光纤，炉管和光纤拉丝炉，不会在排气路径上沉积灰尘。解决方案：光纤拉丝炉10用于拉伸在芯13中加热和熔化的光纤预制棒P，同时用惰性气体G1，G2清洗芯13的内部，并且设置有形成芯13，设置在炉管11的下部的内炉管12和排气路形成构件20，其设置成封闭炉管11和内炉管12之间的间隙，并由绝热材料。排气路径形成构件20具有用于在将芯13的内部清除到外部之后排出惰性气体G1，G2的排气路径23。版权所有（C）2006，JPO＆NCIPI

83. 发明专利

JP2005345840A Boot for mt connector 审中-公开
标题翻译：引导MT连接器
公开(公告)号：JP2005345840A
公开(公告)日：2005-12-15
申请号：JP2004166570
申请日：2004-06-04
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： KUROSAWA YOSHINORI , MURAKAMI KAZUYA , ODAKA YOSHIFUMI , NAKATANI YOSHIHIRO , SATO TAKAHIRO
IPC分类号： G02B6/40
摘要： PROBLEM TO BE SOLVED: To provide a boot for an MT connector, in which the MT connector for a coated optical fiber having the conventional outer diameter of 0.25mm can be used for an optical fiber tape unit that uses a coated optical fiber, having a large diameter that is equal to or greater than the outside diameter of 0.25mm.
SOLUTION: The boot for the MT connector is used to mount the optical fiber tape unit on the MT connector and has a tapered section (14) which changes the array pitch of the coated optical fiber.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供用于MT连接器的引导件，其中用于具有常规外径为0.25mm的涂覆光纤的MT连接器可以用于使用涂覆光纤的光纤带单元具有等于或大于0.25mm外径的大直径。
解决方案：MT连接器的引导件用于将光纤带单元安装在MT连接器上，并具有改变涂覆光纤的阵列间距的锥形部分（14）。版权所有（C）2006，JPO＆NCIPI

84. 发明专利

JP2005247620A Method of manufacturing photonic crystal fiber 审中-公开
标题翻译：制造光子晶体纤维的方法
公开(公告)号：JP2005247620A
公开(公告)日：2005-09-15
申请号：JP2004059119
申请日：2004-03-03
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , YO HEI , OSONO KAZUMASA , KUROSAWA YOSHINORI
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/027
CPC分类号： C03B37/0122 , C03B37/02781 , C03B2203/14 , C03B2203/42 , C03B2205/10
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a photonic crystal fiber having small transmission loss by preventing the invasion of OH group to the inside wall of a fine diameter quartz tube. SOLUTION: In the method of manufacturing the photonic crystal fiber 10 by bundling a plurality of the fine diameter quartz tubes each having the same diameter and sealed at one side around a fine diameter quartz rod 12 as the center so that sealed ends 14 of the fine diameter quartz tubes and opened ends thereof exist respectively in the same side to form a preform for the photonic crystal fiber and drawing from the opened end 15 side, air in the fine diameter quartz tubes and a quartz jacket tube 16 is replaced by an inert gas such as Ar or N 2 before drawing. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决问题：提供通过防止OH基侵入细径石英管的内壁而制造具有小的透射损失的光子晶体光纤的方法。解决方案：在制造光子晶体光纤10的方法中，通过将具有相同直径的多个细小直径石英管捆扎在一侧，以细径石英棒12为中心密封，使得密封端14 的细直径石英管和开口端分别存在于同一侧以形成用于光子晶体纤维的预成型件并从开口端15侧拉出，细直径石英管中的空气和石英套管16被替换为惰性气体如Ar或N 2 。版权所有（C）2005，JPO＆NCIPI

