公开(公告)号：US20120093713A1

公开(公告)日：2012-04-19

申请号：US13262311

申请日：2010-03-31

申请人： Masashi Yoshimura ,  Masaki Fukuma ,  Yutuka Tsuji ,  Shigiru Nakayama

发明人： Masashi Yoshimura ,  Masaki Fukuma ,  Yutuka Tsuji ,  Shigiru Nakayama

IPC分类号： C01F7/02 ,  C04B35/64

CPC分类号： C04B35/443 ,  C04B35/62635 ,  C04B35/63416 ,  C04B35/63448 ,  C04B35/63488 ,  C04B2235/658 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9653

摘要： To provide a light-transmitting window material made of a spinel sintered body, wherein the largest diameter of pores contained in the light-transmitting window material is not more than 100 μm, and the number of pores having a largest diameter of not less than 10 μm is not more than 2.0 per 1 cm3 of the light-transmitting window material, and wherein light scattering factors are further reduced, and a method for producing a spinel light-transmitting window material including the steps of preparing a spinel molded body; a primary sintering step of sintering the spinel molded body at normal pressure or less or in a vacuum at a temperature in the range of 1500 to 1900° C.; and a secondary sintering step of sintering the spinel molded body under pressure at a temperature in the range of 1500 to 2000° C., wherein the relative density of the spinel molded body after the primary sintering step is 95 to 96% and the relative density of the spinel molded body after the secondary sintering step is 99.8% or more.

摘要翻译： 为了提供一种由尖晶石烧结体制成的透光窗材料，其中包含在透光窗材料中的最大直径的孔不大于100μm，并且具有最大直径不小于10的孔数 μm为1cm 3以下的透光窗材料不超过2.0，进一步减少光散射因子，以及包括制备尖晶石成型体的尖晶石透光窗材料的方法。 在1500〜1900℃的温度下，在常压或以下或真空中烧结尖晶石成型体的一次烧结工序。 以及二次烧结工序，在1500〜2000℃的温度范围内的压力下烧结尖晶石成形体，其中，一次烧结工序后的尖晶石成型体的相对密度为95〜96％，相对密度 的二次烧结步骤后的尖晶石成型体为99.8％以上。

公开(公告)号：US08673796B2

公开(公告)日：2014-03-18

申请号：US13262311

申请日：2010-03-31

申请人： Masashi Yoshimura ,  Masaki Fukuma ,  Yutaka Tsuji ,  Shigeru Nakayama

发明人： Masashi Yoshimura ,  Masaki Fukuma ,  Yutaka Tsuji ,  Shigeru Nakayama

IPC分类号： C04B35/00

CPC分类号： C04B35/443 ,  C04B35/62635 ,  C04B35/63416 ,  C04B35/63448 ,  C04B35/63488 ,  C04B2235/658 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9653

摘要： To provide a light-transmitting window material made of a spinel sintered body, wherein the largest diameter of pores contained in the light-transmitting window material is not more than 100 μm, and the number of pores having a largest diameter of not less than 10 μm is not more than 2.0 per 1 cm3 of the light-transmitting window material, and wherein light scattering factors are further reduced, and a method for producing a spinel light-transmitting window material including the steps of preparing a spinel molded body; a primary sintering step of sintering the spinel molded body at normal pressure or less or in a vacuum at a temperature in the range of 1500 to 1900° C.; and a secondary sintering step of sintering the spinel molded body under pressure at a temperature in the range of 1500 to 2000° C., wherein the relative density of the spinel molded body after the primary sintering step is 95 to 96% and the relative density of the spinel molded body after the secondary sintering step is 99.8% or more.

