公开(公告)号：US5438264A

公开(公告)日：1995-08-01

申请号：US82977

申请日：1993-06-29

Applicant: Hirotaka Takeshima ,  Hiroyuki Takeuchi ,  Chikako Nakamura

Inventor： Hirotaka Takeshima ,  Hiroyuki Takeuchi ,  Chikako Nakamura

IPC: A61B5/055 ,  G01R33/38 ,  G01R33/383 ,  H01F7/02 ,  G01V3/00

CPC classification number: H01F7/0278 ,  G01R33/383

Abstract: A magnetic field generating apparatus has a hollow permanent magnet formed of a plurality of permanent magnet elements arranged to have a polygonal section. Magnetization directions of the end portions of the hollow permanent magnet in its longitudinal direction are made different from those of the central portion thereof so that the magnetic field generated in a predetermined region in the hollow space of the permanent magnet is increased as compared with a case where the magnetizations of the hollow permanent magnet are all directed in the same direction.

Abstract translation: 磁场产生装置具有由多个被设置为具有多边形截面的永磁体构成的中空永磁体。 中空永久磁铁的长度方向的端部的磁化方向与其中心部分的磁化方向不同，使得在永磁体的中空空间中的预定区域中产生的磁场与壳体 其中中空永磁体的磁化全部以相同方向指向。

公开(公告)号：US5329354A

公开(公告)日：1994-07-12

申请号：US872216

申请日：1992-04-22

Applicant: Masaki Yamamoto ,  Keishi Kubo ,  Takeo Satoh ,  Ushio Sangawa ,  Hiroyuki Takeuchi

Inventor： Masaki Yamamoto ,  Keishi Kubo ,  Takeo Satoh ,  Ushio Sangawa ,  Hiroyuki Takeuchi

IPC: G03F7/23 ,  G03F9/00 ,  G01B9/02 ,  G01B11/00

CPC classification number: G03F9/70

Abstract: An alignment apparatus for use in an exposure system for exposing fine patterns on a wafer, the alignment apparatus comprising a light source optical system for emitting coherent alignment light, a positional deviation detecting optical system for receiving the alignment light reflected from the wafer, and a light-receiving optical system for detecting a positional deviation of the wafer on the basis of the alignment light received by the positional deviation detecting optical system. These three optical systems are arranged to be coupled through flexible optical fibers to each other. This coupling arrangement using the flexible optical fiber can reduce the size of the positional deviation detecting optical system whereby the positional deviation detecting optical system can be disposed directly under a projection lens of the exposure system, thereby accurately effecting the alignment of the wafer with respect to the projection lens.

Abstract translation: 一种用于曝光系统中用于在晶片上曝光精细图案的对准装置，该对准装置包括用于发射相干对准光的光源光学系统，用于接收从晶片反射的对准光的位置偏差检测光学系统，以及 光接收光学系统，用于基于由位置偏差检测光学系统接收到的对准光检测晶片的位置偏差。 这三个光学系统被布置成通过柔性光纤彼此耦合。 使用柔性光纤的这种耦合布置可以减小位置偏差检测光学系统的尺寸，由此位置偏移检测光学系统可以直接设置在曝光系统的投影透镜下方，从而精确地实现晶片相对于 投影镜头。

公开(公告)号：US5231467A

公开(公告)日：1993-07-27

申请号：US762111

申请日：1991-09-19

Applicant: Hiroyuki Takeuchi ,  Masaki Yamamoto ,  Takeo Sato ,  Yoshiyuki Sugiyama ,  Shinichiro Aoki

Inventor： Hiroyuki Takeuchi ,  Masaki Yamamoto ,  Takeo Sato ,  Yoshiyuki Sugiyama ,  Shinichiro Aoki

