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    • 93. 发明申请
    • Superconducting magnet apparatus for MRI
    • MRI超导磁体设备
    • US20060290351A1
    • 2006-12-28
    • US11305010
    • 2005-12-19
    • Takahiro Matsumoto
    • Takahiro Matsumoto
    • G01V3/00
    • G01R33/3815G01R33/3806
    • In a superconducting magnets for MRI configured to generate a homogeneous magnetic field and a gradient magnetic field in a space between a top superconducting magnet and a bottom superconducting magnet, the bottom superconducting magnet is provided with a supporting member that supports a helium vessel, and the supporting member is fixed to a vacuum vessel of the bottom superconducting magnet at one end, and is fixed to the floor surface in the vicinity of the end fixed to the vacuum vessel. A high-quality MR image can be thus obtained by preventing direct transmission of oscillation of the gradient coils to the superconducting magnet and reducing oscillation of the gradient coils while achieving a reduction of the overall superconducting magnet in size.
    • 在用于MRI的超导磁​​体被配置为在顶部超导磁体和底部超导磁体之间的空间中产生均匀的磁场和梯度磁场,底部超导磁体设置有支撑氦容器的支撑构件,并且 支撑构件在一端固定到底部超导磁体的真空容器,并且固定到固定到真空容器的端部附近的地板表面。 因此可以通过防止梯形线圈的振荡直接传递到超导磁体并减小梯度线圈的振荡,同时实现整个超导磁体的尺寸的减小,从而可以获得高质量的MR图像。
    • 94. 发明申请
    • Position detecting device and position detecting method
    • 位置检测装置和位置检测方法
    • US20060241894A1
    • 2006-10-26
    • US11474331
    • 2006-06-26
    • Takahiro MatsumotoHideki Ina
    • Takahiro MatsumotoHideki Ina
    • G01C17/00
    • G03F9/7088G03F7/70633G03F9/7003G03F9/7046G03F9/7065G03F9/7069G03F9/7092
    • A position detection method for detecting the position of marks comprises the following steps: a step for detecting first information relating to the position of the mark by detecting light from the mark under first measurement conditions; a step for detecting second information relating to the position of the mark by detecting light from the mark under second measurement conditions which differ from the first measurement conditions; and a step for detecting the position of the mark based on the first and second information, thereby providing a high-precision position detecting method and device serving as an alignment or overlaying detection device in an exposure apparatuses used in manufacturing semiconductor devices, wherein position detection precision is not lost even in the event that the alignment marks are not symmetrical or there are irregularities in the non-symmetry of multiple alignment marks within the same wafer.
    • 用于检测标记位置的位置检测方法包括以下步骤:通过在第一测量条件下检测来自标记的光来检测与标记的位置有关的第一信息的步骤; 通过在与第一测量条件不同的第二测量条件下检测来自标记的光来检测与标记的位置有关的第二信息的步骤; 以及基于第一和第二信息来检测标记的位置的步骤,从而在用于制造半导体器件的曝光装置中提供用于对准或重叠检测装置的高精度位置检测方法和装置,其中位置检测 即使在对准标记不对称或在同一晶片内的多个对准标记的非对称性中存在不规则性的情况下,精度也不会降低。
    • 97. 发明授权
    • Phenyl triester compound and anti-ferroelectric liquid crystal composition containing the same
    • 苯基三酯化合物和含有它的反铁电液晶组合物
    • US06217954B1
    • 2001-04-17
    • US09413482
    • 1999-10-06
    • Yuki MotoyamaTakahiro MatsumotoMasahiro JohnoTomoyuki Yui
    • Yuki MotoyamaTakahiro MatsumotoMasahiro JohnoTomoyuki Yui
    • C09K1912
    • C09K19/0266C07C69/90C09K19/2021Y10T428/10
    • An anti-ferroelectric liquid crystal composition containing a phenyl triester compound of the formula (1), wherein R1 is a linear alkyl group having 6 to 12 carbon atoms, m is an integer of 0 to 3, n is an integer of 1 to 3, and X1 is a hydrogen atom or a fluorine atom, and an anti-ferroelectric liquid crystal compound of the formula (2),  wherein R2 is a linear alkyl group having 6 to 12 carbon atoms, X2 is a hydrogen atom or a fluorine atom, A is —CH3 or —CF3, r is 0 or 1 and C* is an asymmetric carbon, provided that when A is —CH3, r is 0 and p is an integer of 4 to 10, that when A is —CF3 and when r is 0, p is an integer of 6 to 8, and further than when A is —CF3 and when r is 1, q is an integer of 5 to 8 and p is 2 or 4. The phenyl triester compound and anti-ferroelectric liquid crystal compound composition is not only improved in response speed but also shows remarkably controlled layer rotation, and it can achieve a simple matrix liquid crystal display device which is free of a change in contrast and is highly reliable in use for a long period of time.
