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1. 发明授权

US08075711B2 Hot-rolled high strength steel sheet having excellent ductility, and tensile fatigue properties and method for producing the same 有权
标题翻译：延展性优良的热轧高强度钢板，拉伸疲劳特性及其制造方法
公开(公告)号：US08075711B2
公开(公告)日：2011-12-13
申请号：US12226039
申请日：2006-12-27
申请人： Koichi Nakagawa , Reiko Sugihara , Tetsuo Shimizu , Shusaku Takagi
发明人： Koichi Nakagawa , Reiko Sugihara , Tetsuo Shimizu , Shusaku Takagi
IPC分类号： C21D8/02 , C21D9/46 , C22C38/14
CPC分类号： C21D9/46 , C21D8/0205 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A hot-rolled high strength steel sheet in which, without using expensive Mo, and by effectively using Ti, which is an expensive element, the amount of precipitation hardening of which is large, both ductility and stretch-flangeability are improved at a tensile strength of 780 MPa or higher, and desirable tensile fatigue properties are exhibited. The hot-rolled high strength steel sheet has a composition including, in percent by mass, C: 0.06% to 0.15%, Si: 1.2% or less, Mn: 0.5% to 1.6%, P: 0.04% or less, S: 0.005% or less, Al: 0.05% or less, and Ti: 0.03% to 0.20%, the balance being Fe and incidental impurities, wherein the steel sheet has a structure in which the volume fraction of ferrite is 50% to 90%, the balance is substantially bainite, the total volume fraction of ferrite and bainite is 95% or more, precipitates containing Ti are precipitated in the ferrite, and the precipitates have an average diameter of 20 nm or less; and 80% or more of the Ti content in the steel is precipitated.
摘要翻译：一种热轧高强度钢板，其中不使用昂贵的Mo，并且通过有效地使用作为昂贵元素的Ti，沉淀硬化量大，延展性和拉伸凸缘性都提高了拉伸强度的拉伸疲劳特性为780MPa以上。该热轧高强度钢板具有以质量％计含有C：0.06〜0.15％，Si：1.2％以下，Mn：0.5〜1.6％，P：0.04％以下的组合物，S： 0.005％以下，Al：0.05％以下，Ti：0.03％〜0.20％，余量为Fe和附带杂质，其中，铁素体的体积分率为50〜90％的结构，余量基本上是贝氏体，铁素体和贝氏体的总体积分率为95％以上，含有Ti的析出物析出在铁素体中，析出物的平均直径为20nm以下，钢中的Ti含量为80％以上。

2. 发明申请

US20090050244A1 Hot-Rolled High Strength Steel Sheet Having Excellent Ductility, Stretch-Flangeability, and Tensile Fatigue Properties and Method for Producing the Same 有权
标题翻译：热轧高强度钢板具有优异的延展性，拉伸 - 可弯曲性和拉伸疲劳性能及其制造方法
公开(公告)号：US20090050244A1
公开(公告)日：2009-02-26
申请号：US12226039
申请日：2006-12-27
申请人： Koichi Nakagawa , Reiko Sugihara , Tetsuo Shimizu , Shusaku Takagi
发明人： Koichi Nakagawa , Reiko Sugihara , Tetsuo Shimizu , Shusaku Takagi
IPC分类号： C21D6/02 , C22C38/02
CPC分类号： C21D9/46 , C21D8/0205 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： The present invention provides a hot-rolled high strength steel sheet in which, without using expensive Mo, by effectively using Ti which is an inexpensive element and the amount of precipitation hardening of which is large, both ductility and stretch-flangeability are improved at a tensile strength of 780 MPa or higher, and excellent tensile fatigue properties are exhibited; and a method for producing the hot-rolled high strength steel sheet. A hot-rolled high strength steel sheet having a composition including, in percent by mass, C: 0.06% to 0.15%, Si: 1.2% or less, Mn: 0.5% to 1.6%, P: 0.04% or less, S: 0.005% or less, Al: 0.05% or less, and Ti: 0.03% to 0.20%, the balance being Fe and incidental impurities, wherein the steel sheet has a structure in which the volume fraction of ferrite is 50% to 90%, the balance is substantially bainite, the total volume fraction of ferrite and bainite is 95% or more, precipitates containing Ti are precipitated in the ferrite, and the precipitates have an average diameter of 20 nm or less; and 80% or more of the Ti content in the steel is precipitated.
摘要翻译：本发明提供一种热成型高强度钢板，其中，通过有效地使用廉价元素的Ti，析出硬化量大，不使用昂贵的Mo，可以提高延展性和拉伸凸缘性，拉伸强度为780MPa以上，拉伸疲劳特性优异; 以及制造该热轧高强度钢板的方法。 1.一种热塑性高强度钢板，其组成为：C：0.06〜0.15％，Si：1.2％以下，Mn：0.5〜1.6％，P：0.04％以下，S： 0.005％以下，Al：0.05％以下，Ti：0.03％〜0.20％，余量为Fe和附带杂质，其中，铁素体的体积分率为50〜90％的结构，余量基本上是贝氏体，铁素体和贝氏体的总体积分率为95％以上，含有Ti的析出物析出在铁素体中，析出物的平均直径为20nm以下，钢中的Ti含量为80％以上。

