Patents by Inventor Haruki IWAI

Haruki IWAI 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: 20230309942
    Abstract: A radiation imaging apparatus includes: an image obtaining unit configured to obtain image data corresponding to incident radiation; and an image processing unit configured to perform first bone density measurement based on image data obtained by the image obtaining unit with a first exposure field and perform second bone density measurement based on image data obtained by the image obtaining unit with a second exposure field narrower than the first exposure field.
    Type: Application
    Filed: June 6, 2023
    Publication date: October 5, 2023
    Inventors: TAKESHI NODA, SOTA TORII, KATSURO TAKENAKA, AKIYA NAKAYAMA, DAISUKE SATO, HARUKI IWAI
  • Publication number: 20230284992
    Abstract: An X-ray diagnosis apparatus according to the present embodiment comprises: an imager configured to image by irradiating X-ray to a subject to acquire a captured image by X-ray imaging and a fluoroscopic image by fluoroscope imaging; and processing circuitry configured to acquire imaging related information obtained within a certain period of time before or after the X-ray imaging, and store in a memory the fluoroscopic image captured at least one of before or after the X-ray imaging based on the imaging related information.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 14, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yusuke OKUMURA, Haruki IWAI, Motohiro SATO
  • Publication number: 20230245308
    Abstract: A medical image processing apparatus comprising: a setting unit configured to set a plurality of candidate regions on a medical image as candidates of a region of interest to be set on the medical image; an analysis unit configured to execute quantitative analysis concerning a composition of an object for each of the plurality of candidate regions; and an output unit configured to output a plurality of analysis results and the plurality of candidate regions in association with each other.
    Type: Application
    Filed: March 30, 2023
    Publication date: August 3, 2023
    Inventors: Takeshi NODA, Sota TORII, Haruki IWAI, Yoshimasa KOBAYASHI, Hisanori KATO
  • Publication number: 20230165992
    Abstract: An x-ray diagnostic apparatus according to an embodiment includes a radiographic unit, a movable unit, and processing circuitry. The radiographic unit performs radiography. The movable unit is provided in the radiographic unit and is movable to plural positions. The processing circuitry moves the movable unit to a position where the movable unit and a disinfection apparatus that performs disinfection have a predetermined positional relation to each other.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 1, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Haruki IWAI, Naoki YAMADA, Hiroki TONOTSUKA, Takehito TOMARU, Naoya FUJITA, Takanori SOUTOME, Takahiro KUROKI
  • Publication number: 20230165553
    Abstract: An X-ray diagnosis apparatus according to the present embodiment comprises: an X-ray irradiator configured to irradiate X-rays; an imager configured to image an identifier that identifies a position of an X-ray detector which detects X-rays; and processing circuitry configured to calculate, based on the identifier shown on an image imaged by the imager, a relative position of the X-ray irradiator regarding the X-ray detector and an irradiation position of the X-ray irradiator where a corresponding relative position meets a predetermined X-ray imaging condition; and output, based on the relative position and the irradiation position, a movement information of the X-ray irradiator.
    Type: Application
    Filed: November 25, 2022
    Publication date: June 1, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Takehito TOMARU, Haruki IWAI, Naoki YAMADA, Takanori SOUTOME, Takahiro KUROKI, Naoya FUJITA, Hiroki TONOTSUKA
  • Publication number: 20230157657
    Abstract: According to one embodiment, an X-ray diagnostic apparatus includes processing circuitry. The processing circuitry is configured to acquire a two-dimensional first X-ray image based on X-ray imaging using a first continuous X-ray spectrum, and acquire a two-dimensional second X-ray image based on X-ray imaging using a second continuous X-ray spectrum different from the first continuous X-ray spectrum. Further, the processing circuitry is configured to generate a two-dimensional virtual third X-ray image that simulates an X-ray image using a third continuous X-ray spectrum different from the first continuous X-ray spectrum and the second continuous X-ray spectrum, based on the first X-ray image and the second X-ray image.