    • 一种含有式(1)的苯基三酯化合物的反铁电液晶组合物,其中,R 1为碳原子数6〜12的直链烷基,m为0〜3的整数,n为1〜3的整数。 ,X 1为氢原子或氟原子,式(2)的反铁电液晶化合物,其中,R2为碳原子数6〜12的直链烷基,X2为氢原子或氟原子 A为-CH 3或-CF 3,r为0或1,C *为不对称碳,条件是当A为-CH 3时,r为0,p为4至10的整数,当A为-CF 3和 当r为0时,p为6至8的整数,并且当A为-CF 3时,当r为1时,q为5至8的整数,p为2或4.苯基三酯化合物和抗 - 铁电液晶化合物组合物不仅提高了响应速度,而且显示出显着控制的层旋转,并且可以实现简单的矩阵液晶显示装置,其不含ch 相比之下,在长时间使用中是高度可靠的。
    • 98. 发明授权
    • Displacement measuring method and apparatus using plural light beam beat
frequency signals
    • 使用多个光束拍频信号的位移测量方法和装置
    • US5818588A
    • 1998-10-06
    • US962680
    • 1997-11-03
    • Takahiro MatsumotoKoichi Sentoku
    • Takahiro MatsumotoKoichi Sentoku
    • G01B9/02G01D5/26
    • G01B9/02007G01B9/02003G01B9/02019G01B9/02022G01D5/266G01B2290/45G01B2290/60G01B2290/70
    • A displacement measuring method for measuring displacement of an object to be examined is disclosed, wherein light which contains two components having a small difference in frequency is separated into a first light of a firs wavelength and a second light of a second wavelength, having different frequencies. First light beam of the first light and a second light beam of the second light interfere with each other, wherein at least one of the first and second light beams is directed via the object, whereby a first light beat signal is produced. Third light beam of the first light and a fourth light beam of the second light interfere with each other, wherein at least one of the third and fourth light beams is directed via the object, whereby a second light beat signal having a predetermined phase difference as compared with the first light beat signal is produced. Then, displacement of the object is measured on the basis of a phase resulting from comparison of the phases of the first and second light beat signals.
    • 公开了一种用于测量待检测物体的位移的位移测量方法,其中包含具有小的频率差的两个分量的光被分离成具有不同频率的第一波长的第一光和第二波长的第二光 。 第一光的第一光束和第二光的第二光束彼此干涉,其中第一和第二光束中的至少一个通过物体被引导,由此产生第一光拍信号。 第一光的第三光束和第二光的第四光束彼此干涉,其中第三和第四光束中的至少一个经由物体被引导,由此具有预定相位差的第二光拍信号作为 与第一个光拍信号相比产生。 然后,基于通过比较第一和第二光拍信号的相位而产生的相位来测量物体的位移。
    • 100. 发明授权
    • Apparatus for detecting positional deviation of diffraction gratings on
a substrate by utilizing optical heterodyne interference of light beams
incident on the gratings from first and second light emitters
    • 用于通过利用入射在来自第一和第二发光体的光栅的光束的光学外差干涉来检测基板上的衍射光栅的位置偏差的装置
    • US5682239A
    • 1997-10-28
    • US528817
    • 1995-09-15
    • Takahiro MatsumotoKenji SaitohKoichi Sentoku
    • Takahiro MatsumotoKenji SaitohKoichi Sentoku
    • G01B9/02G01B11/00G03F7/20G03F9/00
    • G03F7/70633G03F9/70
    • Apparatus for detecting a positional deviation of two diffraction gratings of each of first and second pairs of diffraction gratings formed on a substrate, by utilizing an optical heterodyne interference method. The apparatus includes a first light emitter for emitting a pair of coherent light beams having different frequencies close to a first frequency, a second light emitter for emitting a pair of coherent light beams having different frequencies close to a second frequency, different from the first frequency, a four-way radiating unit radiating the two pairs of light beams in four directions and for causing a selected pair of the light beams to be incident on a corresponding one of the first and second pairs of the diffraction gratings such that corresponding beam spots overlap with each other, a splitter for splitting diffracted light beams from the diffraction gratings according to frequencies of the diffracted light beams, to separate a first diffracted light beam, which is diffracted from the first pair of diffraction gratings in a diffraction direction, and a second diffracted light beam, which is diffracted from the second pair of diffraction gratings in the same diffraction direction, a beat signal detector for detecting beat signals respectively corresponding to the split light beams, and a deviation detecting unit for receiving the detected beat signals and for detecting a positional deviation in a predetermined direction of two diffraction gratings of each of the first and second pairs, from the beat signals respectively corresponding to the two diffraction gratings of a corresponding one of the first and second pairs.
    • 用于通过利用光学外差干扰法检测形成在基板上的第一和第二对衍射光栅中的每一个的两个衍射光栅的位置偏差的装置。 该装置包括用于发射具有接近于第一频率的不同频率的一对相干光束的第一光发射器,用于发射具有接近第二频率的不同频率的一对相干光束的第二光发射器,其不同于第一频率 ,四路辐射单元,其在四个方向上辐射两对光束,并且使所选择的一对光束入射在第一和第二对衍射光栅中的相应一个上,使得相应的光束点重叠 彼此分离,用于根据衍射光束的频率从衍射光栅分离衍射光束,以在衍射方向上分离从第一对衍射光栅衍射的第一衍射光束,以及第二衍射光束 衍射光束在相同的衍射光谱中衍射自第二对衍射光栅 n是用于检测分别对应于分割光束的拍频信号的拍频信号检测器,以及用于接收所检测到的拍频信号并检测第一和第二声道中的每一个的两个衍射光栅的预定方向的位置偏差的偏差检测单元 从分别对应于第一和第二对应的一个的两个衍射光栅的拍子信号对。