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1. 发明专利

JP2003234026A HIGH PRECISION FOAMED COAXIAL CABLE 审中-公开
公开(公告)号：JP2003234026A
公开(公告)日：2003-08-22
申请号：JP2002033044
申请日：2002-02-08
申请人： HIRAKAWA HEWTECH CORP , ADVANTEST CORP
发明人： YAMAGUCHI TETSUO , IWASAKI MITSUO , ISHIDO TAKAO , KUSAMA TAKAAKI , MURAYAMA SHIGERU , MATSUMURA SHIGERU
IPC分类号： H01B11/18
摘要： PROBLEM TO BE SOLVED: To provide a high precision foamed coaxial cable wherein transmission speed is increased, precision of the characteristic impedance is improved, flexibility of the cable is improved, and prescribed mechanical strength is maintained by reducing the mechanical stress even if the stress such as bending, twisting, pressurizing, sliding, etc., is applied to the cable, with change of characteristic impedance value reduced. SOLUTION: The high precision foamed coaxial cable comprises an internal conductor 1, a foamed insulator 2, an external conductor 3, and a jacket 4, in this order from the inside to the outside. The precision of outside diameter of the internal conductor 1 is equal to or less than 4/1000 mm. The precision of the outside diameter of the foamed insulator 2 is ±0.02 mm, with its shape perfectly round. The precision of outside diameter of the external conductor 3 is ±2% from the outside-diameter central value, with its shape being perfectly round. The precision of the characteristic impedance between the internal conductor 1 and the external conductor 3, with the foamed insulator 2 interposed, is ±1 Ω. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2005339818A High-precision foamed coaxial cable 审中-公开
标题翻译：高精度发泡同轴电缆
公开(公告)号：JP2005339818A
公开(公告)日：2005-12-08
申请号：JP2004153123
申请日：2004-05-24
申请人： Advantest Corp , Hirakawa Hewtech Corp , 平河ヒューテック株式会社 , 株式会社アドバンテスト
发明人： IWASAKI MITSUO , TANAKA KATSUO
IPC分类号： H01B11/18
CPC分类号： H01B11/1847 , H01B11/1839
摘要： PROBLEM TO BE SOLVED: To provide a high-precision foamed coaxial cable of which, the shape of an insulator and an outer conductor is hardly changed even if mechanical stress such as bending, twisting, sliding or the like is added, capable of maintaining outer shape and outer diameter, capable of reducing variation of characteristic impedance value.
SOLUTION: The high-precision foamed coaxial cable comprises an inner conductor 1 made by twisting conductors, an insulator 2 made by winding a porous tape body around the inner conductor 1, and an outer conductor 3 made by braiding a plurality of conductive thin wires at an outer periphery of the insulator 2. An outer shape of the insulator 2 is formed into a perfect circle, and its outer diameter is molded so as to have a contraction rate of 2 to 4% to the diameter just after braiding, and the precision of the characteristic impedance value is made ±1 Ω.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供高精度的发泡同轴电缆，即使添加了诸如弯曲，扭转，滑动等的机械应力，绝缘体和外部导体的形状也几乎不改变，保持外形和外径，能够减小特性阻抗值的变化。解决方案：高精度发泡同轴电缆包括由扭转导体制成的内部导体1，通过将多孔带体缠绕在内部导体1上而制成的绝缘体2和通过编织多个导电材料制成的外部导体3 绝缘子2的外周的细线。绝缘体2的外形形成为正圆，其外径成型为刚刚编织后的直径的2〜4％的收缩率，特性阻抗值的精度为±1Ω。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2003308744A Method for manufacturing precise foam coaxial cable 有权
标题翻译：制造精密同轴电缆的方法
公开(公告)号：JP2003308744A
公开(公告)日：2003-10-31
申请号：JP2002114451
申请日：2002-04-17
申请人： Advantest Corp , Hirakawa Hewtech Corp , 平河ヒューテック株式会社 , 株式会社アドバンテスト
发明人： YAMAGUCHI TETSUO , IWASAKI MITSUO , ISHIDO TAKAO , KUSAMA TAKAAKI , NANJO MITSUO , MATSUMURA SHIGERU , MURAYAMA SHIGERU
IPC分类号： H01B11/18 , H01B13/00 , H01B13/016
CPC分类号： Y02A30/50
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing precise foam coaxial cable capable of improving precision of characteristic impedance value between an inner conductor and an outer conductor and stabilizing a secondary forming process by executing secondary forming of the outer conductor and a high foam insulator of coaxial cable having high foam insulator (degree of foaming is 60% or more) having porous tape body adapted and equalizing thickness and outer diameters thereof and making an outer shape thereof a complete round. SOLUTION: In manufacturing precise foam coaxial cable having a foam insulator 2 formed on an outer circumference of the inner conductor 1 and having the outer conductor 3 formed on an outer circumference of the form insulator 2, the foam insulator 2 is formed by winding porous tape body of porosity 60% or more around the inner conductor 1. The foam insulator 2 is passed through a forming die having a designated inner diameter to form the same in a complete round of the designated outer diameter, a plurality of conductive fine wires are woven around an outer circumference of the foam insulator 2 to form the outer conductor 3. The outer conductor 3 is passed through an outer conductor forming die having a designated inner diameter to form a complete round of the designated outer diameter. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够提高内部导体和外部导体之间的特性阻抗值的精度的精确的泡沫同轴电缆的制造方法，并且通过执行外部导体的二次成形来稳定二次成形工艺，以及具有高泡沫绝缘体（发泡度为60％以上）的同轴电缆的高泡沫绝缘体，其具有适于并均匀其厚度和外径的多孔带体，并使其外形为圆形。解决方案：在制造具有形成在内导体1的外周上并具有形成在成形绝缘体2的外周上的外导体3的泡沫绝缘体2的精密泡沫同轴电缆的情况下，泡沫绝缘体2由围绕内部导体1的孔隙率为60％以上的多孔带状多孔带体。通过具有指定内径的成形模具，使泡沫绝缘体2在指定外径的整个圆周内形成，形成多个导电细电线围绕发泡绝缘体2的外圆周编织以形成外部导体3.外部导体3穿过具有指定内径的外部导体成形模具以形成指定外径的完整圆形。版权所有（C）2004，JPO

