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1. 发明授权

US5273700A Aluminum nitride sintered body and process for producing the same 失效
标题翻译：氮化铝烧结体及其制造方法
公开(公告)号：US5273700A
公开(公告)日：1993-12-28
申请号：US838800
申请日：1992-03-16
申请人： Akira Yamakawa , Kouiti Sogabe , Kohei Shimoda , Masaya Miyake
发明人： Akira Yamakawa , Kouiti Sogabe , Kohei Shimoda , Masaya Miyake
IPC分类号： C04B35/581 , C04B35/58
CPC分类号： C04B35/581
摘要： An aluminum nitride sintered body characterized by comprising aluminum nitride as the main component, containing a titanium compound, and having a black color, a transmittance of 10% or less with the light having a wavelength in the range of from 500 to 650 nm and a heat conductivity of 120 W/m.multidot.K or more. The sintered body is produced by adding 0.05 to 5% by weight, in terms of Ti, of a titanium compound and a sintering aid compound and, if necessary, a compound capable of forming carbon after being thermally decomposed to an aluminum nitride powder, molding the mixture, heating the molding in vacuo, air or a nitrogen gas, a hydrogen gas or an atmosphere comprising a mixture of these gases until the residual carbon content is reduced to 2.0% by weight or less, and sintering the heat-treated mixture in a nonoxidizing atmosphere containing nitrogen at 1600.degree. C. or above. The titanium compound is Ti.sub.n O.sub.2n-1 or a solid solution comprising Ti.sub.n O.sub.2n-1 and nitrogen partly dissolved therein in the solid solution form wherein n is 1 or more, or a compound represented by the formula TiN.sub.x O.sub. y wherein 0

2. 发明授权

US5280208A Composite bearing structure 失效
标题翻译：复合轴承结构
公开(公告)号：US5280208A
公开(公告)日：1994-01-18
申请号：US925937
申请日：1992-08-05
申请人： Osamu Komura , Kenji Matsunuma , Norio Yasuoka , Matsuo Higuchi , Masaya Miyake , Tetsuya Katayama , Akira Yamakawa
发明人： Osamu Komura , Kenji Matsunuma , Norio Yasuoka , Matsuo Higuchi , Masaya Miyake , Tetsuya Katayama , Akira Yamakawa
IPC分类号： F16C33/04 , F16C33/10 , F16C39/06 , H02K7/08 , F16C32/06 , H02K7/09
CPC分类号： F16C39/063 , F16C17/026 , F16C17/045 , F16C17/107 , F16C32/0402 , F16C32/0427 , F16C32/0431 , F16C33/043 , F16C33/107
摘要： A composite bearing structure can withstand high speed rotation has first, second and third bearing components. The first bearing component supports a radial impact force applied to a rotator during rotation, and is made of an inner ring (1) and an outer ring (2) of silicon nitride ceramic sintered bodies. The second bearing component supports an axial load applied to the rotator while maintaining a required clearance between itself and the rotator and is made of two permanent magnets (12, 13) positioned thrustdirectionally opposite to each other. The third bearing component maintains a radial rotational accuracy of the rotator, and is made of a radial dynamic pressure producing groove (5) provided on a cylindrical surface of the inner ring (1).
摘要翻译：复合轴承结构可承受高速旋转，具有第一，第二和第三轴承部件。第一轴承部件支承在转动期间施加到旋转体的径向冲击力，并由氮化硅陶瓷烧结体的内圈（1）和外圈（2）制成。第二轴承部件支撑施加到旋转器的轴向载荷，同时在其自身和旋转体之间保持所需的间隙，并且由两个彼此相反方向相对定位的永磁体（12,13）制成。第三轴承部件保持旋转体的径向旋转精度，并且由设置在内圈（1）的圆柱形表面上的径向动压产生槽（5）制成。

