公开(公告)号：US5188894A

公开(公告)日：1993-02-23

申请号：US575955

申请日：1990-08-31

申请人： Yasuhiro Yamada ,  Hidemasa Honda ,  Haruki Yamasaki ,  Susumu Shimizu

发明人： Yasuhiro Yamada ,  Hidemasa Honda ,  Haruki Yamasaki ,  Susumu Shimizu

IPC分类号： D01F8/18 ,  D01F9/145

CPC分类号： D01F9/145 ,  D01F8/18 ,  Y10T428/2918 ,  Y10T428/2922 ,  Y10T428/2924 ,  Y10T428/2929 ,  Y10T428/2931

摘要： Disclosed herein is curled or uncurled composite carbon fiber which comprises part of optically isotropic carbon fiber and balance of optically anisotropic one and a process for preparing the same. The composite carbon fiber possesses the excellent characteristics by complementing the respective defects by means of the respective characteristics of the both kinds of the carbon fiber.

公开(公告)号：US5547363A

公开(公告)日：1996-08-20

申请号：US462544

申请日：1995-06-05

申请人： Yasuyuki Takai ,  Tetsuo Yamada ,  Toshifumi Kawamura ,  Susumu Shimizu ,  Haruki Yamasaki

发明人： Yasuyuki Takai ,  Tetsuo Yamada ,  Toshifumi Kawamura ,  Susumu Shimizu ,  Haruki Yamasaki

IPC分类号： D01D4/00 ,  D01D4/02 ,  D01F9/14 ,  D01F9/32

CPC分类号： D01F9/322 ,  D01D4/02

摘要： Disclosed herein is a spinning nozzle having one or more discharge openings and one or more introduction openings located upstream the discharge openings for producing pitch-based carbon fibers characterized by the presence of one or more spiral members in each introduction openings. According to the nozzle of the present invention, part of the pitch which is introduced to the introduction opening flows down along the spiral member while the flow of the pitch is affected by the spiral member. The remaining pitch flows into the discharge opening without being in contact with the spiral member, and then both are spun after being mixed through the discharge opening to prepare carbon fibers having a random structure. Especially, the carbon fibers of higher performances can be prepared when a spiral having uneven outer diameters is employed.

摘要翻译： 本文公开了一种纺丝喷嘴，其具有一个或多个排出口和位于排出口上游侧的一个或多个引入开口，用于生产沥青基碳纤维，其特征在于在每个导入开口中存在一个或多个螺旋构件。 根据本发明的喷嘴，引入到引入口的间距的一部分沿着螺旋构件向下流动，而螺距的流动受螺旋构件的影响。 剩余的沥青不与螺旋构件接触而流入排放口，然后在通过排出口混合后将其两者旋转以制备具有随机结构的碳纤维。 特别地，当采用具有不均匀外径的螺旋时，可以制备更高性能的碳纤维。

公开(公告)号：US5277850A

公开(公告)日：1994-01-11

申请号：US952642

申请日：1992-09-28

申请人： Eiji Kitajima ,  Takashi Oyama ,  Eiji Maruden ,  Hirokazu Teraoka ,  Haruki Yamasaki ,  Susumu Shimizu

发明人： Eiji Kitajima ,  Takashi Oyama ,  Eiji Maruden ,  Hirokazu Teraoka ,  Haruki Yamasaki ,  Susumu Shimizu

IPC分类号： D01F9/145 ,  D01F9/12 ,  D02G3/02

CPC分类号： D01F9/145

摘要： The present invention relates to a carbon fiber bundle includes a regular coil-shaped fiber bundle and having excellent stretch characteristic. A process for producing a coil-shaped carbon fiber bundle according to the present invention includes the steps of compositing at least two kind of pitches to spin them as single fibers, bundling the thus spun single fibers to form a fiber bundle, then infusibilizing the resulting fiber bundler under tension and carbonizing the fiber bundle.

摘要翻译： 本发明涉及碳纤维束，其包括规则的线圈状纤维束，并且具有优异的拉伸特性。 根据本发明的线圈状碳纤维束的制造方法包括将至少两种间距合成以将其旋转为单纤维的步骤，将由此纺出的单纤维捆扎以形成纤维束，然后将所得到的纤维束混合 纤维束在拉伸和碳化纤维束。

公开(公告)号：US5204030A

公开(公告)日：1993-04-20

申请号：US793461

申请日：1991-11-18

申请人： Eiji Kitajima ,  Takashi Oyama ,  Makoto Kitai ,  Haruki Yamasaki ,  Susumu Shimizu

发明人： Eiji Kitajima ,  Takashi Oyama ,  Makoto Kitai ,  Haruki Yamasaki ,  Susumu Shimizu

