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    Sintered body of silicon nitride and its manufacture
    1.
    发明授权
    Sintered body of silicon nitride and its manufacture 失效
    氮化硅烧结体及其制造

    公开(公告)号：US5045513A

    公开(公告)日：1991-09-03

    申请号：US393726

    申请日：1989-08-15

    申请人： Kenichi Mizuno ,  Katsuhisa Yabuta ,  Masakazu Watanabe

    发明人： Kenichi Mizuno ,  Katsuhisa Yabuta ,  Masakazu Watanabe

    IPC分类号： C04B35/584 ,  C04B35/593

    CPC分类号： C04B35/5935

    摘要： A sintered body of silicon nitride with high density, strength, toughness, and hardness, which can be used for a structural part of an engine, etc. The sintered body of the invention includes 80 to 94 wt % Si.sub.3 N.sub.4, 2 to 10 wt % Mg compound calculated in MgO equivlent, and 2 to 10 wt % Y compound calculated in Y.sub.2 O.sub.3 equivalent. The Si.sub.3 N.sub.4 contains 5 to 40% .alpha.-phase. The sintered body is manufactured in the following steps: (a) mixing powdery Si.sub.3 N.sub.4 with a Mg compound and a Y compound in the above proportions, and then molding the mixture in which the Si.sub.3 N.sub.4 powder contains 80% or more .alpha.-phase and its grains are 1 .mu.m or less in diameter on average; (b) performing primary sintering at 1,600.degree. C. or less in an atmospher of nitrogen or of an inert gas at 20 atm or less; and (c) performing secondary sintering at 1,400.degree. to 1,600.degree. C. in an atmosphere of nitrogen or of an inert gas at 300 atm or more.

    摘要翻译： 具有高密度，强度，韧性和硬度的氮化硅烧结体，其可用于发动机的结构部件等。本发明的烧结体包含80〜94重量％的Si 3 N 4，2〜10重量％ 镁化合物按MgO计算，和2〜10重量％的Y化合物按Y2O3当量计算。 Si3N4含有5〜40％的α-相。 该烧结体按以下步骤制造：（a）以上述比例混合粉末状Si 3 N 4与Mg化合物和Y化合物，然后将其中Si 3 N 4粉末含有80％以上的α-相及其晶粒的混合物 平均直径1米以下; （b）在大气压的氮气或20atm以下的惰性气体中，在1600℃以下进行初次烧结; 和（c）在氮气气氛中或在大气压为300atm以上的惰性气体中，在1400℃〜1600℃进行二次烧结。

    Method of producing silicon-nitride-based sintered body
    2.
    发明授权
    Method of producing silicon-nitride-based sintered body 失效
    制造氮化硅基烧结体的方法

    公开(公告)号：US5122486A

    公开(公告)日：1992-06-16

    申请号：US309852

    申请日：1989-02-14

    申请人： Tomohisa Kito ,  Katsuhisa Yabuta ,  Masakazu Watanabe

    发明人： Tomohisa Kito ,  Katsuhisa Yabuta ,  Masakazu Watanabe

    IPC分类号： C04B35/584 ,  C04B41/45 ,  C04B41/81

    CPC分类号： C04B41/009 ,  C04B41/4521 ,  C04B41/81 ,  C04B2111/00301

    摘要： Silicon-nitride-based sintered body is produced by a primary sintering; applying a paste-like coating, in which a surface-homogenizing agent is at least one kind of inorganic constituents selected from the group consisting of C, Bn, AlN and Si.sub.3 N.sub.4 provided that C is present at least 5% by weight of the inorganic constituents, on a primary sintered body; and subsequently performing a secondary sintering under a pressure higher than that at the primary sintering.

