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    Method for producing glass preform for optical fiber
    2.
    发明授权
    Method for producing glass preform for optical fiber 失效
    光纤玻璃预制棒的制造方法

    公开(公告)号：US5330548A

    公开(公告)日：1994-07-19

    申请号：US913965

    申请日：1992-07-17

    申请人： Toshio Danzuka ,  Masumi Ito ,  Ichiro Tsuchiya

    发明人： Toshio Danzuka ,  Masumi Ito ,  Ichiro Tsuchiya

    IPC分类号： C03B37/014 ,  C03B37/023

    CPC分类号： C03B37/0146 ,  C03B37/01446

    摘要： A transparent glass preform for an optical fiber is produced by heating a glass soot preform to remove gas from the soot preform at a temperature at which the soot preform is not vitrified under reduced pressure, and then heating the preform at a temperature at which the preform is vitrified under reduced pressure, whereby the transparent glass preform containing no or little bubbles and having a uniform outer diameter is produced.

    摘要翻译： 用于光纤的透明玻璃预制件通过加热玻璃烟炱预制件以在烟灰预制件在减压下未玻璃化的温度下从烟炱预制件中除去气体，然后在预成型件的温度下加热预成型件 在减压下进行玻璃化，由此产生不含或少量气泡且具有均匀外径的透明玻璃预制件。

    Process for consolidation of porous preform for optical fiber
    3.
    发明授权
    Process for consolidation of porous preform for optical fiber 失效
    用于光纤多孔预型件的固结工艺

    公开(公告)号：US5470369A

    公开(公告)日：1995-11-28

    申请号：US197534

    申请日：1994-02-16

    申请人： Ichiro Tsuchiya ,  Toshio Danzuka ,  Masumi Ito

    发明人： Ichiro Tsuchiya ,  Toshio Danzuka ,  Masumi Ito

    IPC分类号： C03B37/014 ,  G02B6/00 ,  C03B37/018

    CPC分类号： C03B37/01446 ,  C03B37/0146

    摘要： There is provided a process for the consolidation of a porous glass preform for an optical fiber by heating the preform under an increasing pattern of a heating temperature in a vacuum furnace comprising a muffle tube therein characterized in that the increasing pattern is divided into two steps consisting of a first step and a second step with regard to time, and the first step has a pattern in which the heating temperature is increased under a reduced pressure atmosphere and a gas comprising at least an inert gas is supplied to the vacuum furnace under the reduced pressure atmosphere and the second step has a pattern in which the heating temperature is increased under a reduced pressure atmosphere in which a gas comprising a smaller amount of an inert gas than that of the first step is supplied to the vacuum furnace or under a vacuum pressure atmosphere in which no gas is supplied to the vacuum furnace.

    摘要翻译： 提供了一种通过在包括马弗管的真空炉中以加热温度升高的模式加热预成型件来固化光纤的多孔玻璃预制件的方法，其特征在于，将增加的图案分为两个步骤： 关于时间的第一步骤和第二步骤，并且第一步骤具有在减压气氛下加热温度升高的模式，并且至少包含惰性气体的气体在减压下供给到真空炉中 第二步骤是在减压气氛中加热温度升高的模式，其中将包含比第一步骤少的惰性气体的气体供给至真空炉或真空压力 没有气体供应到真空炉的气氛。

    Process for production of glass preform for optical fiber including consolidating in a furnace with a temperature gradient
    4.
    发明授权
    Process for production of glass preform for optical fiber including consolidating in a furnace with a temperature gradient 失效
    生产用于光纤的玻璃预制棒的方法，包括在具有温度梯度的炉中固结

    公开(公告)号：US5693115A

    公开(公告)日：1997-12-02

    申请号：US204100

    申请日：1994-03-02

    申请人： Masumi Ito ,  Toshio Danzuka ,  Yuichi Ohga ,  Sumio Hoshino ,  Ichiro Tsuchiya

    发明人： Masumi Ito ,  Toshio Danzuka ,  Yuichi Ohga ,  Sumio Hoshino ,  Ichiro Tsuchiya

    IPC分类号： C03B8/04 ,  C03B20/00 ,  C03B37/014 ,  G02B6/00 ,  C03B37/012

    CPC分类号： C03B37/01446

    摘要： In order to provide an improved process for the production of a glass preform for an optical fiber which includes substantially no bubble formation therein and also has a substantially uniform shape, the present invention provides a process for the production of a glass preform which is at least partially formed from silica. In particular, a body is formed on a rod by depositing fine glass particles thereon, preferably by the vapor phase reactions, and heating the body to vitrify under a reduced atmosphere or a vacuumed atmosphere so that the glass preform is produced. According to this process, the heating includes a first heating step of degassing the body at a first heating temperature, a second heating step of shrinking the body at a second heating temperature which is higher than the first heating temperature and which is lower than a third heating temperature, and a third heating step of vitrifying the shrunken body at the third temperature which corresponds to a vitrification temperature of the fine glass particles so as to produce the glass preform.

