公开(公告)号：US20080017283A1

公开(公告)日：2008-01-24

申请号：US11795192

申请日：2006-06-30

申请人： Keiichi Maruta ,  Tohru Hayashi ,  Nobutaka Kurosawa ,  Hideto Kimura ,  Takaaki Toyooka ,  Kazukuni Hase ,  Katsumi Yamada

发明人： Keiichi Maruta ,  Tohru Hayashi ,  Nobutaka Kurosawa ,  Hideto Kimura ,  Takaaki Toyooka ,  Kazukuni Hase ,  Katsumi Yamada

IPC分类号： C21D9/46 ,  C22C38/00

CPC分类号： C21D9/46 ,  C22C38/00

摘要： A steel for machine structural use with a better strength-ductility-toughness balance than maraging steel and applications thereof are provided. The steel for machine structural use with excellent strength, ductility, and toughness contains, in percent by mass, more than 0.30% to 0.5% of carbon, 1.0% or less of silicon, 1.5% or less of manganese, 0.025% or less of aluminum, 0.3% to 0.5% of molybdenum, and 0.0005% to 0.01% of boron, and the balance is iron and incidental impurities. The steel has a structure including at least 90% by volume of martensitic structure. The martensitic structure includes blocks having a size of 1.5 μm or less. Dissolved boron is contained in an amount of at least 0.0005% and is present at boundaries of prior austenite grains in a concentration at least 1.5 times that in the prior austenite grains.

摘要翻译： 提供了一种具有比马氏体时效钢更好的强度 - 延性 - 韧性平衡的机械结构用钢及其应用。 具有优异的强度，延展性和韧性的机械结构用钢，以质量％计含有超过0.30％〜0.5％的碳，1.0％以下的硅，1.5％以下的锰，0.025％以下的 铝，0.3〜0.5％的钼和0.0005〜0.01％的硼，余量为铁和杂质。 该钢具有至少90体积％的马氏体组织。 马氏体结构包括尺寸为1.5μm或更小的块。 溶解硼的含量至少为0.0005％，并且在现有奥氏体晶粒的边界处，其浓度至少为现有奥氏体晶粒中的1.5倍。

公开(公告)号：US20070000582A1

公开(公告)日：2007-01-04

申请号：US10555511

申请日：2004-07-16

申请人： Akihiro Matsuzaki ,  Yasuhiro Omori ,  Nobutaka Kurosawa ,  Tohru Hayashi ,  Takaaki Toyooka ,  Katsumi Yamada

发明人： Akihiro Matsuzaki ,  Yasuhiro Omori ,  Nobutaka Kurosawa ,  Tohru Hayashi ,  Takaaki Toyooka ,  Katsumi Yamada

IPC分类号： C21D1/10

CPC分类号： C22C38/22 ,  C21D1/10 ,  C21D9/28 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/02 ,  C22C38/04 ,  Y02P10/253

摘要： The present invention provides a steel material for induction quenching, containing 0.3% to 0.7% of C, 1.1% or less of Si, 0.2% to 1.1% of Mn, 0.05% to 0.6% of Mo, 0.06% or less of S, 0.025% or less of P, 0.25% or less of Al, 0.3% or less of Cr on a mass basis, and the balance being Fe and unavoidable impurities. The steel material has a ferrite structure and a pearlite structure, the total volume fraction of the ferrite structure and the pearlite structure is 90% or more, the thickness of the ferrite structure is 30 μm or less, and the average prior austenite grain diameter of a hard layer obtained by induction quenching is 12 μm or less. Since having superior machinability and superior fatigue strength after induction quenching, this steel material is suitable, for an automobile drive shaft, constant velocity joint, and the like.

