Patents by Inventor Hiroki Yoshiara

Hiroki Yoshiara 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).

  • Publication number: 20210161511
    Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes an evaluating circuit, a frequency setting circuit, and a drive circuit. The evaluating circuit is configured to analyze a received signal of a predetermined depth based on received signals of ultrasonic wave to evaluate a degree of beam penetration to a deep portion. The frequency setting circuit is configured to set a transmission frequency based on a result evaluated by the evaluating circuit. The drive circuit is configured to generate a drive pulse based on the set transmission frequency.
    Type: Application
    Filed: November 27, 2020
    Publication date: June 3, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hiroki YOSHIARA, Tomohisa IMAMURA, Akihiro KAKEE, Koichiro KURITA
  • Publication number: 20200268350
    Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes a frequency characteristic analysis circuit, a filter setting circuit, and a filter processing circuit. The frequency characteristic analysis circuit performs a frequency analysis on a first reception signal corresponding to a region of interest of each depth, and acquires a frequency characteristic of each depth. The filter setting circuit sets a reception filter of each depth based on the acquired frequency characteristic of each depth such that the acquired frequency characteristic of each depth shows a predetermined frequency characteristic. The filter processing circuit applies the set reception filter of each depth to a second reception signal corresponding to the region of interest of each depth, the second reception signal being after the first reception signal, and converts the second reception signal into a third reception signal corresponding to the region of interest of each depth.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 27, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hiroki Yoshiara, Tomohisa Imamura, Akihiro Kakee
  • Publication number: 20200077983
    Abstract: The ultrasonic diagnostic apparatus according to a present embodiment includes processing circuitry. The processing circuitry is configured to acquire a contrast image and a vascular structure image which includes the vascular structure in an image acquisition mode capable of capturing the vascular structure. The processing circuitry is configured to extract data indicating the vascular structure from the vascular structure image. The processing circuitry is configured to superimpose the data indicating the vascular structure on the contrast image to generate a superimposed image. The processing circuitry is configured to display the superimposed image on a display.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 12, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Asuka Ozawa, Hiroki Yoshiara, Takeshi Sugio, Tomio Nabatame, Takashi Masuda
  • Patent number: 10575826
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes a transmitter/receiver, an adder/subtractor and an image generating unit. The transmitter/receiver performs a first set of ultrasound transmission/reception and a second set of ultrasound transmission/reception, on a same scanning line of an imaging region of a subject administered with a contrast agent, for a plurality of sets, to output reflected wave data for the plurality of the sets, the first set of the ultrasound transmission/reception performing amplitude-modulated or amplitude- and phase-modulated ultrasound transmission transmitted a plurality of times and receiving reflected waves, and the second set of the ultrasound transmission/reception being transmission/reception whose phase modulation being different from phase modulation of the first set of the ultrasound transmission/reception. The adder/subtractor adds or subtracts the reflected wave data for the plurality of the sets.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: March 3, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Hiroki Yoshiara, Kuramitsu Nishihara, Akihiro Kakee, Tetsuya Kawagishi, Makoto Hirama
  • Publication number: 20190357874
    Abstract: An ultrasound diagnosis apparatus includes: a transmission and reception circuitry configured to perform, via an ultrasound probe, a first ultrasound scan on a first region in a subject who has a contrast agent injected and a second ultrasound scan on at least a part of a second region in the subject overlapping with the first region, the second ultrasound scan including transmitting and receiving two types of ultrasound waves of which one or both of amplitude levels and phases are different from each other; and processing circuitry configured to generate a blood flow image corresponding to one frame by implementing a Doppler method on the basis of a data sequence including reception data obtained from the first ultrasound scan performed multiple times in mutually the same position within the first region to have the second ultrasound scan performed in-between and to generate a contrast-enhanced image based on a result of the second ultrasound scan performed at least one time.
    Type: Application
    Filed: May 22, 2019
    Publication date: November 28, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hiroki YOSHIARA, Tomohisa IMAMURA, Koichiro KURITA
  • Publication number: 20190015075
    Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes a transmission/reception circuit and processing circuitry. The transmission/reception circuit is configured to repeatedly perform ultrasonic scanning of an object to which a contrast agent is administered. The processing circuitry is configured to analyze dynamics of the contrast agent in a region of interest in the object based on image data acquired by the ultrasonic scanning. The transmission/reception circuit performs the ultrasonic scanning at a frame rate or a volume rate having a value according to an analysis result of the processing circuitry.