    摘要翻译： 为了提供用于生产用于光纤的玻璃预制棒的改进方法，其包括基本上不形成气泡并且还具有基本上均匀的形状，本发明提供了一种用于生产玻璃预制件的方法，所述玻璃预制件至少是 部分由二氧化硅形成。 特别地，通过优选通过气相反应在其上沉积微细玻璃颗粒而在棒上形成主体，并且在还原气氛或真空气氛下将体加热至玻璃化，从而制备玻璃预制件。 根据该方法，加热包括在第一加热温度下使本体脱气的第一加热步骤，在比第一加热温度高于第三加热温度的第二加热温度下使本体收缩的第二加热步骤， 加热温度，第三加热步骤，在与玻璃微细玻璃微粒的玻璃化温度对应的第三温度下使收缩体玻璃化，制成玻璃预制件。

    Optical fiber preform manufacturing apparatus which measures a vertical load with three cells
    6.
    发明授权
    Optical fiber preform manufacturing apparatus which measures a vertical load with three cells 失效
    用三个电池测量垂直负载的光纤预制棒制造装置

    公开(公告)号：US5624474A

    公开(公告)日：1997-04-29

    申请号：US338183

    申请日：1994-11-09

    申请人： Ichiro Tsuchiya ,  Hiroaki Ohta ,  Toshio Danzuka

    发明人： Ichiro Tsuchiya ,  Hiroaki Ohta ,  Toshio Danzuka

    IPC分类号： C03B37/014 ,  C03B37/07

    CPC分类号： C03B37/01486

    摘要： An optical fiber preform manufacturing apparatus which continuously monitors the weight of a preform during manufacturing by a load cell without increasing the offset amount of the preform. The preform manufacturing apparatus includes a rotary chuck unit vertically moved by an elevating unit and a rod gripped by the rotary chuck unit and vertically extending downward. At the time of manufacturing a preform, the elevating unit and the rotary chuck unit are driven to rotate and move a starting rod suspended from the lower end of the rod upward. A support plate is fixed to the rotary chuck unit. Three or more load cells are arranged between the support plate and an elevating plate of the elevating unit. The rotary chuck unit is firmly supported by these load cells, so that the rotating shaft is not inclined. A hole is formed in the elevating plate, and the rotary chuck unit extends through the hole with a gap therebetween. A load by the support plate, the rotary chuck unit, the seed rod, a starting rod and the preform acts on the load cells. Therefore, the weight of the preform can be detected from an output from the load cells.

    摘要翻译： 一种光纤预制棒制造装置，其在通过测力传感器制造期间连续地监视预制棒的重量，而不增加预成型件的偏移量。 预成型体制造装置包括由升降单元垂直移动的旋转卡盘单元和由旋转卡盘单元夹持的杆，并且向下垂直延伸。 在制造预成型件时，升降单元和旋转卡盘单元被驱动以使从杆的下端向上悬挂的起始杆旋转移动。 支撑板固定到旋转卡盘单元。 在支撑板和升降单元的升降板之间布置有三个或更多的称重传感器。 旋转卡盘单元由这些称重传感器牢固地支撑，使得旋转轴不倾斜。 在升降板上形成孔，旋转卡盘单元在孔之间延伸穿过孔。 支撑板，旋转卡盘单元，种子杆，起始杆和预制件的负载作用在称重传感器上。 因此，可以从称重传感器的输出检测预成型件的重量。

    Optical fiber coupler making apparatus made from zirconia and method
    7.
    发明授权
    Optical fiber coupler making apparatus made from zirconia and method 失效
    由氧化锆制成的光纤耦合器制造装置及方法

    公开(公告)号：US06543256B1

    公开(公告)日：2003-04-08

    申请号：US09590166

    申请日：2000-06-09

    申请人： Toshiki Taru ,  Ichiro Tsuchiya

    发明人： Toshiki Taru ,  Ichiro Tsuchiya

    IPC分类号： C03B37029

    CPC分类号： C03B37/15 ,  G02B6/2835 ,  G02B6/2856 ,  Y02P40/57

    摘要： In an optical fiber coupler making apparatus which makes an optical fiber coupler by thermally fusing a plurality of optical fibers together by use of a heater and then elongating thus thermally fused part, the heater comprises a heating element which is made of zirconia and which has a slit for containing the optical fibers. The inner face of the heating element is preferentially heated due to a characteristic of its material. Consequently, if optical fibers are contained in the fiber receiving slit, then they can be thermally fused at a sufficiently high temperature in a short period of time, whereby reducing mingling of impurities into the optical fiber coupler. Therefore, the heating element made of zirconia is effective as means for preventing impurities from mingling from the outside thereof. Also, performances of the heating element can be maintained over a long period of time even if the optical fibers are thermally fused at a high temperature. Further, the evaporation of impurities, which may adversely affect characteristics of the optical fiber coupler, hardly occurs from the heating element.