摘要翻译： 为了提供由尖晶石烧结体制成的透光窗材料，其中包含在透光窗材料中的最大直径的孔不大于100μm，并且具有最大直径不小于10的孔数 每1cm 3的透光窗材料的母体不超过2.0，进一步减少光散射因子，以及包括制备尖晶石成型体的尖晶石透光窗材料的方法。 在1500〜1900℃的温度下，在常压或以下或真空中烧结尖晶石成型体的一次烧结工序。 以及二次烧结工序，在1500〜2000℃的温度范围内的压力下烧结尖晶石成形体，其中，一次烧结工序后的尖晶石成型体的相对密度为95〜96％，相对密度 的二次烧结步骤后的尖晶石成型体为99.8％以上。

公开(公告)号：US20100103356A1

公开(公告)日：2010-04-29

申请号：US12528766

申请日：2008-02-28

申请人： Masashi Yoshimura ,  Takenori Yoshikane ,  Shigeru Nakayama ,  Akihito Fujii

发明人： Masashi Yoshimura ,  Takenori Yoshikane ,  Shigeru Nakayama ,  Akihito Fujii

IPC分类号： G02F1/1333 ,  C04B35/053

CPC分类号： C04B35/443 ,  C04B35/6455 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C04B2111/805 ,  C04B2235/3201 ,  C04B2235/3208 ,  C04B2235/3272 ,  C04B2235/3418 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/72 ,  C04B2235/77 ,  C04B2235/79 ,  C04B2235/9653 ,  G02B1/02 ,  G02F2001/133311 ,  G02F2201/50 ,  G02F2202/09 ,  G02F2203/01 ,  G02F2203/06 ,  G03B21/005 ,  C04B41/4529 ,  C04B41/5027 ,  C04B41/5055

摘要： A spinel sintered body has a composition of MgO·nAl2O3 (1.05≦n≦1.30) containing 20 ppm or less of Si element. A production method thereof includes the steps of: forming a compacted body from a spinel powder containing 50 ppm or less of Si element and having a purity of not less than 99.5 mass %; a first sintering step of forming a sintered body having a density of not less than 95% by sintering the compacted body at 1500° C. to 1700° C. in a vacuum; and a second sintering step of subjecting the sintered body to pressurized sintering at 1600° C. to 1800° C.

摘要翻译： 尖晶石烧结体具有含有20ppm以下的Si元素的MgO·nAl 2 O 3（1.05＆nlE; n＆nlE; 1.30）的组成。 其制造方法包括以下步骤：由含有50ppm以下Si元素，纯度为99.5质量％以上的尖晶石粉末形成压实体; 通过在真空中在1500℃〜1700℃下烧结压实体，形成密度不低于95％的烧结体的第一烧结步骤; 以及第二烧结步骤，使烧结体在1600℃至1800℃下进行加压烧结。

公开(公告)号：US20100033849A1

公开(公告)日：2010-02-11

申请号：US12520355

申请日：2007-12-19

申请人： Shuji Seki ,  Hideki Komiya ,  Susumu Shibasaki ,  Makoto Aihara ,  Masashi Yoshimura

发明人： Shuji Seki ,  Hideki Komiya ,  Susumu Shibasaki ,  Makoto Aihara ,  Masashi Yoshimura

IPC分类号： G02B7/02 ,  B29D11/00 ,  B28B3/00

CPC分类号： C03B11/08 ,  C03B2215/404 ,  C03B2215/49 ,  C03B2215/73 ,  Y02P40/57

摘要： An optical element being high in productivity and capable of ensuring a large bonding area, and a production method of the optical element. At mold opening when a top part (120) provided with a round portion (121) moves upward, a preform is placed in an inner space the interior of which is formed by a rectangular sleeve (110) and the round portion (131) of a bottom part (130). At mold clamping when the top part (120) moves downward, the preform is pressurized. That is, a convex lens portion is transferred by the concave curved surface (122) and the edge surface (123) of the round portion (121) and the concave curved surface (132) and the edge surface (133) of the round portion (131). The four side surfaces of an optical element (1) are transferred by the inner wall surface (110a) of the sleeve (110). Further, part of the preform jumps out into the gap portion (140) between the outer peripheral surfaces (121a, 131a) of the round portions (121, 131) and the inner wall surface (110a) of the sleeve (110) to thereby form a protrusion portion of the optical element (1). The optical element (1) has a marker (2) formed on the top surface (11a) of its body, and the marker (2) may be formed to extend linearly along the optical axis of lens portions (12, 16). The marker (2) is formed to protrude from the top surface (11a). The side surface (11b) and the side surface (11c) of the body may be formed such that the separating distance between the side surface (11b) and the side surface (11c) gradually increases toward a bottom surface (11d).