3. 发明授权

US07527700B2 High strength hot rolled steel sheet and method for manufacturing the same 有权
标题翻译：高强度热轧钢板及其制造方法
公开(公告)号：US07527700B2
公开(公告)日：2009-05-05
申请号：US10543489
申请日：2004-04-21
申请人： Nobusuke Kariya , Shusaku Takagi , Tetsuo Shimizu , Tetsuya Mega , Kei Sakata , Hiroshi Takahashi
发明人： Nobusuke Kariya , Shusaku Takagi , Tetsuo Shimizu , Tetsuya Mega , Kei Sakata , Hiroshi Takahashi
IPC分类号： C22C38/00
CPC分类号： C22C38/02 , C21D8/0226 , C21D2211/002 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14
摘要： The present invention relates to a high strength hot rolled steel sheet consisting of 0.04 to 0.15% C, 1.5% or less Si, 0.5 to 1.6% Mn, 0.04% or less P, 0.005% or less S, 0.04% or less Al, 0.03 to 0.15% Ti, 0.03 to 0.5% Mo, by mass, and balance of Fe and inevitable impurities, and having a microstructure consisting of ferrite containing precipitates, second phase of bainite and/or martensite, and other phase, wherein the percentage of the ferrite containing precipitates is 40 to 95%, and the percentage of the other phase is 5% or less. For example, the high strength hot rolled steel sheet having a thickness of 1.4 mm shows a tensile strength of 780 MPa or higher, an elongation of 22% or higher elongation, and a hole expansion ratio of 60% or higher, thus the steel sheet is suitable for reinforcing members automobile cabin and crash worthiness members of automobile.
摘要翻译：本发明涉及由0.04〜0.15％C，1.5％以下的Si，0.5〜1.6％的Mn，0.04％以下的P，0.005％以下的S，0.04％以下的Al， 0.03〜0.15％的Ti，0.03〜0.5％的Mo，余量的Fe和不可避免的杂质，并且具有由含有析出物的铁素体，贝氏体和/或马氏体的第二相以及其他相组成的组织，其中，含铁素体的析出物为40〜95％，另一相的比例为5％以下。例如，厚度为1.4mm的高强度热轧钢板的拉伸强度为780MPa以上，延伸率为22％以上，扩孔率为60％以上，因此钢板适用于加固汽车客舱和汽车碰撞成员。

