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11. 发明专利

JP2003344699A Optical connector member 审中-公开
标题翻译：光连接器会员
公开(公告)号：JP2003344699A
公开(公告)日：2003-12-03
申请号：JP2002155478
申请日：2002-05-29
申请人： Showa Electric Wire & Cable Co Ltd , 昭和電線電纜株式会社
发明人： MURASE TOMOTAKA , TAKAHASHI YOSHIHIRO , SHIRAISHI KEIKO , KIYOTAKE KOUZOU , TAKAHASHI TORU , ONEDA SUSUMU
IPC分类号： G02B6/36
摘要： PROBLEM TO BE SOLVED: To provide an optical connector member wherein an optical fiber is not broken, lead-in of the optical fiber is small and PC is not separated, because an NSP fiber is arranged, fusion-spliced and connected on a conical part of an ferrule generating stress concentration and the optical fiber removing a plastic resin coating is arranged, fusion-spliced and connected on the edge side of the ferrule to be connected to the ferrule with an adhesive.
SOLUTION: The optical fiber 4 removing the plastic resin coating in the insertion hole 3 of the ferrule 2 and the optical fiber 5 with the plastic resin coating are fusion-spliced, connected, inserted and arranged. The optical fiber 5 with the plastic resin coating is the NSP fiber coated with the thin non- separation high strength resin.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供光纤不断裂的光连接器构件，由于NSP光纤被布置，熔接并连接在一起，所以光纤的引入小并且PC不分离套筒产生应力集中的锥形部分和去除塑料树脂涂层的光纤被布置成熔接并且在套圈的边缘侧连接以用粘合剂连接到套圈。解决方案：将套管2的插入孔3中的塑料树脂涂层和具有塑料树脂涂层的光纤5去除的光纤4熔接，连接，插入和布置。具有塑料树脂涂层的光纤5是涂覆有薄非分离高强度树脂的NSP纤维。版权所有（C）2004，JPO

12. 发明专利

JP2003195128A FIBER FOR LIGHT SIGNAL ATTENUATION 审中-公开
公开(公告)号：JP2003195128A
公开(公告)日：2003-07-09
申请号：JP2001399686
申请日：2001-12-28
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： TANIMOTO HAJIME , MIYAGUCHI KOICHI , NOUCHI KENTARO , YAMAGUCHI MASAMITSU , HOSHINO JUNPEI , MURASE TOMOTAKA , SHIRAISHI KEIKO , NAKAMURA NAOKO , ONEDA SUSUMU
IPC分类号： G02B6/00 , G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a fiber for light signal attenuation which enables fusion splicing connection and connector fitting with good operability even in a field where attenuation level adjustment is made. SOLUTION: The fiber 1 for light signal attenuation having a core 2 to which a dopant attenuating a light signal is added has its clad 3 coated with a non-peeling high-strength resin thin-film layer 4. Further, its outer circumference is coated with a primary coating layer 5 and a secondary coating layer 6 to form a resin coating layer 7. At least one of those layers is colored or a colored layer is provided on the surface of each coating layer. The surface of one of the coating layers is given a marking 8. The marking 8 displays a fiber length or an attenuation quantity. COPYRIGHT: (C)2003,JPO

13. 发明专利

JP2001174664A OPTICAL FIBER ARRAY AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2001174664A
公开(公告)日：2001-06-29
申请号：JP35856899
申请日：1999-12-17
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： KODAMA YOSHINAO , KOMATA TETSUO , WATABE KAZUTAKA , NORO HARUTO , MURASE TOMOTAKA , SHIRAISHI KEIKO
IPC分类号： G02B6/40 , G02B6/26
摘要： PROBLEM TO BE SOLVED: To manufacture at a low cost an optical fiber array for which high precision is required by forming the end surface 12B of optical fiber group arrayed at a prescribed interval. SOLUTION: Optical fibers 12 to which protective coating is applied are stored in respective V shaped grooves 11 of a substrate 10 in which V shaped grooves 11 are arrayed at a prescribed interval. The end parts 12A of respective optical fibers 12 are fixed onto the substrate 10 in the state of being projected from the end edge 10A of the substrate 10. The end parts of the optical fibers are cut so that the projected lengths of the end parts 12A of all optical fibers projected from the end edge of the substrate 10 become equal.

