公开(公告)号：US20060213229A1

公开(公告)日：2006-09-28

申请号：US11443062

申请日：2006-05-31

Applicant: Tadakatsu Shimada ,  Yuuji Tobisaka ,  Kazuhisa Hatayama ,  Hideo Hirasawa

Inventor： Tadakatsu Shimada ,  Yuuji Tobisaka ,  Kazuhisa Hatayama ,  Hideo Hirasawa

IPC: C03B37/07 ,  C03B37/018

CPC classification number: C03B37/0142 ,  C03B37/01202 ,  C03B37/01406 ,  C03B37/01486 ,  C03B2207/36 ,  C03B2207/52 ,  C03B2207/66 ,  C03B2207/70

Abstract: A glass base material manufacturing apparatus for manufacturing a glass base material comprising: a plurality burners, arranged in a row at a predetermined intervals along the longitudinal direction of a starting base material of the glass base material, for forming a deposit, which is a base material of the glass base material by depositing glass soot on the starting base material while moving reciprocatory over a section of the entire length of the starting base material along the longitudinal direction of the starting base material; a plurality of flow rate regulators, at least one of which is connected to the plurality of burners, respectively, for regulating a flow rate of raw material gas of the glass soot, which is supplied to the plurality of burners; and a control unit connected to each of the plurality of flow rate regulators for controlling individually the plurality of flow rate regulators.

Abstract translation: 一种用于制造玻璃基材的玻璃基材制造装置，包括：多个燃烧器，沿着玻璃基材的起始基材的长度方向以预定间隔排成一列，以形成作为基材的沉积物 通过在起始基材上沿着起始基材的整个长度的一部分沿着起始基材的长度方向往复运动而将玻璃烟灰沉积在起始基材上; 多个流量调节器，其至少一个分别连接到多个燃烧器，用于调节供给到多个燃烧器的玻璃烟炱的原料气体的流量; 以及连接到所述多个流量调节器中的每一个的控制单元，用于单独地控制所述多个流量调节器。

公开(公告)号：US20050132753A1

公开(公告)日：2005-06-23

申请号：US11046889

申请日：2005-02-01

Applicant: Yoshiaki Shimizu ,  Takaaki Nagano ,  Tadakatsu Shimada ,  Hideo Hirasawa ,  Masataka Watanabe ,  Kazuhisa Hatayama ,  Mitsukuni Sakashita ,  Minoru Taya ,  Waichi Yamamura ,  Shinji Suzuki ,  Jiro Moriya

Inventor： Yoshiaki Shimizu ,  Takaaki Nagano ,  Tadakatsu Shimada ,  Hideo Hirasawa ,  Masataka Watanabe ,  Kazuhisa Hatayama ,  Mitsukuni Sakashita ,  Minoru Taya ,  Waichi Yamamura ,  Shinji Suzuki ,  Jiro Moriya

IPC: C03B23/047 ,  C03B37/012 ,  C03B37/027 ,  C03B37/07

CPC classification number: C03B23/047 ,  C03B37/01202 ,  C03B37/01205 ,  C03B37/0124 ,  C03B37/027 ,  C03B2205/47

Abstract: A method for manufacturing an optical fiber comprises setting a heating condition for heating a glass rod, which is a parent material of the optical-fiber, and an elongating speed of the glass rod based on a prescribed numerical value which changes with a progress of elongation of the glass rod; heating and elongating the glass rod to generate a preform based on the heating condition and the elongating speed which are set by the setting; and drawing the preform to a filament-like form by further heating the preform to generate the optical fiber.

