公开(公告)号：US06688997B2

公开(公告)日：2004-02-10

申请号：US10188074

申请日：2002-07-03

申请人： Takeshi Ashino ,  Kunio Niwa ,  Hiroyuki Takeuchi

发明人： Takeshi Ashino ,  Kunio Niwa ,  Hiroyuki Takeuchi

IPC分类号： A63B4900

CPC分类号： A63B49/03 ,  A63B60/54 ,  A63B2209/02

摘要： A racket frame (1) has a pipe-shaped racket-frame body (2) made of a fiber reinforced resin and composed of a head (3), a throat part (4), a shaft part (5), and a grip part (6) sequentially arranged and a yoke (10) connected to the racket-frame body (2). In this construction, supposing that the head (3) is a clock face and that the top position of the head (3) is 12 o'clock, a yoke rigidity value at a central position P1, vertical to a ball-hitting face (F), of the yoke (10) in a longitudinal direction thereof is in a range of 10% to 70% of a face rigidity value which is an average of a rigidity value at a 12 o'clock position (P2) vertical to the ball-hitting face (F) and a rigidity value at a three o'clock position (P3) vertical to the ball-hitting face (F).

摘要翻译： 球拍框架（1）具有由纤维增强树脂制成的管状球拍框架体（2），由头部（3），喉部（4），轴部（5）和手柄 依次布置的部分（6）和连接到球拍框体（2）的轭（10）。 在这种结构中，假设头部（3）是钟面并且头部（3）的顶部位置是12点钟，则在中心位置P1处的垂直于击球面的轭刚度值 磁轭（10）的长度方向的F（F）的面积刚度值的10％〜70％的范围是垂直于该磁轭的12点钟位置（P2）的刚度值的平均值 击球面（F）和垂直于击球面（F）的三点钟位置（P3）处的刚度值。

公开(公告)号：US07074142B2

公开(公告)日：2006-07-11

申请号：US10866871

申请日：2004-06-15

申请人： Hiroyuki Takeuchi ,  Kunio Niwa ,  Takeshi Ashino

发明人： Hiroyuki Takeuchi ,  Kunio Niwa ,  Takeshi Ashino

IPC分类号： A63B49/02

CPC分类号： A63B49/10 ,  A63B49/028 ,  A63B60/48 ,  A63B2060/002

摘要： A tennis racket frame (10), including a sleeve composed of a fiber reinforced resin, having a weight not less than 180 g nor more than 270 g, when strings are not mounted in a ball-hitting face thereof surrounded with a head part thereof. Supposing that the strings are not mounted in the ball-hitting face, a secondary natural frequency (F1) of the racket frame in an in-plane direction thereof is set to not less than 200 Hz nor more than 320 Hz, a secondary natural frequency (F2) thereof in an out-of-plane direction thereof is set to not less than 480 Hz nor more than 650 Hz, and F1/F2 is set to not less than 0.3 nor more than 0.6.

摘要翻译： 一种网球拍框架（10），其包括由纤维增强树脂构成的套筒，其重量不小于180g，不大于270g，当琴弦未安装在其头部的围绕其的击球面时 。 假设弦没有安装在击球面上，球拍框架在其面内方向上的次级固有频率（F1）设定为不小于200Hz，不大于320Hz，二次自然频率 其面外方向的频率（F 2）设定为480Hz以上650Hz以下，F 1 / F 2设定为0.3以上0.6以下。

公开(公告)号：US20050043124A1

公开(公告)日：2005-02-24

申请号：US10866871

申请日：2004-06-15

申请人： Hiroyuki Takeuchi ,  Kunio Niwa ,  Takeshi Ashino

发明人： Hiroyuki Takeuchi ,  Kunio Niwa ,  Takeshi Ashino

IPC分类号： A63B49/10

CPC分类号： A63B49/10 ,  A63B49/028 ,  A63B60/48 ,  A63B2060/002

摘要： A tennis racket frame (10), including a sleeve composed of a fiber reinforced resin, having a weight not less than 180 g nor more than 270 g, when strings are not mounted in a ball-hitting face thereof surrounded with a head part thereof. Supposing that the strings are not mounted in the ball-hitting face, a secondary natural frequency (F1) of the racket frame in an in-plane direction thereof is set to not less than 200 Hz nor more than 320 Hz, a secondary natural frequency (F2) thereof in an out-of-plane direction thereof is set to not less than 480 Hz nor more than 650 Hz, and F1/F2 is set to not less than 0.3 nor more than 0.6.

