公开(公告)号：US5403643A

公开(公告)日：1995-04-04

申请号：US903966

申请日：1992-06-26

Applicant: Eiji Tsuru

Inventor： Eiji Tsuru

IPC: B62D55/20 ,  B62D55/24 ,  B32B3/00 ,  B62D55/00

CPC classification number: B62D55/202 ,  B62D55/24 ,  Y10T428/24182

Abstract: A metallic core for a rubber track includes wing portions to be embedded in an elastic member of the rubber track, an engaging portion at the center of the core for engaging a driving sprocket, and a pair of protrusions provided on both sides of the engaging portion and projecting from the inner circumferential surface of the rubber track. Each of the protrusions is provided with at least one extension extending in the longitudinal direction of the rubber track, and the top surfaces at the extension and at the center of the protrusion for rolling an idler thereon are connected to each other with a surface gently inclined downward toward the center of the protrusion, thereby maintaining idlers rolling on the metallic cores of a rubber track at a substantially constant level without upward and downward movements. The protrusions may be formed with shoulders along their longitudinal directions and in symmetry with each other to form upper top surfaces which are flat for an upper idler and lower top surfaces for a lower idler, the lower top surfaces at the extensions are higher than those at the centers of the protrusions.

Abstract translation: 用于橡胶履带的金属芯包括嵌入在橡胶履带的弹性件中的翼部，用于与驱动链轮接合的芯的中心处的接合部，以及设置在接合部的两侧的一对突起 并从橡胶履带的内周面突出。 每个突起设置有至少一个在橡胶履带的纵向方向上延伸的延伸部，并且在其上的用于滚动惰轮的突出部的延伸部分和中心处的顶表面彼此连接，表面轻轻地倾斜 向下朝向突起的中心，从而在没有向上和向下移动的情况下以基本上恒定的水平维持惰轮在橡胶履带的金属芯上滚动。 突起可以沿着它们的纵向方向形成为肩部并且彼此对称，以形成上部上表面，其对于上部惰轮是平坦的，并且用于下部惰轮的下部顶部表面，在延伸部分处的下部顶部表面高于 突起的中心。

公开(公告)号：US20090044882A1

公开(公告)日：2009-02-19

申请号：US11921349

申请日：2006-06-09

Applicant: Hitoshi Asahi ,  Taro Muraki ,  Hideyuki Nakamura ,  Eiji Tsuru

Inventor： Hitoshi Asahi ,  Taro Muraki ,  Hideyuki Nakamura ,  Eiji Tsuru

IPC: C21D9/08 ,  C22C38/00

CPC classification number: C22C38/002 ,  C21D1/22 ,  C21D1/25 ,  C21D9/14 ,  C21D9/50 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14

Abstract: The invention provides an oil well pipe for expandable tubular applications excellent in post-expansion toughness and a method of manufacturing the oil well pipe. The oil well pipe for expandable tubular applications comprises, in mass %, C: 0.03 to 0.14%, Si: 0.8% or less, Mn: 0.3 to 2.5%, P: 0.03% or less, S: 0.01% or less, Ti: 0.005 to 0.03%, Al: 0.1% or less, N: 0.001 to 0.01%, B: 0.0005 to 0.003%, optionally comprises one or move of Nb, Ni, Mo, Cr, Cu and V, and further optionally comprises one or both of Ca and REM, satisfies the relationship A=2.7C+0.4Si+Mn+0.45Ni+0.45Cu+0.8Cr+2Mo≧1.8, has a balance of iron and unavoidable impurities, and is formed of tempered martensite structure. The manufacturing method according to the invention is characterized in subjecting a steel stock pipe of the foregoing composition to hardening from a temperature range of Ac3 point+30° C. or greater and to tempering at a temperature of 350 to 720° C.

Abstract translation: 本发明提供了一种用于后膨胀韧性优异的可膨胀管状应用的油井管和一种制造油井管的方法。 可膨胀管状的油井管以质量％计含有C：0.03〜0.14％，Si：0.8％以下，Mn：0.3〜2.5％，P：0.03％以下，S：0.01％以下，Ti ：0.005〜0.03％，Al：0.1％以下，N：0.001〜0.01％，B：0.0005〜0.003％，任选地包含Nb，Ni，Mo，Cr，Cu和V中的一种或多种， 或Ca和REM两者满足A = 2.7C + 0.4Si + Mn + 0.45Ni + 0.45Cu + 0.8Cr + 2Mo> = 1.8的关系，其余为铁和不可避免的杂质，并且由回火马氏体组织形成 。 根据本发明的制造方法的特征在于，将上述组成的钢坯管从Ac 3点+ 30℃以上的温度范围进行硬化，并在350〜720℃的温度下回火。

