Patents by Inventor Yoshitaka Mine

Yoshitaka Mine 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: 20080193004
    Abstract: In the image acquisition mode, desired past images are registered in an image table. A past image selected from the past images registered in the table is displayed as a reference image together with a live image in a predetermined form. Selecting another image registered in the image table at an arbitrary timing will display another past image upon replacing the reference image.
    Type: Application
    Filed: January 29, 2008
    Publication date: August 14, 2008
    Inventor: Yoshitaka Mine
  • Publication number: 20070282203
    Abstract: There is provided an ultrasonic wave diagnosis instrument. The ultrasonic wave Doppler diagnosis instrument transmits an ultrasonic continuous wave in a range direction and receives a reflective wave of the ultrasonic continuous wave. The ultrasonic wave Doppler diagnosis instrument includes: a modulation unit that subjects the ultrasonic continuous wave to frequency modulation such that a phase is varied in accordance with the distance of the range direction; a demodulation unit that demodulates the reflective wave for each range of the range direction while interlocking with the frequency modulation, and generates a reception signal in the range in a separated state; and a presentation unit that presents information by using a signal of a Doppler component based on the reception signal.
    Type: Application
    Filed: October 19, 2005
    Publication date: December 6, 2007
    Applicants: Kabushiki Kaisha Toshiba, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Tatsuro Baba, Yasuo Miyajima, Takeshi Sato, Tetsuya Kawagishi, Yasutsugu Seo, Yoshitaka Mine
  • Patent number: 7044914
    Abstract: An ultrasonic diagnosis apparatus and method wherein both imaging of a contrast effect and imaging of a tissue appearance before and after inflow of a contrast medium can be realized on condition that low-power transmission and a high frame rate are maintained. The ultrasonic diagnostic apparatus includes a transmission/reception unit for transmitting subject ultrasonic waves with a band substantially centered at a fundamental frequency and generating a received signal based on an ultrasonic echo from the subject, a harmonic unit for extracting a signal of a harmonic component of the fundamental frequency included in the received signal and extracting a signal of the fundamental component with the band substantially centered the fundamental frequency included in the received signal, and a display unit for generating a display image based on the extracted harmonic and fundamental components.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: May 16, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine, Koichiro Kurita, Masamichi Oyanagi
  • Publication number: 20060086187
    Abstract: An ultrasonic diagnosis apparatus and method wherein both imaging of a contrast effect and imaging of a tissue appearance before and after inflow of a contrast medium can be realized on condition that low-power transmission and a high frame rate are maintained. The ultrasonic diagnostic apparatus includes a transmission/reception unit for transmitting subject ultrasonic waves with a band substantially centered at a fundamental frequency and generating a received signal based on an ultrasonic echo from the subject, a harmonic unit for extracting a signal of a harmonic component of the fundamental frequency included in the received signal and extracting a signal of the fundamental component with the band substantially centered the fundamental frequency included in the received signal, and a display unit for generating a display image based on the extracted harmonic and fundamental components.
    Type: Application
    Filed: December 8, 2005
    Publication date: April 27, 2006
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine, Koichiro Kurita, Masamichi Oyanagi
  • Patent number: 6899679
    Abstract: An ultrasonic diagnostic apparatus transmits ultrasonic pulses relevant to each scanning line twice, for example, while changing a center frequency of a bandwidth; acquires an electrical receiving signal that corresponds to an ultrasonic echo for such each transmission; applies filter processing with characteristics in accordance with a bandwidth of a harmonic component of a respective one of two receiving signals received for each scanning line; synthesizes the thus processed two receiving signals; and generates/displays an image by using the synthesized receiving signal. In this manner, the resolution and signal intensity in a depth direction is improved by broadening the bandwidth of a harmonic component provided for image generation, and a harmonic image having an occurrence of a motion artifact restrained is provided.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: May 31, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine
  • Publication number: 20050090742
    Abstract: Ultrasonic diagnostic equipment is equipped with an ultrasonic probe that transmits/receives ultrasound to/from an examined body, a probe position sensor that detects the position and the direction of the ultrasonic probe, an image generator that generates image data based upon the output of the ultrasonic probe, a probe position sensor that detects the position and the direction of a puncture probe inserted into the examined body, a display image generator that generates the data of a display image in which the end position of the puncture probe is fixed to a specific position in an image display area according to the position and the direction of the ultrasonic probe and the position and the direction of the puncture probe based upon the image data and a display for displaying the display image in the image display area.