摘要翻译： 光学元件生产率高，能够确保大的接合面积的光学元件，以及光学元件的制造方法。 在模具打开时，当具有圆形部分（121）的顶部（120）向上移动时，预制件被放置在内部空间中，内部空间由矩形套筒（110）和圆形部分（131）形成， 底部（130）。 在顶部（120）向下移动时的模具夹紧中，预制件被加压。 也就是说，凸透镜部分通过凹曲面（122）和圆形部分（121）的边缘表面（123）和凹曲面（132）和圆形部分的边缘表面（133） （131）。 光学元件（1）的四个侧表面被套筒（110）的内壁表面（110a）转移。 此外，一部分预成型件弹出到圆筒部（121,131）的外周面（121a，131a）与套筒（110）的内壁面（110a）之间的间隙部（140） 形成光学元件（1）的突出部分。 光学元件（1）具有形成在其本体的顶表面（11a）上的标记（2），并且标记（2）可以形成为沿透镜部分（12,16）的光轴线性延伸。 标记（2）形成为从顶面（11a）突出。 主体的侧面（11b）和侧面（11c）可以形成为使得侧面（11b）与侧面（11c）之间的分离距离朝向底面（11d）逐渐增大。

公开(公告)号：US07288151B2

公开(公告)日：2007-10-30

申请号：US10999338

申请日：2004-11-29

申请人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota

发明人： Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura ,  Fumio Kawamura ,  Ryu Hirota

IPC分类号： C30B11/14

CPC分类号： C30B29/403 ,  C30B11/00 ,  C30B11/04 ,  C30B29/406

摘要： There is provided a method of manufacturing a group-III nitride crystal in which a nitrogen plasma is brought into contact with a melt containing a group-III element and an alkali metal to grow the group-III nitride crystal. Furthermore, there is also provided a method of manufacturing a group-III nitride crystal in which the group-III nitride crystal is grown on a substrate placed in a melt containing a group-III element and an alkali metal, with a minimal distance between a surface of the melt and a surface of the substrate set to be at most 50 mm.

摘要翻译： 提供了一种制造III族氮化物晶体的方法，其中使氮等离子体与含有III族元素和碱金属的熔体接触以生长III族氮化物晶体。 此外，还提供了一种III族氮化物晶体的制造方法，其中III族氮化物晶体在放置在含有III族元素和碱金属的熔体中的基板上生长，其中 熔体的表面和基板的表面设定为至多50mm。

公开(公告)号：US07132061B2

公开(公告)日：2006-11-07

申请号：US10466838

申请日：2002-01-17

申请人： Masashi Yoshimura

发明人： Masashi Yoshimura

IPC分类号： C04B35/58 ,  B29C67/00 ,  H05B6/00

CPC分类号： C04B35/58007 ,  B82Y30/00 ,  C04B35/58014 ,  C04B35/584 ,  C04B35/593 ,  C04B35/6261 ,  C04B35/6303 ,  C04B35/64 ,  C04B41/009 ,  C04B41/53 ,  C04B41/91 ,  C04B2111/00353 ,  C04B2111/94 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3878 ,  C04B2235/3886 ,  C04B2235/404 ,  C04B2235/5454 ,  C04B2235/549 ,  C04B2235/666 ,  C04B2235/77 ,  C04B2235/781 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2235/963 ,  C04B35/58

摘要： A conductive silicon nitride composite sintered body having an average grain size of 100 nm or less and whose relative roughness (Ra) after electric discharge machining is 0.3 μm or less can be obtained by grinding/mixing a silicon nitride powder and a metal powder together until the average particle size of the silicon nitride powder becomes 30 nm or less, and subsequently by molding and sintering. It is preferable that the crushing/mixing is continued until it is apparent that a peak of added metal in an X-ray diffraction pattern has disappeared during the crushing/mixing.

