公开(公告)号：US20110174409A1

公开(公告)日：2011-07-21

申请号：US13120589

申请日：2009-09-24

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

IPC分类号： F16L11/00 ,  B21D22/00

CPC分类号： B21D5/10 ,  B21D39/02 ,  B21D47/01 ,  B21D51/06 ,  B21D51/10 ,  Y10T29/49922

摘要： The number of sub-parts of a closed structure part and the number of steps for manufacturing the closed structure part can be reduced and, therefore, the closed structure part can be efficiently manufactured. In a hemming press step, a punch is further lowered, and a pair of flange portions is inserted into a slit clearance. Hemming prongs are bent and each of the hemming prongs sandwiches the flange portion. The flange portion, which is one of the two flange portions, is joined to the other flange portion. At the same time, a pair of press forming surfaces of the punch presses a metal plate and performs press-forming on a pair of shoulder portions of a blank into a predetermined shape. The flange portion can be fixed to the other flange portion using the hemming prongs. The pair of shoulder portions of the blank can be press-formed into the predetermined shape.

摘要翻译： 可以减少封闭结构部分的子部件的数量和用于制造封闭结构部件的步骤数量，因此可以有效地制造封闭结构部件。 在折边加压步骤中，冲头进一步下降，并且一对凸缘部分插入狭缝间隙。 折弯叉弯曲，每个折边叉将三角法兰部分夹在中间。 作为两个凸缘部之一的凸缘部与另一个凸缘部接合。 同时，一对冲压成形面冲压金属板，并对坯料的一对肩部进行压制成形为预定的形状。 凸缘部分可以使用折边叉固定到另一个凸缘部分。 坯料的一对肩部可以压制成预定的形状。

公开(公告)号：US07656077B2

公开(公告)日：2010-02-02

申请号：US10596475

申请日：2004-12-17

申请人： Takaaki Hira ,  Takeshi Okamura ,  Masaki Terazono ,  Hirotaka Tsuyoshi ,  Ryuusuke Tsuyoshi, legal representative ,  Katsushi Sakaue

发明人： Takaaki Hira ,  Takeshi Okamura ,  Masaki Terazono ,  Hirotaka Tsuyoshi ,  Katsushi Sakaue

IPC分类号： H01L41/047

CPC分类号： F02M51/0603 ,  H01L41/0471 ,  H01L41/0477 ,  H01L41/1876 ,  H01L41/273 ,  Y10T29/42

摘要： A laminated piezoelectric device obtained by alternately laminating the piezoelectric layers containing Pb and the conducting layers containing palladium as a conducting component, wherein the piezoelectric layer formed between the two conducting layers has layer regions where Pb and Pd are mixed together in the interfacial portions thereof relative to the conducting layers, the layer regions having a thickness of not larger than 3% of the thickness of the piezoelectric layer. The laminated piezoelectric device is formed by co-firing the Pb-containing piezoelectric layers and the palladium (Pd)-containing layers, the piezoelectric layers therein having a large insulation resistance and good piezoelectric characteristics.

摘要翻译： 通过交替层叠含有Pb的压电层和含有钯的导电层作为导电成分而获得的叠层压电元件，其中形成在两个导电层之间的压电层具有其相互界面部分中Pb和Pd混合在一起的层区域 对于导电层，层区域的厚度不大于压电层的厚度的3％。 叠层压电元件通过共烧烧含有Pb的压电层和含钯（Pd）的层，其中具有绝缘电阻大的压电层和良好的压电特性而形成。

公开(公告)号：US06331216B1

公开(公告)日：2001-12-18

申请号：US09214226

申请日：1998-12-30

申请人： Takaaki Toyooka ,  Akira Yorifuji ,  Masanori Nishimori ,  Motoaki Itadani ,  Yuji Hashimoto ,  Takatoshi Okabe ,  Nobuki Tanaka ,  Taro Kanayama ,  Osamu Furukimi ,  Masahiko Morita ,  Takaaki Hira ,  Saiji Matsuoka

发明人： Takaaki Toyooka ,  Akira Yorifuji ,  Masanori Nishimori ,  Motoaki Itadani ,  Yuji Hashimoto ,  Takatoshi Okabe ,  Nobuki Tanaka ,  Taro Kanayama ,  Osamu Furukimi ,  Masahiko Morita ,  Takaaki Hira ,  Saiji Matsuoka