摘要翻译： 本发明提供一种用于感应淬火的钢材，其含有C：0.3〜0.7％，Si为1.1％以下，Mn为0.2〜1.1％，Mo为0.05〜0.6％，S为0.06％以下， 0.025％以下的P，0.25％以下的Al，0.3％以下的Cr，其余为Fe和不可避免的杂质。 该钢材具有铁素体结构和珠光体组织，铁素体组织和珠光体组织的总体积分数为90％以上，铁素体组织的厚度为30μm以下，前者的奥氏体平均粒径为 通过感应淬火得到的硬质层为12μm以下。 由于在感应淬火后具有优异的机械加工性和优异的疲劳强度，因此该钢材适用于汽车传动轴，等速万向接头等。

公开(公告)号：US20060196583A1

公开(公告)日：2006-09-07

申请号：US10556298

申请日：2004-07-16

申请人： Tohru Hayashi ,  Yasuhisa Omori ,  Nobutaka Kurosawa ,  Akihiro Matsuzaki ,  Takaaki Toyooka ,  Katsumi Yamada

发明人： Tohru Hayashi ,  Yasuhisa Omori ,  Nobutaka Kurosawa ,  Akihiro Matsuzaki ,  Takaaki Toyooka ,  Katsumi Yamada

IPC分类号： C22C38/14

CPC分类号： C22C38/02 ,  C21D1/10 ,  C21D9/28 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  Y02P10/253

摘要： The present invention provides a machine structural part composed of 0.3% to 0.7% of C, 0.30% or less of Si, 0.2% to 2.0% of Mn, 0.005% to 0.25% of Al, 0.005% to 0.1% of Ti, 0.05% to 0.6% of Mo, 0.0003% to 0.006% of B, 0.06% or less of S, 0.020% or less of P, 0.0030% or less of O on a mass basis, and the balance being Fe and unavoidable impurities. In addition, the machine structural part has a hard layer on at least a part of a surface thereof formed by induction quenching, an average prior austenite grain diameter of the hard layer is 7 μm or less, and the maximum diameter of a non-metal inclusion composed of oxides is 15 μm or less. Since having a high fatigue strength, this machine structural part is suitable for an automobile drive shaft, constant velocity joint, and the like.

摘要翻译： 本发明提供一种机械结构部件，其由C：0.3％〜0.7％，Si：0.30％以下，Mn：0.2〜2.0％，Al：0.005〜0.25％，Ti：0.005〜0.1％ Mo：0.000〜0.6％，B：0.06％以下，S：0.06％以下，P：0.020％以下，O：0.0030％以下，余量为Fe和不可避免的杂质。 此外，机械结构部件在其通过感应淬火形成的表面的至少一部分上具有硬质层，硬质层的平均先前的奥氏体晶粒直径为7μm以下，非金属的最大直径 由氧化物构成的包合物为15μm以下。 由于具有高的疲劳强度，该机械结构部件适用于汽车传动轴，等速万向节等。

公开(公告)号：US20080247900A1

公开(公告)日：2008-10-09

申请号：US11587731

申请日：2005-07-05

申请人： Toru Hayashi ,  Yasuhiro Ohmori ,  Nobutaka Kurosawa ,  Akihiro Matsuzaki ,  Takaaki Toyooka ,  Katsumi Yamada

发明人： Toru Hayashi ,  Yasuhiro Ohmori ,  Nobutaka Kurosawa ,  Akihiro Matsuzaki ,  Takaaki Toyooka ,  Katsumi Yamada

IPC分类号： C22C38/00 ,  C21D1/42 ,  C22C38/20

CPC分类号： C22C38/02 ,  C21D1/10 ,  C22C38/001 ,  C22C38/002 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  C22C38/60 ,  Y02P10/253

摘要： There is provided a component for machine structure having a hardened layer through an induction hardening in at least a part thereof, and more improving fatigue strengths as compared with the conventional ones, in which the hardened layer has a hardness Hv of not less than 750 and an average grain size of prior austenite grains is not more than 7 μm over a full thickness of the hardened layer.

摘要翻译： 提供了一种机械结构部件，其具有通过其至少一部分的感应淬火的硬化层，并且与常规硬化层的硬度Hv不小于750的淬火层相比，具有更高的疲劳强度， 现有奥氏体晶粒的平均晶粒尺寸在硬化层的整个厚度上不超过7μm。

公开(公告)号：US07513959B2

公开(公告)日：2009-04-07

申请号：US10537194

申请日：2003-12-03

申请人： Minoru Takashima ,  Masaaki Kohno ,  Katsumi Yamada ,  Masaki Kawano ,  Kaoru Sato

发明人： Minoru Takashima ,  Masaaki Kohno ,  Katsumi Yamada ,  Masaki Kawano ,  Kaoru Sato

