公开(公告)号：US06180266B2

公开(公告)日：2001-01-30

申请号：US09353636

申请日：1999-07-15

申请人： Hirokuni Amano ,  Yuji Shimatani ,  Kiyoshi Nakagawa ,  Syunichi Asakura

发明人： Hirokuni Amano ,  Yuji Shimatani ,  Kiyoshi Nakagawa ,  Syunichi Asakura

IPC分类号： B32B1500

CPC分类号： B32B15/013 ,  C22C38/22 ,  C22C38/24 ,  C22C38/30 ,  Y10S148/905 ,  Y10S428/932 ,  Y10S428/938 ,  Y10T407/27 ,  Y10T428/12639 ,  Y10T428/12806 ,  Y10T428/12951

摘要： A cutting tool having cutting edges made of a high speed tool steel exhibiting very high wear and anti-chipping resistances, and sufficient toughness is provided. The high speed tool steel consists essentially of by weight C:0.6 to 1.8%, Si:1.2% max, Mn:0.5% max, Cr:3.5 to 5.0%, Mo:10% max, W:21% max, V:2 to 4% and Co:7 to 10%, the balance being Fe and incidental impurities, and the steel of the cutting edge comprise MC-type carbide grains each having a maximum equal value diameter of a circle ranging substantially 5 to 14 &mgr;m, and the MC-type carbide grains having an equal value diameter of the circle ranging substantially 5 to 14 &mgr;m have a ratio between short and long diameters ranging over substantially 0.3.

摘要翻译： 提供具有由高速工具钢制成的切削刃的切削工具，其具有非常高的磨损和抗切削阻力，并且具有足够的韧性。 高速工具钢主要由重量C：0.6〜1.8％，Si：1.2％以上，Mn：0.5％以上，Cr：3.5〜5.0％，Mo：10％以上，W：21％以上，V： 2〜4％，Co：7〜10％，余量为Fe和附带杂质，切削刃的钢包含MC型碳化物，每个MC型碳化物的最大直径为5〜14μm， 并且具有基本上为5至14μm的圆的等直径的MC型碳化物颗粒具有基本上在0.3以上的短径和长径之间的比率。

公开(公告)号：US5574717A

公开(公告)日：1996-11-12

申请号：US442145

申请日：1995-05-16

申请人： Masahito Tomizawa ,  Yoshiaki Yamabayashi ,  Yukio Kobayashi ,  Kiyoshi Nakagawa ,  Ken-ichi Yagisawa

发明人： Masahito Tomizawa ,  Yoshiaki Yamabayashi ,  Yukio Kobayashi ,  Kiyoshi Nakagawa ,  Ken-ichi Yagisawa

IPC分类号： H03M13/00 ,  H03M13/15 ,  H04J3/14 ,  H04Q11/04 ,  H04L1/00

CPC分类号： H04J3/14 ,  H03M13/00 ,  H03M13/151 ,  H04J2203/0089

摘要： In an optical transmission system applicable to a SDH network, communication between two line terminating equipments is performed in a form of a STM frame composed of a SOH field and a payload, which is determined by CCITT recommendations. The line terminating equipment provides a FEC circuit which is preferably arranged at a location between MSP and MST function blocks. The FEC circuit is designed to perform coding/decoding operations, using a cyclic Hamming code, directly on each AU-4 message derived from the STM frame. Otherwise, the FEC circuit performs operations on each k-bit interleaved AU-4 message (where `k` is an integer larger than 1). Check bits generated by a FEC coding circuit are written into undefined byte areas in a MSOH field, and error correcting is performed at a decoder circuit on the basis of embedded check bits, therefore FEC operations are performed within a multiplex-section layer. A FEC processing circuit is constituted by shift registers each of which is connected by exclusive-or logic so as to execute FEC processing calculation generating a remainder by a generator polynomial. For a FEC code on direct AU-4 message, the FEC processing circuit in parallel configuration for lowering an operational clock rate is determined by a matrix form calculation, which creates an output vector indicating a set of shift registers' data in a future clock timing from an input vector consisting of data stream in message and initial shift registers' values.

