公开(公告)号：US20130221968A1

公开(公告)日：2013-08-29

申请号：US13877702

申请日：2011-10-06

Applicant: Hideta Habara ,  Yoshitaka Bito ,  Hisaaki Ochi ,  Yoshihisa Soutome ,  Masayoshi Dohata ,  Tetsuhiko Takahashi ,  Hiroyuki Takeuchi

Inventor： Hideta Habara ,  Yoshitaka Bito ,  Hisaaki Ochi ,  Yoshihisa Soutome ,  Masayoshi Dohata ,  Tetsuhiko Takahashi ,  Hiroyuki Takeuchi

IPC: G01R33/34

CPC classification number: G01R33/34092 ,  G01R33/288 ,  G01R33/34046 ,  G01R33/3456 ,  G01R33/3657 ,  G01R33/422 ,  H01Q9/065 ,  H01Q21/20

Abstract: There is provided a technique for suppressing increase of SAR without sacrificing sensitivity in RF coils used in MRI apparatuses. The present invention provides an antenna device comprising a sheet-shaped conductor and a ribbon-shaped conductor disposed on the subject side with respect to the sheet-shaped conductor with a predetermined distance from the sheet-shaped conductor. The ribbon-shaped conductor has a meandering shape, and is adjusted so as to resonate at transmission and reception frequencies, and it is constituted so that distance to the sheet-shaped conductor becomes smaller at both end part thereof along the static magnetic field direction compared with the distance to the sheet-shaped conductor at the center thereof. Moreover, the ribbon-shaped conductor is constituted so as to have a smaller width, as the distance to the sheet-shaped conductor becomes smaller.

Abstract translation: 提供了抑制SAR增加的技术，而不牺牲MRI装置中使用的RF线圈的灵敏度。 本发明提供了一种天线装置，其包括片状导体和布置在与片状导体相距预定距离的片状导体的被检体侧的带状导体。 带状导体具有曲折形状，并且被调整为在发送和接收频率下谐振，并且其构造成使得沿着静磁场方向在其两端部处的与片状导体的距离变小 与其中心的片状导体的距离。 此外，随着与片状导体的距离变小，带状导体构成为具有较小的宽度。

公开(公告)号：US07999123B2

公开(公告)日：2011-08-16

申请号：US12301605

申请日：2007-05-17

Applicant: Yasuo Urata ,  Shunji Oshima ,  Ryousuke Nishibata ,  Keiichi Kodaki ,  Hiroyuki Takeuchi ,  Shuichi Matsui

Inventor： Yasuo Urata ,  Shunji Oshima ,  Ryousuke Nishibata ,  Keiichi Kodaki ,  Hiroyuki Takeuchi ,  Shuichi Matsui

IPC: C07D305/12

CPC classification number: C07D305/12 ,  C07D405/10 ,  C07D407/08

Abstract: An aldehyde derivative represented by the general formula (2) is reacted with ketene in the presence of a Lewis acid catalyst to produce a novel 2-oxetanone derivative (1), which is then purified to a 2-oxetanone derivative having a high trans-isomer purity, and then converted to a vinyl derivative (3) through decarboxylation reaction.

Abstract translation: 通式（2）表示的醛衍生物与路易斯酸催化剂存在下的乙烯酮反应生成新的2-氧杂环丁酮衍生物（1），然后将其纯化成具有高反式 - 异构体纯度，然后通过脱羧反应转化为乙烯基衍生物（3）。

公开(公告)号：US07967696B2

公开(公告)日：2011-06-28

申请号：US12222570

申请日：2008-08-12

Applicant: Hiroyuki Takeuchi

Inventor： Hiroyuki Takeuchi

IPC: A63B53/12 ,  A63B53/10

CPC classification number: A63B53/00 ,  A63B60/00 ,  A63B60/54 ,  A63B2209/00

Abstract: A golf club (2) includes a head (4), a shaft (6) and a grip (8). An elastic member (10) is attached to an external surface of the shaft (6). The elastic member (10) is ring-shaped and has no end. The elastic member (10) is externally fitted in the shaft (6) in a state in which an elastic contracting force is maintained. It is preferable that a fastening member for fastening the elastic member (10) from an outside should be provided. The fastening member is constituted to enable a mutual transition of a fastening state in which the elastic member is fastened and a removing state in which the fastening member is removed from the elastic member and is also removed from the golf club. It is preferable that the fastening member should be provided in no contact with the shaft (6) in the fastening state.