IPC分类号： H01F1/147

CPC分类号： H01F1/16 ,  C21D8/1272 ,  C22C38/004 ,  C22C38/02 ,  C22C38/06 ,  C22C38/08 ,  C22C38/16

摘要： When a non-oriented electrical steel sheet is manufactured, simultaneously having superior magnetic properties and high strengths, a composition containing 0.02% or less of C, 4.5% or less of Si, 5.0% or less (including 0) of Ni, and 0.2% to 4.0% of Cu is used, and a solute Cu is allowed to appropriately remain in finish annealing. In the steel sheet thus obtained, finely shaped Cu is precipitated by aging treatment, and while the magnetic properties are not degraded, the yield stress is increased to not less than CYS (MPa) represented by the following formula: note CYS=180+5,600[% C]+95[% Si]+50[% Mn]+37[% Al]+435[% P]+25[% Ni]+22d−1/2 where d is an average grain diameter (mm) of crystal grains.

摘要翻译： 当制造同时具有优异的磁特性和高强度的无取向电工钢板时，含有C：0.02％以下，Si：4.5％以下，5.0％以下（含0）Ni，0.2 使用％〜4.0％的Cu，使溶质Cu适当地保持在最终退火中。 在这样得到的钢板中，通过时效处理使细小的Cu析出，而在磁特性不降低的同时，屈服应力提高至不低于下式表示的CYS（MPa）：< 公式description =“In-line Formulas”end =“lead”？> note <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In CYC = 180 + 5600 [％C] +95 [％Si] +50 [％Mn] +37 [％Al] +435 [％P] +25 [％Ni] + 22d-1/2 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中d是晶粒的平均粒径（mm）。

公开(公告)号：US07356284B2

公开(公告)日：2008-04-08

申请号：US11400636

申请日：2006-04-10

申请人： Katsumi Yamada ,  Takao Uchida

发明人： Katsumi Yamada ,  Takao Uchida

IPC分类号： G03G15/00

CPC分类号： G03G15/757 ,  G03G15/5008

摘要： An image forming device comprises; an endless-belt shaped image carrier that circulates along a predetermined locus of movement and is trained around a plurality of rollers, the plurality of rollers being structured by at least one driving roller that receives driving force from a drive source and drives, and driven rollers that do not have drive force, a dynamic friction connecting unit that, by dynamically-frictionally connecting the driving roller and at least one of the driven rollers under a predetermined dynamic friction coefficient, dynamically-frictionally drives the at least one driven roller by driving force of the driving roller.

摘要翻译： 图像形成装置包括： 环形带状图像载体，其沿着预定的运动轨迹循环并围绕多个辊进行训练，所述多个辊由至少一个驱动辊构成，所述驱动辊从驱动源接收驱动力，并且驱动辊 不具有驱动力的动态摩擦连接单元，其通过在预定动态摩擦系数下动态地摩擦地连接所述驱动辊和所述从动辊中的至少一个从动辊摩擦地驱动所述至少一个从动辊的驱动力 的驱动辊。

公开(公告)号：US07271944B2

公开(公告)日：2007-09-18

申请号：US11355955

申请日：2006-02-17

申请人： Katsumi Yamada

发明人： Katsumi Yamada

IPC分类号： G02F1/03 ,  G02F1/07

CPC分类号： G02F1/133512 ,  G02F1/133555 ,  G02F1/133615 ,  G02F2001/133342

摘要： An electro-optical device includes: a first optical panel having a pair of substrates with an electro-optical material interposed therebetween; a second optical panel that has a pair of substrates with an electro-optical material interposed therebetween, is disposed so as to overlap the first optical panel in plan view, and is smaller than the first optical panel in plan view; an illumination unit having a light source from which light is emitted and a light guiding member that is disposed between the first and second optical panels so as to make the light emitted from the light source incident on the first and second optical panels; and an optical absorber provided in a region other than a display area of the second optical panel between the first and second optical panels.