IPC: G03F9/00 ,  H01L21/68

CPC classification number: G03F9/7049 ,  H01L21/682

Abstract: A position signal producing apparatus, for an apparatus for project-printing a pattern on a reticle onto a wafer through a project lens system with exposure light, for producing a position signal indicative of the position of the wafer is disclosed, wherein two different frequency components of alignment light whose frequencies are different from that of the exposure light are interfered with each other at a position alignment blank to form interference fringes having a given pitch. The interference fringes are projected onto a diffraction grating through an achromatizing optical system and the project lens system. Diffracted light returning from the diffraction grating is received by a photodetector which provides a light beat signal. A position deviation signal obtained by phase comparison of the light beat signal provides position alignment by controlling relative positions between the position alignment blank and the diffraction grating. Two light beams of the two different frequency components split by a polarized beam splitter are equalized in image converting condition, or image aspect, by a mirror, so that an accurate mixing of the two frequency components of light beams is performed at the position alignment blank.

公开(公告)号：US5107216A

公开(公告)日：1992-04-21

申请号：US473428

申请日：1990-02-01

Applicant: Masao Yabusaki ,  Etsuji Yamamoto ,  Hiroyuki Takeuchi ,  Hideki Kohno

Inventor： Masao Yabusaki ,  Etsuji Yamamoto ,  Hiroyuki Takeuchi ,  Hideki Kohno

IPC: G01R33/32 ,  A61B5/055 ,  G01R33/343 ,  G01R33/36

CPC classification number: G01R33/3657 ,  G01R33/343

Abstract: In an imaging apparatus using the nuclear magnetic resonance, a solenoid coil and a slot-resonator coil are combined with each other so as to constitute a quadrature-phase detection probe. In order to operate the slot-resonator coil at low frequency, inductance is added to the slot-resonator coil. Further in order to cut the coupling between a transmitting coil and a receiving coil in a cross coil system, a capacitor together with the added inductance to form a resonant circuit is connected in parallel to the inductance. A favorable probe can be obtained in a vertical-magnetic field type imaging apparatus.

Abstract translation: 在使用核磁共振的成像装置中，螺线管线圈和缝隙谐振器线圈彼此组合以构成正交相位检测探针。 为了以低频操作缝隙谐振器线圈，电感被加到缝隙谐振器线圈上。 此外，为了切断交叉线圈系统中的发送线圈和接收线圈之间的耦合，电容器与附加的电感一起形成谐振电路并联连接到电感。 可以在垂直磁场型成像装置中获得良好的探针。

公开(公告)号：US5101892A

公开(公告)日：1992-04-07

申请号：US697481

申请日：1991-05-02

Applicant: Hiroyuki Takeuchi ,  Shozoh Fujii

Inventor： Hiroyuki Takeuchi ,  Shozoh Fujii

IPC: B23K9/028 ,  B23K33/00 ,  F28F9/18 ,  F28F9/22

CPC classification number: F28F9/182 ,  F28F9/22 ,  F28F2265/30

Abstract: A heat exchanger having a plurality of tubes extending between front and rear tubesheets, baffles arranged inside the shell along a longitudinal direction of the tubes and 2 types of weld structures on respective tubesheets. Each of the tubes has an outer diameter in the range of 25.4 to 50.8 mm and the front tubesheet has a thickness less then 50 mm. The 2 types of welds comprise:(a) a structure (Type A) in which the tubesheet is provided with a hole having an inner diameter substantially equal to that of the tube, a protruded peripheral portion formed around an outside opening of the hole and an inside stepped cutout into which the end of the tube is inserted and a weld formed; and(b) a structure (Type B) in which the tube sheet is provided with an inner tapered hole and an adjacent communicating linear small diameter hole, a tube having an end portion provided with an inside stepped cutout which is inserted into the small diameter hole, and a weld formed.