IPC分类号： D01F9/14 ,  D01D5/098 ,  D01F9/32

CPC分类号： D01D5/0985 ,  D01F9/32

摘要： A method for producing pitch-type carbon fiber, comprising the steps of discharging, from a spinning nozzle, a spinning pitch comprising an optically isotropic pitch and/or optically anisotropic pitch, maintained at such a temperature that the spinning pitch can have a viscosity of 20 poises or less, to form pitch fiber, while jetting a gas preheated to a temperature of 100.degree. C. lower than the temperature at which the spinning pitch can have a viscosity of 20 poises or less, or higher from the periphery of the spinning nozzle in the same direction as the discharging direction of the spinning pitch and parallel to the discharged pitch fiber to give extremely fine fiber having an average diameter of 5 .mu.m or less, and subjecting the thus spun fine fiber to infusibilization and carbonization.

公开(公告)号：US5183603A

公开(公告)日：1993-02-02

申请号：US780301

申请日：1991-10-22

申请人： Eiji Kitajima ,  Takashi Oyama ,  Eiji Maruden ,  Hirokazu Teraoka ,  Haruki Yamasaki ,  Susumu Shimizu

发明人： Eiji Kitajima ,  Takashi Oyama ,  Eiji Maruden ,  Hirokazu Teraoka ,  Haruki Yamasaki ,  Susumu Shimizu

IPC分类号： D01F9/145

CPC分类号： D01F9/145

摘要： The present invention relates to a carbon fiber bundle comprising a regular coil-shaped fiber bundle and having excellent stretch characteristic. A process for producing a coil-shaped carbon fiber bundle according to the present invention comprises the steps of compositing at least two kind of pitches to spin them as single fibers, bundling the thus spun single fibers to form a fiber bundle, then infusibilizing the resulting fiber bundle under tension and carbonizing the fiber bundle.

公开(公告)号：US07217388B2

公开(公告)日：2007-05-15

申请号：US10276322

申请日：2002-04-12

申请人： Haruki Yamasaki

发明人： Haruki Yamasaki

IPC分类号： B22F3/10

CPC分类号： C22C32/0021 ,  B22F1/0081 ,  B22F1/0088 ,  B22F2009/041 ,  B22F2009/0848 ,  B22F2998/10 ,  C03B5/1672 ,  C03B5/1675 ,  C22C5/04 ,  B22F3/10 ,  B22F3/17 ,  B22F2201/20 ,  B22F9/082 ,  B22F9/04 ,  B22F9/026 ,  C22C1/1078

摘要： The present invention provides a method in which a strengthened platinum material can be produced, in which no blisters occur on the surface of the material even after heat treatment of 1,400° C. or higher and a metal oxide such as zirconium oxide is finely dispersed, and which has excellent high-temperature creep properties, when the strengthened platinum material is produced using a melt-sprayed platinum alloy powder. The method for producing a strengthened platinum material includes oxidizing a platinum alloy powder obtained by melt-spray, wet-milling the platinum alloy powder by adding an organic solvent, sintering, and forging, wherein the wet-milled platinum alloy fine powder is charged into a heat resistant container and heated to 1,200 to 1,400° C. in a vacuum atmosphere to be subjected to degassing.

摘要翻译： 本发明提供一种方法，其中即使在1400℃或更高的热处理之后也可以在材料的表面上不发生起泡，并且诸如氧化锆的金属氧化物被细分散，可以制造强化的铂材料， 并且当使用熔喷铂合金粉末制造强化的铂材料时，其具有优异的高温蠕变性能。 强化铂材料的制造方法包括：将通过熔融喷涂获得的铂合金粉末进行氧化，加入有机溶剂，烧结和锻造湿法研磨铂合金粉末，其中将湿磨的铂合金细粉末装入 耐热容器，并在真空气氛中加热至1,200至1400℃以进行脱气。

公开(公告)号：US20120015210A1

公开(公告)日：2012-01-19

申请号：US13258500

申请日：2010-05-11

申请人： Haruki Yamasaki

发明人： Haruki Yamasaki

IPC分类号： B32B15/01 ,  B23K20/04 ,  B23K31/02

CPC分类号： C03B5/1675 ,  B32B15/018 ,  C03B5/43 ,  C22C1/10 ,  C22C5/04 ,  Y10T428/12632

摘要： There is provided a technique for producing an oxide-dispersion-strengthened platinum material excellent in high-temperature creep properties and having high elongation properties. The material of the present invention has a structure comprising concentrated layers in which an additive metal for oxide-dispersion strengthening or a metal oxide thereof is concentrated and platinum layers essentially consisting of platinum in which the additive metal or the metal oxide thereof is dilute, the concentrated layers and the platinum layers being alternately laminated in six pairs or more. In addition, the outermost surface of the material is preferably the platinum layer or the concentrated layer.

