Patents by Inventor Akitoshi Katsumata

Akitoshi Katsumata 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: 20180303409
    Abstract: Provided is an apparatus for measuring the thickness, roughness, and morphology index of the mandibular cortical bone using a dental panorama image to assist in the diagnosis of osteoporosis, wherein the thickness, roughness, and morphological index of the cortical bone is measured more accurately and the diagnosis of osteoporosis can be supported more accurately. An osteoporosis diagnostic support apparatus, wherein the apparatus has a contour extraction unit adapted to extract a mandibular contour from an image of a mandibular cortical bone photographed by a photographic apparatus adapted to photograph the mandibular cortical bone and surroundings thereof, a line segment extraction unit adapted to extract line segments from the image of the mandibular cortical bone photographed by the photographic apparatus; and a cortical bone thickness calculation unit adapted to calculate a thickness of the cortical bone based on the extracted mandibular contour and line segments.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Applicants: Media Co., Ltd., Gifu University
    Inventors: Hironobu TSUJI, Yosuke TSUJI, Tatsuro HAYASHI, Hiroshi FUJITA, Takeshi HARA, Chisako MURAMATSU, Kazuki HORIBA, Akitoshi KATSUMATA
  • Patent number: 10004448
    Abstract: Provided is an apparatus for measuring the thickness, roughness, and morphology index of the mandibular cortical bone using a dental panorama image to assist in the diagnosis of osteoporosis, wherein the thickness, roughness, and morphological index of the cortical bone is measured more accurately and the diagnosis of osteoporosis can be supported more accurately. An osteoporosis diagnostic support apparatus, wherein the apparatus has a contour extraction unit adapted to extract a mandibular contour from an image of a mandibular cortical bone photographed by a photographic apparatus adapted to photograph the mandibular cortical bone and surroundings thereof, a line segment extraction unit adapted to extract line segments from the image of the mandibular cortical bone photographed by the photographic apparatus; and a cortical bone thickness calculation unit adapted to calculate a thickness of the cortical bone based on the extracted mandibular contour and line segments.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: June 26, 2018
    Assignee: Media Co., Ltd.
    Inventors: Hironobu Tsuji, Yosuke Tsuji, Tatsuro Hayashi, Hiroshi Fujita, Takeshi Hara, Chisako Muramatsu, Kazuki Horiba, Akitoshi Katsumata
  • Patent number: 9710907
    Abstract: A diagnosis support system includes a diagnosis support computer that includes a model data acquisition unit configured to obtain a plurality of mandible model data, a contour model creation unit configured to create contour model data from the mandible model data, a contour database storage unit configured to construct a contour model database from the contour model data, a diagnosis image data receiving unit configured to receive an input of diagnosis image data of an examinee, an edge extraction unit configured to extract edge data from the diagnosis image data, a similar model searching unit configured to search contour model data based on the edge data, a position judgment unit and an image quality judgment unit configured to judge an imaging position and an image quality based on imaging information, respectively, and a diagnosis support information provision unit configured to provide diagnosis support information based on provider information.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: July 18, 2017
    Assignees: Gifu University, MEDIA CO., LTD.
    Inventors: Hiroshi Fujita, Takeshi Hara, Akitoshi Katsumata, Tatsuro Hayashi
  • Patent number: 9668705
    Abstract: An X-ray tomographic imaging apparatus includes an X-ray and a direct conversion type of detector. The X-ray tube and the detector are supported by the support means so as to be rotatable along curved orbits mutually independently. Under instructions from a computer, scans and image reconstruction are performed. The X-ray tube and the detector are moved along the orbits mutually independently so that X-ray beams are always transmitted through a desired tomographic plane of an object at desired angles. Acquired frame data are used to produce a panoramic image of the plane, while the frame data and the panoramic image are used to produce a tomographic image in which structural components of the object are optically focused and distortions caused due to differences in X-ray paths are suppressed. The apparatus can be used as devices for dental, medical diagnosis and nondestructive inspection, and can have a CT imaging function.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: June 6, 2017
    Assignee: TAKARA TELESYSTEMS CORP.
