Patents by Inventor Tetsuya Kawagishi

Tetsuya Kawagishi 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).

  • Patent number: 10405833
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment generates, based on the echo signal, velocity distribution information of a tissue in the object. The ultrasonic diagnostic apparatus generates state information representing a cycle of the pressurization or the depressurization and target information representing a target cycle of pressurization or depressurization based on the velocity distribution information. The ultrasonic diagnostic apparatus associates one of two variables defining a predetermined graphic pattern with the cycle, displays the state information and the target information as the graphic pattern, and displays the graphic pattern upon deforming a shape of the graphic pattern in accordance with a change in the cycle of the pressurization or the depressurization in the state information.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: September 10, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Ryota Osumi, Tetsuya Kawagishi, Yasuhiko Abe, Toshie Maruyama
  • Publication number: 20190261953
    Abstract: According to one embodiment, an analysis apparatus includes processing circuitry. The processing circuitry configured to generate a harmonic signal and a fundamental wave signal based on a reception signal that is collected by an ultrasound probe, the harmonic signal corresponding to a harmonic component of a reflected wave of a ultrasound generated in the subject, the fundamental wave signal corresponding to a fundamental wave component of the reflected wave, calculate a first index value indicating tissue properties of the subject based on the harmonic signal, and calculate a second index value indicating the tissue properties based on the fundamental wave signal, and display an analysis result based on the first index value and the second index value.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 29, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Yasunori HONJO, Masaki WATANABE, Tetsuya KAWAGISHI, Keita YONEMORI
  • Patent number: 10363018
    Abstract: According to one embodiment, a medical processing apparatus includes processing circuitry. The processing circuitry adds incidental information including information regarding a kind concerning each of a plurality of regions in a heart to an analysis result of each of the regions. The analysis result is obtained by analyzing medical data. The processing circuitry determines a display position of the analysis result of each of the regions based on the incidental information.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: July 30, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Shogo Fukuda, Yasuhiko Abe, Tetsuya Kawagishi, Koji Ando, Mitsuo Akiyama
  • Patent number: 10342514
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a setting unit, a transmitter, a signal processing unit, and an image generating unit. The setting unit sets a plurality of ROIs within a scanning region. The transmitter transmits an ultrasonic wave for displacement generation on a plurality of transmission conditions corresponding to the respective ROIs from an ultrasonic probe and transmits an ultrasonic wave for observation that observes a displacement generated by each transmission of the ultrasonic wave for displacement generation, from the ultrasonic probe a plurality of times. The signal processing unit analyzes a plurality of pieces of reflected wave data, acquires a plurality of pieces of displacement information, and calculates distribution information on the respective transmission conditions. The image generating unit generates a plurality of pieces of image data based on the pieces of distribution information and composite image data by composing the pieces of image data.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 9, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yuko Kanayama, Akihiro Kakee, Tetsuya Kawagishi
  • Patent number: 10278670
    Abstract: In general, according to one embodiment, an ultrasonic diagnostic apparatus is used to observe a position and puncture direction of a puncture needle in an object in a paracentesis, and comprises data acquisition unit, image generation unit and a display. The data acquisition unit acquires a plurality of first ultrasound data concerning an inside of the object, acquire a plurality of second ultrasound data concerning the inside of the object, and acquire a plurality of third ultrasound data concerning the inside of the object. The image generation unit generates a tissue image displaying a living body tissue by using the first ultrasound data, generate a puncture image displaying the puncture needle based on image processing using the second ultrasound data and the third ultrasound data, and generate a composite image visualizing the living body tissue and the puncture needle by using the tissue image and the puncture image.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 7, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hiroyuki Ohuchi, Tetsuya Yoshida, Tetsuya Kawagishi, Yoko Okamura
  • Patent number: 10234557
    Abstract: A signal processing apparatus of an embodiment includes processing circuitry and control circuitry. The processing circuitry acquires a plurality of IQ signals obtained by performing a plurality of processing with different conditions on reflected wave signals generated at a transducer element included in an ultrasound probe. The processing circuitry generates a compound signal compounded by non-linear processing of the IQ signals. The control circuitry causes a display to display image data based on the compound signal.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: March 19, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yasunori Honjo, Yasuhiko Abe, Tetsuya Kawagishi, Akihiro Kakee, Takeshi Sato, Makoto Hirama
  • Publication number: 20190000414
    Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to perform a speckle noise reducing process on each of a plurality of images that were acquired by using an ultrasound wave and are in a time series. The processing circuitry is configured to calculate an index value indicating fluttering of image signal intensities in each of multiple positions within a region of interest, on the basis of the plurality of images resulting from the speckle noise reducing process.