85. 发明专利

JP2005084201A Photonic crystal fiber and its manufacturing method 有权
标题翻译：光电晶体纤维及其制造方法
公开(公告)号：JP2005084201A
公开(公告)日：2005-03-31
申请号：JP2003313981
申请日：2003-09-05
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： YO HEI , OSONO KAZUMASA , KUROSAWA YOSHINORI
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/025 , C03B37/027 , G02B6/02 , G02B6/10
CPC分类号： C03B37/01231 , C03B37/0122 , C03B37/02781 , C03B2203/14 , C03B2203/18 , C03B2203/42 , C03B2205/10
摘要： PROBLEM TO BE SOLVED: To provide a photonic crystal fiber in which no fluctuation exists in an external diameter and wavelength dispersion characteristics are varied along the longitudinal direction and to provide its manufacturing method. SOLUTION: A photonic crystal fiber 30 is provided with a core 12 and a plurality of circular openings 14 which are provided on a circumference, whose center is the core 12, with equal intervals and extend along the longitudinal direction. The locations of the circular openings 14 from the fiber center on the fiber cross section are varied along the longitudinal direction. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供其中外径不存在波动的光子晶体光纤，并且波长色散特性沿着纵向方向变化并提供其制造方法。解决方案：光子晶体光纤30设置有芯部12和多个圆形开口14，多个圆形开口14设置在圆周上，其中心是芯部12，具有相等的间隔并沿着纵向方向延伸。纤维横截面上的纤维中心的圆形开口14的位置沿长度方向变化。版权所有（C）2005，JPO＆NCIPI

86. 发明专利

JP2005024848A Splice part of optical fiber and optical fiber splicer 有权
标题翻译：光纤和光纤分离器的部分
公开(公告)号：JP2005024848A
公开(公告)日：2005-01-27
申请号：JP2003189726
申请日：2003-07-01
申请人： Hitachi Cable Ltd , Nippon Telegr & Teleph Corp , 日本電信電話株式会社 , 日立電線株式会社
发明人： KUROSAWA YOSHINORI , OSONO KAZUMASA , TACHIKURA MASAO , KURASHIMA TOSHIO , ARAKI EIJI , HIRAMATSU KATSUMI
IPC分类号： G02B6/24 , G02B6/26
摘要： PROBLEM TO BE SOLVED: To provide a splice part of an optical fiber of which the splice loss is small and the change in temperature characteristic of the splice loss is small, and to provide an optical fiber splicer. SOLUTION: In the splice part 1 of an optical fiber in which an optical fiber 61 with a plurality of pores in the clad 63 around the core 62 is spliced to the other optical fiber 71, the optical fiber 61 is butt-spliced to the other optical fiber via a refractive index matching agent r having a refractive index lower than that of the core 62 at the lowest temperature for practical use. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供接合损耗小并且接头损耗的温度特性变化小的光纤的接合部分，并且提供光纤接合器。解决方案：在光纤的接合部分1中，其中在芯62周围的包层63中具有多个孔的光纤61与另一个光纤71接合，光纤61对接通过折射率低于芯62的折射率匹配剂r在最低温度下实际使用到另一光纤。版权所有（C）2005，JPO＆NCIPI

87. 发明专利

JP2004341298A Optical fiber wiring method 有权
公开(公告)号：JP2004341298A
公开(公告)日：2004-12-02
申请号：JP2003138663
申请日：2003-05-16
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： TACHIKURA MASAO , KUROSAWA YOSHINORI , OMURA KENJI
IPC分类号： G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber wiring method by which communication interference due to intermediate fiber cord separation is eliminated, and utilization efficiency of an optical fiber cable is improved. SOLUTION: In the optical fiber wiring method, since single coated optical fibers of optical fiber ribbons 20, 21 can be accommodated in a single coated optical fiber unit among connecting closures 22-B-1 to 22-B-3 by performing intermediate fiber cord separation at least at one point at least in one of the connecting closures 11-B-1 to 22-B-3, the communication interference due to the intermediate fiber cord separation does not occur, and the utilization efficiency of the optical fiber cable can be improved. COPYRIGHT: (C)2005,JPO&NCIPI

