Patents by Inventor Hiroki Kajita

Hiroki Kajita 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: 11678950
    Abstract: The present invention provides a multi-viewpoint video image viewing system that allows a viewer to view a multi-viewpoint video content and removes in advance video images in which hands are hidden as a video image candidate. A first invention of the present application selects video images to be displayed on a video image display section in advance and presents the selected video images to a viewer by causing an information processing apparatus to perform hand-target image recognition on motion image (video image) data that includes image data captured with a plurality of video cameras and a frame string disposed in a time region to select video images showing a hand or not to select video images showing no hand.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: June 20, 2023
    Inventor: Hiroki Kajita
  • Patent number: 11345990
    Abstract: A MgO sintered sputtering target, wherein a ratio of GOS (Grain Orientation Spread) being 0° to 1° is 75% or higher. A MgO sintered sputtering target, wherein a ratio of KAM (Kernel Average Misorientation) being 0° to 2° is 90% or higher. An object of the present invention is to provide a MgO sintered sputtering target capable of reducing particles.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 31, 2022
    Assignee: JX NIPPON MINING & METALS CORPORATION
    Inventors: Yoshitaka Shibuya, Satoyasu Narita, Hiroki Kajita
  • Publication number: 20210351023
    Abstract: A sputtering target configured from a magnesium oxide sintered body, wherein a ratio of crystal grains of the magnesium oxide sintered body in which a number of pinholes in a single crystal grain is 20 or more is 50% or less. The present invention is a sputtering target configured from a magnesium oxide sintered body in which the generation of particles during sputtering is less.
    Type: Application
    Filed: October 9, 2019
    Publication date: November 11, 2021
    Inventors: Hiroki KAJITA, Yoshitaka SHIBUYA, Satoyasu NARITA
  • Publication number: 20210177268
    Abstract: An image processing apparatus includes a spectral image acquisition unit configured to acquire a spectral image that is an image generated using photoacoustic signals corresponding to a plurality of different wavelengths, based on photoacoustic waves generated by radiating lights with the plurality of different wavelengths to an object into which a contrast agent has been injected, a contrast agent information acquisition unit configured to acquire information about the contrast agent, a region determination unit configured to determine a region corresponding to the contrast agent in the spectral image on the basis of the information about the contrast agent, and a display control unit configured to display the spectral image such that the region corresponding to the contrast agent is distinguishable from a region other than the region corresponding to the contrast agent.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 17, 2021
    Inventors: Shoya Sasaki, Kenichi Nagae, Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso
  • Publication number: 20210177269
    Abstract: An aspect provides an image processing apparatus processing three-dimensional image data generated based on a photoacoustic wave generated from inside of a subject.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 17, 2021
    Inventors: Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso, Kenichi Nagae
  • Publication number: 20210169397
    Abstract: An image processing apparatus includes a data acquisition unit configured to acquire, in time series, first image data that have been generated based on acoustic waves generated by irradiating a subject, into which a contrast agent has been injected, with light a plurality of times and that correspond respectively to the plurality of times of light irradiation; and an image generation unit configured to generate second image data indicating a region corresponding to the contrast agent in the plurality of first image data on the basis of the plurality of the first image data acquired in time series.
    Type: Application
    Filed: February 19, 2021
    Publication date: June 10, 2021
    Inventors: Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso, Moemi Urano, Kenichi Nagae, Kazuhito Oka
  • Publication number: 20200268471
    Abstract: The present invention provides a multi-viewpoint video image viewing system that allows a viewer to view a multi-viewpoint video content and removes in advance video images in which hands are hidden as a video image candidate. A first invention of the present application selects video images to be displayed on a video image display section in advance and presents the selected video images to a viewer by causing an information processing apparatus to perform hand-target image recognition on motion image (video image) data that includes image data captured with a plurality of video cameras and a frame string disposed in a time region to select video images showing a hand or not to select video images showing no hand.
    Type: Application
    Filed: June 19, 2018
    Publication date: August 27, 2020
    Inventor: Hiroki KAJITA
  • Publication number: 20200263291
    Abstract: A MgO sintered sputtering target, wherein a ratio of GOS (Grain Orientation Spread) being 0° to 1° is 75% or higher. A MgO sintered sputtering target, wherein a ratio of KAM (Kernel Average Misorientation) being 0° to 2° is 90% or higher. An object of the present invention is to provide a MgO sintered sputtering target capable of reducing particles.
    Type: Application
    Filed: March 6, 2019
    Publication date: August 20, 2020
    Inventors: Yoshitaka Shibuya, Satoyasu Narita, Hiroki Kajita
  • Publication number: 20200060551
    Abstract: A system includes an image acquiring unit configured to acquire a first image generated by imaging fluorescence that is generated by emitting excitation light onto a subject into which a fluorescent contrast agent has been introduced; and a photoacoustic measuring unit configured to implement photoacoustic measurement by receiving a photoacoustic wave generated in response to light emission onto the subject, wherein the photoacoustic measuring unit is further configured to control the photoacoustic measurement on the basis of the first image.
    Type: Application
    Filed: August 16, 2019
    Publication date: February 27, 2020
    Inventors: Hiroki Kajita, Nobuaki Imanishi, Sadakazu Aiso, Moemi Urano, Kenichi Nagae, Kazuhito Oka