Abstract translation: 制造光纤的方法包括：设定用于加热作为光纤的母材的玻璃棒的加热条件和根据随着伸长率的变化而变化的规定数值的玻璃棒的拉伸速度 的玻璃棒; 加热和拉伸玻璃棒，以根据加热条件和通过设定设定的拉伸速度产生预成型件; 并通过进一步加热预成型件将预成型件拉丝成丝状，以产生光纤。

公开(公告)号：US06698240B1

公开(公告)日：2004-03-02

申请号：US09585573

申请日：2000-06-02

Applicant: Hiroshi Tsumura ,  Hiroyuki Koide ,  Yuuji Tobisaka ,  Kazuhisa Hatayama ,  Go Ogino ,  Tadakatsu Shimada ,  Hideo Hirasawa

Inventor： Hiroshi Tsumura ,  Hiroyuki Koide ,  Yuuji Tobisaka ,  Kazuhisa Hatayama ,  Go Ogino ,  Tadakatsu Shimada ,  Hideo Hirasawa

IPC: C03B804

CPC classification number: C03B37/01413

Abstract: An apparatus for manufacturing a glass base material which is an parent material of an optical fiber, comprising: a tank which contains a raw material of the glass base material to vaporize the raw material to generate a raw material in gas phase; a temperature control unit which controls a temperature of the raw material; and a pressure control unit which controls the pressure of the raw material in gas phase.

Abstract translation: 1.一种制造作为光纤母材的玻璃基材的装置，其特征在于，包括：含有所述玻璃基材的原料的蒸发原料以生成气相原料的罐; 温度控制单元，其控制原料的温度; 以及控制原料在气相中的压力的​​压力控制单元。

公开(公告)号：US06640589B1

公开(公告)日：2003-11-04

申请号：US09714874

申请日：2000-11-17

Applicant: Mitsukuni Sakashita ,  Shoji Hoshino ,  Tadakatsu Shimada ,  Waichi Yamamura ,  Hideo Hirasawa

Inventor： Mitsukuni Sakashita ,  Shoji Hoshino ,  Tadakatsu Shimada ,  Waichi Yamamura ,  Hideo Hirasawa

IPC: C03B37025

CPC classification number: C03B37/0124 ,  C03B37/01202

Abstract: The glass base material drawing apparatus for heating and drawing a glass base material has a storage unit for storing the glass base material having an opening unit that is opened along the longitudinal direction of the storage unit when the glass base material is placed inside the storage unit, a heating unit for heating the glass base material that has been stored inside the storage unit via the opening unit, and a pull-out unit for pulling out the glass base material heated by the heating unit. The opening unit may be opened in such a manner that the glass base material is moved from a side direction of the storage unit into the interior of the storage unit. A main axis for supporting the glass base material is connected to the glass base material. The storage unit may have a penetration hole through which the main axis is inserted when the opening unit is closed.

Abstract translation: 用于玻璃基材的加热和拉伸的玻璃基材拉制装置具有一个储存单元，用于储存玻璃基材，当玻璃基材放置在储存单元内时，该玻璃基材具有沿储存单元的长度方向开放的开口单元 ，用于经由开口单元加热存储在存储单元内的玻璃基材的加热单元，以及用于拉出由加热单元加热的玻璃基材的拉出单元。 打开单元可以以使玻璃基材从储存单元的侧面方向移动到储存单元的内部的方式打开。 用于支撑玻璃基材的主轴连接到玻璃基材。 存储单元可以具有穿透孔，当打开单元关闭时，通孔穿过该插入孔。

公开(公告)号：US06532776B1

公开(公告)日：2003-03-18

申请号：US09575369

申请日：2000-05-22

Applicant: Shinji Suzuki ,  Hideo Hirasawa ,  Tadakatsu Shimada

Inventor： Shinji Suzuki ,  Hideo Hirasawa ,  Tadakatsu Shimada

IPC: C03B3716

CPC classification number: C03B29/14 ,  C03B29/00 ,  C03B37/01205

Abstract: A method for fusing an optical fiber preform comprises fusing the preform while blowing an oxidative gas against the preform to be fused from upper and lower directions of a fusing burner unit. An apparatus for carrying out the method includes a plurality of nozzles for preventing deposition of silica cloud, which are each set at an angle, &thgr;, of blowing the oxidative gas relative to the preform being drawn such 20°≦&thgr;≦60°.