    Type: Application
    Filed: August 18, 2004
    Publication date: April 28, 2005
    Inventors: Yoshitaka Mine, Hitoshi Yamagata
  • Patent number: 6705996
    Abstract: An ultrasonic diagnostic apparatus includes an ultrasonic probe, a transmitter for transmitting an ultrasonic wave pulse having peaks at fundamental frequencys, and a receiver for receiving an echo signal corresponding to the ultrasonic wave pulse. The echo signal contains a difference frequency component as well as a fundamental frequency component centered on a fundamental frequency. A difference frequency component is extracted by attenuating the fundamental frequency component of the echo signal. Ultrasonic image data is generated on the basis of the extracted difference frequency component.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: March 16, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine
  • Patent number: 6663565
    Abstract: A transmitting/receiving unit transmits an ultrasound wave to an object at a first rate in accordance with a first code, transmit an ultrasound wave to the object at a second rate in accordance with a second code complementary to the first code, and receives the first and second reception signals. The first and second reception signals are convoluted in the second and first codes respectively. The phase difference between the two signals represents the motion of the tissue of the object between the first and second rates. The first or second reception signal is compensated on the basis of the phase difference. The compensated first and second reception signals are convoluted in the first and second codes respectively. The two signals are added to generate a third reception signal. Image data is generated on the basis of the third reception signal.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: December 16, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Takeshi Sato, Yoshitaka Mine
  • Patent number: 6635018
    Abstract: An ultrasonic diagnosis apparatus sets transmission conditions that are different depending on a scanning direction so that a transmission sound field in a scanning region is uniform in a scanning of ultrasonic beams in one frame; transmits ultrasonic beams to a subject under the thus set transmission conditions; and samples a harmonics component from a ultrasonic echo signal reflected from a subject of the thus transmitted ultrasonic beams, thereby obtaining a harmonics ultrasonic image of the subject. According to this ultrasonic diagnosis apparatus, in the case of harmonics imaging as well, an entirely uniform image quality with less non-uniformity is achieved, and information useful for diagnosis can be provided on a clinical application site.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: October 21, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Naohisa Kamiyama, Yoshitaka Mine
  • Patent number: 6626833
    Abstract: An ultrasonic diagnosis apparatus has an ultrasonic probe having a plurality of arrayed transducer elements, a transmitting beam former for generating driving signals for driving transducer elements, and a receiving beam former for generating receiving signals based on echo signals received by transducer elements. The transmitting beam former generates driving signals so that phases of ultrasonic waves generated from transducer elements are aligned at multiple focal points. An image processor extracts harmonic components from receiving signals of ultrasonic waves having multiple focal points, and generates ultrasonic image data based on the harmonic components.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: September 30, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine
  • Publication number: 20030176792
    Abstract: An ultrasonic diagnosis apparatus and method wherein both imaging of a contrast effect and imaging of a tissue appearance before and after inflow of a contrast medium can be realized on condition that low-power transmission and a high frame rate are maintained. The ultrasonic diagnostic apparatus includes a transmission/reception unit for transmitting subject ultrasonic waves with a band substantially centered at a fundamental frequency and generating a received signal based on an ultrasonic echo from the subject, a harmonic unit for extracting a signal of a harmonic component of the fundamental frequency included in the received signal and extracting a signal of the fundamental component with the band substantially centered the fundamental frequency included in the received signal, and a display unit for generating a display image based on the extracted harmonic and fundamental components.
    Type: Application
    Filed: February 7, 2003
    Publication date: September 18, 2003
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine, Koichiro Kurita, Masamichi Oyanagi
  • Publication number: 20030060712
    Abstract: An ultrasonic diagnostic apparatus transmits ultrasonic pulses relevant to each scanning line twice, for example, while changing a center frequency of a bandwidth; acquires an electrical receiving signal that corresponds to an ultrasonic echo for such each transmission; applies filter processing with characteristics in accordance with a bandwidth of a harmonic component of a respective one of two receiving signals received for each scanning line; synthesizes the thus processed two receiving signals; and generates/displays an image by using the synthesized receiving signal. In this manner, the resolution and signal intensity in a depth direction is improved by broadening the bandwidth of a harmonic component provided for image generation, and a harmonic image having an occurrence of a motion artifact restrained is provided.
