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1. 发明专利

JP2002267897A OPTICAL FIBER CORD 失效
公开(公告)号：JP2002267897A
公开(公告)日：2002-09-18
申请号：JP2001065151
申请日：2001-03-08
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OHASHI KEIJI , HAYANO TETSUO , KATO OSAMU , URUNO SHIGENORI , TACHIKURA MASAO
IPC分类号： G02B6/44 , C08K3/22 , C08K3/32 , C08K5/3492 , C08L83/00 , C08L101/00
摘要： PROBLEM TO BE SOLVED: To prevent decrease in the smoothness of the sheath surface when a material prepared by compounding a powdery non-halogen flame retardant such as ammonium polyphosphate in a non-halogen polymer such as a polyester elastomer is used as the composition to constitute the sheath of an optical fiber cord. SOLUTION: A silicone compound such as silicone-grafted polyethylene is compounded by 0.05 to 2 wt.% to the composition constituting the sheath 3.

2. 发明专利

JP2002267899A OPTICAL FIBER CORD 失效
公开(公告)号：JP2002267899A
公开(公告)日：2002-09-18
申请号：JP2001065153
申请日：2001-03-08
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： KATO OSAMU , OHASHI KEIJI , SUZUKI RYOJI , HAYANO TETSUO , TANAKA FUMIAKI , TACHIKURA MASAO
IPC分类号： G02B6/44 , H01B11/00
摘要： PROBLEM TO BE SOLVED: To prevent increase in the transmission loss even when severe bending with >=90 deg. angle is added to the connector part where a connector is attached to an optical fiber cord. SOLUTION: The bending rigidity of the optical fiber cord is specified to 15 to 35 N.mm . The bending rigidity of the cord is substantially controlled to 15 to 35 N.mm by controlling the elastic modulus of the polymer constituting the sheath 3 of the optical fiber cord to 400 to 1500 MPa.

3. 发明专利

JP2002267898A OPTICAL FIBER CORD 失效
公开(公告)号：JP2002267898A
公开(公告)日：2002-09-18
申请号：JP2001065152
申请日：2001-03-08
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： KATO OSAMU , OHASHI KEIJI , SUZUKI RYOJI , HAYANO TETSUO , TANAKA FUMIAKI , TACHIKURA MASAO
IPC分类号： G02B6/44 , C03C25/10
摘要： PROBLEM TO BE SOLVED: To obtain an optical fiber cord showing no increase in the transmission loss or no degradation in the bending characteristics even when high bending external force is added on the part of the cord where a connector is attached. SOLUTION: The drawing force of the coated optical fiber 1 of the optical fiber cord 4 is specified to

4. 发明专利

JP2002267896A OPTICAL FIBER CORD 失效
公开(公告)号：JP2002267896A
公开(公告)日：2002-09-18
申请号：JP2001065150
申请日：2001-03-08
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OHASHI KEIJI , KATO OSAMU , HAYANO TETSUO , URUNO SHIGENORI , TACHIKURA MASAO
IPC分类号： G02B6/44 , C08K3/32 , C08L67/02 , H01B11/00
摘要： PROBLEM TO BE SOLVED: To prevent generation of bumps on the surface of a sheath when a material prepared by compounding ammonium polyphosphate in a polyester elastomer is used as the resin composition to constitute the sheath of an optical fiber cord. SOLUTION: As for the ammonium polyphosphate, fine powder having

5. 发明专利

JP2001264596A OPTICAL FIBER CORD 失效
公开(公告)号：JP2001264596A
公开(公告)日：2001-09-26
申请号：JP2000073149
申请日：2000-03-15
申请人： FUJIKURA LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： OHASHI KEIJI , KATO OSAMU , SUZUKI RYOJI , URUNO SHIGENORI , TACHIKURA MASAO , TOMITA NOBUO
IPC分类号： G02B6/44 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber cord in which an optical loss due to bending of an optical fiber is suppressed small. SOLUTION: The optical fiber cord 10 consists of a coated optical fiber 5 which is an optical fiber 1 with a coating layer 4 on the circumference, plural reinforcement fibers 6 attached along the coated optical fiber, and a sheath 7 covering these coated optical fiber 5 and reinforcement fibers 6. A drawing force for pulling out the coated optical fiber 5 from the optical fiber cord 10 is designed to be 1-100 gf/30 cm, as a drawing force for pulling out the reinforcement fibers 6 from the cord.