IPC分类号： C21D713

CPC分类号： C21D8/10 ,  C21D2201/00 ,  C21D2211/005

摘要： The steel pipe has a structure composed mainly of ferrite or ferrite plus pearlite or ferrite plus cementite. The steel pipe is characterized by grain size not greater than 3 &mgr;m, preferably not greater than 1 &mgr;m, elongation greater than 20%, tensile strength (TS:MPa) and elongation (E1:%) whose product is greater than 10000, and percent ductile fracture greater than 95%, preferably 100%, measured by Charpy impact test on an actual pipe at −100° C. The structure is characterized by C: 0.005-0.03%, Si: 0.01-3.0%, Mn: 0.01-2.0%, and Al: 0.001-0.10% on a weight basis, and is composed of ferrite or ferrite and a secondary phase, with ferrite grains being not greater than 3 &mgr;m and the secondary phase having an areal ratio not more than 30%. A steel pipe stock having the above-mentioned composition is heated at a temperature of (Ac1+50° C.) to 400° C. and subsequently reduced at a rolling temperature of (Ac1+50° C.) to 400° C. such that the cumulative reduction of diameter is greater than 20%. The reducing is preferably performed such that at least one of rolling passes reduces the diameter by more than 6% per pass. The steel pipe will have high ductility and high strength and will be superior in toughness and stress corrosion cracking resistance, if the content of C, Si, Mn, and other alloying elements is limited low and reducing is performed at the temperature specified above. The resulting steel pipe has good fatigue resistance and is suitable for use as line pipe.

摘要翻译： 钢管具有主要由铁素体或铁素体加珠光体或铁素体和渗碳体组成的结构。 钢管的特征在于，其粒径不大于3μm，优选不大于1μm，伸长率大于20％，拉伸强度（TS：MPa）和伸长率（E1：％）大于10000， 延性断裂大于95％，优选100％，通过夏比冲击试验在-100℃的实际管上测量。该结构的特征在于C：0.005-0.03％，Si：0.01-3.0％，Mn：0.01-2.0 ％，Al：0.001-0.10％，由铁素体或铁素体和二次相组成，铁素体晶粒不大于3μm，第二相的面积比不大于30％。 将具有上述组成的钢管坯料在（Ac1 + 50℃）的温度下加热至400℃，随后在（Ac1 + 50℃）的轧制温度下降低至400℃。 使得直径的累积减小大于20％。 优选地进行还原，使得至少一个轧制通道将直径每次通过减少6％以上。 如果C，Si，Mn和其他合金元素的含量低，并且在上述规定的温度下进行还原，则钢管将具有高延展性和高强度，并且在韧性和耐应力腐蚀开裂性方面优异。 所得钢管具有良好的抗疲劳性能，适用于管线管。

公开(公告)号：US5558727A

公开(公告)日：1996-09-24

申请号：US393445

申请日：1995-02-23

申请人： Kazuya Miura ,  Shusaku Takagi ,  Takaaki Hira ,  Toshiyuki Kato ,  Nobutaka Kurosawa

发明人： Kazuya Miura ,  Shusaku Takagi ,  Takaaki Hira ,  Toshiyuki Kato ,  Nobutaka Kurosawa

IPC分类号： C21D1/19 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/18

CPC分类号： C21D8/0273 ,  C21D8/0226 ,  C21D1/19 ,  C21D2211/005 ,  C21D2211/008

摘要： A high strength steel sheet for automobiles which exhibits excellent press-formability strength against impact resistance at a high strain rate is hot rolled under specific conditions, or is cold rolled from hot rolled sheet which is prepared under conventional conditions, with the cold rolled steel being annealed under specific conditions. The steel sheet comprises 0.010-0.10 wt % of C, not greater than 1.50 wt % of Si, 0.50-3.00 wt % of Mn, not greater than 0.010 wt % of S and 0.01-0.1 wt % of Al, and one kind or two kinds selected from 0.05-0.15 wt % of P and 0.5-1.5 wt % of Cr, and the balance being Fe and inevitable impurities and having a structure mainly composed of 2-30 vol % of martensite phase and a ferrite phase containing a solution C not greater than 0.0010 wt %.