88. 发明专利

JP2004238275A Optical fiber and method for manufacturing the same 审中-公开
公开(公告)号：JP2004238275A
公开(公告)日：2004-08-26
申请号：JP2003154680
申请日：2003-05-30
申请人： Hitachi Cable Ltd , Toyota Gakuen , 学校法人トヨタ学園 , 日立電線株式会社
发明人： SAITO KAZUYA , IKUSHIMA AKIRA , YAMAGUCHI MAKOTO , OSONO KAZUMASA , KUROSAWA YOSHINORI
IPC分类号： G02B6/00 , C03B37/027 , C03C13/04
CPC分类号： C03C13/04
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber with a reduced light scattering loss and to provide a method for manufacturing the same. SOLUTION: Substantial structural relaxation time of a core can be reduced or made equal by reducing the structural relaxation time of a clad by adding an additive, even when the core has the same glass composition as the clad. As a result, it is made possible to reduce a virtual temperature without increasing the fluctuation of a core density since an additive needs not be added to the core, thereby reducing the light scattering loss of an optical fiber. COPYRIGHT: (C)2004,JPO&NCIPI

89. 发明专利

JP2003246651A APPARATUS FOR COATING OPTICAL FIBER AND COATED OPTICAL FIBER MANUFACTURED USING THE SAME 审中-公开
公开(公告)号：JP2003246651A
公开(公告)日：2003-09-02
申请号：JP2002049823
申请日：2002-02-26
申请人： HITACHI CABLE
发明人： OMURA KENJI , KUROSAWA YOSHINORI
IPC分类号： G02B6/44 , C03C25/12
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for coating an optical fiber capable of coating an optical fiber with a uniform coating layer free from unevenness in thickness without generating strain in the optical fiber and to provide a coated optical fiber manufactured using the apparatus. SOLUTION: The apparatus 10 for coating an optical fiber has a bottomed tubular container 11 through which an optical fiber 1 travels at the central part, a nipple 12 disposed as a lid member to the container 11 and having an insertion hole 13 for introducing the traveling optical fiber 1 into the container 11, and a die 14 disposed at the bottom of the container 11 to coat the periphery of the traveling optical fiber 1 with a resin E, wherein an optical fiber introduction section 16 at least partly joined with the die body 15 of the die 14 for coating the periphery of the optical fiber 1 with the resin E is disposed on the upper stream side of the die body 15 in the optical fiber traveling direction and the optical fiber introduction section 16 and the above nipple 12 are fixedly disposed. COPYRIGHT: (C)2003,JPO

90. 发明专利

JP2003171139A OPTICAL FIBER DRAWING FURNACE 审中-公开
公开(公告)号：JP2003171139A
公开(公告)日：2003-06-17
申请号：JP2001367215
申请日：2001-11-30
申请人： HITACHI CABLE
发明人： KUROSAWA YOSHINORI , OMURA KENJI
IPC分类号： G02B6/00 , C03B37/029
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber drawing furnace in which the degradation of a furnace core pipe by oxidation and the deterioration of strength of an optical fiber are prevented by preventing the flow-in of atmospheric air in a furnace core. SOLUTION: In the optical fiber drawing furnace 21 for drawing an optical fiber preform 23 to which a dummy rod 22 is connected in advance, a sheet like heat resistant sealing material 28 for preventing the flow-in of the atmospheric air to the inside of the furnace core 26 by sealing a gap between the optical fiber preform and an optical fiber preform inserting port 27 on the upper part of the furnace core pipe 25 of the drawing furnace 21 is provided in the optical fiber preform inserting port 27, a small chamber 29 covering the sheet like heat resistant sealing material 28 is formed above the optical fiber preform inserting port 27 and a sheet like sealing material 43 for sealing a gap formed between the dummy rod 22 and the optical fiber preform inserting port 35 in the upper part of the small chamber 29 is provided in the dummy rod 22 side of the outside of the small chamber 29. COPYRIGHT: (C)2003,JPO

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