    Type: Application
    Filed: November 23, 2022
    Publication date: May 25, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Akihito TAKAHASHI, Haruki IWAI, Tomoki FUJITO, Yuki TOTSUKA
  • Publication number: 20230114848
    Abstract: A bone information acquisition apparatus comprises: an X-ray image acquisition unit configured to acquire an X-ray image with a subject; an identifying unit configured to identify a mounted state of a grid that removes scattered rays; and a bone information acquisition unit configured to acquire bone information that evaluates a state of a bone of the subject included in the X-ray image in accordance with the mounted state of the grid.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 13, 2023
    Inventors: Haruki Iwai, Sota Torii, Daisuke Sato
  • Publication number: 20230115941
    Abstract: An X-ray diagnostic apparatus according to an embodiment includes processing circuitry configured to improve quality of fourth data corresponding to a fourth number of views that is smaller than a first number of views by inputting the fourth data to a learned model generated by performing machine learning with second data corresponding to a second number of views as input learning data, and third data corresponding to a third number of views that is larger than the second number of views as output learning data, the second data and the third data being acquired based on first data corresponding to the first number of views. The fourth data is data acquired by tomosynthesis imaging.
    Type: Application
    Filed: October 10, 2022
    Publication date: April 13, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yi HU, Yu-Bing CHANG, Komal DUTTA, Haruki IWAI, Rui HUA, Joseph MANAK
  • Publication number: 20230104524
    Abstract: An X-ray image processing apparatus comprising: a first obtaining unit configured to obtain a first X-ray image including an object; a second obtaining unit configured to obtain a first measured value associated with an X-ray condition of the first X-ray image, a second X-ray image that does not include the object, and a second measured value associated with an X-ray condition of the second X-ray image; a gain correction unit configured to correct the first X-ray image based on the first measured value, the second X-ray image, and the second measured value; and an image generation unit configured to generate an evaluation image for evaluating a state of the object based on a corrected image that is the first X-ray image corrected by the gain correction unit.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 6, 2023
    Inventors: Takeshi Noda, Katsuro Takenaka, Haruki Iwai, Daisuke Sato
  • Publication number: 20230069062
    Abstract: An X-ray diagnosis apparatus controls to display information based on an error in an index value evaluating a state of a bone of an object based on at least one of a captured image of the object and an imaging condition which correspond to X-rays with two different types of energies.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 2, 2023
    Inventors: Tomoki Fujito, Haruki Iwai, Takeshi Noda, Sota Torii, Katsuro Takenaka
  • Publication number: 20220399100
    Abstract: The problem to be solved is to utilize an analysis result of a medical image that uses post-processing function to achieve a higher diagnosis accuracy. The medical image processing apparatus according to the present embodiment includes an acquirer that acquires a first medical image information which is a result of an external processing performed on a second medical information including a medical image, a receiver that receives a selected action for the first medical image information, and a register that associates and registers an action information about the selected action for the first medical image information with the first medical image information.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 15, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Haruki IWAI, Rie IKEZAKI, Naoko KURATOMI, Takahiro KUROKI
  • Publication number: 20220327698
    Abstract: An X-ray image processing apparatus of an embodiment includes processing circuitry. The processing circuitry acquires fluoroscopy-related information indicating at least one of a fluoroscopic image and a condition for collecting the fluoroscopic image. The processing circuitry evaluates the image quality of the fluoroscopic image based on the fluoroscopy-related information. The processing circuitry outputs identification information identifying whether to save the fluoroscopic image based on the evaluation result.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 13, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yusuke OKUMURA, Haruki IWAI, Motohiro SATO
  • Patent number: 11357466
    Abstract: An X-ray diagnosis apparatus according to an embodiment includes processing circuitry configured: to acquire a two-dimensional X-ray image of an examined subject imaged in a first imaging process; to designate at least one track on which an X-ray generator is to move in a second imaging process to be performed after the first imaging process; and to perform a predicting process of predicting, on the basis of the two-dimensional X-ray image and the track, an artifact that is to occur when the second imaging process is performed by using the track.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: June 14, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Haruki Iwai, Yoshimasa Kobayashi
  • Publication number: 20220061788