摘要翻译： 一种网球拍框架（10），其包括由纤维增强树脂构成的套筒，其重量不小于180g，不大于270g，当琴弦未安装在其头部的围绕其的击球面时 。 假设弦没有安装在击球面上，球拍框架的面内方向的二次固有频率（F1）被设定为不小于200Hz，也不大于320Hz，二次固有频率 （F2）设定为不小于480Hz且不大于650Hz，F1 / F2设定为不小于0.3且不大于0.6。

公开(公告)号：US06663514B2

公开(公告)日：2003-12-16

申请号：US10180526

申请日：2002-06-27

申请人： Kunio Niwa ,  Hiroyuki Takeuchi ,  Takeshi Ashino

发明人： Kunio Niwa ,  Hiroyuki Takeuchi ,  Takeshi Ashino

IPC分类号： A63B4900

CPC分类号： A63B60/54 ,  A63B49/02 ,  A63B49/03 ,  A63B60/42 ,  A63B2049/0202 ,  A63B2049/0212 ,  A63B2209/02

摘要： A frame body (2) is formed separately from a yoke (10) connecting right and left parts of the frame body (2) to each other. The yoke (10) and the frame body (2) are connected to each other by a mechanical connection means, with both ends of the yoke (10) in contact with the right and left parts of the frame body (2) in an area of not less than 10 cm2 (1.6 in2). A shear force generated when the racket frame (1) deforms is collectively applied to a connection surface of the frame body (2) and that of the yoke (10) to increase a vibration-damping performance of the racket frame (1).

摘要翻译： 框架体（2）与将框架体（2）的右部和左部彼此连接的轭架（10）分开形成。 轭架（10）和框架体（2）通过机械连接装置彼此连接，轭架（10）的两端与框体（2）的左右部分接触在一个区域 不小于10cm 2（1.6 in <2>）。 当球拍框架（1）变形时产生的剪切力被共同地施加到框架体（2）的连接表面和轭架（10）的连接表面上，以增加球拍框架（1）的减振性能。

公开(公告)号：US07217203B2

公开(公告)日：2007-05-15

申请号：US10967296

申请日：2004-10-19

申请人： Hiroyuki Takeuchi ,  Takeshi Ashino

发明人： Hiroyuki Takeuchi ,  Takeshi Ashino

IPC分类号： A63B49/02

CPC分类号： A63B51/10 ,  A63B49/022

摘要： A tennis racket having a racket frame defining a ball-hitting face, wherein if the upper part of the ball-hitting face is set as a 0-degree position, a string protection member is mounted on at least one portion of a head part of the racket frame in a range from a clockwise 45-degree position to a clockwise 135-degree position and in a range from a clockwise 225-degree position to a clockwise 315-degree position by interposing a viscoelastic member between the string protection member and the racket frame. The moment (Is) of inertia of the tennis racket in a swing direction is set to not less than 450,000 g/cm2 nor more than 490,000 g/cm2, when strings are not tensionally mounted thereon. The moment (Ic) of inertia of the tennis racket in a center direction is set to not less than 15,000 g/cm2 nor more than 19,000 g/cm2, when the strings are not tensionally mounted thereon.

