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61. 发明专利

JPS61117130A Preparation of parent material for optical fiber 失效
标题翻译：光纤原料的制备
公开(公告)号：JPS61117130A
公开(公告)日：1986-06-04
申请号：JP23918784
申请日：1984-11-13
申请人： Hitachi Cable Ltd
发明人： NIIZAWA MASAHARU , YABUKI TSUTOMU , NARITA YOSHIHIRO
IPC分类号： G02B6/00 , C03B37/014 , C03B37/018
CPC分类号： C03B37/0142 , C03B2207/62 , C03B2207/66
摘要： PURPOSE:To stabilize transmission characteristics in the longitudinal direction and to improve the reproducibility in the VAD process by fixing a target for forming a porous parent material and moving a burner downward while revolving. CONSTITUTION:Gaseous raw materials such as SiCl4, GeCl4, etc. are allowed to react in the oxyhydrogen flame of a burner 8, and a porous parent material 3 is formed by depositing generated fine glass particles to the tip of a target I fixed on a vibration isolating bed. During the continuation of the deposition of the glass particles, the burner 8 provided below the target 1 is moved downward successively as it is revolved, and the parent material 3 is deposited on the target 1.
摘要翻译：目的：通过固定用于形成多孔母材的目标并在旋转时向下移动燃烧器来稳定纵向的传输特性并提高VAD工艺中的再现性。构成：允许气体原料如SiCl 4，GeCl 4等在燃烧器8的氢氧焰中反应，并且通过将生成的细玻璃颗粒沉积到固定在隔振床在玻璃颗粒的沉积继续期间，设置在靶1下方的燃烧器8在被旋转的状态下依次向下移动，母材3沉积在靶1上。

62. 发明专利

JPS6186438A Manufacture of optical fiber base material 失效
标题翻译：光纤基材的制造
公开(公告)号：JPS6186438A
公开(公告)日：1986-05-01
申请号：JP20766284
申请日：1984-10-03
申请人： Hitachi Cable Ltd
发明人： NIIZAWA MASAHARU , YABUKI TSUTOMU , NARITA YOSHIHIRO
IPC分类号： G02B6/00 , C03B37/014 , C03B37/018
CPC分类号： C03B37/01413 , C03B37/0142 , C03B2201/28 , C03B2201/31 , C03B2203/26 , C03B2207/06 , C03B2207/20 , C03B2207/22 , C03B2207/36 , C03B2207/70
摘要： PURPOSE:To improve the reproducibility of band characteristics of a multi-mold graded type optical fiber and the yield of broad band fiber by fluctuating periodically the flow rate of inert gas in case of manufacturing the optical fiber base material by a gas phase axial accumulation method. CONSTITUTION:Gaseous raw material such as silicon chloride plus germanium chloride, gaseous fuel such as oxygen plus hydrogen and inert gas (e.g. N2) for controlling reaction and for controlling an accumulation state are fed into a quartz pipe burner 8 and gaseous raw material is allowed to react in the oxyhydrogen flame to produce the fine glass powder and the glass powder is accumulated on a tip of a target 1 to form a porous base material 3. In this case, the flow rate of inert gas is periodically fluctuated and the accumulating conditions of the glass powder of the tip of the target 1 are changed and thereby the distribution index alpha of refractive index of the optical fiber base material after the vitrification is changed in the lengthwise direction. Then the obtained porous base material l3 is heated and vitrified to obtain the aimed optical fiber base material.
摘要翻译：目的：通过气相轴向积累法制造光纤基体材料，通过周期性波动来提高多模渐变型光纤带特性的再现性和宽带光纤的产量。构成：用于控制反应和控制积聚状态的气态原料如氯化硅加氯化锗，气体燃料如氧加氢气和惰性气体（例如N2）进料到石英管燃烧器8中，允许气态原料在氢氧焰中反应以产生细玻璃粉末，并且玻璃粉末积聚在靶1的尖端上以形成多孔基材3.在这种情况下，惰性气体的流量周期性地变动，累积条件改变目标1的尖端的玻璃粉末，从而使玻璃化后的光纤基材的折射率的分布指数α在长度方向上变化。然后将得到的多孔基材13加热玻璃化，得到目标光纤基材。