    Type: Application
    Filed: July 13, 2018
    Publication date: January 17, 2019
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hiroki Yoshiara, Yu Igarashi
  • Patent number: 10083372
    Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires a plurality of frames representing ultrasound images starting with an initial frame in time series. The processing circuitry compares a current frame and a previous frame to the current frame for determining the similarity therebetween, and generates a reference frame based on weighting processing on the initial frame and the previous frame using results of the comparison. The processing circuitry implements tracking processing between the reference frame and the current frame.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: September 25, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Guang Li, Hiroki Yoshiara, Lingying Chen, Zhe Tang
  • Patent number: 10039525
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain the position of the boundary of a region of interest that is set in first ultrasound image data of a subject. The processing circuitry is configured to generate second ultrasound image data by assigning a pixel value to each of pixels of which a change of the brightness value between before and after a contrast enhancement is equal to or larger than a threshold value with regard to pre-contrast-enhanced image data and post-contrast-enhanced image data of the subject both of which were acquired after a treatment using a puncture needle has been performed, the assigned pixel value corresponding to the distance between the pixel and the boundary of the region of interest. The processing circuitry is configured to cause a display unit to display the second ultrasound image data.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: August 7, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hiroki Yoshiara, Yuko Kanayama, Yoshitaka Mine, Cong Yao, Go Tanaka
  • 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: 9763645
    Abstract: An ultrasound apparatus according to the present embodiments includes a receiving unit and a probe controlling unit. The receiving unit receives settings in relation to the aperture of the ultrasound probe and the region of interest of the subject with a contrast agent injected. The probe controlling unit controls the ultrasound probe based on the settings received by the receiving unit in such a manner as to transmit an ultrasound wave from the vibrator arranged in the aperture to the region of interest.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: September 19, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Hiroki Yoshiara, Naohisa Kamiyama, Tetsuya Yoshida, Yoko Okamura, Yuko Kanayama
  • Publication number: 20170124426
    Abstract: An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry acquires a plurality of frames representing ultrasound images starting with an initial frame in time series. The processing circuitry compares a current frame and a previous frame to the current frame for determining the similarity therebetween, and generates a reference frame based on weighting processing on the initial frame and the previous frame using results of the comparison. The processing circuitry implements tracking processing between the reference frame and the current frame.
    Type: Application
    Filed: October 27, 2016
    Publication date: May 4, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Guang LI, Hiroki Yoshiara, Lingying Chen, Zhe Tang
  • Patent number: 9592019
    Abstract: A medical image processing apparatus according to an embodiment includes a detection unit, a generating unit, and an associating unit. The detection unit analyzes a first piece and a second piece of image data of a breast, and detects the positions of a chest wall and a nipple in each of the pieces of image data, wherein the first piece of image data is three-dimensional medical image data and the second piece of image data is medical image data of a different type from the first piece of image data. The generating unit generates a first sectional image and a second sectional image based on the first piece and second piece of image data, respectively. The associating unit associates the positional relation of the breast in the pieces of image data so that the positions of the chest wall and the nipple match between the pieces of image data.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: March 14, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Atsuko Sugiyama, Katsuhiko Fujimoto, Yoshitaka Mine, Masahiro Kumakura, Ryota Osumi, Hiroki Yoshiara, Mariko Shibata, Toshie Maruyama
  • Publication number: 20170055956
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes image processing circuitry. The image processing circuitry acquires, based on a result of ultrasound scanning performed on a subject, blood flow information including a value that indicates a blood flow at each position within the subject and tissue property information including a value that indicates tissue properties at each position within the subject. The image processing circuitry generates a first image in which a difference in value in the blood flow information is represented by at least a difference in hue and a second image in which a difference in value in the tissue property information is represented by a difference other than the difference in hue. The image processing circuitry generates a combined image by combining the first image and the second image.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Ryota OSUMI, Tomohisa Imamura, Kuramitsu Nishihara, Hiroki Yoshiara, Hiroaki Ishikawa, Yuko Takada
  • Publication number: 20160166237
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes transmission circuitry, receiving circuitry and extracting circuitry. The transmission circuitry cause an ultrasonic probe to perform three or more times of ultrasonic wave transmissions, an ultrasonic wave to be transmitted including a center frequency component, a phase of the center frequency component being different in each transmission. The receiving circuitry generates three or more reception signals corresponding to a common reception scanning line based on a plurality of reflected wave signals, the plurality of reflected wave signals being obtained through the three or more times of ultrasonic wave transmissions. The extracting circuitry extracts a nonlinear component included in the three or more reception signals by adding up the three or more reception signals after performing a processing including phase rotation processing on two or more reception signals among the three or more reception signals.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 16, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hiroki YOSHIARA, Tetsuya KAWAGISHI, Tomohisa IMAMURA, Yasunori HONJO, Akihiro KAKEE, Yuko TAKADA
  • Publication number: 20160066888
    Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a candidate-position extracting circuitry and a position setting circuitry. The candidate-position extracting circuitry extracts a first position through comparison of a fundamental wave component between a plurality pieces of image data collected by performing ultrasonic scanning on a subject injected with a contrast agent. The candidate-position extracting circuitry also extracts a second position through comparison of a harmonic component between the pieces of image data. The position setting circuitry sets the first position or the second position as a position of a region of interest where predetermined analysis is performed in at least one image data of the pieces of image data.