14. 发明专利

JPH09113402A WETTING DETECTION SENSOR AND OPTICAL FIBER USING IT 失效
公开(公告)号：JPH09113402A
公开(公告)日：1997-05-02
申请号：JP26746895
申请日：1995-10-16
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： NAKAMURA HIROSHI , SHIONO TAKEO , ITO MITSUO , TANIMOTO HAJIME , OOSADA KOUJI , SEKI TOSHIKUNI , CHO HARUNARI , SHIRAISHI KEIKO , MURASE TOMOTAKA
IPC分类号： G01M3/38 , G02B6/02 , G02B6/44
摘要： PROBLEM TO BE SOLVED: To obtain a wetting detection sensor by which an optical transmission loss by a cause other than a wetting operation is exclused and by which a wetting position can be detected by a method wherein a plurality of wetting detection fibers in which every water- absorbing swelling layer is formed on every optical fiber core wire in which every coating layer is formed on every optical fiber strand are arranged in parallel and a common coating layer is provided on the outer circumference of every core wire and of the detection fibers. SOLUTION: A water-absorbing welling layer on the outer circumference of an optical fiber core wire is a resin layer which captures moisture in a wetted place and which absorbs the moisture so as to be swollen, a local bend or a microbend is generated in a strand due to a swelling operation, and an optical transmission loss is increased. A hydroxyl group is added to a photocuring resin as the swelling layer, and an epoxy acrylate resin or the like is used as a resin for a common coating layer on the outer circumference of the core wire and of a wetting detection optical fiber. The core wire is manufactured in such a way that the strand is coated with a resin composed mainly of an ultraviolet curing resin so as to be passed through an ultraviolet irradiation apparatus. The swelling layer at the detection fiber absorbs moisture when it is wetted, a side pressure is applied to the strand, the optical transmission loss is increased, the loss is detected so as to be compared, and the loss due to a true wetting operation is detected.

15. 发明专利

JPH08203349A FOAM-INSULATED WIRE 失效
公开(公告)号：JPH08203349A
公开(公告)日：1996-08-09
申请号：JP910295
申请日：1995-01-24
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： MURASE TOMOTAKA , NAKAMURA HIROSHI , SHIONO TAKEO
IPC分类号： H01B3/44 , H01B11/18
摘要： PURPOSE: To provide a foam-insulated wire having fine and uniform gas bubbles by forming a foam insulating layer through the mixing of ethylene propylene rubber in a polyethylene resin. CONSTITUTION: Polyethylene resin of 100 parts by weight with 5 to 25 parts by weight of ethylene propylene rubber mixed therein are used as a resin forming a foam insulating layer. The addition of ethylene propylene rubber to the polyethylene resin increases the melt tension and swelling ratio of the resin and the strength of gas bubble walls, and restrains generation of continuous gas bubbles, thus providing a foaming ratio as high as about 80%. An inert gas for use as a foaming agent should desirably be one kind selected from among nitrogen, argon, carbon dioxide and hydrocarbon gases or a mixture of the gases.

16. 发明专利

JPH07292347A WATER ABSORBING TAPE 失效
公开(公告)号：JPH07292347A
公开(公告)日：1995-11-07
申请号：JP8463694
申请日：1994-04-22
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： NAKAMURA HIROSHI , MURASE TOMOTAKA , SHIONO TAKEO
IPC分类号： B32B5/02 , B32B27/12 , C09K3/10 , G02B6/44 , H01B7/282 , H01B7/28
摘要： PURPOSE:To obtain a water absorbing tape capable of manifesting excellent water absorptivity even in absorbing water from both sides. CONSTITUTION:This water absorbing tape is obtained by forming a water absorbing resin layer 2 consisting essentially of a water absorbing polymeric compound and a binder resin on a substrate 1 comprising a nonwoven fabric sheet and further providing a cover material 3 comprising the nonwoven fabric sheet on the water absorbing resin layer 2. The basis weight of the nonwoven fabric sheets used as the substrate 1 and the cover material 3 of the water absorbing tape is 10-30g/cm .