    Inventors: Tsutomu Yamakawa, Masahiro Tsujita, Akitoshi Katsumata, Koichi Ogawa, Hisatoshi Aoki
  • Patent number: 9629590
    Abstract: There is provided a panoramic imaging apparatus which serves as a radiation imaging apparatus. The panoramic imaging apparatus includes an X-ray tube radiating an X-ray as a radiation, a detector outputting digital-quantity frame data corresponding to an incident X-ray, and moving means moving the pair of X-ray tube and the detector relatively to an object. The apparatus further includes means for acquiring the frame data from the detector during movement of the X-ray tube and the detector, and means for optimally focusing a portion being imaged of the object using the acquired data and producing a three-dimensional optimally focused image in which the real size and shape of the portion being imaged are reflected.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: April 25, 2017
    Assignee: TAKARA TELESYSTEMS CORP.
    Inventors: Akitoshi Katsumata, Koichi Ogawa, Tsutomu Yamakawa, Masahiro Tsujita, Tatsuya Nagano, Kazuhide Kitou
  • Publication number: 20160262686
    Abstract: Provided is an apparatus for measuring the thickness, roughness, and morphology index of the mandibular cortical bone using a dental panorama image to assist in the diagnosis of osteoporosis, wherein the thickness, roughness, and morphological index of the cortical bone is measured more accurately and the diagnosis of osteoporosis can be supported more accurately. An osteoporosis diagnostic support apparatus, wherein the apparatus has a contour extraction unit adapted to extract a mandibular contour from an image of a mandibular cortical bone photographed by a photographic apparatus adapted to photograph the mandibular cortical bone and surroundings thereof, a line segment extraction unit adapted to extract line segments from the image of the mandibular cortical bone photographed by the photographic apparatus; and a cortical bone thickness calculation unit adapted to calculate a thickness of the cortical bone based on the extracted mandibular contour and line segments.
    Type: Application
    Filed: May 23, 2016
    Publication date: September 15, 2016
    Applicants: Media Co., Ltd., Gifu University
    Inventors: Hironobu TSUJI, Yosuke TSUJI, Tatsuro HAYASHI, Hiroshi FUJITA, Takeshi HARA, Chisako MURAMATSU, Kazuki HORIBA, Akitoshi KATSUMATA
  • Patent number: 9408579
    Abstract: In the imaging space provided by a panoramic imaging apparatus, a phantom is arranged. The phantom is located to a predetermined tomographic plane and includes markers which image known positional information with an X-ray beam. The X-ray beam from an X-ray source is acquired as X-ray transmission data by a detector, and a panoramic image is produced using the data. Based on known positional information of the markers and information of marker positions in the panoramic image, distance information (Rs, Rd) between the X-ray tube and the detector and height information (B1) of the X-ray tube to the detector are calculated. From this calculated results and the acquired data, parameters (?x/?Fi, ?, ??/?Fi, D, A, CX, CY) defining positional relationships among the X-ray tube, the detector, and the tomographic plane are calculated such that amounts of changes in the position connecting the X-ray tube and the detector are considered in the parameters.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: August 9, 2016
    Assignee: TAKARA TELESYSTEMS CORP.
    Inventors: Tsutomu Yamakawa, Koichi Ogawa, Akitoshi Katsumata, Masahiro Tsujita, Hideyuki Nagaoka
  • Publication number: 20160015332
    Abstract: There is provided a panoramic imaging apparatus which serves as a radiation imaging apparatus. The panoramic imaging apparatus includes an X-ray tube radiating an X-ray as a radiation, a detector outputting digital-quantity frame data corresponding to an incident X-ray, and moving means moving the pair of X-ray tube and the detector relatively to an object. The apparatus further includes means for acquiring the frame data from the detector during movement of the X-ray tube and the detector, and means for optimally focusing a portion being imaged of the object using the acquired data and producing a three-dimensional optimally focused image in which the real size and shape of the portion being imaged are reflected.
    Type: Application
    Filed: July 13, 2015
    Publication date: January 21, 2016
    Inventors: Akitoshi KATSUMATA, Koichi OGAWA, Tsutomu YAMAKAWA, Masahiro TSUJITA, Tatsuya NAGANO, Kazuhide KITOU
  • Publication number: 20150305696
    Abstract: An X-ray tomographic imaging apparatus includes an X-ray and a direct conversion type of detector. The X-ray tube and the detector are supported by the support means so as to be rotatable along curved orbits mutually independently. Under instructions from a computer, scans and image reconstruction are performed. The X-ray tube and the detector are moved along the orbits mutually independently so that X-ray beams are always transmitted through a desired tomographic plane of an object at desired angles. Acquired frame data are used to produce a panoramic image of the plane, while the frame data and the panoramic image are used to produce a tomographic image in which structural components of the object are optically focused and distortions caused due to differences in X-ray paths are suppressed. The apparatus can be used as devices for dental, medical diagnosis and nondestructive inspection, and can have a CT imaging function.