摘要翻译： 在适用于SDH网络的光传输系统中，以由CCITT建议确定的SOH字段和有效载荷构成的STM帧的形式执行两线路终端设备之间的通信。 线路终端设备提供优选地布置在MSP和MST功能块之间的位置的FEC电路。 FEC电路被设计为使用循环汉明码直接在从STM帧导出的每个AU-4消息上执行编码/解码操作。 否则，FEC电路对每个k位交织的AU-4消息（其中'k'是大于1的整数）执行操作。 由FEC编码电路生成的校验位被写入到MSOH字段中的未定义的字节区域中，并且在解码器电路上基于嵌入的校验位执行纠错，因此在多路复用部分层内执行FEC操作。 FEC处理电路由移位寄存器构成，每个移位寄存器通过异或逻辑连接，以执行通过生成多项式生成余数的FEC处理计算。 对于用于直接AU-4消息的FEC码，用于降低操作时钟速率的并行配置的FEC处理电路由矩阵形式计算确定，其形成指示未来时钟定时中的一组移位寄存器数据的输出向量 从由消息中的数据流和初始移位寄存器值组成的输入向量。

公开(公告)号：US5574534A

公开(公告)日：1996-11-12

申请号：US547664

申请日：1995-10-24

申请人： Seiji Nogiwa ,  Kazuo Aida ,  Kiyoshi Nakagawa

发明人： Seiji Nogiwa ,  Kazuo Aida ,  Kiyoshi Nakagawa

IPC分类号： G01M11/00 ,  H04B10/07 ,  H04B10/2507 ,  H01S3/00 ,  H04B10/02 ,  H04B10/08

CPC分类号： H04B10/291 ,  H04B10/2912

摘要： A noise determination apparatus for simple and precise determination of a noise factor of an optical fiber amplifier is presented. An optical pulse Pin is inputted via an optical coupler 2 into an optical looping circuit 14, and for every loop around the circuit 14, the spontaneous emission light generated in a rare-earth doped optic fiber amplifier 4 is integrated. The amplitude of the light intensity of the optical pulse train outputted from the optical splitter 3 decreases as the looping cycles are increased, and ultimately, the light intensity of the accumulated spontaneous emission light becomes equal to that of the optical pulse train. The pulse train outputted from the photodetector 7 diminishes. The number of pulses in the looping process from the initial pulse train to the expiration event are counted by means of a pulse counting device 8. Based on the count, the noise factor NF of the optical amplifier 4 is calculated using the gain of the optical amplifier 4, the bandwidth of the bandpass filter 5, oscillation frequency of light and the pulse intensity.

摘要翻译： 提出了用于简单且精确地确定光纤放大器的噪声因子的噪声确定装置。 光脉冲Pin通过光耦合器2输入到光环路电路14中，并且对于围绕电路14的每个环路，在稀土掺杂光纤放大器4中产生的自发发射光被集成。 从分光器3输出的光脉冲串的光强度的振幅随着循环周期的增加而减小，最终累积的自发发光的光强度变得等于光脉冲序列的光强度。 从光电检测器7输出的脉冲串减少。 通过脉冲计数装置8对从初始脉冲序列到到期事件的循环处理中的脉冲数进行计数。基于该计数，使用光学器件的增益来计算光放大器4的噪声系数NF 放大器4，带通滤波器5的带宽，光的振荡频率和脉冲强度。

公开(公告)号：US5558487A

公开(公告)日：1996-09-24

申请号：US371202

申请日：1995-01-11

申请人： Kiyoshi Nakagawa

发明人： Kiyoshi Nakagawa

IPC分类号： B65G49/07 ,  B25J9/06 ,  B25J18/02 ,  B65G47/90 ,  G11B17/22 ,  H01L21/677 ,  H01L21/687 ,  B65G65/00

CPC分类号： H01L21/68707 ,  Y10S414/13 ,  Y10S414/137 ,  Y10T74/1888 ,  Y10T74/18992 ,  Y10T74/20305

摘要： In an article transporting system, a first linear moving arm and a second linear moving arm are juxtaposed to each other so as to be moved linearly while keeping a parallel positional relationship with each other. First end portions of the linear moving arms are coupled to an article transporting unit through first and second links. A linear drive mechanism is provided for linearly moving the article transporting unit in a direction perpendicular to the moving direction of the linear moving arms by the linear movement of the first and second linear moving arms. The first and second linear moving arms are synchronously linearly moved in opposite directions to each other. In this case, to avoid an unstable posture of the article transporting unit during the movement, a posture maintaining device is provided between one of the first and second linear moving arms and the article transporting unit. It is possible to save a space for the article transporting work by using the two linear moving arms and the link mechanism.

