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    Electromagnetic wave absorbers of silicon carbide fibers
    4.
    发明授权
    Electromagnetic wave absorbers of silicon carbide fibers 失效
    碳化硅纤维电磁波吸收体

    公开(公告)号：US4726980A

    公开(公告)日：1988-02-23

    申请号：US22945

    申请日：1987-03-06

    申请人： Toshikatsu Ishikawa ,  Haruo Teranishi ,  Hiroshi Ichikawa ,  Kenji Ushikoshi

    发明人： Toshikatsu Ishikawa ,  Haruo Teranishi ,  Hiroshi Ichikawa ,  Kenji Ushikoshi

    IPC分类号： H01Q17/00 ,  B32B7/00

    CPC分类号： H01Q17/005 ,  Y10T428/24942 ,  Y10T428/2918 ,  Y10T442/3415 ,  Y10T442/3528

    摘要： An electromagnetic wave absorber comprising a surface layer made of a composite of fibers having an electrical specific resistance of more than 10.sup.4 .OMEGA.cm and a resin, and a wave absorbing layer made of a composite containing silicon carbide fibers having an electrical specific resistance of from 10.sup.-2 to 10.sup.4 .OMEGA.cm. The composite used in the surface layer may be prepared, for example, by impregnating the resin in between the fibers after they have been treated to be a woven cloth, mat or felt or unidirectionally arranged fibers. If a wave absorbing layer is to be made of a composite containing the silicon carbide fibers and a resin, then the composite may be prepared in the same way as above.

    摘要翻译： 一种电磁波吸收体，包括由电阻率大于104欧母马克的纤维的复合材料制成的表面层和树脂，以及由含有电阻率为10的碳化硅纤维的复合材料制成的波浪吸收层 -2至104欧米加厘米。 在表层中使用的复合材料可以例如通过将树脂浸渍在纤维之后，将它们处理成编织布，毡或毛毡或单向布置的纤维之后来制备。 如果波浪吸收层由含有碳化硅纤维和树脂的复合材料制成，则可以以与上述相同的方式制备复合材料。

    Electromagnetic wave absorbers of silicon carbide fibers
    5.
    发明授权
    Electromagnetic wave absorbers of silicon carbide fibers 失效
    碳化硅纤维电磁波吸收体

    公开(公告)号：US4507354A

    公开(公告)日：1985-03-26

    申请号：US477249

    申请日：1983-03-21

    申请人： Toshikatsu Ishikawa ,  Hiroshi Ichikawa ,  Yoshikazu Imai ,  Tokuji Hayase ,  Yoichi Nagata

    发明人： Toshikatsu Ishikawa ,  Hiroshi Ichikawa ,  Yoshikazu Imai ,  Tokuji Hayase ,  Yoichi Nagata

    IPC分类号： H05K9/00 ,  H01Q17/00 ,  B32B7/00

    CPC分类号： H01Q17/005 ,  Y10S428/902 ,  Y10T428/2918 ,  Y10T428/31678 ,  Y10T442/3415 ,  Y10T442/50

    摘要： An electromagnetic wave absorber comprising an electromagnetic wave absorbing layer consisting essentially of silicon carbide fibers, which layer may be applied to a metal plate. The wave absorber comprising the absorbing layer-applied metal plate exerts wave absorption expressed in terms of a wave attenuation which is at least 10 dB higher than the inherent attenuation caused by reflection of the wave by the absorbing layer-free original metal plate, the wave used being one which has a frequency of 8-16 GHz. Further, the silicon carbide fibers may be made into woven cloths, mat felts or the like which are laminated together and then composited with a synthetic resin or ceramics to prepare the wave absorbing layer.

