Patents by Inventor Tatsuo Maeda

Tatsuo Maeda 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: 20120327080
    Abstract: An image processing system according to an embodiment is an image processing system having a terminal device including a display unit that displays a medical image. The image processing system includes an acquiring unit and a display controller. The acquiring unit acquires a position of the terminal device relative to a predetermined target. The display controller causes the display unit to display a medical image in accordance with the relative position of the terminal device relative to the target acquired by the acquiring unit.
    Type: Application
    Filed: June 27, 2012
    Publication date: December 27, 2012
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Kazumasa ARAKITA, Shinsuke TSUKAGOSHI, Tatsuo MAEDA, Takumi HARA, Kenta MORIYASU
  • Publication number: 20120320167
    Abstract: An image processing system according to an embodiment includes a display unit capable of displaying stereoscopic images by displaying a group of parallax images and a display control unit. The display control unit displays an operation screen for receiving operations on medical image data on the display unit, displays selection information for selecting medical image data on the operation screen, and controls whether the selection information will be displayed as a stereoscopic image or a planar image depending on the content of medical image data selected by the selection information.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 20, 2012
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Shinsuke TSUKAGOSHI, Takumi HARA, Takahiro YODA, Tatsuo MAEDA, Masaharu TSUYUKI
  • Publication number: 20120313943
    Abstract: An image processing system according to an embodiment includes a first image creating unit, a second image creating unit, and a display controller. The first image creating unit creates a first image by performing a rendering processing on volume data which is three-dimensional medical image data. The second image creating unit creates a second image having a different stereoscopic effect from the first image by performing the rendering processing on the volume data. The display controller that controls to display the first image and the second image in a designated region that is designated in a display surface of a display unit and a background region other than the designated region, respectively.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinsuke TSUKAGOSHI, Go MUKUMOTO, Masao YUI, Tatsuo MAEDA, Akira ADACHI
  • Publication number: 20120121145
    Abstract: An apparatus handles a series of medical images. A time density curve generation unit generates time density curves respectively corresponding to pixels from the series of medical images. An approximation processing unit approximates a convolution between a specific time density curve of the time density curves and each of types of kinetic models to each of the time density curves upon adjustment of at least one parameter which each of the kinetic models has. A suitability index map generation unit generates types of suitability index maps respectively corresponding to the types of kinetic models based on approximation errors respectively corresponding to the pixels, which are obtained by the approximation processing unit.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Shintaro FUNABASAMA, Tatsuo MAEDA, Yasuko FUJISAWA
  • Publication number: 20120099776
    Abstract: It is a subject to reduce the number of processing steps and shorten the processing time when specifying a branch position in a tubular structure, mainly the bronchus or blood vessel. A apparatus includes a storage unit which stores volume data concerning a 3D region of a subject as a target. A tomogram generation unit generates the data of slice images respectively corresponding to slices almost perpendicular to a predetermined reference axis from volume data files. A region extraction unit extracts regions associated with a target site from the plurality of slice images by using threshold processing. A position specifying unit specifies a position on the reference axis, wherein the number of extracted regions changes at the position.
    Type: Application
    Filed: December 29, 2011
    Publication date: April 26, 2012
    Inventors: Tatsuo MAEDA, Tatsuya Kimoto
  • Publication number: 20120038426
    Abstract: There is provided a PLL frequency synthesizer including a phase comparing unit, a current pulse signal generating unit, an converting unit which converts the current pulse signal from the current pulse signal generating unit into a voltage signal, an outputting unit which outputs a signal of an oscillation frequency matching the voltage signal from the converting unit, a divider which divides an output from the outputting unit by a division ratio matching a division ratio control signal to output as the division signal, a division ratio control signal generating unit which generates the division ratio control signal based on division ratio data for fractional-N, and the phase error compensation signal generating unit which generates at least two items of phase error compensation data from the division ratio data, and generates the phase error compensation signal utilizing the at least two generated items of phase error compensation data at different timings.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 16, 2012
    Inventors: Masahisa TAMURA, Tatsuo Maeda
  • Patent number: 8102895
    Abstract: A radio transmission apparatus that uses a plurality of band groups and that transmits a signal subjected to frequency hopping between a plurality of bands in each band group at a local frequency apart from the center frequency of each band includes a local frequency generating unit that generates a local frequency lower than the center frequency of each band in a first band group in the transmission with the first band group. The local frequency generating unit generates a local frequency higher than the center frequency of each band in a second band group in the transmission with the second band group, the local frequency to be generated being the same as the local frequency generated in the transmission with the first band group.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: January 24, 2012