摘要翻译： 本发明提供一种高温蠕变性优异，伸长率高的氧化物分散强化铂材料的制造方法。 本发明的材料具有这样的结构，其中浓缩了用于氧化物分散强化的添加金属或其金属氧化物的浓缩层，并且其中添加金属或其金属氧化物被稀释的铂基本上由铂组成， 浓缩层和铂层交替层叠成六对以上。 此外，材料的最外表面优选为铂层或浓缩层。

公开(公告)号：US5181526A

公开(公告)日：1993-01-26

申请号：US688032

申请日：1991-04-19

申请人： Haruki Yamasaki

发明人： Haruki Yamasaki

IPC分类号： A61N1/05

CPC分类号： A61N1/05

摘要： Disclosed herein is an electrode for human heart pacemaker comprising an electrode substrate prepared by Pt or a Pt alloy, Ti or a Ti alloy and a mixture of platinum and a platinum group metal oxide coated thereon, the upper portion of the electrode being comprised of mesh or porous.Since the physical dimensions of the electrodes can be made smaller, the substantial surface area can be made larger and the catalytic performance can be elevated because of the coating on the electrode of the present invention. The electrode has remarkably low polarizability, a high response characteristic from a human heart, low electric consumption, smaller input impedanco and extremely high reliability.Also disclosed is an implantable mesh electrode comprising a Pt/Ti composite prepared by coating Ti with Pt.

摘要翻译： 本文公开了一种人心脏起搏器的电极，其包括由Pt或Pt合金，Ti或Ti合金制备的电极基底，以及涂覆在其上的铂和铂族金属氧化物的混合物，电极的上部由网状物 或多孔。 由于可以使电极的物理尺寸更小，所以由于本发明的电极上的涂层，可以使实质的表面积更大，并且可以提高催化性能。 电极具有非常低的极化率，来自人心脏的高响应特性，低电耗，较小的输入阻抗和极高的可靠性。 还公开了包括通过用Pt涂覆Ti制备的Pt / Ti复合材料的可植入网状电极。

公开(公告)号：US5279781A

公开(公告)日：1994-01-18

申请号：US700596

申请日：1991-05-15

申请人： Haruki Yamasaki

发明人： Haruki Yamasaki

IPC分类号： A61N1/05 ,  C04B35/628 ,  C04B35/00

CPC分类号： A61N1/0587

摘要： Electroconductive fibers are made by melt-spin coating of chemical fibers with Pt, Ti, Ta or alloys containing of Pt, or Ti. The coated fibers are utilized in human-implantable electroconductive cloth electrodes with improved metal fatigue resistance and/or electrode uniformity.

摘要翻译： 导电纤维通过用Pt，Ti，Ta或含有Pt或Ti的合金的化学纤维的熔融旋涂来制造。 涂覆的纤维用于具有改善的金属疲劳性和/或电极均匀性的人造植入式导电布电极中。

公开(公告)号：US20060153727A1

公开(公告)日：2006-07-13

申请号：US10543596

申请日：2004-11-26

申请人： Haruki Yamasaki

发明人： Haruki Yamasaki

IPC分类号： B22F3/24

CPC分类号： C22C1/1078 ,  B22F2009/041 ,  B22F2998/10 ,  B22F2999/00 ,  C22C32/0021 ,  B22F9/08 ,  B22F9/04 ,  B22F3/1007 ,  B22F3/17 ,  B22F2201/10

摘要： [Problems]Providing a strengthened platinum material with the use of melt-sprayed platinum alloy powder and through a simpler working process, which ensures strength of weld and is excellent in high temperature creep property. [Means for Solving the Problems]In a method for producing a strengthened platinum material, comprising the steps of: adding an organic solvent and wet-milling a platinum alloy powder obtained by melt-spray; degassing the milled platinum alloy fine powder by heating; sintering the fine powder; and forging the fine powder, wherein the method further comprises subjecting a sintered body formed by the sintering to oxidation treatment; and subjecting the sintered body to compression molding.

摘要翻译： [问题]使用熔喷铂合金粉末提供强化的铂材料，并通过更简单的加工工艺，确保焊接强度，并具有优异的高温蠕变性能。 解决问题的手段在制造强化铂材料的方法中，包括以下步骤：向有机溶剂中加入湿法研磨通过熔喷法获得的铂合金粉末; 通过加热对研磨的铂合金细粉进行脱气; 烧结细粉; 并锻造所述细粉末，其中所述方法还包括使通过所述烧结形成的烧结体经受氧化处理; 并对烧结体进行压缩成形。