Abstract translation: 高尔夫球杆（2）包括头部（4），轴（6）和把手（8）。 弹性构件（10）附接到轴（6）的外表面。 弹性部件（10）是环状的，没有结束。 在保持弹性收缩力的状态下，弹性部件（10）以外部装配在轴（6）中。 应该提供用于从外部紧固弹性部件（10）的紧固部件。 紧固构件被构造成使得能够相互转移紧固状态，其中弹性构件被紧固，并且紧固构件从弹性构件移除并且也从高尔夫球杆移除的移除状态。 优选的是，在紧固状态下，紧固构件不应与轴（6）接触。

公开(公告)号：USD639399S1

公开(公告)日：2011-06-07

申请号：US29354803

申请日：2010-01-28

Applicant: Hiroyuki Takeuchi ,  Yasushi Takahashi ,  Masafumi Ishikawa

Designer： Hiroyuki Takeuchi ,  Yasushi Takahashi ,  Masafumi Ishikawa

公开(公告)号：US20110112393A1

公开(公告)日：2011-05-12

申请号：US13054155

申请日：2009-07-22

Applicant: Yo Taniguchi ,  Yoshitaka Bito ,  Shoichi Miyawaki ,  Hiroyuki Takeuchi ,  Suguru Yokosawa

Inventor： Yo Taniguchi ,  Yoshitaka Bito ,  Shoichi Miyawaki ,  Hiroyuki Takeuchi ,  Suguru Yokosawa

IPC: A61B5/055

CPC classification number: G01R33/56518 ,  A61B5/055 ,  A61B5/7257 ,  G01R33/5616 ,  G01R33/56341 ,  G01R33/56563

Abstract: In the diffusion-weighted imaging, amounts of distortion and amounts of phase offset of k-space data due to a temporally changing magnetic field error induced by eddy currents and vibrations associated with application of a diffusion-weighted gradient magnetic field pulse are corrected with good precision to improve image quality. Characteristic data for correcting distortion of k-space data are calculated for every position in the slice direction as peak shifts of projections observed between the cases of applying and not applying an MPG pulse. As the characteristic data, amounts of distortion in the read-out direction and the phase encoding direction and phase offset amounts in a slice plane are calculated.

Abstract translation: 在扩散加权成像中，由于由涡流引起的瞬时变化的磁场误差和与施加扩散加权梯度磁场脉冲相关的振动引起的k空间数据的失真量和相位偏移量被校正为良好 精度提高图像质量。 针对切片方向上的每个位置计算用于校正k空间数据的失真的特征数据，作为施加和不施加MPG脉冲的情况之间观察到的投影的峰值偏移。 作为特征数据，计算读取方向上的失真量和切片平面中的相位编码方向和相位偏移量。

公开(公告)号：US07928820B2

公开(公告)日：2011-04-19

申请号：US12358612

申请日：2009-01-23

Applicant: Tomoo Chiba ,  Hiroyuki Watanabe ,  Hirotaka Takeshima ,  Shigeki Tounosu ,  Mitsushi Abe ,  Hiroyuki Takeuchi

Inventor： Tomoo Chiba ,  Hiroyuki Watanabe ,  Hirotaka Takeshima ,  Shigeki Tounosu ,  Mitsushi Abe ,  Hiroyuki Takeuchi

IPC: H01F6/00 ,  G01V3/00

CPC classification number: H01F6/04 ,  G01R33/3804 ,  G01R33/3806 ,  G01R33/3815

Abstract: In a superconducting magnet, including a vacuum vessel, a coil vessel inside the vacuum vessel, and a superconducting coil inside the coil vessel for generating a magnetic field, has a magnetic member, disposed inside the vacuum vessel, supported with thermal insulation, for compensating the magnetic field; a heat exchange device disposed outside the vacuum vessel for supplying to or absorbing heat from the vacuum vessel; and thermal conducting members thermally connecting the heat exchange device via the vacuum vessel to the magnetic member. An MRI including the superconducting magnet is also disclosed.

Abstract translation: 在包括真空容器的真空容器的超导磁体中，真空容器内部的线圈容器和用于产生磁场的线圈容器内的超导线圈具有设置在真空容器内的热绝缘支撑的磁性构件，用于补偿 磁场; 设置在所述真空容器外部的用于从所述真空容器供给或吸收热量的热交换装置; 以及导热构件，其通过所述真空容器将所述热交换装置热连接到所述磁性构件。 还公开了包括超导磁体的MRI。

公开(公告)号：US07852076B2

公开(公告)日：2010-12-14

申请号：US12423431

申请日：2009-04-14

Applicant: Satoshi Hirata ,  Hisaaki Ochi ,  Yo Taniguchi ,  Tetsuhiko Takahashi ,  Hiroyuki Takeuchi

Inventor： Satoshi Hirata ,  Hisaaki Ochi ,  Yo Taniguchi ,  Tetsuhiko Takahashi ,  Hiroyuki Takeuchi

IPC: G01V3/00

CPC classification number: A61B5/411 ,  A61B5/0037 ,  A61B5/055 ,  A61B5/415 ,  A61B5/416 ,  A61B5/418 ,  A61B5/7257 ,  G01R33/389 ,  G01R33/485

Abstract: The present invention provides a magnetic resonance imaging system capable of performing spectrum measurement even when a magnetic resonant frequency changes during MRS measurement. A time-varying rate of a water magnetic resonant frequency is measured in advance before the MRS measurement. The amount of change in water magnetic resonant frequency during the MRS measurement is predicted from the measured time-varying rate. With the predicted value as the reference, a transmission frequency of an RF magnetic field irradiated in a signal suppression pulse sequence, a transmission frequency of an RF magnetic field for excitation and inversion and a received frequency at the detection of a magnetic resonance signal in a sequence of the MRS measurement are respectively set. A high-precision spectrum measurement is hence enabled.