公开(公告)号：US07459033B2

公开(公告)日：2008-12-02

申请号：US10518663

申请日：2003-06-12

Applicant: Hitoshi Asahi ,  Eiji Tsuru

Inventor： Hitoshi Asahi ,  Eiji Tsuru

IPC: C22C38/12 ,  C22C38/14

CPC classification number: B21C37/08 ,  C21D8/10 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  Y10S148/909

Abstract: The present invention provides a method of production of oil country tubular goods having a small drop in collapse pressure after expansion and having a collapse pressure recovering by low temperature ageing at about 100° C. and oil country tubular goods obtained by this method of production.This method of production comprises hot rolling a steel slab having amounts of addition of C, Mn, P, S, Nb, Ti, Al, and N in specific ranges and having a balance of iron and unavoidable impurities and shaping the steel strip coiled at a temperature of not more than 300° C. as it is into a tube. Alternatively, it comprises heating steel pipe having amounts of addition of C, Mn, P, S, Nb, Ti, Al, and N in specific ranges and having a balance of iron and unavoidable impurities to a temperature of the Ac3 [° C.] to 1150° C., then cooling it in a range of 400 to 800° C. at a rate of 5 to 50° C./second.

Abstract translation: 本发明提供一种制造膨胀后的塌陷压力小而且在约100℃下通过低温老化回收的塌陷压力和通过该生产方法获得的油管制品的油井筒制品的生产方法。 这种生产方法包括在特定范围内热轧具有C，Mn，P，S，Nb，Ti，Al和N的添加量的钢坯，并且具有铁和不可避免的杂质的平衡，并将钢带卷绕在 温度不超过300℃，因为它进入管中。 或者，它包括加热具有特定范围内的C，Mn，P，S，Nb，Ti，Al和N的量的钢管，并且其余量为铁和不可避免的杂质至Ac 3 [℃]的温度。 ]至1150℃，然后以5至50℃/秒的速率在400至800℃的范围内冷却。

公开(公告)号：US20050178456A1

公开(公告)日：2005-08-18

申请号：US10515543

申请日：2003-05-23

Applicant: Eiji Tsuru ,  Hitoshi Asahi

Inventor： Eiji Tsuru ,  Hitoshi Asahi

IPC: B21C37/08 ,  C21D9/08 ,  C21D9/50 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  F16L9/00 ,  B21D31/04

CPC classification number: C22C38/02 ,  B21C37/065 ,  B21C37/08 ,  B21C37/0822 ,  B21C37/0826 ,  C21D9/08 ,  C21D9/50 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  Y10T29/18

Abstract: The present invention relates to UOE steel pipe excellent in collapse characteristics formed by the UOE production method and a method for forming this UOE steel pipe, said UOE steel pipe characterized in that a ratio between compression and tension of yield strength in the circumferential direction is at least 1.05 near the inside surface and is at least 0.9 to not more to 1.0 from the center of plate thickness to the outside surface.

Abstract translation: 本发明涉及通过UOE制造方法形成的具有优异的塌陷特性的UOE钢管和形成该UOE钢管的方法，所述UOE钢管的特征在于，圆周方向的屈服强度的压缩与张力之比为 在内表面附近至少为1.05，并且从板厚中心到外表面为至少0.9至不大于1.0。

公开(公告)号：US06843539B2

公开(公告)日：2005-01-18

申请号：US10089243

申请日：2000-12-28

Applicant: Eiji Tsuru

Inventor： Eiji Tsuru

IPC: B62D55/253 ,  B60C55/24

CPC classification number: B62D55/244 ,  Y10T428/192

Abstract: An elastic endless crawler according to the present invention comprises an annular belt-shaped elastic crawler body and a plurality of cords with ends, said cords being disposed substantially parallel with one another at predetermined intervals and embedded in the crawler body, wherein one end and the other end of each cord are overlapped, as seen from the belt side. Further, at at least one of a crawler inner peripheral side and a crawler outer peripheral side, there are provided a plurality of members for holding the cord ends within the crawler body. As a result, a chance of free ends of embedded steel cords protruding out from the rubber body during use of the rubber crawler and a chance of the rubber crawler running off of a unit for driving for rotation thereof can be eliminated.