    Type: Application
    Filed: September 10, 2015
    Publication date: March 10, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Cong YAO, Tetsuya Kawagishi, Yoshitaka Mine, Naoki Yoneyama, Hiroki Yoshiara
  • Patent number: 9201139
    Abstract: According to one embodiment, an ultrasonic diagnostic apparatus which comprises an ultrasonic transmission/reception unit configured to transmit ultrasonic waves to a scan area including a predetermined region throughout an analysis period, receive reflected waves from the scan area, and acquire ultrasonic data associated with the scan area for each phase in the analysis period, an analysis unit configured to generate a luminance time curve associated with at least one analysis area included in the scan area by using the ultrasonic data in each phase in the analysis period and analyze a stagnant time of the contrast medium associated with at least one analysis area based on the generated luminance time curve, an image generation unit configured to generate a stagnant time image for each phase in the analysis period, with different hues being assigned to at least one analysis area in accordance with the stagnant times.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: December 1, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Hiroki Yoshiara, Naohisa Kamiyama, Tetsuya Yoshida
  • Publication number: 20150257739
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry and controlling circuitry. The processing circuitry is configured to generate brightness transition information indicating a temporal transition of a brightness level in an analysis region that is set in an ultrasound scan region, from time-series data acquired by performing an ultrasound scan on a subject to whom a contrast agent has been administered and to obtain a parameter by normalizing reflux dynamics of the contrast agent in the analysis region with respect to time, based on the brightness transition information. The controlling circuitry is configured to cause a display to display the parameter in a format using one or both of an image and text.
    Type: Application
    Filed: May 29, 2015
    Publication date: September 17, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Cong YAO, Tetsuya Kawagishi, Yoshitaka Mine, Hiroki Yoshiara, Shintaro Niwa
  • Publication number: 20150245819
    Abstract: An ultrasound diagnostic apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain the position of the boundary of a region of interest that is set in first ultrasound image data of a subject. The processing circuitry is configured to generate second ultrasound image data by assigning a pixel value to each of pixels of which a change of the brightness value between before and after a contrast enhancement is equal to or larger than a threshold value with regard to pre-contrast-enhanced image data and post-contrast-enhanced image data of the subject both of which were acquired after a treatment using a puncture needle has been performed, the assigned pixel value corresponding to the distance between the pixel and the boundary of the region of interest. The processing circuitry is configured to cause a display unit to display the second ultrasound image data.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 3, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hiroki YOSHIARA, Yuko KANAYAMA, Yoshitaka MINE, Cong YAO, Go TANAKA
  • Publication number: 20150221091
    Abstract: A medical image processing apparatus according to an embodiment includes a detection unit, a generating unit, and an associating unit. The detection unit analyzes a first piece and a second piece of image data of a breast, and detects the positions of a chest wall and a nipple in each of the pieces of image data, wherein the first piece of image data is three-dimensional medical image data and the second piece of image data is medical image data of a different type from the first piece of image data. The generating unit generates a first sectional image and a second sectional image based on the first piece and second piece of image data, respectively. The associating unit associates the positional relation of the breast in the pieces of image data so that the positions of the chest wall and the nipple match between the pieces of image data.
    Type: Application
    Filed: February 2, 2015
    Publication date: August 6, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Atsuko SUGIYAMA, Katsuhiko Fujimoto, Yoshitaka Mine, Masahiro Kumakura, Ryota Osumi, Hiroki Yoshiara, Mariko Shibata, Toshie Maruyama
  • Publication number: 20150209006
    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: Application
    Filed: January 29, 2014
    Publication date: July 30, 2015
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Akihiro Kakee, Kuramitsu Nishihara, Hiroki Yoshiara, Atsushi Sumi, Yasuyuki Masakari