摘要翻译： 用于汽车的高强度钢板在高应变率下表现出优异的耐冲击强度，在特定条件下进行热轧，或者由常规条件下制备的热轧板进行冷轧，冷轧钢为 在特定条件下退火。 该钢板包含0.010-0.10重量％的C，不大于1.50重量％的Si，0.50-3.00重量％的Mn，不大于0.010重量％的S和0.01-0.1重量％的Al，以及一种或 两种选自P为0.05-0.15重量％和Cr为0.5-1.5重量％，余量为Fe和不可避免的杂质，主要由2-30体积％的马氏体相组成的结构和含有溶液的铁素体相 C不大于0.0010重量％。

公开(公告)号：US4575053A

公开(公告)日：1986-03-11

申请号：US623950

申请日：1984-06-25

申请人： Kichizaemon Nakagawa ,  Takaaki Hira ,  Hideo Abe ,  Toru Sasaki ,  Yuji Shimoyama

发明人： Kichizaemon Nakagawa ,  Takaaki Hira ,  Hideo Abe ,  Toru Sasaki ,  Yuji Shimoyama

IPC分类号： C21D9/56

CPC分类号： C21D9/563

摘要： A continuous annealing apparatus for metal strips comprises cylindrical rolls each arranged at a location immediately before the metal strip passes about a hearth roll in a high temperature heat-treatment region of the apparatus. An axis of the cylindrical roll is finely tilted relative to the hearth roll within 0.15 degree in directions compensating for shifted distances of the metal strip on the hearth roll in response to every 50 mm shift of the strip, thereby preventing meandering and buckling of the metal strip caused by the hearth rolls.

摘要翻译： 用于金属条的连续退火装置包括圆柱形辊，每个圆柱形辊布置在紧接在金属带在设备的高温热处理区域内绕炉底辊的位置。 响应于条带的每50mm的偏移，圆柱形辊的轴线相对于炉床辊在0.15度内精细地倾斜，以补偿炉床辊上的金属带的移动距离，从而防止金属的弯曲和弯曲 由炉底辊引起的条带。

公开(公告)号：US08844581B2

公开(公告)日：2014-09-30

申请号：US13120589

申请日：2009-09-24

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

IPC分类号： B21D22/00 ,  B21D51/10 ,  B21D39/02 ,  B21D51/06 ,  B21D47/01 ,  B21D5/10

CPC分类号： B21D5/10 ,  B21D39/02 ,  B21D47/01 ,  B21D51/06 ,  B21D51/10 ,  Y10T29/49922

摘要： The number of sub-parts of a closed structure part and the number of steps for manufacturing the closed structure part can be reduced and, therefore, the closed structure part can be efficiently manufactured. In a hemming press step, a punch is further lowered, and a pair of flange portions is inserted into a slit clearance. Hemming prongs are bent and each of the hemming prongs sandwiches the flange portion. The flange portion, which is one of the two flange portions, is joined to the other flange portion. At the same time, a pair of press forming surfaces of the punch presses a metal plate and performs press-forming on a pair of shoulder portions of a blank into a predetermined shape. The flange portion can be fixed to the other flange portion using the hemming prongs. The pair of shoulder portions of the blank can be press-formed into the predetermined shape.

摘要翻译： 可以减少封闭结构部分的子部件的数量和用于制造封闭结构部件的步骤数量，因此可以有效地制造封闭结构部件。 在折边加压步骤中，冲头进一步下降，并且一对凸缘部分插入狭缝间隙。 折弯叉弯曲，每个折边叉将三角法兰部分夹在中间。 作为两个凸缘部之一的凸缘部与另一个凸缘部接合。 同时，一对冲压成形面冲压金属板，并对坯料的一对肩部进行冲压成形为规定形状。 凸缘部分可以使用折边叉固定到另一个凸缘部分。 坯料的一对肩部可以压制成预定的形状。

公开(公告)号：US20120204993A1

公开(公告)日：2012-08-16

申请号：US13391850

申请日：2010-09-15

申请人： Kazuhiko Higai ,  Takayuki Futatsuka ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Yuji Yamasaki

发明人： Kazuhiko Higai ,  Takayuki Futatsuka ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Yuji Yamasaki

IPC分类号： F16L9/00 ,  B21C37/06

CPC分类号： B21D47/01 ,  B21C37/0803 ,  B21D11/20 ,  B21D47/04 ,  B21D51/06 ,  Y10T29/49391

摘要： A method for manufacturing includes a polygonal shape closed structure part with a bent shape in the longitudinal direction only by press forming. The method uses two metal plates for manufacturing a curvilineal closed structure part and includes a press forming process of forming straight or bent folding lines in the longitudinal direction of the two metal plates at positions corresponding to a polygonal bent shape with a flange formed at least at one of the ends of the width direction of each plate, a process of forming a closed structure by laying the two metal plates to overlap each other flange to flange and end to end for ends without flanges and by welding the portions laid to overlap each other in the longitudinal direction of the metal plates, and a process of forming a polygonal shape closed structure having a bent shape in the longitudinal direction by holding both ends of the closed structure and by compressing it toward its central axis.

