Patents by Inventor Takashi Osaka
Takashi Osaka 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: 8974388Abstract: An ultrasound elasticity imaging apparatus includes an elastic data processing section which processes a received signal detected by an ultrasound probe and generates elastic frame data, a display evaluation section which evaluates a display value of the elastic frame data based on various data in the generation of the elastic frame data, a display processing section which performs image processing of the elastic frame data according to the evaluation result by the display evaluation section, and a display section which displays an elastic image based on the elastic frame data processed by the image processing section.Type: GrantFiled: February 11, 2009Date of Patent: March 10, 2015Assignee: Hitachi Medical CorporationInventors: Takashi Osaka, Takeshi Matsumura, Tetsuya Hayashi, Mitsuhiro Oshiki, Okinori Yuasa, Naoyuki Murayama, Tsuyoshi Shiina, Satoshi Tamano, Tsuyoshi Mitake
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Patent number: 8708912Abstract: Ultrasound diagnostic apparatus includes an unit 7 for forming time series tomographic images on the basis of a reflection echo signals received by ultrasound probe 2, an unit 8 for obtaining the elasticities of body tissue on the basis of the reflection echo signals and forming elasticity images on times series, an unit 9 for forming a superimposition image on time series by superposing the tomographic image on the elasticity image, an unit 43 for inputting an instruction for controlling superimposition image formation, and an unit 10 for displaying the superimposition image. The ultrasound diagnostic apparatus further includes a freezing control portion (7, 8) for outputting an image, as a frozen image, selected in response to a freezing instruction for freezing the display operation on time series of any of the tomographic image or the elasticity image input into the input unit to the superimposition image forming unit.Type: GrantFiled: November 17, 2005Date of Patent: April 29, 2014Assignee: Hitachi Medical CorporationInventors: Takashi Osaka, Takeshi Matsumura
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Patent number: 8608659Abstract: An ultrasonic imaging apparatus according to the present invention includes an ultrasonic probe (2) for receiving and transmitting ultrasonic waves from/to an object (1), ultrasound image structuring means (6) for generating an ultrasound image from a reflected echo signal received by the ultrasonic probe, elastic image structuring means (7) for obtaining a physical quantity of the elasticity of a region of the object corresponding to the ultrasound image from the reflected echo signal and generating a color elastic image, display means (9) for overlaying the ultrasound image to the color elastic image, or arranging the ultrasound image and the color elastic input means (17) for variably setting a corresponding relationship between a hue of the color elastic image and the level of the physical quantity displayed on the screen.Type: GrantFiled: November 11, 2004Date of Patent: December 17, 2013Assignee: Hitachi Medical CorporationInventors: Kouji Waki, Takashi Osaka, Mitsuaki Ito, Takeshi Matsumura, Naoyuki Murayama, Takashi Kashiwagi
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Publication number: 20120123263Abstract: Disclosed are an ultrasonic diagnostic apparatus and an ultrasonic measurement method enabling easy acquisition of elasticity information by means of a shear wave. The ultrasonic diagnostic apparatus is provided with an ultrasonic probe (4) configured to transmit/receive an ultrasonic wave to/from an object (5), a vibrator (3) configured to generate a shear wave, a transmission/reception units (2,6) configured to transmit/receive an ultrasonic wave to/from the ultrasonic probe (4), a shear wave propagation detecting unit (14) for determining the propagation position of the shear wave and the propagation time of the shear wave, a shear wave image constructing unit (16) configured to construct a shear wave image showing the relation between the propagation position and propagation time of the shear wave, and an elasticity information calculating unit (15) configured to calculate elasticity information based on the boundary of the shear wave image.Type: ApplicationFiled: July 7, 2010Publication date: May 17, 2012Applicant: HITACHI MEDICAL CORPORATIONInventors: Takashi Osaka, Tsuyoshi Mitake, Akiko Tonomura
