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41. 发明申请

US20050217561A1 Low-resistance n type semiconductor diamond and process for producing the same 失效
标题翻译：低电阻n型半导体金刚石及其制造方法
公开(公告)号：US20050217561A1
公开(公告)日：2005-10-06
申请号：US10506493
申请日：2003-12-22
申请人： Akihiko Namba , Takahiro Imai , Hisao Takeuchi
发明人： Akihiko Namba , Takahiro Imai , Hisao Takeuchi
IPC分类号： C30B29/04 , C23C16/27 , C23C16/448 , C23C16/48 , C30B25/10 , H01L21/205 , H01L21/22 , C30B7/00 , C30B21/02 , C30B28/06
CPC分类号： C23C16/448 , C23C16/27 , C23C16/278 , C23C16/482 , C30B25/105 , C30B29/04 , H01L21/02376 , H01L21/02527 , H01L21/02576 , H01L21/0262 , H01L21/02634
摘要： Concerns lithium-doped diamond: Low-resistivity n-type semiconductor diamond doped with lithium and nitrogen, and a method of manufacturing such diamond are provided. Low-resistivity n-type semiconductor diamond containing 1017 cm−3 or more of lithium atoms and nitrogen atoms together, in which are respectively doped lithium atoms into carbon-atom interstitial lattice sites, and nitrogen atoms into carbon-atom substitutional sites, with the lithium and the nitrogen holding arrangements that neighbor each other. To obtain low-resistivity n-type semiconductor diamond, in a method for the vapor synthesis of diamond, photodissociating source materials by photoexcitation utilizing vacuum ultraviolet light and irradiating a lithium source material with an excimer laser to scatter and supply lithium atoms enables the diamond to be produced.
摘要翻译：关注锂掺杂金刚石：提供掺杂有锂和氮的低电阻率n型半导体金刚石，以及制造这种金刚石的方法。含有10个以上的锂原子和氮原子的10个以上的低电阻率n型半导体金刚石，其中分别将掺杂的锂原子分成碳原子间隙晶格位点和氮原子转变成碳原子取代位置，其中锂和氮保持排列彼此相邻。为了获得低电阻率n型半导体金刚石，在金刚石的汽相合成方法中，通过使用真空紫外光的光激发光解离源材料并用准分子激光器照射锂源材料来散射和供应锂原子，使得金刚石生产。

42. 发明授权

US06200033B1 Hydrodynamic gas bearing and manufacturing method thereof 失效
标题翻译：流体动力气体轴承及其制造方法
公开(公告)号：US06200033B1
公开(公告)日：2001-03-13
申请号：US09327251
申请日：1999-06-07
申请人： Hisao Takeuchi , Kaoru Murabe
发明人： Hisao Takeuchi , Kaoru Murabe
IPC分类号： F16C3206
CPC分类号： F16C17/028 , F16C33/101 , Y10T29/49639 , Y10T82/10
摘要： A hydrodynamic gas bearing structure which can effectively prevent the half speed whirl phenomenon and prevent wear at the time of activation or stopping of rotation is implemented in a simple manner. The hydrodynamic gas bearing includes a shaft body having an outer periphery, and a cylindrical bearing body arranged around the shaft body with a space maintained therebetween in the radial direction. The shaft body has a hollow portion extending in the axial direction. In a cross section perpendicular to the axial line of the shaft body, the hollow portion has a not-complete-round, symmetrical shape with respect to a line passing through the center of the cross section, for example, an approximately regular triangular shape. A first distance from the center of the cross section to an outline corresponding to an inner periphery of the hollow portion changes along the peripheral direction of the shaft body as a second distance from the center of the cross section to an outline corresponding to the outer periphery of the shaft body also changes along the peripheral direction of the shaft body.
摘要翻译：能够以简单的方式实现能够有效地防止半速旋转现象并防止激活或停止旋转时的磨损的流体动力气体轴承结构。流体动力气体轴承包括具有外周的轴体和围绕轴体布置的圆柱形轴承体，其沿径向保持在其间。轴体具有沿轴向延伸的中空部。在垂直于轴体的轴线的横截面中，中空部分相对于穿过横截面的中心的线例如具有大致规则的三角形形状具有不完全圆形的对称形状。从中心部的中心到与中空部的内周对应的轮廓的第一距离沿着轴体的周向方向从离开中心的第二距离变化为对应于外周的轮廓轴体也沿轴体的周向发生变化。