4. 发明申请

US20060231176A1 High tensile strength cold-rolled steel sheet and method for production thereof 审中-公开
标题翻译：高抗拉强度冷轧钢板及其制造方法
公开(公告)号：US20060231176A1
公开(公告)日：2006-10-19
申请号：US10553898
申请日：2004-08-18
申请人： Shusaku Takagi , Tetsuo Shimizu , Naoki Nishiyama
发明人： Shusaku Takagi , Tetsuo Shimizu , Naoki Nishiyama
IPC分类号： C21D8/02
CPC分类号： C22C38/04 , C21D8/0236 , C21D8/0436 , C21D8/0473 , C21D2211/005 , C21D2211/008 , C22C38/02
摘要： The high tensile cold-rolled steel sheet consists essentially of 0.04 to 0.13% C, 0.3 to 1.2% Si, 1.0 to 3.5% Mn, 0.04% or less P, 0.01% or less S, 0.07% or less Al, by mass, and balance of Fe and inevitable impurities, has a microstructure containing 50% or larger area percentage of ferrite and 10% or larger area percentage of martensite, has 0.85 to 1.5 of ratio of intervals of the martensite in the rolling direction to those in the sheet thickness direction, and has 8 GPa or larger nano strength of the martensite. The high tensile cold-rolled steel sheet has a good strength-elongation balance, and shows excellent crashworthiness at about 10 s−1 of strain rate. Therefore, the high tensile cold-rolled steel sheet is suitable for reinforcing members for pillar and dashboard of automobile.
摘要翻译：高张力冷轧钢板基本上由0.04〜0.13％的C，0.3〜1.2％的Si，1.0〜3.5％的Mn，0.04％以下的P，0.01％以下的S，0.07％以下的Al， Fe和不可避免的杂质的平衡，具有含有50％以上的铁素体面积率和10％以上的马氏体面积百分率的微结构，在轧制方向上的马氏体间隔的比例为0.85〜1.5 厚度方向，并具有8GPa以上的纳米强度的马氏体。高强度冷轧钢板具有良好的强度 - 伸长率平衡，并且在应变速率的约10s -1下表现出优异的耐冲击性。因此，高强度冷轧钢板适用于汽车的支柱和仪表板的加强构件。

5. 发明授权

US09452792B2 Vehicle collision energy absorbing member excellent in energy absorbing performance and manufacturing method therefor 有权
标题翻译：能量吸收性能优异的车辆碰撞能量吸收构件及其制造方法
公开(公告)号：US09452792B2
公开(公告)日：2016-09-27
申请号：US14116847
申请日：2012-04-23
申请人： Shusaku Takagi , Kaneharu Okuda , Yoshikiyo Tamai , Takeshi Fujita , Yoshitaka Okitsu , Tadashi Naito , Naoki Takaki , Tomoaki Sugiura
发明人： Shusaku Takagi , Kaneharu Okuda , Yoshikiyo Tamai , Takeshi Fujita , Yoshitaka Okitsu , Tadashi Naito , Naoki Takaki , Tomoaki Sugiura
IPC分类号： C22C38/04 , C22C38/12 , C22C38/06 , C21D7/00 , B62D29/00 , C21D9/00 , C22C38/00 , C22C38/02 , B21D53/88 , C21D9/46
CPC分类号： B62D29/007 , B21D53/88 , C21D9/0068 , C21D9/46 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , Y10T29/49622
摘要： A vehicle collision energy absorbing member is excellent in collision energy absorbing performance in the axial direction upon collision. The vehicle collision energy absorbing member is formed of a high strength thin steel sheet having TS of at least 980 MPa and having an n-value and a limit bending radius Rc satisfying the following Formula: Rc/t≦1.31×ln(n)+5.21.
摘要翻译：车辆碰撞能量吸收构件在碰撞时轴向碰撞能量吸收性能优异。车辆碰撞能量吸收部件由具有至少980MPa的TS且具有满足下式的n值和极限弯曲半径Rc的高强度薄钢板形成：Rc /t≤1.31×ln（n）+ 5.21。