Abstract translation: 本发明提供一种磁共振成像系统，即使MRS测量期间磁共振频率发生变化，也能进行光谱测量。 在MRS测量之前，预先测量水磁共振频率的时变速率。 MRS测量期间水磁共振频率的变化量根据测量的时变速率预测。 以预测值为参考，在信号抑制脉冲序列中照射的RF磁场的传输频率，用于激励和反转的RF磁场的传输频率和在检测磁共振信号中的接收频率 分别设置MRS测量的顺序。 因此，能够进行高精度的频谱测量。

公开(公告)号：USD620566S1

公开(公告)日：2010-07-27

申请号：US29346126

申请日：2009-10-27

Applicant: Rina Ogata ,  Yasushi Takahashi ,  Hiroyuki Takeuchi

Designer： Rina Ogata ,  Yasushi Takahashi ,  Hiroyuki Takeuchi

公开(公告)号：US20100156418A1

公开(公告)日：2010-06-24

申请号：US12663939

申请日：2008-06-25

Applicant: Takayuki Abe ,  Hiroyuki Takeuchi ,  Tetsuhiko Takahashi

Inventor： Takayuki Abe ,  Hiroyuki Takeuchi ,  Tetsuhiko Takahashi

IPC: G01R33/48

CPC classification number: A61B5/055 ,  G01R33/4828 ,  G01R33/4835 ,  G01R33/5607

Abstract: In order to stably obtain an even fat-suppressed image without reduction of an imaging efficiency and without being affected by unevenness of irradiation magnetic field of an RF pulse, when an imaging sequence having a first sequence part for suppressing a signal from a desired component of an examinee by applying a CHESS pulse and a second sequence part for measuring an echo signal from the examinee is repeated, the flip angle of the CHESS pulse is changed at plural times. In the case of multi-slice imaging, the flip angle of the CHESS pulse is changed in at lest two slice imaging.

Abstract translation: 为了稳定地获得均匀的脂肪抑制图像而不降低成像效率并且不受RF脉冲的照射磁场的不均匀性的影响，当具有用于抑制来自所需成分的信号的第一序列部分的成像序列 重复通过应用CHESS脉冲的受检者和用于测量来自受检者的回波信号的第二序列部分，CHESS脉冲的翻转角多次改变。 在多切片成像的情况下，CHESS脉冲的翻转角仅在两个切片成像中进行改变。

公开(公告)号：US20100013478A1

公开(公告)日：2010-01-21

申请号：US12439104

申请日：2007-09-28

Applicant: Takayuki Abe ,  Hiroyuki Takeuchi ,  Tetsuhiko Takahashi

Inventor： Takayuki Abe ,  Hiroyuki Takeuchi ,  Tetsuhiko Takahashi

IPC: G01R33/48

CPC classification number: G01R33/4828 ,  G01R33/5607

Abstract: A magnetic resonance imaging device includes magnetic field generating means and control means for controlling receiving means according to a predetermined pulse sequence, the predetermined pulse sequence including an unnecessary material suppressing sequence unit for canceling a signal from an unnecessary material which is not a measurement target and a main imaging sequence unit for measuring a nuclear magnetic resonance signal used to create an image of an examinee. The unnecessary material suppressing sequence unit generates at least two or more high frequency magnetic field pulses so that the longitudinal magnetization of the unnecessary material is made spatially uniform in the imaging space under application of a first high frequency magnetic field pulse in the main imaging sequence unit. The magnetic resonance imaging device further includes adjusting means for adjusting the flip angles of the two or more high frequency magnetic field pulses, and the control means applies the two or more high frequency magnetic field pulses at the flip angles adjusted by the adjusting means.

Abstract translation: 磁共振成像装置包括磁场产生装置和用于根据预定脉冲序列控制接收装置的控制装置，所述预定脉冲序列包括用于从不是测量目标的不必要材料消除信号的不必要材料抑制序列单元，以及 用于测量用于创建受检者的图像的核磁共振信号的主要成像序列单元。 不需要的材料抑制序列单元产生至少两个或更多个高频磁场脉冲，使得在主成像序列单元中施加第一高频磁场脉冲时，不需要的材料的纵向磁化在成像空间中在空间上均匀 。 磁共振成像装置还包括用于调节两个或多个高频磁场脉冲的翻转角的调节装置，并且控制装置以由调节装置调节的翻转角施加两个或更多个高频磁场脉冲。