摘要翻译： 一种具有限定击球面的球拍框架的网球拍，其中，如果将击球面的上部设定为0度位置，则将弦保护构件安装在头部的头部的至少一部分上 球拍框架从顺时针45度位置到顺时针135度位置的范围内，并且在从顺时针225度位置到顺时针方向315度位置的范围内，通过在弦保护构件和弦杆保护构件之间插入粘弹构件 球拍架。 网球拍在摆动方向的惯性力矩（Is）设定为不小于45万g / cm 2以上，不大于490,000g / cm 2以下，当 弦没有紧固地安装在其上。 网球拍在中心方向的惯性矩（Ic）设定为15000g / cm 2以上19000g / cm 2以下，当 弦不会紧紧地安装在其上。

公开(公告)号：US20050192128A1

公开(公告)日：2005-09-01

申请号：US10967296

申请日：2004-10-19

申请人： Hiroyuki Takeuchi ,  Takeshi Ashino

发明人： Hiroyuki Takeuchi ,  Takeshi Ashino

IPC分类号： A63B49/04 ,  A63B49/00 ,  A63B49/14 ,  A63B51/00 ,  A63B51/10

CPC分类号： A63B51/10 ,  A63B49/022

摘要： Supposing that an upper part of the ball-hitting face (F) is set as a 0-degree position, a string protection member (21) is mounted on at least one portion of a head part of the racket frame in a range from a clockwise 45-degree position to a clockwise 135-degree position and in a range from a clockwise 225-degree position to a clockwise 315-degree position by interposing a viscoelastic member between the string protection member and the racket frame. The moment (Is) of inertia of the tennis racket in a swing direction is set to not less than 450,000 g/cm2 nor more than 490,000 g/cm2, when strings are not tensionally mounted thereon. The moment (Ic) of inertia of the tennis racket in a center direction is set to not less than 15,000 g/cm2 nor more than 19,000 g/cm2, when the strings are not tensionally mounted thereon.

摘要翻译： 假设将击球面（F）的上部设定为0度位置，则在球拍框架的头部的至少一部分上安装绳保护构件（21）的范围从 顺时针方向45度位置，顺时针方向135度位置，并在顺时针方向的225度位置到顺时针方向的315度位置，方法是将一个粘弹组件插入到球杆保护构件和球拍框架之间。 网球拍在摆动方向的惯性力矩（Is）设定为不小于45万g / cm 2以上，不大于490,000g / cm 2以下，当 弦没有紧固地安装在其上。 网球拍在中心方向的惯性矩（Ic）设定为15000g / cm 2以上19000g / cm 2以下，当 弦不会紧紧地安装在其上。

公开(公告)号：US09684044B2

公开(公告)日：2017-06-20

申请号：US14349424

申请日：2012-10-17

申请人： Hideta Habara ,  Yoshihisa Soutome ,  Hiroyuki Takeuchi ,  Hisaaki Ochi

发明人： Hideta Habara ,  Yoshihisa Soutome ,  Hiroyuki Takeuchi ,  Hisaaki Ochi

IPC分类号： G01R33/34 ,  G01R33/3415 ,  G01R33/345 ,  G01R33/36

CPC分类号： G01R33/34092 ,  G01R33/3415 ,  G01R33/3453 ,  G01R33/36 ,  G01R33/365

摘要： In order to provide a technique which can suppress coupling to homogenize the spatial distribution of an RF magnetic field and can improve penetration of the RF magnetic field into the subject, pad-like electric field conductors having a predetermined area are provided outside both ends of a rung conductor as a part of a configuration which forms a loop-like circuit and is driven as an antenna. An antenna device includes a sheet-like conductor, a rung conductor which is arranged at a predetermined distance from the sheet-like conductor, two electric field conductors which are arranged in both end portions of the rung conductor at a predetermined distance from the sheet-like conductor, and connection terminals which are transmission and reception terminals provided in the rung conductor and the sheet-like conductor. The rung conductor and the sheet-like conductor configure a loop circuit which resonates at a preset frequency.