    Abstract: The X-ray imaging system according to the present embodiment includes an X-ray tube, a holding assembly, a flying object, an X-ray detector, and processing circuitry, The X-ray tube is configured to emit X-rays. The holding assembly is configured to hold the X-ray tube. The flying object is equipped with the holding assembly. The X-ray detector is configured to detect the X-rays emitted by the X-ray tube. The processing circuitry is configured to control a flight of the flying object, and to control the flight of the flying object such that the X-ray tube is arranged on a predetermined position with respect to the X-ray detector.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 3, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yoshimasa KOBAYASHI, Haruki IWAI, Toshikatsu OOHASHI, Masato AKIMOTO, Takehito TOMARU, Takehiro FUKUZAKI
  • Publication number: 20210407079
    Abstract: An image processing apparatus for determining a radiation field of radiation from a radiation image comprises: a prediction unit that predicts, based on prior information, a degree that each position of the radiation image becomes a predetermined portion of the radiation field and generating a prediction result representing a distribution of the predicted degrees; an analysis unit that analyzes the radiation image to determines the degree that each position of the radiation image becomes the predetermined portion of the radiation field and generating an analysis result representing the distribution of the predicted degrees; and a recognition unit that decides the predetermined portion of the radiation field based on a combining result obtained by combining the prediction result and the analysis result.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 30, 2021
    Inventors: Hideaki Miyamoto, Haruki Iwai
  • Publication number: 20210285549
    Abstract: A sealing device that can suppress entrance of foreign matter into a place between the end surface of a rotating ring and the end surface of a fixed ring. A sealing device 10 that seals the annular gap between a rotating shaft and a housing having a shaft bore into which the rotating shaft is inserted includes a rotating ring unit 100 provided to the rotating shaft and a fixed ring unit 200 provided to the housing. A plurality of protrusions 140 configured to generate an airflow from the rotating ring 130 side to the fixed ring 230 side when the rotating ring unit 100 rotates are provided on the inner peripheral surface of the rotating ring 130.
    Type: Application
    Filed: October 16, 2017
    Publication date: September 16, 2021
    Applicant: NOK Corporation
    Inventors: Toshiki WATANABE, Haruki IWAI
  • Publication number: 20210100521
    Abstract: An X-ray diagnosis apparatus according to an embodiment includes processing circuitry configured: to acquire a two-dimensional X-ray image of an examined subject imaged in a first imaging process; to designate at least one track on which an X-ray generator is to move in a second imaging process to be performed after the first imaging process; and to perform a predicting process of predicting, on the basis of the two-dimensional X-ray image and the track, an artifact that is to occur when the second imaging process is performed by using the track.
    Type: Application
    Filed: October 2, 2020
    Publication date: April 8, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Haruki IWAI, Yoshimasa KOBAYASHI
  • Patent number: 10702234
    Abstract: A method and apparatus is provided to generate two X-ray projection images, using different focal-spot sizes in the X-ray source. The large and small focal-spot images have different image qualities (e.g., different signal-to-noise rations (SNR) and different resolution). The two images are combined, in either the spatial or frequency domains, to generate a combined image, exhibiting the best attributes of the constitutive small and large focal-spot images. In the spatial domain, change regions and uniform regions are determined based on spatial variations within the images, and the superposition generating the combined image weights the small focal-spot image more in the change regions and the large focal-spot image more in the uniform regions. In the frequency domain, the combined image superimposes low-frequency components of the large focal-spot image with high-frequency components of the small focal-spot image.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: July 7, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Amit Jain, Joseph Manak, Haruki Iwai
  • Patent number: 10416321
    Abstract: An X-ray diagnostic apparatus comprises an X-ray detector including a first detector and a second detector capable of simultaneously detecting X-rays irradiated from an X-ray tube, and processing circuitry configured to, when displaying one of a first image based on output from the first detector and a second image based on output from the second detector on a display, display the other one of the first image and the second image corresponding to a partial region of the one of the first image and the second image.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 17, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Akihito Takahashi, Haruki Iwai
  • Patent number: 10159457
    Abstract: An X-ray diagnostic apparatus comprises: an X-ray detector including a first detector and a second detector capable of simultaneously detecting X-rays irradiated from an X-ray tube; and processing circuitry configured to correct, by using information of a second image that is based on an output from the second detector, a first image that is based on an output from the first detector.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 25, 2018
    Assignee: Canon Medical Systems Corporation
    Inventors: Akihito Takahashi, Haruki Iwai