    Type: Application
    Filed: May 25, 2018
    Publication date: January 3, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Yasunori Honjo, Masaki Watanabe, Tetsuya Kawagishi, Koichiro Kurita
  • Patent number: 10143439
    Abstract: An ultrasound diagnosis apparatus includes: a transmitting and receiving unit that transmits and receives an ultrasound wave to and from a subject; a first image data generating unit that generates first image data based on a first parameter, from a reception signal received by the transmitting and receiving unit; a second image data generating unit that generates second image data having an image taking region of which at least a part overlaps with that of the first image data and being based on a second parameter that is different from the first parameter, from a reception signal received by the transmitting and receiving unit; and an image processing unit that calculates a feature amount from at least such a part of the second image data that overlaps with the first image data and corrects the overlapping part of the first image data on a basis of the calculated feature amount.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: December 4, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Ryota Osumi, Tetsuya Kawagishi
  • Patent number: 10117636
    Abstract: Position coordinate information of each point three-dimensionally forming a tissue corresponding to a diagnosis target at each time phase is obtained, a quantitative value for evaluating the movement of the tissue corresponding to the diagnosis target is calculated by using the position information, and the result is output in a predetermined form. Accordingly, since the quantitative value for evaluating the movement is calculated by using the three-dimensional position coordinate information without converting wall movement information obtained by a three-dimensional tracking process into two-dimensional information, it is possible to provide medical information with a higher degree of precision.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: November 6, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hiroyuki Ohuchi, Shinichi Hashimoto, Yasuhiko Abe, Tetsuya Kawagishi
  • Patent number: 10064601
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment include a transmitter/receiver, a signal processor, and an image generator. The transmitter/receiver causes an ultrasonic probe to transmit on each scanning line at least three ultrasonic pulses, the three ultrasonic pulses being: a first ultrasonic pulse including at least one frequency component and being transmitted with a first phase; a second ultrasonic pulse including the frequency component and being transmitted with a second phase different from the first phase by 180 degrees; and a third ultrasonic pulse including the frequency component and being transmitted with a third phase different from the first phase and the second phase by 90 degrees and generates a plurality of reception signals corresponding to the respective ultrasonic pulses. The signal processor combines the plurality of the reception signals and generates a composite signal. The image generator generates ultrasonic image data.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: September 4, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Takeshi Fukasawa, Tetsuya Kawagishi, Akihiro Kakee, Makoto Hirama
  • Patent number: 10028724
    Abstract: An ultrasonic diagnosis apparatus according to an embodiment includes a controller, a processor, and an image generator. The controller selects at least one transducer element in a reception aperture formed of a transducer element group arranged in a predetermined direction, based on at least a deflection angle of an ultrasonic wave transmitted to a subject. The processor performs processing on at least one reception signal of a plurality of reception signals generated in the reception aperture such that a signal intensity of a reception signal generated in the at least one transducer element selected by the controller is reduced to be lower than a signal intensity of reception signals generated in transducer elements other than the at least one transducer element, to output the reception signal of the reception aperture. The image generator generates ultrasonic image data, based on the reception signal of the reception aperture.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: July 24, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yasunori Honjo, Yasuhiko Abe, Tetsuya Kawagishi, Makoto Hirama, Takeshi Sato
  • Patent number: 9907533
    Abstract: According to one embodiment, an ultrasonic diagnosis apparatus includes a display unit to display an ultrasonic image, a comparison unit to compare the signal/echo intensity of a cardiac chamber portion of an ultrasonic image with the signal/echo intensity of a myocardial portion of the image, and an indication generating unit to generate a specific indication at a time point when the signal/echo intensity of the cardiac chamber portion changes from a higher value to a lower value than the signal/echo intensity of the myocardial portion or at another time point with reference to the time point.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: March 6, 2018
    Assignees: Toshiba Medical Systems Corporation, THE KANSAI ELECTRIC POWER CO., INC.
    Inventors: Tetsuya Kawagishi, Katsuhisa Ishii
  • Publication number: 20180055487
    Abstract: An ultrasound diagnosis apparatus includes a calculating unit, an obtaining unit, a determining unit, and a controlling unit. By using a plurality of pieces of three-dimensional ultrasound image data in a time series corresponding to a three-dimensional region including a myocardium of a subject, the calculating unit calculates first movement information indicating a movement of the myocardium by tracking a movement of a region of interest that corresponds to the myocardium and that is set in each of the plurality of pieces of three-dimensional image data. The obtaining unit obtains direction information indicating a direction of a myocardial fiber in the myocardium. The determining unit determines second movement information indicating a movement of the myocardium with respect to the direction of the myocardial fiber, on the basis of the first movement information and the direction information. The controlling unit causes a display unit to display the second movement information.