摘要翻译： 通过将氮化硅粉末和金属粉末一起研磨/混合，可以得到平均粒径为100nm以下，并且放电加工后的相对粗糙度（Ra）为0.3μm以下的导电性氮化硅复合烧结体，直到 氮化硅粉末的平均粒径为30nm以下，随后通过成型和烧结。 优选的是，破碎/混合是持续的，直到在粉碎/混合期间X射线衍射图中添加的金属的峰值已经消失。

公开(公告)号：US06964560B2

公开(公告)日：2005-11-15

申请号：US10490870

申请日：2001-12-14

申请人： Masashi Yoshimura

发明人： Masashi Yoshimura

IPC分类号： B65G53/24 ,  F04C18/16 ,  F04C23/00 ,  F04C25/02 ,  F04C29/00 ,  F04C29/04 ,  F01C1/16 ,  F01C1/24

CPC分类号： F04C29/0021 ,  F04C18/16 ,  F04C23/00 ,  F04C29/042 ,  F05C2201/0442

摘要： An object of this invention is to prevent drop of life of a bearing by an axial force when using a pump as a compressor. In a vacuum pump 1 compressing and discharging gas in a direction of a rotor axis by rotation of screw rotors 3, 4 engaged together which are supported rotatably in a casing 2, balance pistons 13, 14 are disposed on shafts 6, 7 of said screw rotors at inlet side of said casing. The balance pistons separate a receiving section 17 at area of the screw rotor and a pressurizing section 16 at area of the balance piston, and a thrust force of the screw rotors at a pressurizing condition is canceled by acting the discharge pressure in the pressurizing section. The pump is used as a compressor when the discharge pressure is acted on the balance pistons 13, 14. When the pump is used as a vacuum pump, air at discharge side is sucked as cool air through a cooler toward a place near to the discharge side of the receiving section 17 at area of the screw rotor.

摘要翻译： 本发明的目的是在使用泵作为压缩机时防止轴承的寿命下降。 在真空泵1中，通过可旋转地支撑在壳体2中的螺旋转子3,4的接合的螺杆转子3,4的旋转，在转子轴线的方向上压缩和排出气体，平衡活塞13,14设置在所述螺杆的轴6,7上 所述壳体入口侧的转子。 平衡活塞在螺杆转子的区域和在平衡活塞的区域处的加压部16分离接收部17，并且通过作用加压部中的排出压力来消除螺杆转子在加压条件下的推力。 当排出压力作用在平衡活塞13,14上时，泵用作压缩机。 当泵用作真空泵时，在螺旋转子的区域处，排出侧的空气通过冷却器作为冷空气被吸入靠近接收部17的排出侧的位置。

公开(公告)号：US20050070388A1

公开(公告)日：2005-03-31

申请号：US10944756

申请日：2004-09-21

申请人： Hirofumi Miyata ,  Shinichiro Nishikawa ,  Masashi Yoshimura

发明人： Hirofumi Miyata ,  Shinichiro Nishikawa ,  Masashi Yoshimura

IPC分类号： F16H7/08 ,  F16H7/12 ,  F16H7/20 ,  F16H55/36

CPC分类号： F16H55/36 ,  F16H7/12 ,  F16H7/20 ,  F16H2007/0865 ,  F16H2055/363

摘要： A hollow cylindrical pulley body 5 is carried rotatably by a hollow cylindrical shaft member 11. A support rod 8 is inserted in the shaft member 11 to support the shaft member 11 for rocking motion about a pivot axis C2 orthogonal to the shaft member 11. The pivot axis C2 is inclined backward in the direction of belt travel with respect to the direction of load on the shaft member 11. With this configuration, when the drive belt 3 deviates to one side, the pulley body 5 is immediately angularly moved so that it is inclined with a level difference with respect to the direction of load on the shaft member 11 and is positioned obliquely relative to the drive belt 3, thereby producing a force of returning the drive belt 3 to its normal position.