3. 发明授权

US5275772A Silicon nitride sintered body and process for producing the same 失效
标题翻译：氮化硅烧结体及其制造方法
公开(公告)号：US5275772A
公开(公告)日：1994-01-04
申请号：US957506
申请日：1992-10-05
申请人： Takehisa Yamamoto , Takao Nishioka , Kenji Matsunuma , Akira Yamakawa , Masaya Miyake
发明人： Takehisa Yamamoto , Takao Nishioka , Kenji Matsunuma , Akira Yamakawa , Masaya Miyake
IPC分类号： C04B35/593 , C04B35/597 , C04B35/58
CPC分类号： C04B35/5935 , C04B35/597
摘要： The present invention relates to a silicon nitride sintered body [wherein the composition of Si.sub.3 N.sub.4 -first aid (Y.sub.2 O.sub.3 +MgO)-second aid (at least one of Al.sub.2 O.sub.3 and AlN)] falls within a range defined by lines joining points A, B, C and D in FIG. 1, the crystal phase of the sintered body contains both .alpha.-Si.sub.3 N.sub.4 and .beta.'-sialon, and the relative density is 98% or more. This sintered body is produced by subjecting a green compact of the above-described source to primary sintering in a nitrogen gas atmosphere at 1300 to 1700.degree. C. so that the relative density reaches 96% or more, and the precipitation ratio of the .alpha.-Si.sub.3 N.sub.4 crystal phases to the .beta.'-sialon crystal phase in the sintered body is in the range of from 40:60 to 80:20; and then subjecting the primary sintered body to secondary sintering in a nitrogen gas atmosphere at 1300 to 1700.degree. C. so that the relative density reaches 98% or more. The sintered body has superior strength properties, especially at ordinary temperatures, and can be produced with a high productivity in a high yield at a low cost.
摘要翻译：本发明涉及一种氮化硅烧结体[其中，Si 3 N 4 - 急救（Y 2 O 3 + MgO） - 辅助剂（Al 2 O 3和AlN中的至少一种）的组成]落在由连接点A，B， C和D。如图1所示，烧结体的结晶相含有α-Si 3 N 4和β'-Sialon，相对密度为98％以上。该烧结体是通过使上述源的生坯在1300〜1700℃的氮气气氛中进行一次烧结而制成的，使得相对密度达到96％以上， Si3N4晶相与烧结体中的β' - 赛隆结晶相的比例范围为40:60至80:20; 然后在1300〜1700℃的氮气气氛中使一次烧结体进行二次烧结，使得相对密度达到98％以上。该烧结体具有优异的强度特性，特别是在普通温度下，可以低成本高产率地以高生产率生产。

4. 发明授权

US5776600A Slide member and method of manufacturing the same 失效
标题翻译：滑动构件及其制造方法
公开(公告)号：US5776600A
公开(公告)日：1998-07-07
申请号：US631666
申请日：1996-04-09
申请人： Tetsuya Katayama , Kaoru Murabe , Osamu Komura , Chihiro Kawai , Akira Yamakawa , Kenji Matsunuma , Norio Yasuoka , Matsuo Higuchi , Masaya Miyake
发明人： Tetsuya Katayama , Kaoru Murabe , Osamu Komura , Chihiro Kawai , Akira Yamakawa , Kenji Matsunuma , Norio Yasuoka , Matsuo Higuchi , Masaya Miyake
IPC分类号： C04B35/01 , C04B35/584 , C04B35/593 , C04B41/00 , C04B41/80 , F16C33/04 , F16C33/16 , C04B35/587
CPC分类号： C04B41/009 , C04B35/01 , C04B35/584 , C04B35/593 , C04B35/5935 , C04B41/0072 , C04B41/80 , F16C33/043 , F16C33/16 , C04B2111/00353 , Y10T428/252 , Y10T428/2991 , Y10T428/30
摘要： A slide member has a sliding surface made of ceramic and a has surface roughness of not more than 1.0 .mu.m in center line average roughness Ra. The ceramics includes a silicon nitride sintered body which contains crystal grains having a linear density of at least 35 per 30 .mu.m in length with a boundary phase volume ratio of not more than 15 volume %, and which contains pores of not more than 20 .mu.m in maximum diameter in a content of not more than 3%. In a method of manufacturing the slide member, it is possible to ensure smoothness of the sliding surface by grinding the sliding surface and thereafter heating the ceramic in an either an inert gas or atmospheric air. A slide member that can be used under severe sliding conditions of high-speed sliding or the like and that has excellent wear resistance is obtained. Even if the slide member is used for to a sliding part of a compressor or the like which employs a fluorocarbon containing no chlorine as a cooling medium, it is possible to prevent the occurrence of seizure and abnormal wear on the sliding surface.
摘要翻译：滑动构件具有由陶瓷制成的滑动面，并且在中心线平均粗糙度Ra中具有不大于1.0μm的表面粗糙度。陶瓷包括氮化硅烧结体，其包含长度为30μm以上的线密度为35以上，边界相体积比为15体积％以下且含有不大于20μm的孔的晶粒 m最大直径，含量不超过3％。在制造滑动构件的方法中，可以通过研磨滑动表面并随后在惰性气体或大气中加热陶瓷来确保滑动表面的平滑度。可以获得可以在高速滑动等的严酷滑动条件下使用且具有优异的耐磨性的滑动构件。即使将滑动部件用于使用不含氯的氟碳化合物的压缩机等的滑动部作为冷却介质，也可以防止滑动面发生卡滞和异常磨损。