摘要翻译： 一种制造方法包括仅通过冲压成形在纵向上具有弯曲形状的多边形封闭结构部分。 该方法使用两个金属板来制造曲线性封闭结构部件，并且包括压制成型工艺，该方法是在对应于多边形弯曲形状的位置处在两个金属板的纵向上形成直的或弯曲的折叠线，凸缘至少形成在 每个板的宽度方向的端部之一，通过将两个金属板铺设成彼此凸缘到凸缘并且端部到端而形成闭合结构的过程而不具有凸缘并且通过焊接彼此重叠的部分 在金属板的纵向方向上，并且通过保持封闭结构的两端并且朝向其中心轴线压缩而形成具有在纵向方向上的弯曲形状的多边形封闭结构的工艺。

公开(公告)号：US20110174868A1

公开(公告)日：2011-07-21

申请号：US13120227

申请日：2009-09-24

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

IPC分类号： B23K31/02 ,  B21D31/00 ,  B21D5/02 ,  B23K37/00

CPC分类号： B21D39/03 ,  B21D5/10 ,  B21D39/00 ,  B21D39/037 ,  B21D39/04 ,  B21D39/048 ,  B23K1/00 ,  B23K1/14 ,  B23K1/16 ,  B23K1/18

摘要： A method for manufacturing a closed structure part has a closed section using a blank made from a metal plate by pressing the blank using a press forming die and fixing a pair of joint ends of the blank to each other, the method including a pre-forming step of processing the blank into an interim part having a closed section corresponding to the closed structure part, a closing step of, after the pre-forming step is completed, moving the joint ends of the interim part toward each other and urging, against one of the joint ends, a concave flange processing portion formed on one of a pair of press forming surfaces of the press forming die at the edge end adjacent to the other press forming surface, and a press joining step of, after the closing step is completed, further moving the press forming die in a pressing direction, bending the one of the joint ends using a pressing force applied from the flange processing portion so that the joint end overlaps the outer surface of the other join end and a latch flange portion for latching the other joint end is formed and, simultaneously, pressing the blank using the pair of press forming surfaces and press-forming outer portions of the pair of the joint ends of the blank into predetermined shapes.

摘要翻译： 封闭结构部件的制造方法具有使用由金属板制成的坯料的封闭部分，所述坯料通过使用压制成型模具压制坯料并将坯料的一对接合端彼此固定，所述方法包括预成形 将坯料加工成具有对应于封闭结构部分的封闭部分的中间部分的步骤;在预成形步骤完成之后的封闭步骤，使临时部件的接合端朝向彼此移动，并将其推向一个 在与所述另一冲压成形面相邻的边缘端形成在所述冲压成形模具的一对冲压成形面的一个上的凹凸缘加工部，以及在所述闭合工序结束后的加压接合工序 进一步在冲压方向移动冲压成型模具，使用从凸缘加工部施加的按压力来弯曲一个接合端部，使得接合端部与另一接头的外表面重叠 形成用于锁定另一个接合端的闩锁凸缘部分，并且同时使用成对的一对压制成形表面和坯料的一对接合端部的压制成形外部部分将其预压成预定形状。

公开(公告)号：US6103394A

公开(公告)日：2000-08-15

申请号：US029716

申请日：1998-03-03

申请人： Kaneharu Okuda ,  Yoshikazu Kawabata ,  Kei Sakata ,  Takaaki Hira ,  Atsushi Ogino ,  Takashi Obara

发明人： Kaneharu Okuda ,  Yoshikazu Kawabata ,  Kei Sakata ,  Takaaki Hira ,  Atsushi Ogino ,  Takashi Obara