公开(公告)号：US09453897B2

公开(公告)日：2016-09-27

申请号：US13817680

申请日：2011-08-18

申请人： Shouichi Miyawaki ,  Hiroyuki Takeuchi

发明人： Shouichi Miyawaki ,  Hiroyuki Takeuchi

IPC分类号： G01R33/58 ,  G01R33/389 ,  G01R33/565 ,  A61B5/055

CPC分类号： G01R33/58 ,  A61B5/055 ,  G01R33/389 ,  G01R33/56509 ,  G01R33/56518

摘要： Regardless of the measurement conditions, the degradation of the image quality due to a vibrational error magnetic field, which is generated by the vibration of the mechanical structure of an MRI apparatus, is reduced. In order to do so, error magnetic field image data indicating an error magnetic field distribution is acquired on the basis of an echo signal measured using a pulse sequence having a test gradient magnetic field, a parameter value of a damped vibration function showing a vibrational error magnetic field is calculated using the error magnetic field image data, and a correction magnetic field is calculated on the basis of the calculated parameter value of the damped vibration function showing the vibrational error magnetic field.

摘要翻译： 不管测量条件如何，减少了由MRI装置的机械结构的振动产生的由振动误差磁场引起的图像质量的劣化。 为了这样做，基于使用具有测试梯度磁场的脉冲序列测量的回波信号，获得表示误差磁场分布的误差磁场图像数据，显示振动误差的阻尼振动函数的参数值 使用误差磁场图像数据计算磁场，并且基于计算出的表示振动误差磁场的阻尼振动函数的参数值来计算校正磁场。

公开(公告)号：US20130335088A1

公开(公告)日：2013-12-19

申请号：US13979542

申请日：2012-01-13

申请人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Akira Kurome

发明人： Masanao Terada ,  Mitsushi Abe ,  Yukinobu Imamura ,  Hiroyuki Takeuchi ,  Akira Kurome

IPC分类号： G01R33/385

CPC分类号： G01R33/385 ,  G01R33/4215

摘要： A gradient coil device includes a major axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a major axis direction of the ellipse at a magnetic field space; and a minor axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a minor axis direction of the ellipse at the magnetic field space. A length of the minor axis field coil in the center axis direction is shorter than a length of the major axis gradient coil in the center axis direction. A maximum value of a residual magnetic field generated by the minor axis gradient coil at a space outside the magnetic field space is equal to or smaller than a maximum value of a residual magnetic field generated by the major axis gradient coil at a space outside the magnetic field space.

摘要翻译： 梯度线圈装置包括长轴梯度线圈，在截面上具有椭圆形状，在磁场空间产生沿椭圆的长轴方向倾斜的梯度磁场; 以及短轴倾斜线圈，在截面中具有椭圆形状，在磁场空间产生在椭圆的短轴方向上倾斜的倾斜磁场。 短轴励磁线圈的中心轴方向的长度比中心轴方向的长轴梯度线圈的长度短。 在磁场空间外的空间处由短轴梯度线圈产生的剩余磁场的最大值等于或小于在磁性空间外的空间处由长轴梯度线圈产生的残余磁场的最大值 场地空间。

公开(公告)号：US08602908B2

公开(公告)日：2013-12-10

申请号：US12762646

申请日：2010-04-19

申请人： Hiroyuki Takeuchi

发明人： Hiroyuki Takeuchi

IPC分类号： A63B53/10

CPC分类号： A63B53/10 ,  A63B60/14 ,  A63B2209/023

摘要： A shaft of the present invention has a tip reinforcing layer. A prepreg s9 for the tip reinforcing layer has a portion having a larger circumferential direction width Ws toward a tip side. The prepreg s9 for the tip reinforcing layer has a thickness Pt of 0.06 mm or greater and 0.12 mm or less. An edge Ds of the tip reinforcing layer extends in an axial direction of the shaft while circulating in a circumferential direction of the shaft. An average value Ha of the five heights h11 to h15 is equal to or less than 0.03 mm.

摘要翻译： 本发明的轴具有尖端加强层。 用于尖端加强层的预浸料坯s9具有朝向尖端侧具有较大圆周方向宽度Ws的部分。 尖端加强层的预浸料坯s9的厚度Pt为0.06mm以上且0.12mm以下。 尖端加强层的边缘Ds沿着轴的轴向延伸，同时在轴的圆周方向上循环。 五个高度h11至h15的平均值Ha等于或小于0.03mm。