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    • 94. 发明授权
    • Manufacturing method of optical fiber
    • 光纤制造方法
    • US08661856B2
    • 2014-03-04
    • US13161132
    • 2011-06-15
    • Kenji Okada
    • Kenji Okada
    • C03B37/025
    • C03B37/02718C03B2205/50C03C25/12Y02P40/57
    • In an optical fiber manufacturing method, the cooling device and the coating device are connected in an airtight manner and by preventing a cooling gas, flowing inside the cooling device, from flowing into the coating device by a meniscus of resin inside of the coating device, a flow of the cooling gas inside the cooling device is discharged to an outside of an upper end of the cooling device as an upward stream; helium gas as the cooling gas flows into a lower portion of the cooling device and carbon dioxide gas as the cooling gas which is separated from the helium gas flows into a side lower than a position where the helium gas flows in, during the forcible cooling; and a flow rate of the helium gas and a flow rate of the carbon dioxide gas are individually controlled.
    • 在光纤制造方法中,冷却装置和涂布装置以气密的方式连接,并且通过防止在冷却装置内流动的冷却气体通过涂覆装置内部的树脂的弯液面流入涂布装置, 冷却装置内部的冷却气体的流动作为向上的流被排出到冷却装置的上端的外部; 氦气作为冷却气体流入冷却装置的下部,二氧化碳气体作为与氦气分离的冷却气体在强制冷却时流入低于氦气流入的一侧的一侧; 分别控制氦气的流量和二氧化碳气体的流量。
    • 96. 发明授权
    • Optical fiber manufacturing, cooling and coating method
    • 光纤制造,冷却和涂布方法
    • US08015847B2
    • 2011-09-13
    • US12432115
    • 2009-04-29
    • Kenji OkadaShingo Matsushita
    • Kenji OkadaShingo Matsushita
    • C03B37/023
    • C03B37/02718C03C25/12Y02P40/57
    • An optical fiber apparatus and manufacturing method thereof includes: forming a bare optical fiber by melting and deforming an optical fiber preform; cooling the bare optical fiber after the bare optical fiber forming step by passing it through a flow channel of a cooling unit through which cooling gas flows; and forming a protective coating layer by supplying a molten resin to a periphery of the bare optical fiber after the cooling step thereby forming an optical fiber. The cooling gas flowing toward a vertically lower end of the flow channel is blocked by the molten resin used to form the protective coating layer, and carbon dioxide gas is supplied toward the flow channel from a position which is vertically below the supply position of the cooling gas and vertically above the blocking position of the molten resin.
    • 一种光纤设备及其制造方法,包括:通过使光纤预制棒熔融变形而形成裸光纤; 在裸光纤形成步骤之后,通过使冷却气体流过的冷却单元的流路通过冷却裸光纤; 以及通过在冷却步骤之后将熔融树脂供应到裸光纤的周边而形成保护涂层,从而形成光纤。 流向流道垂直下端的冷却气被用于形成保护涂层的熔融树脂阻挡,二氧化碳气体从垂直于冷却供给位置的位置向流路供给 气体和垂直于熔融树脂的阻挡位置上方。
    • 97. 发明授权
    • Natural evaporation humidifier, humidifying element of the humidifier, and case for the humidifier
    • 天然蒸发加湿器,加湿器加湿元件和加湿器外壳
    • US08006960B2
    • 2011-08-30
    • US10593562
    • 2005-04-01
    • Kenji OkadaKunihiro Kaneko
    • Kenji OkadaKunihiro Kaneko
    • B01F3/04
    • F24F6/043F24F2006/008F24F2221/12
    • One end of a humidify element 12 which has a plurality of humidify segments 24 connected to be free to extend and contract is fixed to a first case portion 28. One end of another humidify element 12 having the same structure is fixed to a second case portion 30. Each other end of the two humidify elements 12 is connected by a connect member 48. An inner space 42 as a water reservoir is formed at the first case portion 28 and the second case portion 30. At the time of non-usage, the first case portion 28 and the second case portion 30 are closed, and the humidify elements 12 and the connect member 48 are stored in the inner space 42. At the time of usage, the first case portion 28 and the second case portion 30 are opened, and the humidify elements 12 are extended. By supplying water to the inner space 42, one end of the plurality of humidify segments 24 is soaked in the water, and the whole humidify element 12 is moistened by capillary.