4. 发明专利

JP2001143539A FLAT CABLE AND METHOD OF MANUFACTURING THE SAME 失效
公开(公告)号：JP2001143539A
公开(公告)日：2001-05-25
申请号：JP32281299
申请日：1999-11-12
申请人： HIRAKAWA HEWTECH CORP
发明人： SAITO TOSHIAKI , IWASAKI MITSUO , ISOYAMA HIDEYUKI , WAKABAYASHI TOSHIYUKI , KUSAMA TAKAAKI
IPC分类号： H01B3/44 , H01B7/02 , H01B7/08 , H01B7/17 , H01B13/00
摘要： PROBLEM TO BE SOLVED: To provide a flat cable having a high resistance to a mechanical stress, and also to provide a method of manufacturing a flat cable in which foamed insulation layer is not affected by thermal bonding. SOLUTION: First curved concave surfaces 9, 10 are provided at two sides 7, 8 opposing in rectangular cross-section, and second curved concave surfaces are provided at other two sides 13, 14, and there are disposed in parallel a plurality of core lines 19 having outer coating 6 in which pointed ends 15 and 18 are formed at angled portions by a combination of the curved concave surfaces. The pointed ends 15 and 16 are bent horizontally and then heated and pressured to thermally bond them between adjacent core lines 19, whereby a flat cable being alternately formed with an integral portion 23 and a non- integral portion 24 can be provided. A reinforcing tape 20 is adhered to the outer coating 6 of the flat cable 22.

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