6. 发明申请

US20130071687A1 HIGH STRENGTH GALVANIZED STEEL SHEET HAVING EXCELLENT BENDABILITY AND WELDABILITY, AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：具有优异的弯曲性和焊接性的高强度钢化片及其制造方法
公开(公告)号：US20130071687A1
公开(公告)日：2013-03-21
申请号：US13698301
申请日：2011-05-30
申请人： Shusaku Takagi , Kohei Hasegawa
发明人： Shusaku Takagi , Kohei Hasegawa
IPC分类号： B32B15/18 , B32B15/04 , C21D8/00
CPC分类号： C23C2/02 , B32B15/013 , B32B15/043 , B32B15/18 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/005 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D8/0278 , C21D8/0473 , C21D9/46 , C21D2211/002 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/06 , C23C2/26 , C23C2/28 , C23C2/40 , Y10T428/12799
摘要： A high strength galvanized steel sheet having excellent bendability and weldability, comprising by mass %: C: equal to or more than 0.05% and less than 0.12%; P: 0.001 to 0.040%; and S: equal to or less than 0.0050%, wherein a steel sheet surface layer, constituting a portion of the steel sheet up to a depth of 10 μm measured from each surface of the steel sheet, has a structure containing more than 70% of ferrite phase by a volume fraction, a steel sheet inner layer portion, on an inner side than the depth of 10 μm measured from each surface, has a structure containing 20 to 70% by a volume fraction of ferrite phase with an average crystal grain size equal to or smaller than 5 μm, the steel sheet has a tensile strength equal to or larger than 980 MPa, and the steel sheet has a galvanized layer on a surface thereof.
摘要翻译：具有优异的弯曲性和焊接性的高强度镀锌钢板，其质量％：C：等于或大于0.05％且小于0.12％; P：0.001〜0.040％ S：0.0050％以下的钢板表面层，其中，钢板表面层从钢板的各表面测量到厚度为10μm的钢板的一部分，具有含有70％以上的钢板表面层铁素体相的体积分数，钢板内层部分，在内表面上的每个表面测量的深度为10μm，具有通过体积分数为20〜70％的铁素体相的平均结晶粒径等于或小于5μm，钢板的拉伸强度等于或大于980MPa，钢板表面具有镀锌层。

7. 发明授权

US07919194B2 High strength steel sheet having superior ductility 有权
标题翻译：高强度钢板具有优良的延展性
公开(公告)号：US07919194B2
公开(公告)日：2011-04-05
申请号：US12372836
申请日：2009-02-18
申请人： Kenji Kawamura , Taro Kizu , Shusaku Takagi , Kohei Hasegawa , Hiroshi Matsuda , Akio Kobayashi , Yasunobu Nagataki , Yasushi Tanaka , Thomas Heller , Brigitte Hammer , Jian Bian , Günter Stich , Rolf Bode , Brigitte Bode, legal representative
发明人： Kenji Kawamura , Taro Kizu , Shusaku Takagi , Kohei Hasegawa , Hiroshi Matsuda , Akio Kobayashi , Yasunobu Nagataki , Yasushi Tanaka , Thomas Heller , Brigitte Hammer , Jian Bian , Günter Stich , Rolf Bode
IPC分类号： B32B15/04 , B32B15/18 , B32B15/20 , C22C38/18
CPC分类号： C21D9/48 , C21D8/0426 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/28 , Y10T428/12799 , Y10T428/12972
摘要： A high strength steel sheet and a method for manufacturing the same has superior phosphatability properties and hot-dip galvannealed properties besides a tensile strength of 950 MPa or more and a high ductility, and also having a small variation in mechanical properties with the change in annealing conditions.
摘要翻译：高强度钢板及其制造方法除950MPa以上的拉伸强度和高延展性外，还具有优异的磷酸化性和热浸镀锌合金的特性，并且随着退火的变化也具有小的机械性能变化条件。

8. 发明申请

US20120040203A1 HIGH STRENGTH GALVANIZED STEEL SHEET HAVING EXCELLENT FORMABILITY, WELDABILITY, AND FATIGUE PROPERTIES AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：具有优异的可塑性，焊接性和疲劳特性的高强度钢化片及其制造方法
公开(公告)号：US20120040203A1
公开(公告)日：2012-02-16
申请号：US13264006
申请日：2010-04-27
申请人： Shusaku Takagi , Kohei Hasegawa
发明人： Shusaku Takagi , Kohei Hasegawa
IPC分类号： B21C1/00 , B21B45/04
CPC分类号： C23C2/02 , B32B15/013 , C21D8/0405 , C21D8/0426 , C21D8/0463 , C21D8/0473 , C21D9/46 , C21D9/48 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/06 , C23C2/28 , Y10T428/12229 , Y10T428/12799
摘要： A high strength galvanized steel sheet including all in mass %, C: 0.05% to
摘要翻译： 1.一种高强度镀锌钢板，其全部以质量％计，C：0.05％〜<0.12％，Si：0.35％〜<0.80％，Mn：2.0〜3.5％，P：0.001〜0.040％，S：0.0001〜0.0050％，Al：0.005〜0.1％，N：0.0001〜0.0060％，Cr：0.01〜0.5％，Ti：0.010〜0.080％，Nb：0.010〜0.080％，B：0.0001〜0.0030％ Mo：0.01〜0.15％，Ca：0.0001〜0.0050％，REM：0.0001〜0.1％，Sb：0.0001〜0.1％，Fe和不可避免的杂质作为平衡，具有含有体积分数的铁素体相的组织 20〜70％的范围，平均粒径等于或小于5μm，并且在其表面上具有涂层重量（每侧）为20至150g / m 2的镀锌层。