摘要翻译： 在物品传送系统中，第一线性移动臂和第二线性移动臂彼此并置，以便在保持彼此平行的位置关系的同时被线性地移动。 线性移动臂的第一端部通过第一和第二连杆联接到物品传送单元。 提供一种线性驱动机构，用于通过第一和第二线性移动臂的线性运动来使物品传送单元沿垂直于线性移动臂的移动方向的方向线性移动。 第一和第二线性移动臂彼此相反方向同步地线性移动。 在这种情况下，为了避免运动过程中物品运送单元的姿势不稳定，姿势维持装置设置在第一和第二直线运动臂之间和物品运送单元之间。 通过使用两个直线移动臂和连杆机构，可以节省用于物品输送作业的空间。

公开(公告)号：US5475529A

公开(公告)日：1995-12-12

申请号：US443020

申请日：1995-05-17

申请人： Tatuhiko Takatu ,  Kazuo Aida ,  Kiyoshi Nakagawa

发明人： Tatuhiko Takatu ,  Kazuo Aida ,  Kiyoshi Nakagawa

IPC分类号： G02F1/35 ,  H01S3/13 ,  H01S3/131 ,  H04B10/07 ,  H04B10/29 ,  H04B10/293

CPC分类号： H01S3/1301 ,  H01S3/06754 ,  H01S3/10015

摘要： A high fidelity optical amplifier having a stable amplification gain is presented. The problem of signal distortion in an output optical signal caused by an imbalance of light energy generation and consumption within the optical fiber is resolved by generating a delayed correction signal to be used in a feedback control circuitry. An incoming optical signal is split into two signals: one split signal is forwarded to a photo-detector element for generation of the correction signal while the other split signal is forwarded to a signal delay circuit. The optical delay circuit delays the timing of inputting the correction signal into output optical fiber for a specific duration of time to attain a full amplification gain within the optical fiber. The correction signal generation circuit performs differentiation of an electrical input signal followed by detection and selection of a maximum amplitude over a standard reference voltage. The selected signal acts as trigger to the pulse generation circuit and waveform correction circuit in conjunction with a variable-gain amplifier to provide a correction signal to maintain the amplification gain of the optical fiber at a constant level. The resulting output signal is distortion-free and stable over a prolonged period of time.

摘要翻译： 提出了具有稳定放大增益的高保真光放大器。 通过产生在反馈控制电路中使用的延迟校正信号来解决由光纤内的光能产生和消耗不平衡引起的输出光信号中的信号失真问题。 输入光信号被分成两个信号：一个分离信号被转发到光电检测器元件以产生校正信号，而另一个分离信号被转发到信号延迟电路。 光延迟电路将校正信号输入输出光纤的定时延迟特定持续时间以获得光纤内的全放大增益。 校正信号发生电路执行电输入信号的微分，随后检测并选择最大幅度超过标准参考电压。 所选择的信号作为触发脉冲发生电路和波形校正电路结合可变增益放大器提供校正信号，以将光纤的放大增益保持在恒定水平。 所产生的输出信号在长时间内无失真和稳定。

公开(公告)号：US5204403A

公开(公告)日：1993-04-20

申请号：US909157

申请日：1992-07-06

申请人： Tsunekatsu Furuta ,  Ken'ichi Kamemaru ,  Kiyoshi Nakagawa

发明人： Tsunekatsu Furuta ,  Ken'ichi Kamemaru ,  Kiyoshi Nakagawa

IPC分类号： D06N3/00 ,  D06N3/14

CPC分类号： D06N3/0063 ,  D06N3/14 ,  D06N3/142 ,  Y10T428/249986

摘要： A water-vapor permeable, waterproof coated fabric having a fibrous base fabric, and a porous film coated on one side of the base fabric. The porous film comprises a synthetic polymer composed mainly of a polyurethane resin and inorganic fine particles having a mean particle diameter of not more than 0.1 .mu.m. In the porous film, microcells intercommunicate in the thicknesswise direction of the film to form a honeycomb skin core structure having a diameter of 1 to 20 .mu.m. The porous film has a multiplicity of micropores having a diameter of not more than 1 .mu.m. The coated fabric has waterproof and water-vapor permeability characteristics sufficient to meet such performance characteristics required in various applications, such as rainwears, military garments, and sportswears.

公开(公告)号：US5083874A

公开(公告)日：1992-01-28

申请号：US506906

申请日：1990-04-10

申请人： Kazuo Aida ,  Shigendo Nishi ,  Masatoshi Saruwatari ,  Kiyoshi Nakagawa

发明人： Kazuo Aida ,  Shigendo Nishi ,  Masatoshi Saruwatari ,  Kiyoshi Nakagawa

IPC分类号： H04B10/291 ,  H04B10/293 ,  H04B10/294

CPC分类号： H04B10/2912 ,  H04B10/291 ,  H04B10/2935 ,  H04B10/2941 ,  H04B2210/258

摘要： At least one optical repeater is connected in series to an optical signal transmission fiber of an optical fiber cable interconnecting transmitting and receiving terminals, and the optical repeater has an optical amplifier which is excited by pump light to amplify signal light. The pump light is supplied from the outside of the optical repeater, and the pump light supplied is input into the optical amplifier via at least one of its input end and output end. The optical repeater may include an optical divider for dividing the pump light supplied thereto into two, which are input into the optical amplifier via its input end and output end, respectively.