摘要翻译： 中空的圆筒形滑轮主体5由中空圆柱形轴构件11可旋转地承载。支撑杆8插入轴构件11中，以支撑轴构件11，以围绕与轴构件11正交的枢转轴线C2摆动。 枢轴线C2相对于轴构件11上的负载方向在带行进方向上向后倾斜。利用这种构造，当驱动带3偏离到一侧时，滑轮体5立即成角度地移动，使得 相对于轴构件11上的负载方向倾斜，并且相对于传动带3倾斜定位，从而产生将传动带3返回其正常位置的力。

公开(公告)号：US06844282B2

公开(公告)日：2005-01-18

申请号：US10311604

申请日：2002-04-18

申请人： Masashi Yoshimura

发明人： Masashi Yoshimura

IPC分类号： C04B35/583 ,  C04B35/584 ,  C04B35/591 ,  C04B35/593 ,  C04B35/596 ,  C04B35/577

CPC分类号： C04B35/58071 ,  B82Y30/00 ,  C04B35/58014 ,  C04B35/58064 ,  C04B35/583 ,  C04B35/584 ,  C04B35/587 ,  C04B35/591 ,  C04B35/593 ,  C04B35/62615 ,  C04B35/62842 ,  C04B35/6303 ,  C04B35/64 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3804 ,  C04B2235/3813 ,  C04B2235/3826 ,  C04B2235/3843 ,  C04B2235/3856 ,  C04B2235/386 ,  C04B2235/3873 ,  C04B2235/3886 ,  C04B2235/404 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/46 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/549 ,  C04B2235/666 ,  C04B2235/781 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/96

摘要： The present invention provides a silicon nitride based sintered body having excellent mechanical properties from room temperature to a medium low temperature range, a low friction coefficient and excellent wear resistance. The sintered body comprises silicon nitride, titanium compounds and boron nitride or silicon nitride, titanium based nitride and/or carbide, silicon carbide and graphite and/or carbon; and has a mean particle diameter of 100 nm or less and a friction coefficient under lubricant free conditions of 0.3 or less.

摘要翻译： 本发明提供一种从室温到中等低温范围具有优异的机械性能，低摩擦系数和优异的耐磨性的氮化硅基烧结体。 烧结体包括氮化硅，钛化合物和氮化硼或氮化硅，钛基氮化物和/或碳化物，碳化硅和石墨和/或碳; 平均粒径为100nm以下，无润滑条件下的摩擦系数为0.3以下。

公开(公告)号：US5585055A

公开(公告)日：1996-12-17

申请号：US442661

申请日：1995-05-17

申请人： Masashi Yoshimura ,  Koichi Niihara

发明人： Masashi Yoshimura ,  Koichi Niihara

IPC分类号： C04B35/505 ,  C04B35/645 ,  B28B3/00

CPC分类号： C04B35/645 ,  C04B35/505

摘要： The strength of a composite sintered body including yttrium oxide is improved. A composite ceramics sintered body includes a matrix of yttrium oxide and silicon carbide particles dispersed within the matrix. A compound oxide phase including yttrium and silicon is present at the surface of the sintered body. A sintered body is obtained by compression-molding mixed powder including yttrium oxide powder and silicon carbide powder in an inert gas atmosphere of at least 1550.degree. C. The sintered body is subjected to a heat treatment for at least 0.5 hour and not more than 12 hours in an atmosphere including oxygen gas in the range of at least 900.degree. C. and less than 1200.degree. C.

摘要翻译： 提高了包含氧化钇的复合烧结体的强度。 复合陶瓷烧结体包括分散在基质内的氧化钇和碳化硅颗粒的基体。 在烧结体的表面存在包含钇和硅的复合氧化物相。 通过在至少1550℃的惰性气体气氛中将含有氧化钇粉末和碳化硅粉末的混合粉末压缩成型而获得烧结体。烧结体经受至少0.5小时且不超过12的热处理 在包括氧气在900℃以上且小于1200℃的气氛中的小时。