Abstract translation: 根据本发明的弹性环形履带，包括环形带状弹性履带体和多个具有端部的绳索，所述绳索以预定间隔彼此大致平行地设置并嵌入履带主体中，其中一端和 每个绳索的另一端重叠，如从皮带侧看。 此外，在履带内周侧和履带外周侧的至少一方，设置有用于将绳索端部保持在履带体内的多个构件。 结果，可以消除在使用橡胶履带期间从橡胶体突出的嵌入式钢丝绳的自由端的机会，并且可以消除橡胶履带从用于驱动其旋转的单元流出的机会。

公开(公告)号：USD454890S1

公开(公告)日：2002-03-26

申请号：US29137879

申请日：2001-03-02

Applicant: Eiji Tsuru

Designer： Eiji Tsuru

公开(公告)号：US06264761B1

公开(公告)日：2001-07-24

申请号：US09214635

申请日：1999-01-06

Applicant: Yasushi Hasegawa ,  Eiji Tsuru ,  Yuichi Sato ,  Shigekatsu Ozaki

Inventor： Yasushi Hasegawa ,  Eiji Tsuru ,  Yuichi Sato ,  Shigekatsu Ozaki

IPC: C22C1903

CPC classification number: B23K35/3033 ,  B23K35/0233 ,  Y10T428/12431

Abstract: The present invention provides liquid phase diffusion bonding alloy foils capable of bonding in an oxidizing atmosphere, which can ensure joints with a homogeneous structure and adequate tensile strength in air in a short period of time using various alloys or Fe-based materials as materials to be bonded; specifically, they are Ni-based liquid phase diffusion bonding alloy foils with compositions comprising as essential components in terms of atomic percent, the diffusion elements B or P at 1.0-20.0% or B and P each at 1.0-20.0%, and Si at 0.5 to ≦15% or 0.5 to

Abstract translation: 本发明提供能够在氧化气氛中结合的液相扩散接合合金箔，其可以使用各种合金或Fe基材料作为材料在短时间内确保接头具有均匀的结构和足够的抗拉强度 保税 具体地说，它们是Ni基液相扩散接合合金箔，其组成包括原子百分数，扩散元素B或P为1.0-20.0％或B和P各自为1.0-20.0％的必要组分，Si为 0.5至<= 15％或0.5至<10％，V为0.1-20.0％，余量基本为Ni和不可避免的杂质，厚度为3-100μm。 如果需要，可酌情选择性地包括一种或多种Cr，Mn或Mo，Co和/或一种或多种W，Nb和Ti。 具有基本无定形晶体结构的组合物是最有效的。

公开(公告)号：US09188253B2

公开(公告)日：2015-11-17

申请号：US13806415

申请日：2011-07-13

Applicant: Mitsuru Sawamura ,  Hitoshi Asahi ,  Eiji Tsuru ,  Jun Agata

Inventor： Mitsuru Sawamura ,  Hitoshi Asahi ,  Eiji Tsuru ,  Jun Agata

IPC: C22C38/02 ,  C22C38/04 ,  C22C38/48 ,  C21D8/04 ,  F16L9/02 ,  C21D8/02 ,  C21D8/10 ,  C21D9/14 ,  C22C38/00 ,  C22C38/06 ,  C22C38/12 ,  B21B23/00

CPC classification number: F16L9/02 ,  B21B23/00 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/105 ,  C21D9/14 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14

Abstract: A steel pipe with dual phase structure includes, as chemical composition, by mass %, C: 0.07% to 0.15%, Si: 0.1% to 0.5%, Mn: 0.8% to 1.9%, Nb: 0.020% to 0.10%, P: limited to 0.05% or less, S: limited to 0.01% or less, Al: limited to 0.1% or less, and a balance consisting of iron and unavoidable impurities, wherein, when [X] is amount of element X in mass %, carbon equivalent Ceq defined by Equation of Ceq=[C]+[Mn]/6 is 0.25 to 0.40 and [Nb]×[C]≧0.002 is satisfied, and includes, as metallographic structure, by area %, ferrite of 80% to 98% and martensite, residual austenite, or mixture thereof of 2% to 20% in total, wherein average grain size of ferrite is 1 μm to less than 8 μm and average grain size of martensite, residual austenite, or mixture thereof is 0.1 μm to 2 μm.

