Patents by Inventor Toru Shimazaki
Toru Shimazaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6353953Abstract: A resin-made cushioning element 1 which is of one-piece construction includes upstanding and downstanding portions 2a and 2b alternately arranged in regular manner to form a matrix having four peripheries.Type: GrantFiled: October 27, 1999Date of Patent: March 12, 2002Assignee: Aisin Seiki Kabushiki KaishaInventors: Masao Tanaka, Shunji Kawando, Toru Shimazaki
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Patent number: 5947234Abstract: To reduce brake noise sufficiently, a vehicle disc brake of the present invention includes a pair of pads for supporting a disc rotor therebetween, with each pad being provided with a backing plate. A mounting member which is adapted to be secured to the vehicle is designed to receive brake torque applied to the pads. Two end surfaces of the backing plate, which are opposed substantially in the turning direction of the disc rotor, are provided with a pair of projections. The projections elastically abut on first brake torque receiving surfaces of the mounting member. The backing plate has also an end surface that is supported by second brake torque receiving surfaces of the mounting member. The first and second brake torque receiving surfaces are located towards the radially outward and inward sides of the disc rotor respectively, with respect to a center of gravity of the backing plate.Type: GrantFiled: April 8, 1997Date of Patent: September 7, 1999Assignee: Aisin Seiki Kabushiki KaishaInventor: Toru Shimazaki
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Patent number: 5649610Abstract: A pad clip for a disc brake includes a base portion for engaging with a concave portion of a mounting member of the disc brake, a spring portion which extends from the base portion for forcing a projection portion of a disc pad of the disc brake which is fit into the concave portion in the radial direction of the wheel and a curved extension portion which connects the spring portion to the base portion.Type: GrantFiled: May 30, 1995Date of Patent: July 22, 1997Assignee: Aisin Seiki Kabushiki KaishaInventors: Toru Shimazaki, Masayoshi Katagiri, Yasuyuki Hanai, Kenji Urata, Hideo Akao, Toshitaka Suga, Naoki Mouri, Hiroshi Anda, Yuichi Takeo
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Patent number: 5245281Abstract: An NMR imaging method for imaging with isotropic pixel resolution and a short scan time by applying a non-square scan matrix matched to the sectional shape of a subject, wherein a non-square scan matrix is set with different vertical and horizontal dimensions corresponding to the sectional form of a subject and scan data is collected under two-dimensional Fourier transformation by setting the longer sides of the matrix in the direction of projection and the shorter sides in the warp direction, while simultaneously displaying an image in a non-square image matrix wherein a length corresponds to projection width A on one side and whose length corresponds to M/N time of projection width A (where M: number of view, N: number of sample in the direction of projection, and M<N) on the other.Type: GrantFiled: September 15, 1988Date of Patent: September 14, 1993Assignee: Yokogawa Medical Systems, LimitedInventors: Noriaki Yamada, Susumu Kosugi, Toru Shimazaki, Makoto Miyazaki
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Patent number: 5090412Abstract: The present invention for realizing an ultrasonic diagnosis apparatus for displaying a high-quality image having a smaller amount of speckle noise is characterized in that receiving signals of a plurality of sound rays each having a different directionality within a range of bearing resolution of an ultrasonic beam are subjected to correlation processing to determine a receiving signal for the portion of one sound ray, and an image is formed on the basis of receiving signals thus determined, thereby eliminating speckle noise. Correlation processing in its simplest form may be addition averaging processing.Type: GrantFiled: February 27, 1990Date of Patent: February 25, 1992Assignee: Yokogawa Medical Systems, LimitedInventor: Toru Shimazaki
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Patent number: 5083568Abstract: An ultrasound diagnosing device in which resolving power becomes uniform in a direction orthogonal to a scanning direction of sound rays over a wide range from the shallow to the deep. Ultrasound signals are transmitted and received by changing combination of the arrays associated with transmission and/or receiving of the ultrasound waves depending on a depth of an object for observation by using an ultrasound probe incorporating a plurality of unidimensional arrays of a plurality of ultrasound oscillators arranged in parallel and an acoustic lens having intrinsic focal points for every array on the side of an ultrasound radiation face of these arrays.Type: GrantFiled: December 26, 1989Date of Patent: January 28, 1992Assignee: Yokogawa Medical Systems, LimitedInventors: Toru Shimazaki, Motoyoshi Ando, Hiroshi Tabei