    • 加湿元件12的一端具有连接成自由伸缩的多个加湿段24固定在第一壳体部分28上。具有相同结构的另一加湿元件12的一端固定到第二壳体部分 两个加湿元件12的每个另一端通过连接构件48连接。作为储水器的内部空间42形成在第一壳体部分28和第二壳体部分30上。在不使用时, 第一壳体部分28和第二壳体部分30关闭,并且加湿元件12和连接构件48被存储在内部空间42中。在使用时,第一壳体部分28和第二壳体部分30是 打开,并且加湿元件12延伸。 通过向内部空间42供水,将多个加湿段24的一端浸入水中,整个加湿元件12被毛细管润湿。
    • 99. 发明申请
    • OPTICAL FIBER MANUFACTURING DEVICE AND OPTICAL FIBER MANUFACTURING METHOD
    • 光纤制造设备和光纤制造方法
    • US20100319405A1
    • 2010-12-23
    • US12444808
    • 2008-12-24
    • Kenji Okada
    • Kenji Okada
    • C03C25/10C03B37/02
    • C03B37/032C03B2205/42C03C25/12Y02P40/57
    • An optical fiber manufacturing device includes a bare optical fiber-forming unit that forms a bare optical fiber by pulling an optical fiber preform; a coating unit that forms an optical fiber by coating the bare optical fiber outputted from the bare optical fiber-forming unit with a coating layer; a first direction-converter, which is a solid body that comes into contact with the optical fiber outputted from the coating unit and thereby first changing its traveling direction; and a winder that winds the optical fiber obtained from the first direction-converter, in which: the first direction-converter is a rotating body having a circumferential face that contacts with the optical fiber and is formed around an axis of rotation thereof; and the contact angle, centered on the axis of rotation, between this rotating body and the optical fiber is in the range of 10° to 80°.
    • 光纤制造装置包括通过拉动光纤预制件形成裸光纤的裸光纤形成单元; 涂覆单元,其通过用涂层涂布从裸光纤形成单元输出的裸光纤形成光纤; 第一方向转换器,其是与从涂布单元输出的光纤接触的固体,从而首先改变其行进方向; 以及卷绕机,其卷绕从第一方向转换器获得的光纤,其中:第一方向转换器是具有与光纤接触的周向面并围绕其旋转轴线形成的旋转体; 并且在该旋转体和光纤之间的以旋转轴为中心的接触角在10°至80°的范围内。
    • 100. 发明授权
    • Polymer clad optical fiber
    • 聚合物包层光纤
    • US07680390B2
    • 2010-03-16
    • US12439376
    • 2008-03-14
    • Kenji OkadaJunichi Takahashi
    • Kenji OkadaJunichi Takahashi
    • G02B6/00G02B6/036
    • G02B6/02033G02B6/03605G02B6/03627G02B6/03633
    • A polymer clad optical fiber is provided in which, if the diameter of an inner core is taken as a1, and the diameter of an outer core is taken as a2, and if a ratio X (which=a22/a12) between a cross-sectional area of the inner core and a cross-sectional area of the outer core is within a range of 1.8≦X≦2.2, and if a relative refractive index difference between the inner core and the outer core is taken as Δ1, and if a relative refractive index difference between the outer core and a cladding is taken as Δ2, then for a parameter Y which is defined as Y=Δ1/Δ2, when a high temperature is taken as Ymax and a low temperature is taken as Ymin, a relationship is established in which, when X is within a range of 1.8≦X≦2.0, then 0.25≦Ymin≦0.84X−0.68, and Ymax is 0.25≦Ymax≦0.84X−0.68, and, when X is within a range of 2.0≦X≦2.2, Ymin is 0.48X−0.71≦Ymin≦−2/9X+13/9, and Ymax is 0.48X−0.71≦Ymax≦−2/9X+13/9.
    • 提供一种聚合物包覆光纤,其中如果将内芯的直径取为a1,将外芯的直径作为a2,并且如果将内芯的直径作为a的比例X(= a22 / a12) 内芯的截面面积和外芯的横截面面积在1.8< NlE; X< lE; 2.2的范围内,并且如果将内芯和外芯之间的相对折射率差作为&Dgr; 1, 并且如果将外芯和包层之间的相对折射率差作为&Dgr; 2,则对于被定义为Y =&Dgr; 1 /&Dgr; 2的参数Y,当将高温作为Ymax和 将低温作为Ymin,建立X为1.8≦̸ X≦̸ 2.0,则为0.25≦̸ Ymin≦̸ 0.84X-0.68,Ymax为0.25≦̸ Ymax≦̸ 0.84X- 0.68,并且当X在2.0& NlE的范围内时,X< ll; 2.2,Ymin分别为0.48X-0.71< Ymin≦̸ -2 / 9X + 13/9,Ymax为0.48X-0.71&NlE; Ymax& / 9X + 13/9。