Abstract translation: 一种热交换器，其具有在前后管板之间延伸的多个管，沿着管的纵向方向布置在壳体内的挡板和在各管板上的两种类型的焊接结构。 每个管的外径在25.4至50.8mm的范围内，前管板的厚度小于50mm。 两种类型的焊缝包括：（a）一种结构（类型A），其中管板设置有具有与管的内径基本相等的内径的孔，围绕孔的外部开口形成的突出周边部分，以及 内部阶梯式切口，管的端部插入其中并形成焊缝; 和（b）其中管板设置有内锥形孔和相邻的连通线性小直径孔的结构（B型），具有设置有内部阶梯式切口的端部的管，其插入到小直径 孔，形成焊缝。

公开(公告)号：US4873039A

公开(公告)日：1989-10-10

申请号：US155703

申请日：1988-02-16

Applicant: Tamio Serita ,  Hiroyuki Takeuchi

Inventor： Tamio Serita ,  Hiroyuki Takeuchi

IPC: C04B35/589

CPC classification number: C04B35/589

Abstract: Forming a shaped article of polysilazane, contacting this shaped article with dry ammonia at a temperature of 20.degree.-200.degree. C. to thereby effect infusibilization, and finally subjecting the ammonia-treated product to further heat treatment at a higher temperature in a nitrogen atmosphere to thereby produce a shaped ceramic article.

Abstract translation: 形成聚硅氮烷的成型制品，在20〜200℃的温度下将该成形体与干燥氨接触，从而进行消融，最后在氮气气氛中，在较高温度下进一步对氨处理物进行热处理 从而制成成形陶瓷制品。

公开(公告)号：US4804919A

公开(公告)日：1989-02-14

申请号：US113602

申请日：1987-10-28

Applicant: Hiroyuki Takeuchi ,  Hidenori Kishino

Inventor： Hiroyuki Takeuchi ,  Hidenori Kishino

IPC: A61B5/055 ,  G01R33/48 ,  G01R33/54 ,  G01R33/565 ,  G01R33/20

CPC classification number: G01R33/482 ,  G01R33/56563

Abstract: Before beginning a prior art imaging sequence, at first parts producing artifact are excited by applying a high frequency magnetic field thereto in a frequency band, which includes the parts emitting artifact and doesn't include a desired slice plane. Next, the phase of the excited spin is extremely rotated by applying at least one of gradient magnetic fields G.sub.x, G.sub.y, G.sub.z. When the prior art imaging sequence is effected thereafter, the produced artifact is imaged as a high spatial frequency component of an object body to be examined. Since a usual object body to be examined contains many low spatial frequency components and the power of high spatial frequency components is extremely small, it becomes possible to reduce the artifact in such an extent that it cannot be practically recognized.

Abstract translation: 在开始现有技术的成像序列之前，通过在包括发射伪影的部分并且不包括期望的切片平面的频带中施加高频磁场来激励产生伪影的第一部分。 接下来，通过施加梯度磁场Gx，Gy，Gz中的至少一个来使激发的自旋的相位极度旋转。 当之后实现现有技术的成像序列时，所产生的假象被成像为要检查的物体的高空间频率分量。 由于要检查的通常的物体包含许多低空间频率分量，并且高空间频率分量的功率非常小，所以可以在不能实际识别的程度上减少伪影。

公开(公告)号：US4769757A

公开(公告)日：1988-09-06

申请号：US854555

申请日：1986-04-21

Applicant: Isao Horiba ,  Hiroyuki Takeuchi ,  Hiroshi Nishimura

Inventor： Isao Horiba ,  Hiroyuki Takeuchi ,  Hiroshi Nishimura

IPC: H05G1/00 ,  A61B6/03 ,  G01T1/29 ,  G06F15/42

CPC classification number: A61B6/032 ,  G01T1/2985 ,  Y10S378/901

Abstract: A CT scanner including a scanning device including (a) device for rotating an x-ray source around an object to be examined, the x-ray source radiating x-rays, while the x-ray source is being rotated, in the form of fan beams covering a region of the object to be examined, and (b) a multielement x-ray detector for detecting x-ray fan beams transmitted through the object to thus collect data around the irradiated object; an arithmetic device for arithmetically reconstructing the distribution of the x-ray absorption coefficients of the object across a measured cross-section from the data; and a display for displaying the distribution where the arithmetic device includes a device for producing data equivalent to data derived from parallel beams not regularly spaced apart from each other from the collected data around the irradiated object, a device for subjecting the produced data to filtering, and a device for correcting inhomogeneity in the data equivalent to data derived from parallel beams not regularly spaced and for back-projecting the image of the distribution.