5. 发明授权

US5603788A Method of manufacturing a ceramics-type vacuum vessel 失效
标题翻译：制造陶瓷型真空容器的方法
公开(公告)号：US5603788A
公开(公告)日：1997-02-18
申请号：US457013
申请日：1995-06-01
申请人： Tetsuya Abe , Yoshio Murakami , Hisao Takeuchi , Akira Yamakawa , Masaya Miyake
发明人： Tetsuya Abe , Yoshio Murakami , Hisao Takeuchi , Akira Yamakawa , Masaya Miyake
IPC分类号： C04B37/00 , F16J12/00 , H05H7/14 , B32B31/12 , B32B31/26
CPC分类号： H05H7/14
摘要： A vacuum vessel is provided in which the majority of a vessel wall including an annular wall portion (1) and a plate-wall portion (2) is formed of ceramic material such as silicon nitride, for example. To bond the plural wall members together, bonding faces having a surface flatness of not more than 1 .mu.m are prepared thereon, and then a ceramic powder bonding substance with an average particle diameter of not more than 1 .mu.m is interposed between adjacent bonding faces and subjected to heating. Because the generation of gas, such as hydrogen, from the wall of the ceramic vessel is reduced, extremely high vacuum can be generated and maintained in the interior of the vacuum vessel. Also, because the wall of the vacuum vessel has a high permeability with respect to a magnetic field and an electric field, the vacuum vessel can be used as a vessel in a particle accelerator that allows the high precision control of charged particles therein by means of an electromagnetic field.
摘要翻译：提供一种真空容器，其中包括环形壁部分（1）和板壁部分（2）的容器壁的大部分由诸如氮化硅的陶瓷材料形成。为了将多个壁构件结合在一起，在其上制备具有不大于1μm的表面平坦度的接合面，然后将平均粒径不大于1μm的陶瓷粉末粘合物置于相邻的接合面并进行加热。因为从陶瓷容器的壁产生气体，例如氢气，所以可以在真空容器的内部产生极高的真空度并维持真空。此外，由于真空容器的壁相对于磁场和电场具有高磁导率，所以真空容器可以用作粒子加速器中的容器，其允许通过以下方式对带电粒子进行高精度控制：电磁场。