    摘要翻译： 在通过使用加热器将多根光纤热熔合在一起并随后拉伸这样的热熔融部分而制造光纤耦合器的光纤耦合器制造装置中，加热器包括由氧化锆制成的加热元件， 用于容纳光纤的狭缝。 由于其材料的特性，加热元件的内表面被优先加热。 因此，如果在光纤接收狭缝中包含光纤，则可以在短时间内以足够高的温度热熔融，从而减少杂质混入光纤耦合器中。 因此，由氧化锆制成的加热元件作为防止杂质从其外部混合的手段是有效的。 此外，即使光纤在高温下热熔融，也可以长时间保持加热元件的性能。 此外，可能不利地影响光纤耦合器的特性的杂质的蒸发几乎不会从加热元件发生。

    Method of making an optical fiber with an improved UV-curable resin
    8.
    发明授权
    Method of making an optical fiber with an improved UV-curable resin 有权
    制备具有改进的UV固化树脂的光纤的方法

    公开(公告)号：US06530243B1

    公开(公告)日：2003-03-11

    申请号：US09659831

    申请日：2000-09-11

    申请人： Kazuya Kuwahara ,  Ichiro Tsuchiya ,  Yasuhiro Naganuma

    发明人： Kazuya Kuwahara ,  Ichiro Tsuchiya ,  Yasuhiro Naganuma

    IPC分类号： C03B37027

    CPC分类号： C03B37/027 ,  C03B37/032 ,  C03B2205/40 ,  C03C25/12 ,  Y02P40/57

    摘要： A method of drawing an optical fiber which can improve the efficiency in manufacture without deforming resin coatings is provided. The method of drawing an optical fiber in accordance with the present invention is a method in which an optical fiber yielding an outside diameter of 300 to 600 &mgr;m after a resin coating is formed is drawn at a drawing speed of at least 50 m/min, wherein the optical fiber is drawn in a state where the pass line length zp from the outlet of curing furnace to the entrance part of capstan satisfies the following expression (1): z p ≥ - ρ ⁢   ⁢ C p _ · d 2 4 · d 2 2 - d 1 2 A · V f · ln ⁡ [ ( T g - 10 ) - T o T s - T o ] ( 1 ) where Tg is the glass transition temperature of the coating resin [° C.]; TS is the fiber temperature [=TF(0)] at z=0 [° C.]; TO is the room temperature [° C.]; {overscore (&rgr;Cp)} is the average heat capacity of glass and resin [J/(cm3·° C.)]; d1 is the radius before coating [cm]; d2 is the radius after coating [cm]; A is a given constant within the range of 1.5×10−6 to 4.5×10−6 [J/(sec·° C.)]; and Vf is the drawing speed [cm/sec].

    摘要翻译： 提供一种拉伸光纤的方法，其可以在不使树脂涂层变形的情况下提高制造效率。 根据本发明的拉伸光纤的方法是在形成树脂涂层后产生300-600μm的外径的光纤以至少50m / min的拉伸速度被拉伸， 其中在从固化炉的出口到主导轴的入口部分的通过线路长度zp满足以下表达式（1）的情况下拉制光纤：其中T g是涂层树脂的玻璃化转变温度[℃] ; TS是z = 0 [℃]时的纤维温度[= TF（0）]; TO是室温[℃]; {overscore（rhoCp是玻璃和树脂的平均热容量[J / （cm 3·℃）]; d1是涂布前的半径[cm]; d2是涂布后的半径[cm]; A是在1.5×10 -6至4.5×10 -6 [J / （sec。°C）]; vf是拉伸速度[cm / sec]。

    Recording sheet for ink-jet recording and ink jet
    9.
    发明授权
    Recording sheet for ink-jet recording and ink jet 失效
    用于喷墨记录和喷墨的记录纸

    公开(公告)号：US6057026A

    公开(公告)日：2000-05-02

    申请号：US008980

    申请日：1998-01-20

    申请人： Ichiro Tsuchiya ,  Hiroyuki Uemura

    发明人： Ichiro Tsuchiya ,  Hiroyuki Uemura

    IPC分类号： B41M5/00 ,  B41M5/50 ,  B41M5/52

    CPC分类号： B41M5/5227 ,  B41M5/506 ,  B41M5/508 ,  B41M5/5236 ,  B41M5/5254 ,  Y10T428/31786 ,  Y10T428/31855 ,  Y10T428/31895 ,  Y10T428/31902 ,  Y10T428/31993

    摘要： A recording sheet for ink-jet recording comprising a support, and provided on one side of the support, an ink receiving layer, wherein the ink receiving layer contains a compound represented by the following formula I: ##STR1## wherein Q.sup.1 and Q.sup.2 independently represent a non-metallic atomic group necessary to form an acidic nitrogen-containing heterocyclic ring; L.sup.1, L.sup.2, and L.sup.3 independently represent a substituted or unsubstituted methine group; M represents a cationic group; m represents an integer of 0 to 4; and n represents a number necessary to neutralize the charge of the molecule.

    摘要翻译： 一种用于喷墨记录的记录纸，包括支撑体，并且在支撑体的一侧上设置有油墨接收层，其中油墨接收层含有由下式I表示的化合物：其中Q1和Q2独立地表示非 - 形成酸性含氮杂环所必需的金属原子团; L1，L2和L3独立地表示取代或未取代的次甲基; M表示阳离子基团; m表示0〜4的整数， n表示中和分子的电荷所需的数。