43. 发明授权

US5944427A Dynamic pressure gas bearing structure and method of manufacturing the same as well as method of using the same 失效
标题翻译：动压气体轴承结构及其制造方法以及使用方法
公开(公告)号：US5944427A
公开(公告)日：1999-08-31
申请号：US981455
申请日：1997-12-23
申请人： Kaoru Murabe , Hisao Takeuchi , Osamu Komura
发明人： Kaoru Murabe , Hisao Takeuchi , Osamu Komura
IPC分类号： F16C3/02 , F16C33/10 , G11B19/20 , F16C32/06
CPC分类号： G11B19/2009 , F16C17/026 , F16C17/18 , F16C3/02 , F16C33/1065 , F16C33/1075 , F16C2370/12
摘要： A cross-sectional shape of a shaft body 1 perpendicular to its axis O has a shape defined by a closed curve having a plurality of maximal points M.sub.1, M.sub.2 and M.sub.3 whose distances from the axis are maximized about the axis O and a plurality of minimal points N.sub.1, N.sub.2 and N.sub.3 whose distances from the axis are minimized. This cross-sectional shape has a groove forming region provided with one groove 1b.sub.1 at least between the maximal points M.sub.1 and M.sub.2. When a bearing body 2 rotates on a CCW side with respect to the shaft body 1, the groove 1b.sub.1 is so arranged that an outer peripheral length a.sub.1 in the forward rotational direction exceeds an outer peripheral length b.sub.1 in the reverse rotational direction. Thus, a dynamic pressure gas bearing structure which can prevent galling of the shaft body and the bearing body by shifting the shaft body and the bearing body to a noncontact state at a low rotational frequency is obtained
摘要翻译： PCT No.PCT / JP97 / 01467 Sec。 371 1997年12月23日第 102（e）1997年12月23日PCT PCT 1997年4月28日提交PCT公布。出版物WO97 / 41362 日期1997年11月6日垂直于其轴线O的轴体1的横截面形状具有由具有多个最大点M1，M2和M3的闭合曲线限定的形状，其中轴线的距离绕轴线O最大以及与轴的距离最小的多个最小点N1，N2和N3。该横截面形状具有至少在最大点M1和M2之间设置有一个槽1b1的槽形成区域。当轴承体2相对于轴体1在CCW侧旋转时，槽1b1被布置为使得正向旋转方向上的外周长度a1超过反向旋转方向的外周长度b1。因此，获得能够通过将轴体和轴承体以低旋转频率移动到非接触状态来防止轴体和轴承体的磨损的动态气体轴承结构

44. 发明授权

US5695700A Method of preparing a ceramic porous body 失效
标题翻译：陶瓷多孔体的制备方法
公开(公告)号：US5695700A
公开(公告)日：1997-12-09
申请号：US450379
申请日：1995-05-25
申请人： Hisao Takeuchi , Seiji Nakahata , Takahiro Matsuura , Chihiro Kawai
发明人： Hisao Takeuchi , Seiji Nakahata , Takahiro Matsuura , Chihiro Kawai
IPC分类号： B01D39/20 , C04B38/00 , C04B33/34 , C04B33/36 , C04B35/71 , C04B37/00
CPC分类号： C04B38/00 , B01D39/2075
摘要： A ceramics porous body having high porosity as well as high strength is especially suitable for use as a filter for removing foreign matter from a fluid or as a catalytic carrier. The porous body has a porosity of at least 30% and comprises columnar ceramic grains having an aspect ratio of at least 3. In particular, the porous body comprises Si.sub.3 N.sub.4 grains, of which at least 60% are hexagonal columnar .beta.-Si.sub.3 N.sub.4 grains. The porous body further comprises at least one compound of a rare earth element in an amount of at least 1 volume % and not more than 20 volume % in terms of an oxide of the rare earth element, and optionally at least one compound of elements of the groups IIa and IIIb of the periodic table and transition metal elements in an amount of not more than 5 volume % in terms of an oxide of each element. A compact of mixed powder obtained by adding the compound powder of the rare earth element to silicon nitride powder is heat treated in a nitrogen atmosphere at a temperature of at least 1500.degree. C., to prepare the silicon nitride ceramic porous body.
摘要翻译：具有高孔隙率和高强度的陶瓷多孔体特别适合用作从流体或催化载体中除去异物的过滤器。多孔体具有至少30％的孔隙率，并且包括具有至少3的纵横比的柱状陶瓷颗粒。特别地，多孔体包含Si 3 N 4晶粒，其中至少60％是六边形柱状β-Si 3 N 4晶粒。多孔体还包含至少一种稀土元素化合物，其稀土元素的氧化物为至少1体积％且不超过20体积％，以及任选的至少一种化合物元素周期表的IIa和IIIb族和过渡金属元素的量不大于每个元素的氧化物的5体积％。在氮气氛下，在至少1500℃的温度下，将稀土元素的复合粉末添加到氮化硅粉末中而获得的混合粉末的压块进行热处理，制作氮化硅陶瓷多孔体。