    摘要翻译： 一种电磁波吸收体，包括基本上由碳化硅纤维组成的电磁波吸收层，该层可施加到金属板上。 包括吸收层施加的金属板的波吸收器产生波浪衰减表示的波吸收，波浪衰减比由无吸收层的原始金属板的波的反射引起的固有衰减高至少10dB，波 使用的频率为8-16 GHz。 此外，碳化硅纤维可以制成层压在一起的织布，毡毡等，然后与合成树脂或陶瓷复合以制备波浪吸收层。

    Manufacturing sintered body of silicon carbide by using SiC whiskers in a multiple heating step process
    7.
    发明授权
    Manufacturing sintered body of silicon carbide by using SiC whiskers in a multiple heating step process 失效
    通过在多次加热步骤中使用SiC晶须制造碳化硅烧结体

    公开(公告)号：US5234675A

    公开(公告)日：1993-08-10

    申请号：US769506

    申请日：1991-10-01

    申请人： Hiroshi Ichikawa ,  Yoshikazu Imai

    发明人： Hiroshi Ichikawa ,  Yoshikazu Imai

    IPC分类号： C04B35/571 ,  C04B35/622 ,  C04B41/45 ,  D01F9/10

    CPC分类号： D01F9/10 ,  C04B35/571 ,  C04B35/62227 ,  C04B41/4584

    摘要： An organosilicon high molecular compound having a skeleton of silicon and carbon or a compound obtained by polymerization of an organometallic compound and the organosilicon high molecular compound is melted into a fiber, then the fiber is antimelt-treated in an oxidizing atmosphere, and the antimelt-treated yarns are thereafter heated in an atmosphere of inert gas to obtain a fiber of silicon carbide containing 2 to 20% by volume of oxygen. This fiber is further sintered in an atmosphere of inert gas at a temperature of 1400 to 2100 deg. C. and a pressure of 300 to 3000 kg/cm.sup.2. A sintered body of silicon carbide having an excellent bending strength is obtained without the use of a sintering agent or a binder. A fiber of silicon carbide having a predetermined oxygen content and a thin amorphous carbon layer thereon is obtained from the starting fiber by antimelt-treating and then heating in an atmosphere of a mixture of an inert gas and a hydrocarbon gas. Silicon carbide powder is mixed with the fiber thus obtained and the mixture is then heated in an atmosphere of inert gas under pressure. The sintered body thus obtained has a high strength and a remarkably small decrease in strength at high temperature.

    摘要翻译： 将具有硅和碳骨架的有机硅高分子化合物或通过有机金属化合物和有机硅高分子化合物的聚合得到的化合物熔融成纤维，然后将纤维在氧化气氛中进行电镀处理， 然后在惰性气体气氛中加热处理后的纱线，得到含有2〜20体积％氧气的碳化硅纤维。 该纤维在1400〜2100℃的惰性气氛中进一步烧结。 并且压力为300至3000kg / cm2。 在不使用烧结剂或粘合剂的情况下，获得具有优异弯曲强度的碳化硅烧结体。 通过抗熔融处理从起始纤维获得具有预定氧含量的碳化硅纤维和其上的薄无定形碳层，然后在惰性气体和烃气体的混合气氛中加热。 将碳化硅粉末与由此获得的纤维混合，然后将混合物在惰性气体气氛中加压。 这样得到的烧结体的强度高，在高温下的强度明显降低。

    Roller device
    10.
    发明授权
    Roller device 有权
    滚筒装置

    公开(公告)号：US08939446B2

    公开(公告)日：2015-01-27

    申请号：US13949709

    申请日：2013-07-24

    申请人： Hiroshi Ichikawa

    发明人： Hiroshi Ichikawa

    IPC分类号： B65H3/06 ,  B65H3/32 ,  B65H5/06

    CPC分类号： B65H3/32 ,  B65H3/0638 ,  B65H3/0676 ,  B65H3/0684 ,  B65H5/06 ,  B65H2402/31 ,  B65H2402/40 ,  B65H2402/515 ,  B65H2404/17 ,  B65H2601/324

    摘要： A roller device may include a main body, a first roller configured to rotate around an first axis line extending in a predetermined axial direction, the first roller including an end portion in the axial direction, and a supporting member including a first supporting portion configured to rotatably support the end portion of the first roller and an engaging portion configured to engage the main body. Further, the main body including a regulating portion disposed inside the movable range when the supporting member is located at a third position and disposed outside the movable range when the supporting member is located at a fourth position.

    摘要翻译： 辊装置可以包括主体，第一辊被构造成围绕沿预定轴向延伸的第一轴线旋转，第一辊包括沿轴向方向的端部，以及支撑构件，其包括第一支撑部分， 可旋转地支撑第一辊的端部和配置成接合主体的接合部。 此外，当支撑构件位于第四位置时，主体包括设置在可动范围内的调节部分，当支撑构件位于第三位置并且设置在可动范围之外时。