17. 发明专利

JP2005289769A Method of forming preform rod for photonic crystal fiber 审中-公开
标题翻译：形成光子晶体光纤的方法
公开(公告)号：JP2005289769A
公开(公告)日：2005-10-20
申请号：JP2004110175
申请日：2004-04-02
申请人： Showa Electric Wire & Cable Co Ltd , 昭和電線電纜株式会社
发明人： MURASE TOMOTAKA , FUJITA HITOSHI , MATSUYAMA EIJI , SHIRAISHI KEIKO
IPC分类号： G02B6/00 , C03B37/012 , C03B37/027 , G02B6/032 , G02B6/20
CPC分类号： C03B37/0122 , C03B2203/14 , C03B2203/42
摘要： PROBLEM TO BE SOLVED: To obtain a photonic crystal fiber having stable characteristics without causing the collapse of air holes during the drawing of a preform rod and the disorder of the arrangement of the air holes because the inside diameter of hollow part of the air hole is uniformly kept. SOLUTION: A soot-deposited hollow quartz glass tube 3 for the air holes is formed by depositing the soot 2 around the hollow quartz glass tube 1 for air holes and a quartz glass tube bundle 4 of air holes is formed by bundling a plurality of the soot deposited hollow quartz tubes 3 for air holes around a core member 10 comprising a soot-deposited quartz glass rod. The quartz glass tube bundle 4 is heated to vitrify the soot 2 and to melt-stick and fix the core member 10 and the hollow quartz glass tubes 3 for air hole to each other. After that, the quartz glass tube bundle 4 is drawn to adjust the outside diameter and inserted into a hollow quartz glass tube 5 for a support to form the preform rod for a photonic crystal fiber. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了获得具有稳定特性的光子晶体光纤，在预成型棒的拉拔期间不引起气孔的塌陷，并且由于空气孔的中空部分的内径，气孔均匀保持。解决方案：用于气孔的烟灰沉积的中空石英玻璃管3通过将烟灰2沉积在用于空气孔的中空石英玻璃管1周围而形成，并且通过捆扎气孔形成气泡的石英玻璃管束4 多个烟灰沉积的中空石英管3用于包括烟灰沉积的石英玻璃棒的芯构件10周围的空气孔。将石英玻璃管束4加热以使烟炱2玻璃化并且将芯部件10和用于空气孔的中空石英玻璃管3彼此熔融粘合并固定。之后，拉制石英玻璃管束4以调节外径并插入用于支撑件的中空石英玻璃管5中以形成用于光子晶体纤维的预制棒。版权所有（C）2006，JPO＆NCIPI

18. 发明专利

JP2004205654A Spot size converting optical fiber component and its manufacturing method 审中-公开
公开(公告)号：JP2004205654A
公开(公告)日：2004-07-22
申请号：JP2002372525
申请日：2002-12-24
申请人： Showa Electric Wire & Cable Co Ltd , 昭和電線電纜株式会社
发明人： NAKAMURA NAOKO , SHIRAISHI KEIKO , MURASE TOMOTAKA , ONEDA SUSUMU
IPC分类号： G02B6/36 , G02B6/02 , G02B6/255 , G02B6/26 , G02B6/10
CPC分类号： G02B6/2551 , G02B6/262
摘要： PROBLEM TO BE SOLVED: To provide optical fiber components without requiring high technology in which an optimum spot size converting section is provided and connection loss is not increased even though the components are connected to a conventional optical fiber used in a communication network. SOLUTION: When an optical fiber 1 having a large core diameter and a high Δ optical fiber 2 having a small core diameter are welded, vicinity of a connecting section 3 is heated, the core diameter of a core 2a is enlarged to form a spot size converting section 4 so as to match the spot size of the fiber 1 with the spot size of the high Δ fiber 2, and relative refractive index differences are practically made same. Then, a cut is made for the fiber 1 at an arbitrary position so that the sections 3 and 4 are to be located inside a ferrule 5 and the fiber 1 is arranged to the optical tip surface of the ferrule 5 to realize the optical fiber parts. It is suggested to monitor the connecting loss of the section 3 while enlarging the core diameter of the core 2a. COPYRIGHT: (C)2004,JPO&NCIPI