公开(公告)号：US5005937A

公开(公告)日：1991-04-09

申请号：US506832

申请日：1990-04-10

申请人： Kazuo Aida ,  Shigendo Nishi ,  Kiyoshi Nakagawa

发明人： Kazuo Aida ,  Shigendo Nishi ,  Kiyoshi Nakagawa

IPC分类号： H04B10/27 ,  H04B10/272 ,  H04B10/278 ,  H04B10/291 ,  H04B10/293

CPC分类号： H04B10/278 ,  H04B10/27 ,  H04B10/2725 ,  H04B10/291 ,  H04B10/2912 ,  H04B10/2931 ,  H04B10/2939

摘要： In optical branching equipment which is supplied with an optical signal of a first wavelength band from a trunk line terminal equipment via a trunk line cable and is inserted in the trunk line, the optical signal is normally provided to the trunk line cable after being bypassed from a branching circuit to branch line terminal equipment connected to a branch line cable, and when trouble develops in the branch line, the optical signal is delivered to the trunk line cable via a short circuit. In the short circuit there is inserted an optical limiter amplifier which is capable of amplifying light of the first and second wavelength bands. Normally the optical limiter amplifier is saturated by control light of the second wavelength supplied from the branch line terminal equipment via the branch line cable, and consequently, the optical signal of the first wavelength band is suppressed. When the supply of the control light is stopped by some cause, the optical limiter amplifier amplifies the optical signal of the wavelength band provided to the short circuit and provides the amplified optical signal to the trunk line cable.

公开(公告)号：US4262481A

公开(公告)日：1981-04-21

申请号：US13325

申请日：1979-02-21

申请人： Yukio Otaki ,  Kazuo Umeda ,  Kiyoshi Nakagawa

发明人： Yukio Otaki ,  Kazuo Umeda ,  Kiyoshi Nakagawa

IPC分类号： D02G1/02 ,  D02G3/04 ,  D02G3/24

CPC分类号： D02G1/0286 ,  Y10S57/908

摘要： Spun yarn-like high bulky textured polyester yarns comprised of two types of polyester multifilament component yarns A and B and having broken filaments, in which textured yarns there is a difference in length between the component yarns A and B, whereby very high bulkiness is imparted thereto. The individual filaments of the component yarn A have a fineness and an intrinsic viscosity less than those of the component yarns B. The spun yarn-like high bulky textured yarns have satisfactory pilling resistance and frosting resistance.The spun yarn-like high bulky textured yarns can be produced by a process comprising doubling two types of undrawn polyester multifilament yarns having different properties through an intertwisting regulative device and simultaneously draw-texturing the doubled undrawn yarns.

摘要翻译： 由两种类型的聚酯复丝组分纱线A和B组成并具有断裂的长丝的纱线状高膨松织构的聚酯纱线，其中变形纱线在组分纱线A和B之间的长度差异，由此赋予非常高的膨松度 到此。 组分纱线A的单根细丝的细度和特性粘度比组分纱线B小。短纤维状高膨松变形纱线具有令人满意的起球抗性和耐结霜性。 可以通过包括通过缠结调节装置对具有不同性质的两种类型的未拉伸聚酯复丝纱线进行加倍以及同时拉伸双重未拉伸纱线的方法来制造细纱状高膨松变形纱线。

公开(公告)号：US4035441A

公开(公告)日：1977-07-12

申请号：US482463

申请日：1974-06-24

申请人： Tadakazu Endo ,  Masanori Takeuchi ,  Tuneo Hanada ,  Kiyoshi Nakagawa ,  Hideo Komatsu ,  Itaru Nakamura

发明人： Tadakazu Endo ,  Masanori Takeuchi ,  Tuneo Hanada ,  Kiyoshi Nakagawa ,  Hideo Komatsu ,  Itaru Nakamura

IPC分类号： D01D1/06 ,  D01F6/92 ,  D01F8/14 ,  C08G39/08

CPC分类号： D01F8/14 ,  D01D1/065 ,  D01F6/92 ,  Y10S260/17 ,  Y10S264/29

摘要： A polyester filament in which a polyether-polyester block copolymer is dispersed as fine striae along the filament axis, at least one of which is substantially endless. Process for preparing the same includes a melt spinning apparatus with static mixing elements interposed between separate molten polymer feed passageways and spinneret holes.

摘要翻译： 聚酯长丝，其中聚醚 - 聚酯嵌段共聚物沿着长丝轴分散为细条纹，其中至少一个基本上是环状的。 制备该方法的方法包括将静态混合元件置于分开的熔融聚合物进料通道和喷丝孔之间的熔融纺丝设备。