IPC分类号： B21B3/00 ,  B21C1/00 ,  B21D22/20 ,  C21D8/04 ,  C21D9/00 ,  C21D9/48 ,  C22C38/00 ,  C22C38/60

CPC分类号： B21B3/00 ,  B21C1/00 ,  B21D22/20 ,  C21D8/04 ,  C21D9/00 ,  C21D9/48 ,  C22C38/00 ,  C22C38/60 ,  Y10T428/12229

摘要： A thin steel sheet having excellent rectangular drawability is produced by completing roughing rolling of steel containing C: 0.02 wt % or less, Si: 0.5 wt % or less, Mn: 1.0 wt % or less, P: 0.15 wt % or less, S: 0.02 wt % or less, Al: 0.01 to 0.10 wt %, N: 0.008 wt % or less, at least one of Ti: 0.001 to 0.20 wt % and Nb: 0.001 to 0.15 wt %, the balance comprising Fe, and inevitable impurities, in the temperature region of 950.degree. C. to the Ar.sub.3 transformation temperature: performing finish rolling at a reduction of over 70% under lubrication in the temperature region of the Ar.sub.3 transformation temperature to 500.degree. C.; pickling the sheet; annealing the resultant hot rolled sheet under conditions which satisfy the equations (1) and (2) below:(T+273) (20+log t).gtoreq.2.50.times.10.sup.4 (1)745.ltoreq.T.ltoreq.920 (2)wherein T: hot rolled sheet annealing temperature (.degree. C.)t: hot rolled sheet annealing time (sec); cold rolling at a reduction of 50 to 95%; and then recrystallization annealing; to satisfy the following relations:(r.sub.L +r.sub.C)/2-r.sub.D .gtoreq.0.67, and(r.sub.L +2r.sub.D +r.sub.C)/4.gtoreq.2.7,wherein r.sub.L : Lankford value in the rolling direction, r.sub.D : Lankford value in the direction at 45.degree. with the rolling direction, and r.sub.C : Lankford value in the direction perpendicular to the rolling direction.

摘要翻译： PCT No.PCT / JP97 / 04336 Sec。 371日期1998年3月3日 102（e）1998年3月3日PCT 1997年11月27日PCT PCT。 公开号WO98 / 28457 日期：1998年7月2日通过对C：0.02重量％以下，Si：0.5重量％以下，Mn：1.0重量％以下，P：0.15重量％以下的钢进行粗轧，制造具有优异的矩形拉伸性的薄钢板 ％以下，S：0.02重量％以下，Al：0.01〜0.10重量％，N：0.008重量％以下，Ti：0.001〜0.20重量％，Nb：0.001〜0.15重量％中的至少一种，余量 包括Fe和不可避免的杂质，在950℃至Ar3相变温度的范围内：在Ar3转变温度至500℃的温度区域内，在润滑下进行精制轧制70％以上。 酸洗板 （T + 273）（20 + log t）> / = 2.50×104（1）745 / = 0.67，（rL + 2rD + rC）/ 4> / = 2.7，其中rL：轧制方向的兰克福德值，rD：兰克福德值 方向为45°，轧制方向，rC：兰克福德值在垂直于轧制方向的方向。

公开(公告)号：US20120187212A1

公开(公告)日：2012-07-26

申请号：US13392258

申请日：2010-08-27

申请人： Takaaki Hira

发明人： Takaaki Hira

IPC分类号： F02M51/06 ,  H01L41/047

CPC分类号： F02M51/0603 ,  H01L41/0471 ,  H01L41/0838 ,  H01L41/297

摘要： A multi-layer piezoelectric element includes a stacked body in which piezoelectric layers and internal electrode layers are alternately laminated in such a way that an end face of each of the internal electrode layers is partly exposed at a side face of the stacked body; and a pair of external electrodes configured to bond to side faces of the stacked body so as to make connection with the internal electrode layers, wherein a multiplicity of voids exists in the internal electrode layers, and the end face of each of the internal electrode layers partly exposed at the side face of the stacked body is substantially free from the voids.

摘要翻译： 层叠型压电元件包括​​堆叠体，其中压电层和内部电极层交替层叠，使得每个内部电极层的端面部分地在层叠体的侧面露出; 以及一对外部电极，其被配置为结合到层叠体的侧面以与内部电极层连接，其中在内部电极层中存在多个空隙，并且每个内部电极层的端面 部分暴露在层叠体的侧面基本上没有空隙。