    Type: Application
    Filed: November 3, 2017
    Publication date: March 1, 2018
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Yasuhiko Abe, Tetsuya Kawagishi
  • Publication number: 20180028153
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes an ultrasound probe and processing circuitry. The ultrasound probe sequentially executes sets of ultrasound transmission respectively along a plurality of scan lines, the sets each being composed only of transmission of first ultrasound having a first phase and transmission of second ultrasound having a second phase that is substantially 90 degrees different from the first phase. With respect to a first echo signal and a second echo signal that have been obtained via the ultrasound probe and correspond to the first ultrasound and the second ultrasound, respectively, the processing circuitry generates a subtraction signal by subtracting the second echo signal from the first echo signal. The processing circuitry generates an ultrasound image based on the subtraction signals generated for the scan lines.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Koji KUROIWA, Tetsuya KAWAGISHI, Takeshi FUKASAWA
  • Publication number: 20180021024
    Abstract: According to one embodiment, a medical processing apparatus includes processing circuitry. The processing circuitry adds incidental information including information regarding a kind concerning each of a plurality of regions in a heart to an analysis result of each of the regions. The analysis result is obtained by analyzing medical data. The processing circuitry determines a display position of the analysis result of each of the regions based on the incidental information.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 25, 2018
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Shogo FUKUDA, Yasuhiko ABE, Tetsuya KAWAGISHI, Koji ANDO, Mitsuo AKIYAMA
  • Patent number: 9861341
    Abstract: An ultrasound diagnosis apparatus includes a transmission and reception unit, an addition unit, an image generation unit, and a control unit. The transmission and reception unit performs a set of ultrasound transmission and reception in a first mode or a plurality of sets of ultrasound transmission and reception in a second mode along the same scan line. Each set of ultrasound transmission and reception is constituted of repeated ultrasound transmission and reception sequentially performed in reversed phase polarity along the same scan line. The addition unit adds reflected wave data in the second mode. The image generation unit generates an image by using reflected wave data in the first mode or in the second mode. The control unit switches the first mode and the second mode. The transmission and reception unit performs a set or a plurality of sets of ultrasound transmission and reception according to a switching operation.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: January 9, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tetsuya Kawagishi, Akihiro Kakee, Kuramitsu Nishihara, Hiroki Yoshiara, Atsushi Sumi, Yasuyuki Masakari
  • Patent number: 9782146
    Abstract: An ultrasonic diagnostic scanner is provided which includes a transmitting and receiving unit that transmits two kinds of ultrasonic waves with inverted phases to each of a plurality of scanning lines and receives first and second echo signals corresponding to the two kinds of ultrasonic waves from one scanning line to another, a first adder that obtains a third echo signal by adding up the first and second echo signals for each scanning line, a first signal generating unit that generates a first processed signal from the first echo signal and a second processed signal from the third echo signal, a second adder that generates a third processed signal from the first and second processed signals, an image processor that generates an ultrasonic image from the third processed signal, and an display monitor that displays the ultrasonic image.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: October 10, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tomohisa Imamura, Tetsuya Kawagishi, Fumiyasu Sakaguchi
  • Publication number: 20170156700
    Abstract: An analyzing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to detect a shear wave propagating in an object. The processing circuitry is configured to calculate an index value that indicates viscosity within the object and that is not dependent on any physical model related to viscoelasticity, by analyzing the detected shear wave.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 8, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Yasunori HONJO, Masaki WATANABE, Tetsuya KAWAGISHI
  • Patent number: 9592028
    Abstract: An ultrasonic diagnostic apparatus disclosed herein comprises an ultrasonic probe which generates an ultrasonic beam, a volume data set collecting unit which collects a plurality of volume data sets corresponding to a plurality of three-dimensional scan ranges via the ultrasonic probe, the plurality of three-dimensional scan ranges partly overlapping one another, a region of interest setting unit which sets, in accordance with a user instruction, a region of interest on a first tomogram generated from particular one of the plurality of volume data sets, a tomogram generating unit which generates the first tomogram from the particular volume data set and also generates a second tomogram associated with a section including the region of interest from another volume data set corresponding to the three-dimensional scan range including the region of interest, and a display unit which displays the first tomogram and the second tomogram.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: March 14, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tetsuya Yoshida, Tetsuya Kawagishi, Naohisa Kamiyama, Yoko Okamura, Yasuhiko Abe
  • Publication number: 20160367223
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes calculation circuitry, acquisition circuitry, determination circuitry, and scan control circuitry. The calculation circuitry calculates an indicator related to motion of biological tissue in a subject, based on echo data obtained through a pre-scan for the subject. The acquisition circuitry acquires a periodic biological signal of the subject. The determination circuitry specifies at least one tune phase in one cycle of the biological signal acquired during the pre-scan, based on the indicator, and determines a timing of a main scan for the subject, based on the specified time phase and the biological signal acquired after the pre-scan. The scan control circuitry executes the main scan at the timing determined by the determination circuitry.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 22, 2016
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Yasunori Honjo, Tetsuya Kawagishi, Akihiro Kakee, Yuko Kanayama, Masaki Watanabe