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Patent number: 5058176Abstract: The image diagnosis apparatus of the present invention is equipped with means for automatically determining a window level and a window width for image displaying in accordance with the value of reconstructed image data. With this window level/window width calculating means (13), the window level is obtained with respect to each reconstructed image on the basis of the virtual average value of its pixel data and the window width is also obtained which has a certain relationship with that window level. When displaying each reconstructed image, a display is made in accordance with each window level and each window width thus obtained. Instead of the obtained window level and window width, those set by a manual setting section (23) may be used by a changeover operation when necessary.Type: GrantFiled: December 28, 1988Date of Patent: October 15, 1991Assignee: Yokogawa Medical Systems, LimitedInventors: Toru Shimazaki, Keiki Yamaguchi, Yoshihiko Watanabe, Noriaki Yamada
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Patent number: 5031625Abstract: A received ultrasonic phase matching circuit of the present invention, which utilizes variable delay lines having short delay times as the structural element of variable focus means having a larger aperture and realizes focusing to the regions from the region near the surface of object and to the deeper region thereof, comprises variable attenuators to be controlled individually and variable delay lines having the equal maximum delay times also to be controlled individually to the respective receiving channels forming the maximum aperture for reception of the ultrasonic echoes to form variable aperture by controlling variable attenuators and distribution of delay times for focusing in the aperture using only the variable delay times belonging to such aperture and add and combine the receiving signals delayed by the variable delay lines in the beam steering means.Type: GrantFiled: July 30, 1990Date of Patent: July 16, 1991Assignee: Yokogawa Medical Systems, LimitedInventors: Takao Higashiizumi, Toru Shimazaki, Keiki Yamaguchi, Yasuro Takiura
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Patent number: 4954780Abstract: A scan controller for an NMR imaging device, wherein the scan controller stores control signal waveforms in a waveform memory; stores control signal amplitudes in an amplitude memory; stores data related to the control signal duration in a time memory; reads the waveform memory by using an address counter which operates based on data read out from the time memory and outputs the waveform memory read out value after conversion to analog. The amplitude of the control signal is multiplied by the waveform of the control signal and converted from digital data to analog so that the resulting amplitude is related to the amplitude of the signal stored in the amplitude memory. In this manner high amplitude resolution is attained and requirement for large scale memory capacity is reduced.Type: GrantFiled: August 23, 1989Date of Patent: September 4, 1990Assignee: Yokogawa Medical Systems, LimitedInventor: Toru Shimazaki
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Patent number: 4733187Abstract: An NMR imaging apparatus of the present invention which is provided with an improved data acquiring means 16 and which is useful for enhancement of the speed of reconstruction of an image in NMR imaging by a multislice multiecho method is characterized in that a raw data memory 18 which is provided for storing raw data for the maximum number of slices that can be acquired in one scanning separately from the memory 10 of a computer system 6, and an address converter 19 for converting the addressses of the measured data supplied subsequently in accordance with the sequence of the multislice multiecho method and for storing the measured data in the raw data memory 18 in the arrangement different from the order of acquisition are disposed in a data acquiring device, so that a data block for each slice is formed in the raw data memory 18.Type: GrantFiled: January 23, 1987Date of Patent: March 22, 1988Assignee: Yokogawa Medical Systems, LimitedInventors: Toru Shimazaki, Yoshihiko Watanabe, Yasuo Imanishi