6. 发明授权

US5264388A Sintered body of aluminum nitride 失效
标题翻译：氮化铝烧结体
公开(公告)号：US5264388A
公开(公告)日：1993-11-23
申请号：US824746
申请日：1992-01-17
申请人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Koichi Sogabe
发明人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Koichi Sogabe
IPC分类号： C04B35/581 , H01L23/15 , H05K1/03 , C04B35/58
CPC分类号： C04B35/581 , H01L23/15 , H01L2924/0002 , H05K1/0306 , Y10S428/901
摘要： The present invention provides a sintered body of aluminum nitride comprising (i) aluminum nitride as a main component and (ii) at least one component selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Co, Ni, Nd, Ho, Ti, and compounds thereof in the total amounts of not greater than 1.0 wt. % and not less than 0.01 wt. % in terms of elements on the basis of sintered body, the sintered body being colored and having a thermal conductivity of at least 150 W/mK. The sintered body is useful for the preparation of circuit boards having printed circuits thereon and highly heat-releasing ceramic packages for semiconductive devices.
摘要翻译：本发明提供一种氮化铝烧结体，其包含（i）氮化铝作为主要成分，和（ii）选自Zr，Hf，V，Nb，Ta，Cr，Mo，W， Fe，Co，Ni，Nd，Ho，Ti及其化合物的总量不大于1.0wt。％且不小于0.01wt。基于烧结体的元素的％，烧结体着色并具有至少150W / mK的导热率。该烧结体可用于制备其上具有印刷电路的电路板和用于半导体器件的高度散热的陶瓷封装。

7. 发明授权

US5373157A Quadrupole electrode and process for producing the same 失效
标题翻译：四极电极及其制造方法
公开(公告)号：US5373157A
公开(公告)日：1994-12-13
申请号：US965258
申请日：1993-01-05
申请人： Seiji Hiroki , Tetsuya Abe , Yoshio Murakami , Yoshishige Takano , Akira Yamakawa , Masaya Miyake
发明人： Seiji Hiroki , Tetsuya Abe , Yoshio Murakami , Yoshishige Takano , Akira Yamakawa , Masaya Miyake
IPC分类号： H01J49/42 , H01J1/88
CPC分类号： H01J49/4215 , H01J49/068
摘要： The present invention relates to improvement of a quadrupole electrode for use in a mass spectrometer or the like, in which two pairs of electrode rods 1, 2, 3 and 4 formed in such a manner that the section of the opposed face of each rod is hyperbolic or circular, and each electrode rod is made of a ceramic and the surface of the electrode is coated with a coating layer 5 of a conductive metal. Further, the present invention relates to a production process, characterized by incorporating such four electrodes at predetermined intervals. Since the electrodes are mainly made of a ceramic which is easily formable with a high dimensional accuracy, the adjustment of the positional relationship between the electrodes during assembling can be made without much effort, which enables a quadrupole electrode having a high performance to be provided with a good reproducibility at a low cost.
摘要翻译： PCT No.PCT / JP92 / 01141 Sec。 371日期：1993年1月5日 102（e）日期1993年1月5日PCT提交1992年9月7日PCT公布。出版物WO93 / 05532 日本1993年3月18日。本发明涉及用于质谱仪等的四极电极的改进，其中两对电极棒1,2,3和4以这样的方式形成：每个杆的相对面是双曲线或圆形，并且每个电极棒由陶瓷制成，并且电极的表面涂覆有导电金属的涂层5。此外，本发明涉及一种制造方法，其特征在于以预定间隔并入这四个电极。由于电极主要由能够以高尺寸精度容易地形成的陶瓷制成，因此可以在组装期间电极之间的位置关系的调整不需要太多的努力，这使得能够提供具有高性能的四极电极以低成本实现良好的再现性。

8. 发明授权

US5219803A Sintered body of aluminum nitride 失效
标题翻译：氮化铝烧结体
公开(公告)号：US5219803A
公开(公告)日：1993-06-15
申请号：US803117
申请日：1991-12-05
申请人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Koichi Sogabe
发明人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Koichi Sogabe
IPC分类号： C04B35/581 , H01L23/15 , H05K1/03
CPC分类号： H01L23/15 , C04B35/581 , H01L2924/0002 , H05K1/0306
摘要： The present invention provides a sintered body of aluminum nitride comprising (i) aluminum nitride as a main component and (ii) at least one component selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Co, Ni, Nd, Ho, Ti and compounds thereof in the total amounts of not greater than 1.0 wt.% and not less than 0.01 wt.% in terms of elements on the basis of sintered body, the sintered body being colored and having a thermal conductivity of at least 150 W/mK. The sintered body is useful for the preparation of circuit boards having printed circuits thereon and highly heat-releasing ceramic packages for semiconductive devices.
摘要翻译：本发明提供一种氮化铝烧结体，其包含（i）氮化铝作为主要成分，和（ii）选自Zr，Hf，V，Nb，Ta，Cr，Mo，W， Fe，Co，Ni，Nd，Ho，Ti及其化合物的总量不大于1.0重量％且不小于0.01重量％，基于烧结体的元素，烧结体是着色的并具有至少150W / mK的热导率。该烧结体可用于制备其上具有印刷电路的电路板和用于半导体器件的高度散热的陶瓷封装。