    Type: Application
    Filed: July 26, 2001
    Publication date: March 27, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine
  • Publication number: 20030018259
    Abstract: A transmitting/receiving unit transmits an ultrasound wave to an object at a first rate in accordance with a first code, transmit an ultrasound wave to the object at a second rate in accordance with a second code complementary to the first code, and receives the first and second reception signals. The first and second reception signals are convoluted in the second and first codes respectively. The phase difference between the two signals represents the motion of the tissue of the object between the first and second rates. The first or second reception signal is compensated on the basis of the phase difference. The compensated first and second reception signals are convoluted in the first and second codes respectively. The two signals are added to generate a third reception signal. Image data is generated on the basis of the third reception signal.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 23, 2003
    Inventors: Tetsuya Kawagishi, Takeshi Sato, Yoshitaka Mine
  • Patent number: 6508766
    Abstract: An ultrasound diagnosis apparatus includes an ultrasound probe and a beam-former configured to scan an object to be examined with ultrasound waves through the ultrasound probe. A B-mode processor generates B-mode image data on the basis of a reception signal output from the beam-former. A power Doppler processor generates power Doppler data on the basis of the reception signal output from the beam-former. The power Doppler data is generated on the basis of the reception signal acquired under transmission conditions that the burst wave number is equal or substantially equal to that for the B-mode data, and the ensemble size is set to one of 2 to 10. The B-mode image data and power Doppler data are partly synthesized.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: January 21, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Sato, Masamichi Oyanagi, Yoshitaka Mine
  • Patent number: 6506158
    Abstract: An ultrasonic diagnosis apparatus includes an ultrasonic probe. A transmitter supplies a transmission pulse to the ultrasonic probe to repeatedly transmit an ultrasonic wave to each of a plurality of scanning lines. A receiver receives echoes of the ultrasonic waves through the ultrasonic probe and obtaining a plurality of received signals for each of the plurality of scanning lines. A displacement estimating means estimates a relative change accompanying a tissue motion between received signals associated with each of scanning lines. A displacement correcting means corrects the received signals in accordance with the change detected by the displacement estimating means. A harmonic component extracting means extracts a harmonic component from the received signals corrected by the displacement correcting means. A display means generates an ultrasonic image on the basis of the harmonic component extracted by the harmonic component extracting means. A monitor displays the image generated by the display means.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: January 14, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Kawagishi, Ryoichi Kanda, Yoshitaka Mine
  • Publication number: 20020147398
    Abstract: An ultrasonic diagnostic apparatus includes an ultrasonic probe, a transmitter for transmitting an ultrasonic wave pulse having peaks at fundamental frequencys, and a receiver for receiving an echo signal corresponding to the ultrasonic wave pulse. The echo signal contains a difference frequency component as well as a fundamental frequency component centered on a fundamental frequency. A difference frequency component is extracted by attenuating the fundamental frequency component of the echo signal. Ultrasonic image data is generated on the basis of the extracted difference frequency component.
    Type: Application
    Filed: April 8, 2002
    Publication date: October 10, 2002
    Inventors: Tetsuya Kawagishi, Yoshitaka Mine
  • Patent number: 6450961
    Abstract: A diagnostic ultrasound apparatus is provided for obtaining an image of an object into which an ultrasound contrast agent is injected. The apparatus has a transducer 1 for transmitting and receiving an ultrasound wave to and from the object and transmitting means (2, 81, 83) transmitting an ultrasound pulse into the object by driving the transducer under a first transmitting condition exerting a given destruction capability on the ultrasound contrast agent and a second transmitting condition having a destruction capability lower than that of the first condition. First image producing (3, 5) receive an ultrasound echo of the ultrasound pulse transmitted under the first transmitting condition and produce a first color-displayed image based on phase displacement information about the ultrasound echo. Additionally, second image producing means (3, 4) receive an ultrasound echo of the transmitted ultrasound pulse and produce a second image based on amplitude information about the ultrasound echo.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: September 17, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Eiichi Shiki, Yoshitaka Mine
  • Patent number: 6419632
    Abstract: In a high-resolution flow mode, a diagnostic ultrasound apparatus and a diagnostic ultrasound method that provide an image of blood flow or perfusion is provided with higher sensitivity and high resolution, which makes it possible to precisely observe the presence of fine blood vessels. In this apparatus, by scanning means (81 to 83), with a ultrasound pulse having a wideband frequency characteristic transmitting at least two times in the same direction within an object, a cross section to be imaged therein is scanned to obtain an echo signal at each time of transmission. By processing means 84, highpass filtering or differential processing is performed with rows of data in the time axis direction of an echo signal acquired at each sample location in the cross section, so that signals from blood flow are extracted. By producing means 85, the processed signals are produced into data of luminance or power.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: July 16, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Eiichi Shiki, Yoshitaka Mine
  • Patent number: 6374674
    Abstract: An ultrasonic diagnostic apparatus wherein a three dimensional space is scanned by ultrasonic beams and echo signals are received simultaneously in parallel to produce ultrasonic information. During operation, transmitting/receiving conditions are selected from a plurality of transmitting/receiving conditions. Operation is then switched at a predetermined period between the selected transmitting/receiving conditions so that the three dimensional space is scanned by ultrasonic beams and echo signals are alternately received, at the predetermined period, under the selected transmitting/receiving conditions. Image information for each selected transmitting/receiving condition is obtained and respective ultrasonic images corresponding to each transmitting/receiving condition are simultaneously displayed.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: April 23, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yoshitaka Mine
  • Publication number: 20020022780
    Abstract: An ultrasonic diagnosis apparatus sets transmission conditions that are different depending on a scanning direction so that a transmission sound field in a scanning region is uniform in a scanning of ultrasonic beams in one frame; transmits ultrasonic beams to a subject under the thus set transmission conditions; and samples a harmonics component from a ultrasonic echo signal reflected from a subject of the thus transmitted ultrasonic beams, thereby obtaining a harmonics ultrasonic image of the subject. According to this ultrasonic diagnosis apparatus, in the case of harmonics imaging as well, an entirely uniform image quality with its less non-uniformity is achieved, and information useful for diagnosis can be provided on a clinical application site.
    Type: Application
    Filed: May 22, 2001
    Publication date: February 21, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya Kawagishi, Naohisa Kamiyama, Yoshitaka Mine