摘要翻译： 电光装置包括：第一光学面板，其具有插入其间的电光材料的一对基板; 具有插入其间的电光材料的一对基板的第二光学面板被布置成在俯视图中与第一光学面板重叠，并且在平面图中小于第一光学面板; 照明单元，具有发光的光源和设置在第一和第二光学板之间的导光构件，以使从光源发射的光入射在第一和第二光学面板上; 以及设置在所述第一和第二光学面板之间的所述第二光学面板的显示区域以外的区域中的光吸收体。

公开(公告)号：US5682362A

公开(公告)日：1997-10-28

申请号：US661253

申请日：1996-06-10

申请人： Seiichi Suzuki ,  Hidefumi Ishibashi ,  Takaharu Shigeta ,  Katsumi Yamada

发明人： Seiichi Suzuki ,  Hidefumi Ishibashi ,  Takaharu Shigeta ,  Katsumi Yamada

IPC分类号： G11B7/085 ,  G11B21/08 ,  G11B17/22 ,  G11B5/596

CPC分类号： G11B21/085 ,  G11B21/081 ,  G11B21/083 ,  G11B7/08517 ,  G11B7/08529 ,  G11B7/08588 ,  G11B7/08541

摘要： The invention is directed at ensuring stable track accessing despite the presence of backlash in a pickup drive mechanism, and at providing a precise track accessing operation not affected by the relative position or relative speed between pickup and carriage at the time a track access start instruction is issued. To achieve this, when the track access start instruction is issued in a tracking condition in which the pickup is following a track on a recording medium, the carriage is caused to begin to move in a track access direction by the action of a coarse actuator, while the pickup is still kept on track of the recording medium by means of a fine actuator. When the position of the pickup relative to the carriage has reached a boundary of a switch-off range preset within a movable range of the pickup or moved outside the switch-off range, the track following action of the pickup by the fine actuator is stopped, and the pickup is moved to the target track by using coarse driving control and, as necessary, fine driving control in collaborating fashion.

摘要翻译： 本发明的目的在于尽管在拾取器驱动机构中存在间隙，并且提供在轨道存取开始指令是时刻不受拾取和滑架之间的相对位置或相对速度的影响的精确的轨道存取操作 发行。 为了实现这一点，当在拾取器跟随记录介质上的轨道的跟踪条件下发出轨道接入开始指令时，通过粗略致动器的动作使滑架开始沿轨道进入方向移动， 而拾音器仍然通过精细致动器保持在记录介质上。 当拾取器相对于托架的位置已经达到在拾取器的可移动范围内预设的关闭范围的边界或者移动到关闭范围之外时，停止通过精细致动器的拾取器的跟踪动作 ，并且通过使用粗略驾驶控制并且根据需要以协作的方式将拾取器移动到目标轨道。

公开(公告)号：USD364384S

公开(公告)日：1995-11-21

申请号：US28486

申请日：1994-09-16

申请人： Tomio Shimizu ,  Akira Nakahira ,  Shinichi Kobayashi ,  Katsumi Yamada

设计人： Tomio Shimizu ,  Akira Nakahira ,  Shinichi Kobayashi ,  Katsumi Yamada

公开(公告)号：US4776440A

公开(公告)日：1988-10-11

申请号：US804144

申请日：1985-12-03

申请人： Katsumi Yamada ,  Toshinari Hojima

发明人： Katsumi Yamada ,  Toshinari Hojima

IPC分类号： F16F9/02 ,  F16F9/06 ,  F16F9/49 ,  F16F9/48 ,  E05F3/00 ,  F16J1/00

CPC分类号： F16F9/0245 ,  F16F9/06 ,  F16F9/49 ,  Y10T16/281

摘要： A shock absorber comprises a cylinder with a cylindrical bore, an actuator piston with a rod slidably received in the bore, and an adjustment piston slidably received in the bore and resiliently kept in a predetermined position. The adjustment piston cooperates with the actuator piston to define an adjustment chamber therebetween. The adjustment piston is movable in response to pressure developing within the adjustment chamber to vary a rate of air flow between the adjustment chamber and the ambient atmosphere so as to decelerate the actuator piston during its extending movement relative to the cylinder, thus providing a slow and gradual extending movement of the actuator piston.

摘要翻译： 减震器包括具有圆柱形孔的气缸，具有可滑动地容纳在孔中的杆的致动器活塞和可滑动地容纳在孔中并弹性地保持在预定位置的调节活塞。 调节活塞与致动器活塞协作以在它们之间限定调节室。 调节活塞响应于调节室内的压力而可移动，以改变调节室和环境大气之间的空气流速，从而使致动器活塞在其相对于气缸的延伸运动期间减速，从而提供缓慢和 致动器活塞的逐渐延伸运动。