63. 发明专利

JPS6183641A Production of parent material of optical fiber 失效
标题翻译：光纤原料的生产
公开(公告)号：JPS6183641A
公开(公告)日：1986-04-28
申请号：JP20521384
申请日：1984-09-28
申请人： Hitachi Cable Ltd
发明人： NIIZAWA MASAHARU , YABUKI TSUTOMU , NARITA YOSHIHIRO
IPC分类号： C03B37/018 , C03B37/014 , G02B6/00
CPC分类号： C03B37/01486 , C03B37/0142 , C03B2203/26 , C03B2207/36 , C03B2207/70
摘要： PURPOSE:In production of a parent material of optical fiber by vapor phase axial deposition method in high yield in high reproducibility, to produce a parent material for optical fiber of multimode graded type wide-band, by changing periodically pulling speed of target. CONSTITUTION:Glass fine powder formed by flame hydrolysis method from the quartz tube burner 8 is blown and piled upon the target 1 which is pulled up the pulling device 13 while being rotated, to form the porous parent material 3 for optical fiber (the infrared temperature measuring device 6 to control the flow rate measuring device 7 for oxygen and hydrogen gases, and the outer diameter measuring device 11 to control the pulling device 13). The pulling device is provided with the oscillator 12, and electrical signal from the outer diameter measuring device 11 is varied periodically in a given range by the electrical signal, to change piling conditions for glass fine powder.
摘要翻译：目的：通过气相轴向沉积法以高产率高重现性生产光纤母体材料，通过改变定期拉伸目标的速度，生产多模分级宽带光纤的母材。构成：通过石英管燃烧器8通过火焰水解法形成的玻璃细粉末被吹送并堆放在被拉动的牵引装置13上转动的目标1上，以形成用于光纤的多孔母材3（红外温度测量装置6以控制用于氧气和氢气的流量测量装置7，以及外径测量装置11以控制牵引装置13）。拉动装置设置有振荡器12，并且来自外径测量装置11的电信号通过电信号在给定范围内周期性地变化，以改变玻璃细粉末的打桩条件。

64. 发明专利

JPS6151114A Manufacture of optical fiber cable 失效
标题翻译：光纤电缆的制造
公开(公告)号：JPS6151114A
公开(公告)日：1986-03-13
申请号：JP17376284
申请日：1984-08-21
申请人： Hitachi Cable Ltd
发明人： NIIZAWA MASAHARU , NARITA YOSHIHIRO
IPC分类号： H01B13/02 , G02B6/44
摘要： PURPOSE: To increase the manufacture speed greatly and to make the optical fiber cable long by stranding an optica fiber around a tension member in alternate directions of S-Z stranding and adhering the member and fibers together only at inversion parts.
CONSTITUTION: The tension member 2 and optical fiber 1 are sent out in parallel and the optical fiber 1 is arranged around the member 2 across a batten plate. Then while the member 2 and fiber 1 are drawn at a constant speed, the batten plate is rotated alternately is synchronism with the drawing operation to invert the stranding direction of S-Z stranding ar every pitch, and the member 2 and fiber 1 are fixed with an adhesive 3 only at the inversion parts. Consequently, characteristics more than those of a normal stranded cable are obtained and the fiber 11 is not rotated around the member 2, so the speed is increased greatly. Further, there is no restriction of bobbin size, so the length of the cable is extended.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：大大提高制造速度，并通过在S-Z绞合的交替方向上将光纤纤维缠绕在张力构件上而使光纤电缆变长，并将构件和纤维仅在反转部分粘合在一起。构成：张力构件2和光纤1平行地输出，光纤1围绕构件2布置在板条板上。然后当构件2和纤维1以恒定的速度被拉伸时，板条交替地旋转地与拉伸操作同步，以使每个间距反转SZ绞合的绞合方向，并且将构件2和纤维1固定在粘合剂3仅在反转部分。因此，获得比普通绞合电缆更多的特性，并且纤维11不会围绕构件2旋转，因此速度大大增加。此外，线圈尺寸没有限制，因此电缆的长度延长。