9. 发明授权

US5204297A Silicon nitride sintered body and process for producing the same 失效
标题翻译：硅氮化物烧结体及其制造方法
公开(公告)号：US5204297A
公开(公告)日：1993-04-20
申请号：US825989
申请日：1992-01-27
申请人： Takehisa Yamamoto , Takao Nishioka , Kenji Matsunuma , Akira Yamakawa , Masaya Miyake
发明人： Takehisa Yamamoto , Takao Nishioka , Kenji Matsunuma , Akira Yamakawa , Masaya Miyake
IPC分类号： C04B35/593 , C04B35/597
CPC分类号： C04B35/5935 , C04B35/597
摘要： The present invention relates to a silicon nitride sintered body [wherein the composition of Si.sub.3 N.sub.4 -first aid (Y.sub.2 O.sub.3 +MgO)-second aid (at least one of Al.sub.2 O.sub.3 and AlN)] falls within a range defined by lines joining points A, B, C and D in FIG. 1, the crystal phase of the sintered body contains both .alpha.-Si.sub.3 N.sub.4 and .beta.'-sialon, and the relative density is 98% or more. This sintered body is produced by subjecting a green compact of the above-described source to primary sintering in a nitrogen gas atmosphere at 1300.degree. to 1700.degree. C. so that the relative density reaches 96% or more, and the precipitation ratio of the .alpha.-Si.sub.3 N.sub.4 crystal phases to the .beta.'-sialon crystal phase in the sintered body is in the range of from 40:60 to 80:20; and then subjecting the primary sintered body to secondary sintering in a nitrogen gas atmosphere at 1300.degree. to 1700.degree. C. so that the relative density reaches 98% or more. The sintered body has superior strength properties, especially at ordinary temperatures, and can be produced with a high productivity in a high yield at a low cost.

10. 发明授权

US5173458A Silicon nitride sintered body and process for producing the same 失效
标题翻译：硅氮化物烧结体及其制造方法
公开(公告)号：US5173458A
公开(公告)日：1992-12-22
申请号：US810723
申请日：1991-12-18
申请人： Takao Nishioka , Kenji Matsunuma , Koichi Sogabe , Tomoyuki Awatsu , Masaya Miyake , Takehisa Yamamoto , Akira Yamakawa
发明人： Takao Nishioka , Kenji Matsunuma , Koichi Sogabe , Tomoyuki Awatsu , Masaya Miyake , Takehisa Yamamoto , Akira Yamakawa
IPC分类号： C04B35/593
CPC分类号： C04B35/5935
摘要： Disclosed is a silicon nitride sintered body produced by subjecting a green compact of a mixed powder composed of 1) a silicon nitride powder having a percentage .alpha. crystallization of 93% or more and a mean grain diameter of 0.7 .mu.m or less and 2) 5 to 15% by weight in total of a first sintering aid selected from among rare earth element, yttrium oxide and lanthanide oxides and a second sintering aid consisting of aluminum oxide or nitride and at least one selected from among oxides and nitrides of Mg, Ca and Li, to primary sintering in a nitrogen gas atmosphere under a pressure of 1.1 atm or less at 1500.degree. to 1700.degree. C.; and subjecting the sintered body to secondary sintering in a nitrogen gas atmosphere under a pressure of 10 atm or more at the primary sintering temperature or below, thereby giving a sintered body wherein the relative density of the sintered body is 99% or more and the precipitation ratio of an .alpha.-Si.sub.3 N.sub.4 (including .beta.'-sialon) crystal phase ranges from 1:3 to 1:8 in terms of the peak intensity ratio in X-ray diffraction.

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