    Assignee: Sony Corporation
    Inventors: Tatsuo Maeda, Sachio Iida
  • Patent number: 8094775
    Abstract: An X-ray computer tomography apparatus includes an X-ray tube, a two-dimensional array type X-ray detector, a rotating mechanism, a pair of collimators, a collimator moving mechanism which separately moves the pair of collimators in a direction almost parallel to a rotation axis, a reconstruction processing unit which reconstructs image data in a reconstruction range, and a collimator control unit. The collimator control unit controls the position of each collimator in accordance with the distance between an X-ray central plane corresponding to a cone angle 0° and an end face of the reconstruction range. The collimator moving mechanism moves each of the pair of collimators in the range from the outermost position corresponding to the maximum cone angle to the innermost position offset from a position corresponding to a cone angle of nearly 0° to the opposite side.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: January 10, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasuhiro Noshi, Yasuo Saito, Manabu Hiraoka, Tatsuo Maeda
  • Patent number: 8068651
    Abstract: The medical imaging diagnosis apparatus includes: a region-of-interest setting unit configured to acquire an image of an examination target region in the body of a subject, and thus to set up, on the image, a region of interest, in which change in concentration of a contrast medium is observed; a calculator configured to calculate an average of CT values each representing the concentration of the contrast medium in the region of interest; an approximation unit configured to find an approximation for the region of interest on the basis of multiple CT values calculated by the calculator for the region of interest; and a comparison unit configured to compare a coefficient of the approximation with a value representing a setup condition beforehand stored, and to detect the timing of a definitive scan on the basis of the approximation which agrees with the setup condition within a predetermined range.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: November 29, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasunori Takase, Tatsuo Maeda
  • Publication number: 20110280366
    Abstract: An image processing apparatus and X-ray CT system, having a tracheal bifurcation area extraction part, for extracting the tracheal bifurcation area from an X-ray image and a tracheal bifurcation identification part, for identifying the tracheal bifurcation from the tracheal bifurcation area.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, Kabushiki Kaisha Toshiba
    Inventors: Tatsuo MAEDA, Manabu Hiraoka, Naoko Toyoshima
  • Patent number: 7885374
    Abstract: An X-ray computed tomography (CT) apparatus having an X-ray tube emitting an X-ray, a detector detecting X-rays transmitted through a subject to be examined, and a bed on which said subject to be examined is placed, said X-ray CT apparatus reconstructing the image of the subject to be examined from a transmission data obtained by emitting X-rays to the subject to be examined. The X-ray computed tomography (CT) apparatus further having an input part, a scan controlling part, a detecting part, a memory part, a segmentation part, a biological-signal synchronization reconstructing part, a biological-signal asynchronization reconstructing part, and a combining part.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 8, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yasuhiro Noshi, Tatsuo Maeda, Miwa Okumura, Shinsuke Tsukagoshi
  • Patent number: 7839975
    Abstract: An X-ray computed tomographic apparatus includes a gantry 100 including an X-ray tube 101 which generates X-rays and an X-ray detector 103 which detects X-rays transmitted through a subject to be examined, a reconstruction device 114 which generates tomogram data on the basis of an output from the X-ray detector, a breath detector 203 which detects a respiration waveform representing a temporal change in respiration index value associated with the subject, a regular respiration waveform generating unit 207 which generates a respiration waveform with a regular respiration cycle which originates from the detected respiration waveform, and a gantry mount display 201 which displays the generated regular respiration waveform.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: November 23, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Hitoshi Nakamura, Masaharu Tsuyuki, Tatsuo Maeda, Shan Shan Xiao
  • Publication number: 20100216507
    Abstract: There is provided a radio communication apparatus including a first radio communication unit that performs proximity communication by first radio communication, a second radio communication unit that performs the proximity communication by second radio communication via a magnetic field, a detection unit that detects the magnetic field generated in the second radio communication, and a control unit that controls radio communication by the first radio communication unit based on a detection result detected by the detection unit.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 26, 2010
    Inventor: TATSUO MAEDA
  • Publication number: 20100074394
    Abstract: An X-ray computed tomographic apparatus includes a gantry 100 including an X-ray tube 101 which generates X-rays and an X-ray detector 103 which detects X-rays transmitted through a subject to be examined, a reconstruction device 114 which generates tomogram data on the basis of an output from the X-ray detector, a breath detector 203 which detects a respiration waveform representing a temporal change in respiration index value associated with the subject, a regular respiration waveform generating unit 207 which generates a respiration waveform with a regular respiration cycle which originates from the detected respiration waveform, and a gantry mount display 201 which displays the generated regular respiration waveform.