    Type: Application
    Filed: July 13, 2011
    Publication date: October 29, 2015
    Applicant: TELESYSTEMS CO., LTD.
    Inventors: Tsutomu YAMAKAWA, Masahiro TSUJITA, Akitoshi KATSUMATA, Koichi OGAWA, Hisatoshi AOKI
  • Patent number: 9113799
    Abstract: There is provided a panoramic imaging apparatus which serves as a radiation imaging apparatus. The panoramic imaging apparatus includes an X-ray tube radiating an X-ray as a radiation, a detector outputting digital-quantity frame data corresponding to an incident X-ray, and moving means moving the pair of X-ray tube and the detector relatively to an object. The apparatus further includes means for acquiring the frame data from the detector during movement of the X-ray tube and the detector, and means for optimally focusing a portion being imaged of the object using the acquired data and producing a three-dimensional optimally focused image in which the real size and shape of the portion being imaged are reflected.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: August 25, 2015
    Assignee: Telesystems Co., Ltd.
    Inventors: Akitoshi Katsumata, Koichi Ogawa, Tsutomu Yamakawa, Masahiro Tsujita, Tatsuya Nagano, Kazuhide Kitou
  • Patent number: 9084568
    Abstract: A radiation imaging apparatus is provided. The apparatus has moving means moving a pair of an X-ray tube and a detector relatively to an object. The apparatus further has means which acquire digital frame data outputted from the detector. The frame data are acquired from the same portion being imaged of the same object at different time points. The apparatus has means which use the frame data to produce a plurality of three-dimensional optimally focused images at the respective time points, an actual position and shape of the portion being imaged being reflected in the images, and means which estimate changes of the plural three-dimensional optimally focused images.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: July 21, 2015
    Assignee: Telesystems Co., Ltd.
    Inventors: Akitoshi Katsumata, Koichi Ogawa, Tsutomu Yamakawa, Masahiro Tsujita, Tatsuya Nagano, Kazuhide Kitou
  • Patent number: 8891845
    Abstract: A panoramic imaging apparatus functionally includes an image processing apparatus. In this apparatus, two planar images are produced, which are subjected to registration. A registration process is applied to overall areas of two planar images based on curves decided from positions designated on the two planar images respectively. The positions on each of the planar images are aligned along a straight line, both straight lines corresponding to each other in a horizontal direction, and a scale factor for the registration is changed position by position on the straight lines. One of the two planar images is searched for a match of each local region of the other planar image, to any of regions of the one planar image, and images of the matched regions are re-produced to produce a planar image. The difference information is calculated between the planar images.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 18, 2014
    Inventors: Koichi Ogawa, Akitoshi Katsumata, Tsutomu Yamakawa, Hideyuki Nagaoka, Tatsuya Nagano
  • Publication number: 20140234796
    Abstract: The method for periodontal disease measurement of the present invention includes: using a plurality of cross-sectional images provided by x-ray CT images of teeth and periodontal tissues to detect a contour of each tooth in each cross-sectional image, detect a dentition, and provide a dental formula; detecting the positions of the root apex, the alveolar crest, and the crown of each tooth from the detected tooth contour data; calculating at least one of a distance indicator, a volume indicator, a surface area indicator, a first moment indicator, a center-of-gravity indicator, and an alveolar bone indicator from the detected tooth contour data, and the position data of the root apex, the alveolar crest, and the crown of the tooth; and measuring the progression of periodontal disease based on at least one calculated indicator.
    Type: Application
    Filed: July 12, 2012
    Publication date: August 21, 2014
    Applicant: MEDIA CO., LTD.
    Inventors: Hironobu Tsuji, Akitoshi Katsumata, Shinya Saito, Vladimir Volevich, Kazuhumi Suzuki
  • Publication number: 20140193768
    Abstract: A panoramic imaging apparatus functionally includes an image processing apparatus. In this apparatus, two planar images are produced, which are subjected to registration. A registration process is applied to overall areas of two planar images based on curves decided from positions designated on the two planar images respectively. The positions on each of the planar images are aligned along a straight line, both straight lines corresponding to each other in a horizontal direction, and a scale factor for the registration is changed position by position on the straight lines. One of the two planar images is searched for a match of each local region of the other planar image, to any of regions of the one planar image, and images of the matched regions are re-produced to produce a planar image. The difference information is calculated between the planar images.