45. 发明授权

US4794798A Device for measuring Young's modulus and internal friction of specimen 失效
标题翻译：用于测量样品的杨氏模量和内摩擦力的装置
公开(公告)号：US4794798A
公开(公告)日：1989-01-03
申请号：US33187
申请日：1987-04-02
申请人： Ken-ichi Matsushita , Taira Okamoto , Masahiko Shimada , Hisao Takeuchi
发明人： Ken-ichi Matsushita , Taira Okamoto , Masahiko Shimada , Hisao Takeuchi
IPC分类号： G01N3/38 , G01N33/38 , G01N3/00
CPC分类号： G01N3/38 , G01N2203/0222 , G01N33/388
摘要： Herein disclosed is a transverse resonance measurement device for measuring the Young's modulus and/or internal friction of the plate specimen of a material over a wide temperature range even if the material is nonconductive, e.g., ceramics, wood or plastics. Platinum paste is applied to one side of a plate specimen to be measured, and is baked into a platinum electrode.
摘要翻译：本文公开了一种用于在宽温度范围内测量材料的板样品的杨氏模量和/或内部摩擦的横向共振测量装置，即使该材料是不导电的，例如陶瓷，木材或塑料。将铂浆施加到待测量的板样品的一侧，并将其烧成铂电极。

46. 发明授权

US4659508A Electrically-conductive sintered compact of silicon nitride machinable by electrical discharge machining and process of producing the same 失效
标题翻译：通过放电加工可加工的氮化硅导电性烧结体及其制造方法
公开(公告)号：US4659508A
公开(公告)日：1987-04-21
申请号：US794675
申请日：1985-11-04
申请人： Matsuo Higuchi , Masaya Miyake , Hisao Takeuchi , Eiji Kamijo
发明人： Matsuo Higuchi , Masaya Miyake , Hisao Takeuchi , Eiji Kamijo
IPC分类号： C04B35/584 , C04B35/593 , C04B35/58 , C04B35/56
CPC分类号： C04B35/584 , C04B35/593
摘要： An electrically-conductive sintered compact of silicon nitride which is machinable by electrical discharge machining and a process to produce the same. TiN and/or TiC powder is added to a powder of silicon nitride in an amount 15-40% by volume to act as a conductivity-supplying agent while 0.01-3.0% by volume MgO and/or Al.sub.2 O.sub.3 powder is added as a sintering assistant. The mixed powders are then preformed in a desired shape and sintered in a nonoxidizing environment at 1,600.degree. C.-2,000.degree. C. to obtain a compact of silicon-nitride machinable by electrical discharge machining due to its electrical conductivity being at least 1 S.multidot.cm.sup.-1.
摘要翻译：可通过放电加工机加工的氮化硅导电烧结体及其制造方法。将TiN和/或TiC粉末加入15-40体积％的氮化硅粉末中，作为导电性供给剂，同时添加0.01-3.0体积％的MgO和/或Al 2 O 3粉末作为烧结助剂。然后将混合粉末预成形为所需形状，并在1600℃-2000℃的非氧化环境中烧结，得到可通过放电加工机加工的氮化硅致密体，因为其导电率至少为1Sxcm- 1。

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