9. 发明授权

US06523416B2 Method for setting shape and working stress, and working environment of steel member 失效
公开(公告)号：US06523416B2
公开(公告)日：2003-02-25
申请号：US09940669
申请日：2001-08-29
申请人： Shusaku Takagi , Kaneaki Tsuzaki , Tadanobu Inoue
发明人： Shusaku Takagi , Kaneaki Tsuzaki , Tadanobu Inoue
IPC分类号： G01N300
CPC分类号： C22C38/22 , C22C38/04 , G01N33/20
摘要： A delayed fracture is effectively prevented by appropriately setting a shape and working stress, and working environment of a high strength member having more than 1,000 MPa of tensile strength. For this end, the relationship between a maximum value of diffusible hydrogen contents of unfailed specimens (Hc) and Weibull stress are found and the content of diffusible hydrogen entered into steel from the environment due to corrosion during the use of the steel member (He) is also found. Then, Weibull stress in the Hc that is equal to the He is found, thus determining the shape and working stress of the steel member so as to provide stress below the Weibull stress.

10. 发明授权

US6147439A Piezoelectric substrate supporting structure for piezoelectric transformer and piezoelectric transformer provided therewith 失效
标题翻译：压电变压器和压电变压器的压电衬底支撑结构
公开(公告)号：US6147439A
公开(公告)日：2000-11-14
申请号：US102673
申请日：1998-06-23
申请人： Shusaku Takagi , Masamitsu Tanaka , Sigeru Bando , Tadao Sunahara , Katsuo Kono , Mitsunobu Yoshida , Yasushi Iwata
发明人： Shusaku Takagi , Masamitsu Tanaka , Sigeru Bando , Tadao Sunahara , Katsuo Kono , Mitsunobu Yoshida , Yasushi Iwata
IPC分类号： H01L41/053 , H01L41/107 , H01L41/047
CPC分类号： H01L41/107 , H01L41/053
摘要： A piezoelectric substrate supporting structure for piezoelectric transformer is provided which, in the supporting and fixing of a piezoelectric substrate on a base plate or in an outer trim case, does not inhibit the vibration of the piezoelectric substrate, exhibits high impact resistance and enables stable supporting, is free from performance deterioration and enables simultaneously and easily performing an electrode takeoff from the piezoelectric substrate. Further, a piezoelectric transformer including the above piezoelectric substrate supporting structure is provided.The above piezoelectric substrate supporting structure for piezoelectric transformer comprises a piezoelectric substrate 30 as a constituent of piezoelectric transformer 20, which is fitted with electrodes, and conductive supporting members 10A to 10C interposed between portions of the piezoelectric substrate electrodes 34A to 34D and portions of conductive parts 50, 60 disposed on a mounted member 22, 24 for securing the piezoelectric substrate 30, wherein the conductive supporting members are composed of an elastic nonmetal material and a conductive material. Each of the conductive supporting members has its internal part or surface provided with cavities.
摘要翻译：提供了一种用于压电变压器的压电基片支撑结构，其在基板或外部装饰壳体上的压电基板的支撑和固定中不会抑制压电基板的振动，表现出高的抗冲击性，并且能够稳定地支撑，没有性能劣化，并且能够同时且容易地从压电基板执行电极起飞。此外，提供了包括上述压电基板支撑结构的压电变压器。上述压电变压器用压电基板支撑结构体包括压电基板30作为压电变压器20的组成部件，其配置有电极，并且导电支撑部件10A至10C插入在压电基板电极34A至34D的部分之间以及部分导电设置在用于固定压电基板30的安装构件22,24上的部件50,60，其中导电支撑构件由弹性非金属材料和导电材料构成。每个导电支撑构件具有设置有空腔的内部部件或表面。

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