    Type: Application
    Filed: September 28, 2012
    Publication date: July 10, 2014
    Inventors: Koichi Ogawa, Akitoshi Katsumata, Tsutomu Yamakawa, Hideyuki Nagaoka, Tatsuya Nagano
  • Publication number: 20140009573
    Abstract: A diagnosis support system includes a diagnosis support computer that includes a model data acquisition unit configured to obtain a plurality of mandible model data, a contour model creation unit configured to create contour model data from the mandible model data, a contour database storage unit configured to construct a contour model database from the contour model data, a diagnosis image data receiving unit configured to receive an input of diagnosis image data of an examinee, an edge extraction unit configured to extract edge data from the diagnosis image data, a similar model searching unit configured to search contour model data based on the edge data, a position judgment unit and an image quality judgment unit configured to judge an imaging position and an image quality based on imaging information, respectively, and a diagnosis support information provision unit configured to provide diagnosis support information based on provider information.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 9, 2014
    Applicants: MEDIA CO., LTD., GIFU UNIVERSITY
    Inventors: Hiroshi Fujita, Takeshi Hara, Akitoshi Katsumata, Tatsuro Hayashi
  • Publication number: 20130114799
    Abstract: In the imaging space provided by a panoramic imaging apparatus, a phantom is arranged. The phantom is located to a predetermined tomographic plane and includes markers which image known positional information with an X-ray beam. The X-ray beam from an X-ray source is acquired as X-ray transmission data by a detector, and a panoramic image is produced using the data. Based on known positional information of the markers and information of marker positions in the panoramic image, distance information (Rs, Rd) between the X-ray tube and the detector and height information (B1) of the X-ray tube to the detector are calculated. From this calculated results and the acquired data, parameters (?x/?Fi, ?, ??/?Fi, D, A, CX, CY) defining positional relationships among the X-ray tube, the detector, and the tomographic plane are calculated such that amounts of changes in the position connecting the X-ray tube and the detector are considered in the parameters.
    Type: Application
    Filed: May 10, 2011
    Publication date: May 9, 2013
    Applicant: TELESYSTEMS CO., LTD.
    Inventors: Tsutomu Yamakawa, Koichi Ogawa, Akitoshi Katsumata, Masahiro Tsujita, Hideyuki Nagaoka
  • Publication number: 20120328071
    Abstract: A radiation imaging apparatus is provided. The apparatus has moving means moving a pair of an X-ray tube and a detector relatively to an object. The apparatus further has means which acquire digital frame data outputted from the detector. The frame data are acquired from the same portion being imaged of the same object at different time points. The apparatus has means which use the frame data to produce a plurality of three-dimensional optimally focused images at the respective time points, an actual position and shape of the portion being imaged being reflected in the images, and means which estimate changes of the plural three-dimensional optimally focused images.
    Type: Application
    Filed: August 5, 2010
    Publication date: December 27, 2012
    Applicant: TELESYSTEMS CO., LTD.
    Inventors: Akitoshi Katsumata, Koichi Ogawa, Tsutomu Yamakawa, Masahiro Tsujita, Tatsuya Nagano, Kazuhide Kitou
  • Publication number: 20120230467
    Abstract: There is provided a panoramic imaging apparatus which serves as a radiation imaging apparatus. The panoramic imaging apparatus includes an X-ray tube radiating an X-ray as a radiation, a detector outputting digital-quantity frame data corresponding to an incident X-ray, and moving means moving the pair of X-ray tube and the detector relatively to an object. The apparatus further includes means for acquiring the frame data from the detector during movement of the X-ray tube and the detector, and means for optimally focusing a portion being imaged of the object using the acquired data and producing a three-dimensional optimally focused image in which the real size and shape of the portion being imaged are reflected.
    Type: Application
    Filed: July 29, 2010
    Publication date: September 13, 2012
    Applicant: TELESYSTEMS Co., Ltd.
    Inventors: Akitoshi Katsumata, Koichi Ogawa, Tsutomu Yamakawa, Masahiro Tsujita, Tatsuya Nagano, Kazuhide Kitou