65. 发明专利

JPS60260012A MANUFACTURE OF MULTICORE OPTICAL FIBER CABLE 失效
公开(公告)号：JPS60260012A
公开(公告)日：1985-12-23
申请号：JP11624284
申请日：1984-06-06
申请人： HITACHI CABLE
发明人： MIURA AKIRA , NARITA YOSHIHIRO
IPC分类号： G02B6/44 , H01B13/00
摘要： PURPOSE:To improve the productivity by SZ-twisting plural optical fibers around a tension member, affixing an upper winding tape to the outside of the SZ- twisted optical fiber, and affixing a sheath to the outside periphery of the upper winding tape. CONSTITUTION:Optical fibers 2, 2... are drawn out of bobbins 6, 6..., and thereafter, passed through a butt strap 7, the optical fibers 2, 2... are brought to SZ- twist in a part of a rotary head 8, and a twist holding tape 9 is wound around its outside. Thereafter, an upper winding tape 10 having heat resisting property is affixed vertically to the outside of a cable core, and also a sheath is extruded and covered on its outside periphery by a part of an extruding machine 11. In this way, the productivity can be improved by executing a manufacturing process of the cable core and a sheath extruding and covering process by continuous work.

66. 发明专利

JPS60221334A FEEDING DEVICE OF RAW MATERIAL GAS FOR PREPARATION OF OPTICAL FIBER PARENT MATERIAL 失效
公开(公告)号：JPS60221334A
公开(公告)日：1985-11-06
申请号：JP7706784
申请日：1984-04-17
申请人： HITACHI CABLE
发明人： NIIZAWA MASAHARU , YABUKI TSUTOMU , NARITA YOSHIHIRO
IPC分类号： C03B37/018 , B01J4/00 , B01J4/02 , C03B37/014 , G02B6/00
摘要： PURPOSE:To obtain a parent material for optical fiber having superior characteristics with sufficient reproducibility by stabilizing feed of the raw materials by installing a heating device of carrier gas and tanks for the raw materials and feeding devices for the gaseous raw materials in a thermostat. CONSTITUTION:After heating carrier gas introduced from a gas introducing pipe 1 by a heating device 3 installed in a thermostat 11, the gas is introduced into a bubbling device 6 in a raw material tank 4, and the gas is bubbled to evaporate the liquid raw material 5, and prepd. gaseous mixture 7 is fed to a burner in the reaction zone of the prepg. device of the parent material of the optical fiber through a feed controlling device 2 of the raw material gas. By this method, the raw material is supplied stably even if a large amt. of the raw material for the glass is supplied, and a parent material for optical fiber having superior characteristics is obtd.

67. 发明专利

JPS60103045A METHOD FOR DRAWING BASE MATERIAL FOR OPTICAL FIBER 失效
公开(公告)号：JPS60103045A
公开(公告)日：1985-06-07
申请号：JP21220883
申请日：1983-11-10
申请人： HITACHI CABLE
发明人： NARITA YOSHIHIRO , YAMAGIWA TOSHIYUKI
IPC分类号： G02B6/00 , C03B37/012
摘要： PURPOSE:To obtain easily a base material for an optical fiber having a uniform outside diameter by setting a base material for an optical fiber in a heat resistant jig, attaching both ends of the base material to chucks, heating the base material with a burner through the jig, and moving the jig to draw the base material. CONSTITUTION:A porous base material manufactured by a vapor axial deposition method is sintered in an electric furnace to form a transparent base material 2 for an optical fiber. The base material 2 is set in a die-shaped heat resistant jig 7 of a heat resistant material having a prescribed inside diameter, and both ends of the base material 2 in the longitudinal direction are attached to the chuck 5 of the fixed part of a glass lathe and the chuck 6 of the moving part so that the jig 7 is present on the fixed part side. The chucks 5, 6 are rotated, the base material 2 is softened by heating with a burner 4 through the jig 7, and the jig 7, together with the chuck 6, is moved in the direction of arrows to draw the base material 2 to a prescribed outside diameter.