    摘要翻译： 氮化硅系烧结体通过一次烧结而制成， 施用糊状涂层，其中表面均化剂是选自C，Bn，AlN和Si 3 N 4中的至少一种无机成分，条件是C存在至少5重量％的无机成分 在一次烧结体上; 然后在比一次烧结时高的压力下进行二次烧结。

    Silicon nitride sintered body and method for producing same
    3.
    发明授权
    Silicon nitride sintered body and method for producing same 失效
    氮化硅烧结体及其制造方法

    公开(公告)号：US5114888A

    公开(公告)日：1992-05-19

    申请号：US612691

    申请日：1990-11-15

    申请人： Kenichi Mizuno ,  Yo Tajima ,  Masakazu Watanabe

    发明人： Kenichi Mizuno ,  Yo Tajima ,  Masakazu Watanabe

    IPC分类号： C04B35/593

    CPC分类号： C04B35/5935

    摘要： Silicon nitride base sintered body consists of: 1 to 20 wt % (as oxides) of at least one of rare earth elements; 0.5 to 8 wt % of V (as V.sub.2 O.sub.5); 0.5 to 8 wt % (as oxides) of at least one of Nb, Ta, Cr, Mo and W; sum of the Va and VIa group elements according to the Periodic Table of the International Version (as oxides) being 1 to 10 wt %; and balance silicon nitride. It has high strength of 690-880 MPa (70-90 kgf/mm.sup.2) and high oxidation resistance both at 1350.degree. C. It is produced by 2 stage gas-pressure sintering in pressurized N.sub.2 atmosphere, primarily at 1700.degree.-1900.degree. C. at 1 MPa (10 atm) or less and secondarily at 1600.degree.-1900 C. at 10 MPa (100 atm) or above.

    摘要翻译： 氮化硅基烧结体由以下组成：1〜20重量％（作为氧化物）的稀土元素中的至少一种; 0.5至8重量％的V（作为V 2 O 5）; Nb，Ta，Cr，Mo和W中的至少一种为0.5〜8重量％（作为氧化物） 根据国际版本（作为氧化物）的周期表，Va和VIa族元素的总和为1至10wt％; 并平衡氮化硅。 它在1350℃下具有690-880MPa（70-90kgf / mm2）的高强度和高抗氧化性。它在加压N 2气氛中，主要在1700°-1900℃下通过2级气压烧结 在10MPa（100大气压）以上，在1MPa（10atm）以下，二次在1600〜1900℃。

    Sintered silicon nitride products
    4.
    发明授权
    Sintered silicon nitride products 失效
    烧结氮化硅产品

    公开(公告)号：US5032554A

    公开(公告)日：1991-07-16

    申请号：US450890

    申请日：1989-12-14

    申请人： Kenichi Mizuno ,  Yo Tajima ,  Masakazu Watanabe

    发明人： Kenichi Mizuno ,  Yo Tajima ,  Masakazu Watanabe

    IPC分类号： C04B35/593

    CPC分类号： C04B35/5935

    摘要： A sintered silicon nitride product comprises from 72 to 98% by weight of silicon nitride, from 1 to 8% by weight of vanadium pentoxide, and from 1 to 20% by weight of one or more oxides of rare earth elements. The vanadium pentoxide and the oxide of rare earth elements accelerate the densification of the sintered product, and provide high strength at high temperature as well as excellent oxidation resistance to the sintered product.

    摘要翻译： 烧结氮化硅产品包含72至98重量％的氮化硅，1至8重量％的五氧化二钒和1至20重量％的一种或多种稀土元素氧化物。 五氧化二钒和稀土元素的氧化物加速烧结产品的致密化，并且在高温下提供高强度以及对烧结产品具有优异的抗氧化性。

    Electrical device cabinet
    5.
    发明授权
    Electrical device cabinet 失效
    电器柜

    公开(公告)号：US07650614B2

    公开(公告)日：2010-01-19

    申请号：US11650447

    申请日：2007-01-08

    申请人： Masakazu Watanabe

    发明人： Masakazu Watanabe

    IPC分类号： G11B33/02

    CPC分类号： G11B33/02 ,  H05K5/0013

    摘要： An electrical device cabinet includes a cabinet body, a front panel, and a positioning mechanism. The cabinet body has an open front end. The front panel is formed by a resin molding, and is mounted to the front end of the cabinet body. The positioning mechanism includes a concave portion disposed at the cabinet body and a convex portion disposed at an inner face of the front panel. The positioning mechanism positions the front panel in a lateral direction with respect to the cabinet body by mating the concave portion and the convex portion. The convex portion is formed in a hollow shape and is covered by an outer face of the front panel from a front side of the front panel.