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Patent number: 8007438Abstract: An ultrasound diagnostic apparatus includes an ultrasound probe which transmits/receives an ultrasound wave with respect to a subject to be diagnosed, an ultrasound wave transmit section which transmits an ultrasound wave for driving the ultrasound probe, a pressing section which applies an external pressure to the subject, a displacement measuring section which obtains two tomographic image data different in time series from a reflected echo signal received from the ultrasound probe and measures a displacement of each part in the subject based on the two tomographic image data, an image generating section which generates an elastic image from elasticity information based on the displacement of each part measured by the displacement measuring section, and a display section which displays the generated elastic image. Further, a pressing decision section decides whether or not the pressing operation by the pressing section is proper.Type: GrantFiled: April 15, 2008Date of Patent: August 30, 2011Assignee: Hitachi Medical CorporationInventors: Takashi Osaka, Takeshi Matsumura, Tetsuya Hayashi, Mitsuhiro Oshiki, Okinori Yuasa, Naoyuki Murayama, Tsuyoshi Shiina, Satoshi Tamano, Tsuyoshi Mitake
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Publication number: 20110098563Abstract: An ultrasonic diagnostic apparatus, an ultrasonic image display method and an ultrasonic diagnostic program by which a display mode of a tomographic image or an elasticity image can be set according to the characteristics of a biological tissue are provided. The ultrasonic diagnostic apparatus is characterized in comprising an elasticity information analyzing unit which sets a plurality of regions of interest on a tomographic image or an elasticity image and analyzes the feature amount of the elasticity information in the plurality of regions of interest; and a hue setting unit which sets the hue of the elasticity image on the basis of the feature amount.Type: ApplicationFiled: June 11, 2009Publication date: April 28, 2011Inventor: Takashi Osaka
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Patent number: 7914456Abstract: An ultrasound probe includes an ultrasound wave transmit/receive surface coming into contact with a contact surface of a subject, an ultrasound wave transmit/receive section which transmits an ultrasound wave to the subject via the ultrasound wave transmit/receive surface and the contact surface and receives an ultrasound wave reflected in the subject, and a pressing mechanism for performing a pressing operation for applying a pressure to the contact surface perpendicularly to the ultrasound wave transmit/receive surface via the ultrasound wave transmit/receive surface.Type: GrantFiled: May 31, 2004Date of Patent: March 29, 2011Assignee: Hitachi Medical CorporationInventors: Takashi Osaka, Takeshi Matsumura, Tetsuya Hayashi, Mitsuhiro Oshiki, Okinori Yuasa, Naoyuki Murayama, Tsuyoshi Shiina, Satoshi Tamano, Tsuyoshi Mitake
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Publication number: 20100324421Abstract: An ultrasonic imaging apparatus according to the present invention includes an ultrasonic probe (2) for receiving and transmitting ultrasonic waves from/to an object (1), ultrasound image structuring means (6) for generating an ultrasound image from a reflected echo signal received by the ultrasonic probe, elastic image structuring means (7) for obtaining a physical quantity of the elasticity of a region of the object corresponding to the ultrasound image from the reflected echo signal and generating a color elastic image, display means (9) for overlaying the ultrasound image to the color elastic image, or arranging the ultrasound image and the color elastic image and displaying the resultant image on a screen, and input means (17) for variably setting a corresponding relationship between a hue of the color elastic image and the level of the physical quantity displayed on the screen.Type: ApplicationFiled: August 30, 2010Publication date: December 23, 2010Inventors: Kouji WAKI, Takashi OSAKA, Mitsuaki ITO, Takeshi MATSUMURA, Naoyuki MURAYAMA, Takashi KASHIWAGI
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Publication number: 20100268084Abstract: An ultrasonic diagnostic apparatus enabling accurate measurement of elasticity information is provided. The ultrasonic diagnostic apparatus is characterized in comprising setting means configured to set a first movement reference point and a second movement reference point on a tomographic image and/or an elastic image, and measurement means configured to cause the first movement reference point and the second movement reference point to follow the pulsation of an object and to measure the length of a line segment formed by the first movement reference point and the second movement reference point, and causes display means to display the length of the line segment and elasticity information based on the strain and/or elastic modulus.Type: ApplicationFiled: October 24, 2008Publication date: October 21, 2010Inventors: Takashi Osaka, Akiko Tonomura