19. 发明专利

JP2004078092A Coated optical fiber and method for removing coating of this coated optical fiber 有权
公开(公告)号：JP2004078092A
公开(公告)日：2004-03-11
申请号：JP2002241797
申请日：2002-08-22
申请人： Nippon Electric Glass Co Ltd , Nippon Telegr & Teleph Corp , Ntt Advanced Technology Corp , Showa Electric Wire & Cable Co Ltd , エヌ・ティ・ティ・アドバンステクノロジ株式会社 , 日本電信電話株式会社 , 日本電気硝子株式会社 , 昭和電線電纜株式会社
发明人： SHIRAISHI KEIKO , MURASE TOMOTAKA , NAKAMURA NAOKO , ONEDA SUSUMU , NAGASE AKIRA , YANAGI SHUICHI , IWANO SHINICHI , MIYAKE YASUYO , TAKEUCHI HIROKAZU , FUNABIKI NOBUO
IPC分类号： G02B6/24 , G02B6/00 , G02B6/44
CPC分类号： G02B6/02395 , G02B6/245
摘要： PROBLEM TO BE SOLVED: To provide a coated optical fiber which can be removed of coatings for a long length without damaging the outside surface of an optical fiber and has no possibility of making the waste of coating resins remain on the surface of the optical fiber, and to provide a method for removing the coatings of the coated optical fiber. SOLUTION: The coated optical fiber has the optical fiber 3 having a core 1 and clad 2 essentially consisting of quartz glass and a primary coating layer 4 and secondary coating layer 5 successively disposed on the outer periphery of the optical fiber 3. Here, the coating layer 4 is formed to a thickness of 60 to 200 μm. Also,the coating layer 4 is formed of such resin that the coating layer 4 swells (rate of swelling: 5 to 150%) when the coating layer is immersed for about 30 minutes in an organic solvent. The coating layer 5 is formed of a resin of 100 to 1,500 MPa in Young's modulus in order to remove the same in a cylindrical form. Also, the coating layer is formed to a thickness of 20 to 30 μm. COPYRIGHT: (C)2004,JPO

20. 发明专利

JP2002014235A METHOD FOR CUTTING COATED OPTICAL FIBER RIBBON AND CUTTER THEREFOR 失效
公开(公告)号：JP2002014235A
公开(公告)日：2002-01-18
申请号：JP2000197773
申请日：2000-06-30
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： SHIRAISHI KEIKO , SAKAKIBARA MASAKI , MURASE TOMOTAKA
IPC分类号： G02B6/24 , B26F3/00 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide a method for cutting a coated optical fiber ribbon and a lightweight and easy carrying cutter therefor by which the coated optical fiber ribbon is surely cut into uniform length and cutting work is done safely compared to the case with a conventional manually operated or commercially available tool. SOLUTION: In the method for cutting the coated optical fiber ribbon and the cutter thereof, the coated optical fiber ribbon 3 is arranged between a member 1 having a projected part and a member 2 having a recessed part, the projected part 4 of the member 1 having the projected part is fitted into the recessed part 5 of the member 2 having the recessed part, and the coated optical fiber ribbon is cut by imparting a bent out less than critical strength to the coated optical fiber ribbon.

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