    摘要翻译： 电气设备柜包括柜体，前面板和定位机构。 柜体具有敞开的前端。 前面板由树脂成型体形成，并安装在机壳主体的前端。 定位机构包括设置在柜主体处的凹部和设置在前面板的内表面的凸部。 所述定位机构通过配合所述凹部和所述凸部而将所述前面板相对于所述机壳本体的横向方向定位。 凸部形成为中空形状，并且从前面板的前侧被前面板的外表面覆盖。

    Electrical device cabinet
    6.
    发明申请
    Electrical device cabinet 失效
    电器柜

    公开(公告)号：US20070162918A1

    公开(公告)日：2007-07-12

    申请号：US11650447

    申请日：2007-01-08

    申请人： Masakazu Watanabe

    发明人： Masakazu Watanabe

    IPC分类号： G11B33/02

    CPC分类号： G11B33/02 ,  H05K5/0013

    摘要： An electrical device cabinet includes a cabinet body, a front panel, and a positioning mechanism. The cabinet body has an open front end. The front panel is formed by a resin molding, and is mounted to the front end of the cabinet body. The positioning mechanism includes a concave portion disposed at the cabinet body and a convex portion disposed at an inner face of the front panel. The positioning mechanism positions the front panel in a lateral direction with respect to the cabinet body by mating the concave portion and the convex portion. The convex portion is formed in a hollow shape and is covered by an outer face of the front panel from a front side of the front panel.

    摘要翻译： 电气设备柜包括柜体，前面板和定位机构。 柜体具有敞开的前端。 前面板由树脂成型体形成，并安装在机壳主体的前端。 定位机构包括设置在柜主体处的凹部和设置在前面板的内表面的凸部。 所述定位机构通过配合所述凹部和所述凸部而将所述前面板相对于所述机壳本体的横向方向定位。 凸部形成为中空形状，并且从前面板的前侧被前面板的外表面覆盖。

    Optical fiber ribbon stranding method and device
    7.
    发明授权
    Optical fiber ribbon stranding method and device 有权
    光纤带状绞线方法及装置

    公开(公告)号：US06237316B1

    公开(公告)日：2001-05-29

    申请号：US09264862

    申请日：1999-03-09

    申请人： Koichi Saito ,  Masakazu Watanabe ,  Masatoshi Yasui ,  Ken Takahashi

    发明人： Koichi Saito ,  Masakazu Watanabe ,  Masatoshi Yasui ,  Ken Takahashi

    IPC分类号： D01H1304

    CPC分类号： G02B6/4491 ,  G02B6/4408

    摘要： In order to superimpose and store optical fiber ribbons in a corresponding one of spiral grooves provided in the outer circumferential surface of a spacer, an optical fiber ribbon stranding device includes: a device for advancing the spacer straight while rotating the spacer around the center axis of the spacer, the advancing device being constituted by, for example, a tension giving device and a take-up device; a device for feeding a plurality of optical fiber ribbons; a guide die for guiding the optical fiber ribbons into the corresponding one of the spiral grooves; and an alignment keeping guide disposed upstream of the guide die. A rectangular hole is provided to extend through the alignment keeping guide, and the optical fiber ribbons are passed through and superimposed by the hole. The optical fiber ribbons kept in a superimposed state by the alignment keeping guide is introduced and accommodated into the corresponding one of the grooves of the spacer through the guide die.

    摘要翻译： 为了将光纤带叠置并存储在设置在间隔件的外周面中的相应的一个螺旋槽中，光纤带卷绕装置包括：用于使间隔件直线转动的装置，同时围绕中心轴线 间隔件，前进装置由例如张力赋予装置和卷取装置构成; 用于馈送多个光纤带的装置; 用于将光纤带引导到相应的一个螺旋槽中的导向模具; 以及设置在所述引导模具的上游的对准保持引导件。 提供矩形孔以延伸通过对准保持引导件，并且光纤带通过并叠加在孔中。 通过对准保持引导件保持叠加状态的光纤带通过引导模具被引入并容纳到间隔件的相应的一个槽中。