Patents by Inventor Tetsuya Ohbayashi

Tetsuya Ohbayashi 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: 11900509
    Abstract: A technique capable of providing a user with information obtained by OCT imaging in a useful way, particularly for assisting in assessment of an embryo effectively. The image processing method includes acquiring original signal data indicating an intensity distribution of signal light from each position in three-dimensional space including a cultured embryo obtained by optical coherence tomography imaging, generating spherical coordinate data based on the original signal data, the spherical coordinate data indicating a relationship between each position in the three-dimensional space represented using spherical coordinates having an origin set inside the embryo and the intensity of the signal light from the position, and outputting the intensity distribution of the signal light as a two-dimensional map based on the spherical coordinate data using two deflection angles of the spherical coordinates as coordinate axes.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 13, 2024
    Assignees: SCREEN HOLDINGS CO., LTD., NATIONAL UNIVERSITY CORPORATION TOTTORI UNIVERSITY
    Inventors: Yasushi Kuromi, Masayoshi Kobayashi, Tetsuya Ohbayashi, Takuya Aida
  • Patent number: 11710237
    Abstract: A data processing method that is suitable for obtaining quantitative information from data obtained by OCT imaging. The image processing method includes acquiring original image data corresponding to a three-dimensional image of a cultured embryo obtained by optical coherence tomography imaging of the embryo and executing a region segmentation the three-dimensional image into a plurality of regions on the basis of the original image data. In the region segmentation, a local thickness calculation is performed on the three-dimensional image to determine an index value indicating a size of an object included in the three-dimensional image, the three-dimensional image is segmented into a region indicated by the index value greater than a predetermined first threshold and a region indicated by the index value less than the first threshold, and each of the regions resulting from the segmentation is further segmented by the watershed algorithm.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: July 25, 2023
    Inventors: Yasushi Kuromi, Masayoshi Kobayashi, Tetsuya Ohbayashi, Takuya Aida
  • Patent number: 11369270
    Abstract: It is provided a technique capable of noninvasively and quantitatively evaluating the state of cultured three-dimensional cell-based structure. A method of evaluating a three-dimensional cell-based structure according to the present invention comprises: performing tomography of the cultured three-dimensional cell-based structure (step S103); generating stereoscopic data indicating the three-dimensional shape of the three-dimensional cell-based structure based on image data acquired by the tomography (step S104); and counting the number of structures isolated from each other in the three-dimensional cell-based structure based on the stereoscopic data (step S105).
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 28, 2022
    Assignees: SCREEN HOLDINGS CO., LTD., NATIONAL UNIVERSITY CORPORATION TOTTORI UNIVERSITY
    Inventors: Tetsuya Ohbayashi, Yasushi Kuromi, Masayoshi Kobayashi
  • Publication number: 20210056704
    Abstract: A data processing method that is suitable for obtaining quantitative information from data obtained by OCT imaging. The image processing method includes acquiring original image data corresponding to a three-dimensional image of a cultured embryo obtained by optical coherence tomography imaging of the embryo and executing a region segmentation the three-dimensional image into a plurality of regions on the basis of the original image data. In the region segmentation, a local thickness calculation is performed on the three-dimensional image to determine an index value indicating a size of an object included in the three-dimensional image, the three-dimensional image is segmented into a region indicated by the index value greater than a predetermined first threshold and a region indicated by the index value less than the first threshold, and each of the regions resulting from the segmentation is further segmented by the watershed algorithm.
    Type: Application
    Filed: January 30, 2019
    Publication date: February 25, 2021
    Inventors: Yasushi KUROMI, Masayoshi KOBAYASHI, Tetsuya OHBAYASHI, Takuya AIDA
  • Publication number: 20210042968
    Abstract: A technique capable of providing a user with information obtained by OCT imaging in a useful way, particularly for assisting in assessment of an embryo effectively. The image processing method includes acquiring original signal data indicating an intensity distribution of signal light from each position in three-dimensional space including a cultured embryo obtained by optical coherence tomography imaging, generating spherical coordinate data based on the original signal data, the spherical coordinate data indicating a relationship between each position in the three-dimensional space represented using spherical coordinates having an origin set inside the embryo and the intensity of the signal light from the position, and outputting the intensity distribution of the signal light as a two-dimensional map based on the spherical coordinate data using two deflection angles of the spherical coordinates as coordinate axes.
    Type: Application
    Filed: January 30, 2019
    Publication date: February 11, 2021
    Inventors: Yasushi KUROMI, Masayoshi KOBAYASHI, Tetsuya OHBAYASHI, Takuya AIDA
  • Publication number: 20200008680
    Abstract: It is provided a technique capable of noninvasively and quantitatively evaluating the state of cultured three-dimensional cell-based structure. A method of evaluating a three-dimensional cell-based structure according to the present invention comprises: performing tomography of the cultured three-dimensional cell-based structure (step S103); generating stereoscopic data indicating the three-dimensional shape of the three-dimensional cell-based structure based on image data acquired by the tomography (step S104); and counting the number of structures isolated from each other in the three-dimensional cell-based structure based on the stereoscopic data (step S105).
    Type: Application
    Filed: December 5, 2017
    Publication date: January 9, 2020
    Inventors: Tetsuya OHBAYASHI, Yasushi KUROMI, Masayoshi KOBAYASHI
  • Patent number: 7776525
    Abstract: The expression level of a histamine-releasing factor (HRF) polynucleotide in a biological sample of a subject is measured and the HRF polynucleotide content is compared with that of a normal biological sample. An HRF polynucleotide expression level considerably higher than that of the normal biological sample is employed as an indication of a disease relating to endometriosis or a risk thereof.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: August 17, 2010
    Assignee: Japanese Science and Technology Agency
    Inventors: Masahiko Kuroda, Kosuke Oikawa, Yoshinori Kosugi, Tetsuya Ohbayashi
  • Publication number: 20070184485
    Abstract: The level of a histamine-releasing factor (HRF) protein in a biological sample of a subject is measured and the HRF protein level is compared with that of a normal biological sample. A significantly higher HRF protein level compared with that of the normal biological sample is used as an indicator of a disease related to endometriosis or the degree of its risk.
    Type: Application
    Filed: January 13, 2004
    Publication date: August 9, 2007
    Inventors: Yoshinori Kosugi, Masahiko Kuroda, Kosuke Oikawa, Tetsuya Ohbayashi
  • Publication number: 20070015160
    Abstract: The expression level of a histamine-releasing factor (HRF) polynucleotide in a biological sample of a subject is measured and the HRF polynucleotide content is compared with that of a normal biological sample. An HRF polynucleotide expression level considerably higher than that of the normal biological sample is employed as an indication of a disease relating to endometriosis or a risk thereof.
    Type: Application
    Filed: January 13, 2004
    Publication date: January 18, 2007
    Inventors: Masahiko Kuroda, Kosuke Oikawa, Yoshinori Kosugi, Tetsuya Ohbayashi