Abstract translation: 一种用于熔化光纤预制件的方法包括将预成型件熔融，同时从熔融燃烧器单元的上下方向吹出预先熔化的氧化气体。 用于执行该方法的装置包括用于防止二氧化硅沉积的多个喷嘴，每个喷嘴均设置成角度θ，相对于被拉伸的预成型件吹送氧化气体为20°<= 60° 。

公开(公告)号：US06467311B1

公开(公告)日：2002-10-22

申请号：US09487342

申请日：2000-01-19

Applicant: Hideki Fujii ,  Takaaki Nagao ,  Shoji Hoshino ,  Tadakatsu Shimada ,  Hideo Hirasawa

Inventor： Hideki Fujii ,  Takaaki Nagao ,  Shoji Hoshino ,  Tadakatsu Shimada ,  Hideo Hirasawa

IPC: C03B37023

CPC classification number: C03B29/02 ,  C03B37/01237

Abstract: The optical fiber base material heat treatment method can be provided that the first flame polishing heats the surface of the optical fiber base material (106) with fixing a length of the optical fiber base material (106) and the second flame polishing heats the surface of the optical fiber base material (106) by lower temperature than the temperature of the heating of the first flame polishing.

Abstract translation: 可以提供光纤基材热处理方法，即第一火焰抛光通过固定光纤基材（106）的长度来加热光纤基材（106）的表面，并且第二火焰抛光加热了光纤基材 所述光纤基材（106）的温度比所述第一次火焰抛光的加热温度低。

公开(公告)号：US06442978B1

公开(公告)日：2002-09-03

申请号：US09520966

申请日：2000-03-08

Applicant: Takeshi Kamio ,  Hiroyuki Koide ,  Hiroshi Tsumura ,  Tadakatsu Shimada ,  Hideo Hirasawa

Inventor： Takeshi Kamio ,  Hiroyuki Koide ,  Hiroshi Tsumura ,  Tadakatsu Shimada ,  Hideo Hirasawa

IPC: C03B3707

CPC classification number: C03B37/0146 ,  C03B37/01446 ,  Y02P40/57

Abstract: Apparatus (700) for sintering a glass base material (2) which is a base material for an optical fiber. The sintering apparatus (700) includes: a control unit which varies a condition for sintering the glass base material; and a furnace (12) which sinters the glass base material by heating the glass base material in an atmosphere of dehydration gas and inert gas. The control unit includes a drive source (3) which supplies the glass base material to the furnace at various speeds. The control unit includes a temperature control unit which controls the temperature of a heating source provided in the furnace.

Abstract translation: 用于烧结作为光纤基材的玻璃基材（2）的设备（700）。 烧结装置（700）包括：控制单元，其改变用于烧结玻璃基材的状态; 以及通过在脱水气体和惰性气体的气氛中加热玻璃基材来烧结玻璃基材的炉（12）。 控制单元包括以各种速度将玻璃基材供应到炉的驱动源（3）。 控制单元包括控制设置在炉中的加热源的温度的温度控制单元。

公开(公告)号：US06354112B2

公开(公告)日：2002-03-12

申请号：US09204125

申请日：1998-12-02

Applicant: Yasuhiro Nakashima ,  Tadakatsu Shimada ,  Hideo Hirasawa

Inventor： Yasuhiro Nakashima ,  Tadakatsu Shimada ,  Hideo Hirasawa

IPC: C03B37018

CPC classification number: C03B37/01406

Abstract: A method and apparatus for producing a glass base material for an optical fiber. A material for an optical fiber and a reaction gas are jetted from a burner connected to a material line and a gas line toward a surface of a quartz substrate, in order to deposit a soot-like reaction product on the substrate at a predetermined position to thereby produce a glass base material for an optical fiber. Dry air is introduced into a reaction container in an amount of 4 to 8 times the amount of water vapor that is generated due to flame hydrolysis during the reaction. Therefore, it is possible to reliably solve the problem that the interior of the reaction container is excessively dried, with the result that soot generated through a reaction adheres to and aggregates on the wall surface of the reaction container due to static electricity, and the problem that the amount of water vapor becomes excessive and is condensed on the wall surface, with the result that soot strongly adheres to the wall surface, while the observation window or the like becomes fogged. Further, soot peeled off the wall surface is prevented from adhering to or melting into the side surface or base portion of a pre-form being pulled, so that the quality of products is improved, and stable operation becomes possible.