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Publication number: 20090292205Abstract: In an ultrasonic diagnostic apparatus comprised of an ultrasonic probe; frame data acquiring means for time sequentially acquiring a plurality of RF signal frame data in a process of change in a pressure state of a subject tissue of an object to be examined while pressing the ultrasonic probe on the object tissue; and elasticity information calculating means for deriving a pair of data from RF frame signal data, calculating each place of distortion or elasticity modulus of the object tissue, and generating a plurality of elastic frame data; elastic image construction means for adding the plurality of elasticity frame data and generating an elastic image; and display means for displaying the elastic image, the ultrasonic diagnostic apparatus is further provided with evaluation means for evaluating the reliability of the plurality of the elasticity frame data subjected to adding in accordance with the degree of pressure.Type: ApplicationFiled: July 18, 2007Publication date: November 26, 2009Inventor: Takashi Osaka
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Publication number: 20090198130Abstract: It is possible to acquire the relationship between tomography data as a luminance value of an ultrasonic diagnostic image and elasticity data on a tissue in a target local region. ROI information calculation means divides an ROI into a plurality of divided regions. Displacement amount calculation means (21) calculates an inter-frame displacement amount, adds per-region information to a boundary of the divided regions, and outputs the displacement amount data to elasticity calculation means (22). The elasticity calculation means (22) calculates elasticity data according to the displacement amount. Elasticity information analysis means (23) calculates a representative value of the elasticity data on the actual tissue and outputs address information of the region other than the actual tissue to signal analysis means (17).Type: ApplicationFiled: June 6, 2007Publication date: August 6, 2009Inventor: Takashi Osaka
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Publication number: 20090149752Abstract: An ultrasound elasticity imaging apparatus includes an elastic data processing section which processes a received signal detected by an ultrasound probe and generates elastic frame data, a display evaluation section which evaluates a display value of the elastic frame data based on various data in the generation of the elastic frame data, a display processing section which performs image processing of the elastic frame data according to the evaluation result by the display evaluation section, and a display section which displays an elastic image based on the elastic frame data processed by the image processing section.Type: ApplicationFiled: February 11, 2009Publication date: June 11, 2009Inventors: Takashi Osaka, Takeshi Matsumura, Tetsuya Hayashi, Mitsuhiro Oshiki, Okinori Yuasa, Naoyuki Murayama, Tsuyoshi Shiina, Satoshi Tamano, Tsuyoshi Mitake
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Publication number: 20090124903Abstract: An ultrasound diagnostic apparatus comprises an unit 7 for forming tomographic images on times series on the basis of a reflection echo signals received by ultrasound probe 2, an unit 8 for obtaining the elasticities of portions in the body tissue on the basis of the reflection echo signals and forming elasticity images on times series, an unit 9 for forming a superimposition image on time series by superposing the tomographic image on the elasticity image, an unit 43 for inputting an instruction for controlling the formation of the superimposition image, and an unit 10 for displaying the superimposition image. The ultrasound diagnostic apparatus further comprises a freezing control portion (7, 8) for outputting an image, as a frozen image, selected in response to a freezing instruction for freezing the display operation on time series of any of the tomographic image or the elasticity image input into the input unit to the superimposition image forming unit.Type: ApplicationFiled: November 17, 2005Publication date: May 14, 2009Inventor: Takashi OSAKA
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Publication number: 20090105589Abstract: [Problem] To select a period suitable for acquiring an elastic image in accordance with variation of the displacement amount of a moving tissue when the elastic image of the moving tissue is acquired, thereby stably acquiring an elastic image of high image quality.Type: ApplicationFiled: June 6, 2006Publication date: April 23, 2009Inventors: Takashi Osaka, Naoyuki Murayama
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Patent number: 7520855Abstract: An ultrasonographic apparatus includes: an ultrasonic probe 1 for transmitting/receiving an ultrasonic wave to/from a patient, means 2 for generating an ultrasonic transmission signal and transmitting it to the ultrasonic probe, means 3 for receiving a reflection echo signal received by the ultrasonic probe; means 4 for re-constructing a form image according to the reception signal processed by the reception processing means; means 5 for re-constructing an elasticity image according to the reception signal processed by the reception processing means; means 7 for displaying the form image and the elasticity image; means 8 for switching between the form image mode and elasticity image mode; and means 9 for performing control so as to selectively acquire the form image and the elasticity image in the measurement period of the elasticity image mode switched by the mode switching means.Type: GrantFiled: October 28, 2003Date of Patent: April 21, 2009Inventors: Satoshi Tamano, Takashi Osaka, Mitsuhiro Oshiki, Takeshi Matsumura, Tsuyoshi Shiina