Abstract translation: 一种CT扫描仪，其包括扫描装置，所述扫描装置包括：（a）用于使x射线源围绕待检查对象旋转的装置，所述X射线源在X射线源正在旋转的同时X射线源以X射线源旋转的形式 扇形光束覆盖待检测物体的区域，以及（b）多元素X射线检测器，用于检测通过物体透射的x射线扇形光束，从而收集被照射物体周围的数据; 算术装置，用于在数据的测量横截面上算术地重建物体的x射线吸收系数的分布; 以及用于显示分配的显示器，其中所述运算装置包括用于产生与从所述被照射对象周围的所收集的数据彼此不规则地间隔开的并行光束导出的数据相当的数据的装置;用于对所生成的数据进行滤波的装置， 以及用于校正与不规则间隔的平行光源导出的数据相当的数据的不均匀性的装置，以及用于反投影分布图像的装置。

公开(公告)号：US09726744B2

公开(公告)日：2017-08-08

申请号：US14241515

申请日：2012-07-27

Applicant: Yukio Kaneko ,  Yoshihisa Soutome ,  Yoshitaka Bito ,  Hiroyuki Takeuchi ,  Tetsuhiko Takahashi ,  Hideta Habara ,  Yosuke Otake

Inventor： Yukio Kaneko ,  Yoshihisa Soutome ,  Yoshitaka Bito ,  Hiroyuki Takeuchi ,  Tetsuhiko Takahashi ,  Hideta Habara ,  Yosuke Otake

IPC: G01R33/565 ,  G01R33/24 ,  A61B5/055 ,  G01R33/483 ,  G01R33/561

CPC classification number: G01R33/5659 ,  A61B5/055 ,  G01R33/246 ,  G01R33/4835 ,  G01R33/5612

Abstract: Systems and methods for magnetic resonance imaging, including adjusting spatial distribution of a rotating magnetic field. By minimizing imaging time, the B1 nonuniformity reducing effect of RF shimming is maximized for an imaging section of an arbitrary axis direction and an arbitrary position. B1 distributions are measured for only several sections of one predetermined direction, and a radio frequency magnetic field condition that maximizes the B1 non-uniformity reducing effect for an imaging section of an arbitrary direction and an arbitrary position is calculated from the B1 distribution data.

公开(公告)号：US09638771B2

公开(公告)日：2017-05-02

申请号：US13811979

申请日：2011-07-25

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

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

IPC: G01R33/34 ,  A61B5/055 ,  G01R33/345 ,  G01R33/36 ,  G01R33/422

CPC classification number: G01R33/34 ,  A61B5/055 ,  G01R33/34046 ,  G01R33/34084 ,  G01R33/3453 ,  G01R33/365 ,  G01R33/3657 ,  G01R33/3678 ,  G01R33/422

Abstract: A technique is provided to reserve large examination space in the tunnel type MRI apparatus, without increasing production cost nor reducing significantly irradiation efficiency and homogeneity in an irradiation distribution within an imaging region. The present invention provides an RF coil unit in which four partial cylindrical coils are placed with a gap therebetween in the circumferential direction inside a cylindrical RF shield, in such a manner that two pairs of the partial cylindrical coils are opposed to each other, and magnetic fields produced by the individual partial cylindrical coils are combined, thereby producing a circularly polarized wave field or an elliptically polarized wave field. The partial cylindrical coil is provided with a partial cylindrical conductor, multiple first conductors substantially parallel with the central axis of the RF shield, multiple capacitors connecting both ends of the first conductors with the partial cylindrical conductor, and a second conductor adjacent to at least one of the ends of the first conductor. The partial cylindrical coils are respectively provided with high frequency signals having a desired amplitude ratio and phase difference, while a reference frequency thereof being identical.