    Type: Application
    Filed: November 25, 2009
    Publication date: March 25, 2010
    Inventors: Hitoshi NAKAMURA, Masaharu Tsuyuki, Tatsuo Maeda, Shan shan Xiao
  • Publication number: 20100054395
    Abstract: An X-ray computer tomography apparatus includes an X-ray tube, a two-dimensional array type X-ray detector, a rotating mechanism, a pair of collimators, a collimator moving mechanism which separately moves the pair of collimators in a direction almost parallel to a rotation axis, a reconstruction processing unit which reconstructs image data in a reconstruction range, and a collimator control unit. The collimator control unit controls the position of each collimator in accordance with the distance between an X-ray central plane corresponding to a cone angle 0° and an end face of the reconstruction range. The collimator moving mechanism moves each of the pair of collimators in the range from the outermost position corresponding to the maximum cone angle to the innermost position offset from a position corresponding to a cone angle of nearly 0° to the opposite side.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 4, 2010
    Inventors: Yasuhiro Noshi, Yasuo Saito, Manabu Hiraoka, Tatsuo Maeda
  • Publication number: 20090022265
    Abstract: The medical imaging diagnosis apparatus includes: a region-of-interest setting unit configured to acquire an image of an examination target region in the body of a subject, and thus to set up, on the image, a region of interest, in which change in concentration of a contrast medium is observed; a calculator configured to calculate an average of CT values each representing the concentration of the contrast medium in the region of interest; an approximation unit configured to find an approximation for the region of interest on the basis of multiple CT values calculated by the calculator for the region of interest; and a comparison unit configured to compare a coefficient of the approximation with a value representing a setup condition beforehand stored, and to detect the timing of a definitive scan on the basis of the approximation which agrees with the setup condition within a predetermined range.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 22, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Yasunori Takase, Tatsuo Maeda
  • Publication number: 20080290778
    Abstract: A fluorescent lamp including a curved glass bulb that has a layer including a phosphor layer on an inner surface, mercury and a rare gas enclosed inside, and a pair of electrodes at both ends, and when a tube inner diameter (mm) of the glass bulb is plotted on a horizontal axis of an orthogonal coordinate system and a total amount of CO2 and CO (mol %) contained in gas present inside the glass bulb is plotted on a vertical axis of the orthogonal coordinate system, the tube inner diameter and the total amount of CO2 and CO are in a predetermined area or on a boundary thereof, the predetermined area being bounded by line segments AB, BC, CD, and DA that connect a point A (1.5 mm, 0.008 mol %), a point B (4.0 mm, 0.0005 mol %), a point C (4.0 mm, 0 mol %), and a point D (1.5 mm, 0 mol %) in the stated order. As a result, a fluorescent lamp that has no illumination failure caused by snaking can be obtained even though the fluorescent lamp is in a curved shape.
    Type: Application
    Filed: May 30, 2005
    Publication date: November 27, 2008
    Inventors: Hirofumi Yamashita, Nozomu Hashimoto, Yusuke Mori, Hisashi Dejima, Tatsuo Maeda
  • Publication number: 20080273576
    Abstract: A radio transmission apparatus that uses a plurality of band groups and that transmits a signal subjected to frequency hopping between a plurality of bands in each band group at a local frequency apart from the center frequency of each band includes a local frequency generating unit that generates a local frequency lower than the center frequency of each band in a first band group in the transmission with the first band group. The local frequency generating unit generates a local frequency higher than the center frequency of each band in a second band group in the transmission with the second band group, the local frequency to be generated being the same as the local frequency generated in the transmission with the first band group.
    Type: Application
    Filed: July 1, 2008
    Publication date: November 6, 2008
    Inventors: Tatsuo MAEDA, Sachio Iida
  • Publication number: 20080089463
    Abstract: An X-ray computed tomographic apparatus includes a gantry 100 including an X-ray tube 101 which generates X-rays and an X-ray detector 103 which detects X-rays transmitted through a subject to be examined, a reconstruction device 114 which generates tomogram data on the basis of an output from the X-ray detector, a breath detector 203 which detects a respiration waveform representing a temporal change in respiration index value associated with the subject, a regular respiration waveform generating unit 207 which generates a respiration waveform with a regular respiration cycle which originates from the detected respiration waveform, and a gantry mount display 201 which displays the generated regular respiration waveform.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 17, 2008
    Inventors: Hitoshi Nakamura, Masaharu Tsuyuki, Tatsuo Maeda, Shan shan Xiao
  • Publication number: 20070217567
    Abstract: The X-ray CT apparatus that performs a scan after a pre-scan, comprising a reconstruction part reconstructing the pre-scan image of said subject to be examined from transmission data detected by said detector during said pre-scan, and also reconstructing the scan image of said subject to be examined from the transmission data detected by said detector during said scan; and a scan controlling part initiating a scan by directly changing the helical pitch of said bed from the stopped position for said pre-scan to the position toward an ending edge of the reconstruction area of the image. The scan controlling part initiates the scan at a first helical pitch by which X-rays for a predetermined number of views can be emitted at a starting edge of the reconstruction area of the image, and, after X-rays for the predetermined number of views is emitted, the scan at a second helical pitch continues.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 20, 2007
    Applicants: Kabushiki Kaisha Toshiba, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Yasuhiro Noshi, Tatsuo Maeda, Miwa Okumura, Shinsuke Tsukagoshi