Abstract translation: 具有双相结构的钢管以质量％计含有C：0.07〜0.15％，Si：0.1〜0.5％，Mn：0.8〜1.9％，Nb：0.020〜0.10％，P ：限于0.05％以下，S：0.01％以下，Al：0.1％以下，余量由铁和不可避免的杂质构成，其中，[X]为质量％ 由Ceq = [C] + [Mn] / 6的方程式定义的碳当量Ceq为0.25〜0.40，[Nb]×[C]≥0.002，作为金相组织，以面积％计，铁素体80 ％至98％，马氏体，残余奥氏体或其混合物总计为2％至20％，其中铁素体的平均粒径为1μm至小于8μm，马氏体，残余奥氏体或其混合物的平均粒径为 0.1μm〜2μm。

公开(公告)号：US08815024B2

公开(公告)日：2014-08-26

申请号：US10588837

申请日：2005-02-15

Applicant: Hitoshi Asahi ,  Eiji Tsuru

Inventor： Hitoshi Asahi ,  Eiji Tsuru

IPC: C22C38/00 ,  C22C38/06 ,  C22C38/58

CPC classification number: C22C38/02 ,  C21D6/005 ,  C21D9/08 ,  C21D9/46 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/04 ,  Y10T428/13

Abstract: The present invention provides steel plate or steel pipe with small occurrence of the Bauschinger effect and methods of production of the same, particularly steel pipe used for steel pipe for oil wells or line pipe with a small drop in the compression strength in the circumferential direction due to the Bauschinger effect when expanded and methods of production of the same, that is steel plate or steel pipe with small occurrence of the Bauschinger effect characterized by having a dual-phase structure substantially comprising a ferrite structure and fine martensite which is dispersed in the ferrite structure. Further, this steel plate or steel pipe contains, by mass %, C: 0.03 to 0.30%, Si: 0.01 to 0.8%, Mn: 0.3 to 2.5%, P: 0.03% or less, S: 0.01% or less, Al: 0.001 to 0.01%, and N: 0.01% or less and a balance of iron and unavoidable impurities.

Abstract translation: 本发明提供了一种具有较少出现Bauschinger效应的钢板或钢管及其制造方法，特别是用于油井或管线管的钢管，其圆周方向的压缩强度小压降 在膨胀时的Bauschinger效应及其生产方法，即具有较少出现Bausinger效应的钢板或钢管的特征在于具有基本上包含铁素体结构的双相结构和分散在铁素体中的细小马氏体 结构体。 此外，该钢板或钢管以质量％计含有C：0.03〜0.30％，Si：0.01〜0.8％，Mn：0.3〜2.5％，P：0.03％以下，S：0.01％以下，Al ：0.001〜0.01％，N：0.01％以下，余量为铁和不可避免的杂质。

公开(公告)号：US08399418B2

公开(公告)日：2013-03-19

申请号：US12810476

申请日：2008-12-24

Applicant: Hideki Takeuchi ,  Eiji Tsuru

Inventor： Hideki Takeuchi ,  Eiji Tsuru

IPC: C07H17/02 ,  A61K31/7056 ,  A61P3/10

CPC classification number: C07H17/02

Abstract: The present invention provides a novel form of 3-(3-{4-[3-(β-D-glucopyranosyloxy)-5-isopropyl-1H-pyrazol-4-ylmethyl]-3-methylphenoxy}propylamino)-2,2-dimethylpropionamide with improved storage stability. Since bis[3-(3-{4-[3-(β-D-glucopyranosyloxy)-5-isopropyl-1H-pyrazol-4-ylmethyl]-3-methylphenoxy}propylamino)-2,2-dimethylpropionamide]monosebacate has extremely excellent storage stability, it is useful as a drug substance. Furthermore, it shows an extremely good crystalline property and can be purified by a convenient method, and therefore is suitable for the industrial preparation.

Abstract translation: 本发明提供3-（3- {4- [3-（＆bgr。-D-吡喃葡萄糖氧基）-5-异丙基-1H-吡唑-4-基甲基] -3-甲基苯氧基}丙基氨基） 具有改进的储存稳定性的2-二甲基丙酰胺。 由于双[3-（3- {4- [3-（＆bgr-D-吡喃葡萄糖氧基）-5-异丙基-1H-吡唑-4-基甲基] -3-甲基苯氧基}丙基氨基）-2,2-二甲基丙酰胺] 具有非常优异的储存稳定性，作为药物有用。 此外，其显示出非常好的结晶性，并且可以通过方便的方法进行纯化，因此适用于工业制备。