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    • 2. 发明专利
    • Tubular laminate formed by laminating layers of molding made of degradable resin and manufacturing method of the tubular laminate
    • 通过层压可降解树脂成型层形成的管状层压板和管状层压板的制造方法
    • JP2013112959A
    • 2013-06-10
    • JP2011258566
    • 2011-11-28
    • Kureha Corp株式会社クレハ
    • YAMAZAKI MASAHIROABE SHUNSUKESATO HIROYUKIKANNO KAZUYUKI
    • E21B43/08E03B3/18
    • PROBLEM TO BE SOLVED: To provide a tubular article which facilitates exact closing and opening of through holes as appropriate and, in particular, dispenses with special opening operation to reduce a step in a tubular body having the through holes in a pipe wall, and, when materials and the like used for closing or opening the through holes are discarded after opening the through holes, and, since the discarded materials exert no influence on the environment, dispenses with or facilitates treatment of the discarded materials, and to provide a manufacturing method of the tubular article.SOLUTION: A tubular laminate is formed by laminating layers of a molding made of a degradable resin having degradability in an aqueous medium, preferably a biodegradable aliphatic polyester resin, on the external surface of a tubular substrate having through holes in a pipe wall. A manufacturing method is for manufacturing the tubular laminate.
    • 要解决的问题:提供一种有助于恰当地精确地关闭和打开通孔的管状制品,特别是省去了特殊的打开操作,以减少在管壁中具有通孔的管状体的台阶 并且在打开通孔之后,当用于关闭或打开通孔的材料等被丢弃时,并且由于废弃的材料对环境不施加影响,所以省略或便于废弃材料的处理,并且提供 管状制品的制造方法。 解决方案:通过将具有降解性的可降解树脂的模塑制品在水性介质中,优选可生物降解的脂族聚酯树脂层压在管状基材的外表面上,在管壁上具有通孔,从而形成管状层压体 。 制造方法用于制造管状层压体。 版权所有(C)2013,JPO&INPIT
    • 5. 发明专利
    • Cylindrical screen for well, having longitudinal skid rods
    • 圆柱形屏风,具有长期的滑轨
    • JP2003314184A
    • 2003-11-06
    • JP2002125383
    • 2002-04-26
    • Tadayoshi Nagaoka忠義 永岡
    • NAGAOKA TADAYOSHI
    • B01D29/11E21B43/08
    • E21B43/088B01D29/111B01D29/15B01D29/48B01D29/58E21B43/084E21B43/086
    • PROBLEM TO BE SOLVED: To provide a cylindrical screen which is easily inserted into a horizontal well or an inclined well, and prevents damage or clogging of slits formed therein. SOLUTION: The cylindrical screen (1) is formed of a plurality of support rods (2), and a spiral wire (3). The support rods (2) extend in a screen axial direction and arranged at predetermined intervals in a screen circumferential direction. The spiral wire (3) is arranged on the outside of the support rods (2) and wound about the same in a manner forming slits at predetermined intervals. The cylindrical screen (1) has a plurality of skin rods (4) welded to an outer peripheral surface of the spiral wire (3) in a manner extending in the screen axial direction and being arranged at predetermined intervals in the screen circumferential direction. Each skin rod (4) is formed of a metal. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种易于插入水平井或倾斜井的圆柱形筛网,并且防止在其中形成的狭缝的损坏或堵塞。 解决方案:圆筒形筛网(1)由多个支撑杆(2)和螺旋丝(3)形成。 支撑杆(2)在丝网轴向延伸并且以丝网周向的预定间隔布置。 螺旋线(3)布置在支撑杆(2)的外侧上,并以预定间隔形成狭缝的方式缠绕在其上。 圆筒形筛网(1)具有多个在丝网轴向延伸的方式焊接在螺旋丝(3)的外周面上的表皮杆(4),并且以规定的间隔配置在丝网圆周方向上。 每个皮肤杆(4)由金属形成。 版权所有(C)2004,JPO
    • 6. 发明专利
    • Screen cylinder of multi-welding structure for horizontal well or directional well
    • 用于水平井或方向井的多层焊接结构的筛筒
    • JP2003314183A
    • 2003-11-06
    • JP2002125382
    • 2002-04-26
    • Tadayoshi Nagaoka忠義 永岡
    • NAGAOKA TADAYOSHI
    • E21B43/08
    • E21B43/088
    • PROBLEM TO BE SOLVED: To provide a screen cylinder for a horizontal well or a directional well, which prevents intrusion of sand into the screen over a long period of time. SOLUTION: The screen cylinder of a multi-welding structure for the horizontal well or the directional well, consists of a plurality of support rods (2), a spiral wedge wire (3), and a plurality of linear wedge wires (4). The support rods (2) extend in a screen axial direction and they are arranged at predetermined intervals in a screen circumferential direction. The spiral wedge wire (3) is wound about the support rods (3) on the outside of the same in a manner forming slits (3a) with a predetermined width. The linear wedge wires (4) extend in the screen axial direction and they are arranged on the outside of the spiral wedge wire (3) in a manner forming slits (4a) with a predetermined width in the screen circumferential direction. Further, the linear wedge wires (4) are directly welded to the spiral wedge wire (3). COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供用于水平井或定向井的筛筒,其防止砂子在长时间内进入筛网。 解决方案:用于水平井或定向井的多焊接结构的筛筒由多个支撑杆(2),螺旋楔形丝(3)和多个线性楔形丝( 4)。 支撑杆(2)在丝网轴向延伸,并且在丝网圆周方向上以预定间隔布置。 螺旋楔形线(3)以形成预定宽度的狭缝(3a)的方式缠绕在其外侧的支撑杆(3)上。 直线楔形丝(4)在丝网轴方向上延伸,并且以丝网圆周方向形成有预定宽度的狭缝(4a)的方式布置在螺旋楔形丝(3)的外侧。 此外,线性楔形丝(4)直接焊接到螺旋楔形丝(3)上。 版权所有(C)2004,JPO