Patents by Inventor Makoto Hirama

Makoto Hirama 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: 11331072
    Abstract: An ultrasound medical device and an ultrasound diagnostic imaging device are provided that allow orally-fed fluid food, etc. to pass through the esophagus of the subject. The ultrasound medical device includes a capsule-type main body configured to incorporate ultrasound transducers, so that the ultrasound transducers in the capsule-type main body, which has been inserted in a tubular body part of a subject, send ultrasound waves to the subject's interiors and receive reflected waves. The ultrasound medical device further includes a support configured to be incorporated in the capsule-type main body and to have a form of tube with a through-hole axially passing through the tube. The ultrasound transducers are arranged external to the tube.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: May 17, 2022
    Assignee: Canon Medical Systems Corporation
    Inventors: Hitoshi Yamagata, Makoto Hirama
  • Patent number: 11109844
    Abstract: An ultrasound diagnosis apparatus according to an embodiment includes an ultrasound probe and transmitter circuitry. The ultrasound probe is connected to a body through a cable and includes an ultrasound transducer element to transmit and receive an ultrasound wave. The transmitter circuitry generates transmission waveform data, generates, from the generated transmission waveform data, transmission signals that the ultrasound probe uses for transmitting ultrasound waves, and outputs the generated transmission signals to the ultrasound probe. When causing the ultrasound probe to transmit a plurality of ultrasound waves with different phases successively depending on a transmission condition, the transmitter circuitry generates transmission waveform data based on which a sum component of the ultrasound waves transmitted successively is within a certain range, by using the transmission signals detected between the cable and the ultrasound transducer element.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: September 7, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Wataru Kameishi, Makoto Hirama
  • 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
  • Patent number: 10371769
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes a static field magnet, a gradient coil, at least one radio frequency coil, a receiver and processing circuitry. The static field magnet, the gradient coil, the at least one radio frequency coil and the receiver are configured to acquire magnetic resonance signals from an object. The processing circuitry is configured to generate magnetic resonance image data based on the magnetic resonance signals. The receiver is configured to convert analog magnetic resonance signals received by the at least one radio frequency coil into digital magnetic resonance signals without a downconversion; separate the digital magnetic resonance signals into in-phase signals and quadrature-phase signals; and perform filter processing for removing noises of the in-phase signals and the quadrature-phase signals.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 6, 2019
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuyuki Soejima, Sojuro Kato, Makoto Hirama
  • 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
  • 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: 9955952
    Abstract: An ultrasonic diagnostic device includes transmission circuitry, reception circuitry, and signal processing circuitry. The transmission circuitry causes an ultrasonic probe including a plurality of elements to transmit plane waves at a plurality of different deflection angles. The reception circuitry generates reception signal groups based on reflection waves that the individual elements included in the probe receive in response to the transmission of the plane waves.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 1, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Makoto Hirama, Yasuhiko Abe, Takeshi Sato, Yasunori Honjo
  • Publication number: 20170086799
    Abstract: An ultrasound diagnosis apparatus according to an embodiment includes an ultrasound prove and transmitter circuitry. The ultrasound probe is connected to a body through a cable and includes an ultrasound transducer element to transmit and receive an ultrasound wave. The transmitter circuitry generates transmission waveform data, generates, from the generated transmission waveform data, transmission signals that the ultrasound probe uses for transmitting ultrasound waves, and outputs the generated transmission signals to the ultrasound probe. When causing the ultrasound probe to transmit a plurality of ultrasound waves with different phases successively depending on a transmission condition, the transmitter circuitry generates transmission waveform data based on which a sum component of the ultrasound waves transmitted successively is within a certain range, by using the transmission signals detected between the cable and the ultrasound transducer element.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 30, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Wataru KAMEISHI, Makoto HIRAMA
  • Patent number: 9492842
    Abstract: Provided is: a cell culture membrane, which is free from materials derived from living organisms, can easily be industrially mass-produced, exhibits superior long-term storage properties and chemical resistance, has excellent cell adhesion properties and long-term culture properties and is capable of replicating a cell adhesion morphology that is similar to that of collagen derived from living organisms and being used for conventional cell cultivation. Also provided are a cell culture substrate, and a method for manufacturing the cell culture substrate. In the present invention, as a cell adhesion layer, a polymer membrane represented by formula (I) is formed on the base of a cell culture substrate so as to have a membrane thickness equal to or greater than 0.2 ?m (in the formula, R1 and R2 represent a —(CH2)n—NH2 moiety (n is an integer of 1-10 inclusive.) or H, with at least one of R1 and R2 being a —(CH2)n—NH2 moiety. Moreover, l and m are positive integers expressing polymerization degree).