6. 发明专利

JP2003344730A Flame-retardant optical fiber cord and method for manufacturing the same 有权
标题翻译：阻燃光纤线及其制造方法
公开(公告)号：JP2003344730A
公开(公告)日：2003-12-03
申请号：JP2002332343
申请日：2002-11-15
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： HAYANO TETSUO , KATO OSAMU , SHIMOMICHI TAKESHI
IPC分类号： G02B6/44
CPC分类号： G02B6/4436 , G02B6/4402 , G02B6/4403
摘要： PROBLEM TO BE SOLVED: To provide a flame-retardant optical fiber cord which has high flame retardance, preferably has non-halogen flame retardance, is excellent in mechanical properties, such as strength and flexibility (pliability), is relatively simple in a manufacturing method and can sufficiently deal with the trend toward a smaller diameter of the optical fiber cord and to provide a method for manufacturing the same. SOLUTION: The optical fiber cord is successively provided with a fiber buffer layer consisting of high-tension fibers and a plastic sheath on a coated optical fiber or coated optical fiber ribbon, in which the fiber buffer layer is subjected to a flame-resisting treatment by a non-halogen flame retardant in the form of powder. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供具有高阻燃性，优选具有无卤素阻燃性的阻燃光纤线，具有优异的机械性能，例如强度和柔韧性（柔韧性），相对简单一种制造方法，并且可以充分地应对光纤线的较小直径的趋势并提供其制造方法。解决方案：光纤线依次在涂覆的光纤或涂覆的光纤带上设置有由高压纤维和塑料护套组成的纤维缓冲层，其中纤维缓冲层经受阻燃，通过粉末形式的非卤素阻燃剂进行抗蚀剂处理。版权所有（C）2004，JPO

7. 发明专利

JP2003029103A Single-core optical fiber tight cord 审中-公开
标题翻译：单芯光纤灯丝
公开(公告)号：JP2003029103A
公开(公告)日：2003-01-29
申请号：JP2001220324
申请日：2001-07-19
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： KATO OSAMU , SHIMOMICHI TAKESHI , OHASHI KEIJI , SUZUKI RYOJI , ISHIDA KATSUYOSHI , INO ETSUO
IPC分类号： C03C25/42 , G02B6/02 , G02B6/44
CPC分类号： G02B6/4432 , G02B6/4402
摘要： PROBLEM TO BE SOLVED: To provide a single-core optical fiber tight cord which will not cause cracks in a coating, even if bending stress is added and which facilitates the extraction work of the optical fiber.
SOLUTION: An optical fiber 3 is disposed in the center, and the outside of the fiber 3 is solidified with a UV resin 5B, with the addition of a plurality of glass fibers 5A outside the fiber 3 and further the fiber is coated with a UV resin 7 and with a material having superior stretching characteristics and bending characteristics, such as nylon (nylon 12) 9 as the outermost layer. Thus, even if bending stress is repeatedly added to the fiber, the coatings are free from cracks. Because the nylon (nylon 12) 9 has satisfactory slippage property, the work of drawing the fiber can be carried out easily.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：即使添加弯曲应力，也能够提供光纤的提取作业，提供不会引起涂层的裂纹的单芯光纤紧线。解决方案：光纤3设置在中心，纤维3的外侧用紫外线树脂5B固化，在纤维3的外部添加多根玻璃纤维5A，另外，纤维被紫外线树脂7和具有优异的拉伸特性和弯曲特性的材料，如作为最外层的尼龙（尼龙12）9。因此，即使将弯曲应力重复地添加到纤维中，涂层也没有裂缝。由于尼龙（尼龙12）9具有良好的滑动性，所以可以容易地进行拉丝。