68. 发明专利

JPS5257263A DEVICE FOR MANUFACTURING FOAMED MATERIAL 失效
公开(公告)号：JPS5257263A
公开(公告)日：1977-05-11
申请号：JP13273575
申请日：1975-11-05
申请人： HITACHI CABLE
发明人： NARITA YOSHIHIRO , OOKUBO ATOU , HIROMITSU SHIYOUJIROU
IPC分类号： H01B13/14 , B29B7/00 , B29C47/00 , B29C47/02 , B29C47/10 , B29C48/445

69. 发明专利

JP2004015927A Fillet cutter for cable with fillet 有权
公开(公告)号：JP2004015927A
公开(公告)日：2004-01-15
申请号：JP2002167093
申请日：2002-06-07
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： YONEZAWA TSUTOMU , IMAHASHI MASAHIRO , NARITA YOSHIHIRO , OHASHI MAMORU , HORIGUCHI TADASHI
IPC分类号： B26B27/00 , H02G1/12
摘要： PROBLEM TO BE SOLVED: To provide a fillet cutter which can cut off a fillet easily and properly and is high in safety, and can cut off upper and lower fillets at the same time. SOLUTION: This fillet cutter is equipped with split block bodies 2a and 2b which have inner faces made in roughly the same form as the outline of a cable 53 with a fillet and are made in two-piece structures so as to catch the cable 53 with fillets, a coupling member 6 which couples the fellow divided bodies 2a and 2b capably of changing the mutual space, a cutting edge 16 whose tip edge advances to and retreats from the inside of the divided blocks 2a and 2b, an energizing means 25 which energizes the cutting edge 16 in the advancing direction into the divided bodies 2a and 2b, and a quantity-of-bite adjusting means 30 which adjusts the quantity of advance into the divided block bodies 2a and 2b of the tip edge 21 by regulating the turn range of the cutting edge 16. COPYRIGHT: (C)2004,JPO

70. 发明专利

JPH1048443A POLYMER WAVEGUIDE AND ITS PRODUCTION 失效
公开(公告)号：JPH1048443A
公开(公告)日：1998-02-20
申请号：JP20056296
申请日：1996-07-30
申请人： HITACHI CABLE
发明人： IMOTO KATSUYUKI , NARITA YOSHIHIRO
IPC分类号： G02B6/122 , G02B6/13
摘要： PROBLEM TO BE SOLVED: To obtain a waveguide which has a low loss, a flat upper surface of a clad layer, high dimensional accuracy and a small thickness of a substrate, and can be produced in a simple processes, by forming a core layer which is not to be irradiated with UV rays and forming upper and lower clad layers to be irradiated with UV rays on a buffer layer on a substrate. SOLUTION: The waveguide consists of a buffer layer 32 on a substrate 31, a polymer core layer 33 having an almost rectangular cross section on the buffer layer, a lower clad layer 34 formed on both sides of the core layer 33, and an upper clad layer 35 which covers the upper faces of the core layer 33 and the clad layer 34. The core layer 33 and lower clad layer 34 consist of a polymer material which decreases the refractive index by irradiation of UV rays. The core layer 33 is not irradiated with UV rays. The lower clad layer 34 consists of a polymer material which has been irradiated with UV rays and photoleached. Since the refractive index of the exposed part to LJV rays decreases, the exposed part to UV rays can be used as the clad layer.

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