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: November 15, 2016
    Assignees: KISCO LTD., DAISANKASEI CO., LTD., The University of Tokyo
    Inventors: Yasuo Yoshimoto, Kentaro Kamimae, Yuki Tanabe, Taku Oguni, Takashi Inoue, Tsutomu Mochizuki, Makoto Hirama, Teruo Fujii, Hiroshi Kimura, Hideto Tozawa
  • Publication number: 20150327840
    Abstract: An ultrasonic diagnostic device includes transmission circuitry, reception circuitry, and signal processing circuitry. The transmission circuitry causes an ultrasonic probe including a plurality of elements to transmit plane waves at a plurality of different deflection angles. The reception circuitry generates reception signal groups based on reflection waves that the individual elements included in the probe receive in response to the transmission of the plane waves.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 19, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Makoto HIRAMA, Yasuhiko ABE, Takeshi SATO, Yasunori HONJO
  • Publication number: 20150324957
    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: Application
    Filed: May 12, 2015
    Publication date: November 12, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasunori HONJO, Yasuhiko Abe, Tetsuya Kawagishi, Akihiro Kakee, Takeshi Sato, Makoto Hirama
  • Publication number: 20150320398
    Abstract: An ultrasonic diagnostic apparatus includes reception circuitry, signal processing circuitry, and generating circuitry. The reception circuitry outputs a plurality of reception signals corresponding to respective reception scanning lines for each transmission and reception of an ultrasonic wave by an ultrasonic probe. The signal processing circuitry executes a weighting process and a phase correction process according to the position of each reception scanning line on at least one of the reception signals and a plurality of signals based on the reception signals, generates the processed signals for each reception scanning line, and outputs a plurality of composite signals using the processed signals generated based on the transmission and reception of the ultrasonic waves before and after changing the sound field of the transmitted ultrasonic wave, and before and after changing the position of the reception scanning lines.
    Type: Application
    Filed: May 7, 2015
    Publication date: November 12, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasunori HONJO, Makoto HIRAMA, Akihiro KAKEE, Kuramitsu NISHIHARA
  • Publication number: 20150276910
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes a static field magnet, a gradient coil, at least one radio frequency coil, a receiver and processing circuitry. The static field magnet, the gradient coil, the at least one radio frequency coil and the receiver are configured to acquire magnetic resonance signals from an object. The processing circuitry is configured to generate magnetic resonance image data based on the magnetic resonance signals. The receiver is configured to convert analog magnetic resonance signals received by the at least one radio frequency coil into digital magnetic resonance signals without a downconversion; separate the digital magnetic resonance signals into in-phase signals and quadrature-phase signals; and perform filter processing for removing noises of the in-phase signals and the quadrature-phase signals.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Inventors: Kazuyuki SOEJIMA, Sojuro KATO, Makoto HIRAMA
  • Publication number: 20150223778
    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: Application
    Filed: February 3, 2015
    Publication date: August 13, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasunori HONJO, Yasuhiko Abe, Tetsuya Kawagishi, Makoto Hirama, Takeshi Sato
  • Publication number: 20150141829
    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: Application
    Filed: October 30, 2014
    Publication date: May 21, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Takeshi FUKASAWA, Tetsuya KAWAGISHI, Akihiro KAKEE, Makoto HIRAMA
  • Publication number: 20150087985
    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: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hiroki YOSHIARA, Kuramitsu NISHIHARA, Akihiro KAKEE, Tetsuya KAWAGISHI, Makoto HIRAMA
  • Publication number: 20150018677
    Abstract: An ultrasound diagnosis apparatus includes a transmitter/receiver, a signal processor, and an image generator. The transmitter/receiver transmits, at least once in each scanning line, a first ultrasound pulse and a second ultrasound pulse whose amplitude corresponds to amplitude of the first ultrasound pulse modulated at a given ratio and acquires a received-signal group consisting of multiple received signals. The signal processor acquires, on the basis of a coefficient that reduces the energy of a first composite signal that is obtained by combining, in accordance with the given ratio, multiple received signals contained in the first received signal group acquired by the transmitter/receiver, a second composite signal by combining multiple received signals contained in a second received signal group that is acquired by the transmitter/receiver and that is different from the first received signal group. The image generator generates an ultrasound image based on the second composite signal.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 15, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hiroki YOSHIARA, Makoto Hirama, Tetsuya Yoshida, Akihiro Kakee, Tetsuya Kawagishi, Hiroyuki Shikata
  • Patent number: 8932225
    Abstract: An ultrasonic diagnostic apparatus comprises a first reception echo obtaining unit, a second reception echo obtaining unit, a reception echo combining unit, and an image generating unit. The first reception echo obtaining unit transmits a plurality of ultrasonic pulses having frequency spectra different from one another to an object, and obtains each of reception echoes corresponding to the plurality of ultrasonic pulses. The second reception echo obtaining unit transmits an ultrasonic pulse having the same frequency component characteristics as an combined pulse obtained by combining the plurality of ultrasonic pulses, and to obtain an reception echo. The reception echo combining unit combines the reception echoes obtained by the first reception echo obtaining unit and the reception echo obtained by the second reception echo obtaining unit to generate a combined signal. The image generating unit generates an image of echoes reflected from the object on the basis of the combined signal.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: January 13, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tetsuya Kawagishi, Hiroyuki Ohuchi, Takeshi Sato, Makoto Hirama, Tomohisa Imamura
  • Publication number: 20140276079
    Abstract: An ultrasound medical device and an ultrasound diagnostic imaging device are provided that allow orally-fed fluid food, etc. to pass through the esophagus of the subject. The ultrasound medical device of the embodiment comprises a capsule-type main body configured to incorporate ultrasound transducers, so that the ultrasound transducers in the capsule-type main body, which has been inserted in a tubular body part of a subject, send ultrasound waves to the subject's interiors and receive reflected waves. The ultrasound medical device further comprises a support configured to be incorporated in the capsule-type main body and to have a form of tube with a through-hole axially passing through the tube, and the ultrasound transducers are arranged external to the tube.
    Type: Application
    Filed: May 29, 2014
    Publication date: September 18, 2014
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hitoshi YAMAGATA, Makoto HIRAMA