8. 发明专利

JP2003029102A Single-core optical fiber cord 审中-公开
标题翻译：单芯光纤线
公开(公告)号：JP2003029102A
公开(公告)日：2003-01-29
申请号：JP2001220309
申请日：2001-07-19
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： KATO OSAMU , OHASHI KEIJI , SHIMOMICHI TAKESHI , SUZUKI RYOJI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide a single-core optical fiber cord, in which handling characteristics can be improved, while maintaining sufficient strength and flame retardant property and without producing toxic gas during combustion.
SOLUTION: The outside diameter of the single-core optical fiber 2 is specified to 0.4 to 0.6 mm and the fiber is coated with UV/Ny coating. The optical fiber is further surrounded by 600 d to 1000 d high-tensile fibers 5 and further coated with a flame retardant nylon resin 7 of 0.2 to 0.3 mm thickness as the outermost layer. Thus, the cord diameter of the single fiber cord 1 is reduced to improve the handling properties and to obtain proper looseness of the optical fiber. Moreover, flame retardant property, required for example, by the horizontal combustion test by JIS can be obtained.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种能够改善处理特性的单芯光纤线，同时保持足够的强度和阻燃性能，并且在燃烧过程中不产生有毒气体。解决方案：单芯光纤2的外径规定为0.4〜0.6mm，纤维被涂覆有UV / Ny涂层。光纤进一步被600d到1000d高拉伸纤维5包覆，并进一步涂覆有0.2至0.3mm厚度的阻燃尼龙树脂7作为最外层。因此，减少单根纤维帘线1的帘线直径以改善操作性能并获得适当的光纤松动。此外，可以获得例如通过JIS的卧式燃烧试验所要求的阻燃性。

9. 发明专利

JP2004029655A Single fiber core for optical fiber cord 审中-公开
公开(公告)号：JP2004029655A
公开(公告)日：2004-01-29
申请号：JP2002189700
申请日：2002-06-28
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： KATO OSAMU , OHASHI KEIJI
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber single core for which a manufacture speed is high by improving the coating of the optical fiber single core mainly used for an optical fiber cord.
SOLUTION: An optical fiber single core is constituted by successively laminating an internal UV resin coating layer and an external UV resin coating layer as protective coating on the outer side of a bare optical fiber, and flame resistant nylon is coated on the outer side of the optical fiber single core. The thickness of the coating of the flame resistant nylon is turned to 0.2 mm-0.3 mm.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003240679A METHOD OF EVALUATION AND TESTING HUMIDITY HEAT RESISTANCE OF OPTICAL FIBER CORE WIRE 审中-公开
公开(公告)号：JP2003240679A
公开(公告)日：2003-08-27
申请号：JP2002043315
申请日：2002-02-20
申请人： FUJIKURA LTD
发明人： KATO OSAMU , HAYANO TETSUO , SHIMOMICHI TAKESHI
IPC分类号： G01M11/00
摘要： PROBLEM TO BE SOLVED: To improve the progress in examining the development by shortening a test period of humidity and heat resistance of an optical fiber single core wire. SOLUTION: This method of evaluating and testing the humidity heat resistance of the optical fiber core wire, comprising measuring the loss of the optical fiber single core wire after an underwater immersion test by immersion of the optical fiber single core wire as a test object into the water for two days, and measuring the loss of the optical fiber single core wire after a drying period of one day for drying the optical fiber single core wire to test and evaluate the humidity heat resistance of the optical fiber core wire. The test period can be shortened from conventional forty-one days to three days. COPYRIGHT: (C)2003,JPO

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