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Patent number: 4713616Abstract: An NMR imaging apparatus, wherein a 180.degree. RF pulse is applied shortly after the termination of the 90.degree. RF pulse, and wherein after such 180.degree. pulse application, to collection of spins and after collection of spins to dispersion of spins are sampled asymmetrically, whereby Fourier transformation takes place by interpolating missing data on a Fourier plane, and by operating on the data, image is accurately reconstructed. The novel pulse sequence improves the S/N ratio and reduces deterioration of images.Type: GrantFiled: May 16, 1986Date of Patent: December 15, 1987Assignees: Yokogawa Electric Corporation, Yokogawa Medical Systems, LimitedInventors: Toru Shimazaki, Hiroyuki Matsuura
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Patent number: 4700138Abstract: In measuring a number of echo signal, which normally attenuate chronologically, in a single pulse sequence, such as in multi-echo method or a multi-slice method, each echo signal is received and suitably amplified by a reception amplifier having predetermined levels of gain for different time periods during which the successive echo signals are processed such that the echo signals received at a data collection unit are all of substantially the same amplitude regardless of where they appear in the time sequence. The predetermined levels of gains are obtained by false scanning prior to actual image scanning and calculation and storing in a memory. As a result, the echo signals can be received within a dynamic range which is smaller than using the conventional system.Type: GrantFiled: June 12, 1986Date of Patent: October 13, 1987Assignees: Yokogawa Electric Corporation, Yokogawa Medical Systems, LimitedInventors: Toru Shimazaki, Yoshihiko Watanabe, Hideto Iwaoka
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Patent number: 4631710Abstract: In ultrasonic transmission from and reception by an array probe in a phased array sonar, when an ultrasonic beam is directed substantially in front of the array probe, an ultrasonic wave having a high center frequency f.sub.o, or a bandwidth extending into higher frequencies, is transmitted and/or received in order to insure a high image resolution. When the ultrasonic beam is steered sideways, an ultrasonic wave having a lower center frequency f.sub.o, or a higher frequency range cutoff in relation to a steering angle .theta., is transmitted and/or received in order to increase the angle at which grating lobes are generated and hence prevent such grating lobes from entering the angle range of the field of view.Type: GrantFiled: March 19, 1984Date of Patent: December 23, 1986Assignee: Yokogawa Medical Systems, LimitedInventors: Keiki Yamaguchi, Takao Higashiizumi, Toru Shimazaki, Shinichi Sano, Yasuhito Takeuchi
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Patent number: 4528854Abstract: A phased-array receiver used in an ultrasonic diagnostic apparatus or the like for appropriately varying the phases of the output voltages from transducer elements receiving ultrasonic waves and for summing these voltages to change the directional or other characteristics of ultrasonic waves. The receiver is equipped with a plurality of blocks each comprising a tapped delay line and a crosspoint switch. The crosspoint switch is capable of selecting any desired one of various delay periods of the delay line. The receiver can perform all types of scans ranging from linear scan, intermediate scan, dynamic focusing scan, to sector scan.Type: GrantFiled: February 2, 1984Date of Patent: July 16, 1985Assignee: Yokogawa Medical Systems, LimitedInventor: Toru Shimazaki
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Patent number: 4319489Abstract: An ultrasonic diagnostic method and apparatus are provided for probing the condition in a tissue of a living body by projecting an ultrasonic beam onto the living body from a vibrator array transducer probe consisting of a plurality of tiny ultrasonic vibrators. The apparatus executes two scanning actions, of which one is a normal linear scanning that drives the ultrasonic vibrators sequentially in the manner to cause a sequential parallel shift of the ultrasonic beam substantially perpendicular to the vibrator array, and the other of which is an inclined linear scanning that drives the ultrasonic vibrators at individually different timings while sequentially shifting the driven vibrators in the manner to cause sequential parallel shift of the ultrasonic beam having an angle of inclination against the vibrator array. The images obtained through the normal linear scanning and the inclined linear scanning are combined to form a composite high-resolution image.Type: GrantFiled: March 28, 1980Date of Patent: March 16, 1982Assignee: Yokogawa Electric Works, Ltd.Inventors: Keiki Yamaguchi, Yasuhito Takeuchi, Toru Shimazaki, Naoki Seki