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Publication number: 20090018444Abstract: An ultrasound diagnostic apparatus includes an ultrasound probe which transmits/receives an ultrasound wave with respect to a subject to be diagnosed, an ultrasound wave transmit section which transmits an ultrasound wave for driving the ultrasound probe, a pressing section which applies an external pressure to the subject, a displacement measuring section which obtains two tomographic image data different in time series from a reflected echo signal received from the ultrasound probe and measures a displacement of each part in the subject based on the two tomographic image data, an image generating section which generates an elastic image from elasticity information based on the displacement of each part measured by the displacement measuring section, and a display section which displays the generated elastic image. Further, a pressing decision section decides whether or not the pressing operation by the pressing section is proper.Type: ApplicationFiled: April 15, 2008Publication date: January 15, 2009Inventors: Takashi Osaka, Takeshi Matsumura, Tetsuya Hayashi, Mitsuhiro Oshiki, Okinori Yuasa, Naoyuki Murayama, Tsuyoshi Shiina, Satoshi Tamano, Tsuyoshi Mitake
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Publication number: 20070112270Abstract: An ultrasonic imaging apparatus according to the present invention includes an ultrasonic probe (2) for receiving and transmitting ultrasonic waves from/to an object (1), ultrasound image structuring means (6) for generating an ultrasound image from a reflected echo signal received by the ultrasonic probe, elastic image structuring means (7) for obtaining a physical quantity of the elasticity of a region of the object corresponding to the ultrasound image from the reflected echo signal and generating a color elastic image, display means (9) for overlaying the ultrasound image to the color elastic image, or arranging the ultrasound image and the color elastic input means (17) for variably setting a corresponding relationship between a hue of the color elastic image and the level of the physical quantity displayed on the screen.Type: ApplicationFiled: November 11, 2004Publication date: May 17, 2007Inventors: Kouji Waki, Takashi Osaka, Mitsuaki Ito, Takeshi Matsumura, Naoyuki Murayama, Takashi Kashiwagi
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Publication number: 20070032726Abstract: An ultrasound probe includes an ultrasound wave transmit/receive surface coming into contact with a contact surface of a subject, an ultrasound wave transmit/receive section which transmits an ultrasound wave to the subject via the ultrasound wave transmit/receive surface and the contact surface and receives an ultrasound wave reflected in the subject, and a pressing mechanism for performing a pressing operation for applying a pressure to the contact surface perpendicularly to the ultrasound wave transmit/receive surface via the ultrasound wave transmit/receive surface.Type: ApplicationFiled: May 31, 2004Publication date: February 8, 2007Inventors: Takashi Osaka, Takeshi Matsumura, Tetsuya Hayashi, Mitsuhiro Oshiki, Okinori Yuasa, Naoyuki Murayama, Tsuyoshi Shiina, Satoshi Tamano, Tsuyoshi Mitake
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Publication number: 20060058649Abstract: An ultrasonographic apparatus includes: an ultrasonic probe 1 for transmitting/receiving an ultrasonic wave to/from a patient, means 2 for generating an ultrasonic transmission signal and transmitting it to the ultrasonic probe, means 3 for receiving a reflection echo signal received by the ultrasonic probe; means 4 for re-constructing a form image according to the reception signal processed by the reception processing means; means 5 for re-constructing an elasticity image according to the reception signal processed by the reception processing means; means 7 for displaying the form image and the elasticity image; means 8 for switching between the form image mode and elasticity image mode; and means 9 for performing control so as to selectively acquire the form image and the elasticity image in the measurement period of the elasticity image mode switched by the mode switching means.Type: ApplicationFiled: October 28, 2003Publication date: March 16, 2006Inventors: Satoshi Tamano, Takashi Osaka, Mitsuhiro Oshiki, Takeshi Matsumura, Tsuyoshi Shina