Abstract translation: 一种用于制造光纤用玻璃基材的方法和装置。 将用于光纤和反应气体的材料从连接到材料线和气体管线的燃烧器朝向石英基板的表面喷射，以便将预定位置的基材上的烟灰状反应产物沉积到 从而制造用于光纤的玻璃基材。 干燥空气以反应中由于火焰水解产生的水蒸汽量的4至8倍的量引入反应容器中。 因此，能够可靠地解决反应容器的内部过度干燥的问题，结果是由反应容器产生的烟灰由于静电而附着在反应容器的壁面上并聚集在反应容器的壁面上， 水蒸汽的量变得过量并且在壁表面上被冷凝，结果是烟灰强烈地粘附到壁表面，同时观察窗等变得雾化。 此外，防止从壁面剥离的烟灰粘附或熔化到被拉伸的预成型体的侧面或基部，从而提高产品的质量，并且可以稳定地操作。

公开(公告)号：US20050147367A1

公开(公告)日：2005-07-07

申请号：US10934473

申请日：2004-09-07

Applicant: Tadakatsu Shimada ,  Dai Inoue ,  Hiroshi Oyamada ,  Kazuhisa Hatayama ,  Hiroshi Machida ,  Tetsuya Otosaka ,  Fumio Saitoh ,  Yasuhiro Nakashima ,  Takeshi Kamio ,  Masami Terashima ,  Isao Arisaka ,  Soichiro Kemmochi ,  Hideo Hirasawa

Inventor： Tadakatsu Shimada ,  Dai Inoue ,  Hiroshi Oyamada ,  Kazuhisa Hatayama ,  Hiroshi Machida ,  Tetsuya Otosaka ,  Fumio Saitoh ,  Yasuhiro Nakashima ,  Takeshi Kamio ,  Masami Terashima ,  Isao Arisaka ,  Soichiro Kemmochi ,  Hideo Hirasawa

IPC: C03B37/012 ,  C03B37/014 ,  C03C15/00 ,  C03C25/68 ,  G02B6/02

CPC classification number: C03B37/01228 ,  C03B37/01446 ,  C03B37/01466 ,  C03B37/01486 ,  C03C15/00 ,  C03C25/68

Abstract: A method for manufacturing a base material for an optical fiber, includes steps of: holding a bar material by a support member; and adjusting to reduce a difference between an axis of the bar material and a rotational axis of the support member. Furthermore, an optical fiber base material grasping apparatus for holding a bar material having an axis, includes: a support member having a center axis, the support member being rotatable around the center axis; and an adjusting mechanism for reducing a difference between the axis of the bar material and the central axis of the support member.

Abstract translation: 一种制造光纤用基材的方法，包括以下步骤：通过支撑部件保持棒材; 并且调节以减小所述条形材料的轴线和所述支撑构件的旋转轴线之间的差异。 此外，用于保持具有轴线的棒材的光纤基材抓持装置包括：具有中心轴线的支撑构件，所述支撑构件能够围绕中心轴线旋转; 以及用于减小棒材的轴线与支撑构件的中心轴线之间的差异的调节机构。

公开(公告)号：US20050109064A1

公开(公告)日：2005-05-26

申请号：US10973236

申请日：2004-10-27

Applicant: Junichiro Takei ,  Tadakatsu Shimada ,  Hideo Hirasawa

Inventor： Junichiro Takei ,  Tadakatsu Shimada ,  Hideo Hirasawa

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03B37/07

CPC classification number: C03B37/01486

Abstract: An apparatus for manufacturing a glass-base-material, which is a base material of an optical fiber, includes a driving unit that drives a glass rod around an axis of the glass rod; a burner for accumulating glass soot around outside surface of the glass rod, which is driven by the driving unit, to form the glass-base-material; a weight-deducting unit, on which the driving unit is mounted, for deducting a predetermined weight from a total weight of the driving unit and the glass-base-material formed by the burner; and a measuring unit provided under the weight-deducting unit for measuring the total weight, from which the predetermined weight is deducted by the weight-deducting unit.