Patents by Inventor Yasufumi Fukuma

Yasufumi Fukuma 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: 20250111518
    Abstract: Provided is an object measurement device for measuring the shape of an object by recognizing the object using a machine learning model, automating determination of an edge detection direction and determination of a region for performing edge processing, and performing highly accurate edge extraction in units of sub-pixels, for example.
    Type: Application
    Filed: December 23, 2022
    Publication date: April 3, 2025
    Inventors: Toru ITO, Yasufumi FUKUMA, Zaixing MAO, Hisashi TSUKADA
  • Patent number: 12262948
    Abstract: The present disclosure provides a microscope including a first optical member configured to guide light from a light source in a first optical axis direction; a first reflecting member configured to guide the light guided in the first optical axis direction in a second optical axis direction substantially orthogonal to the first optical axis direction; a second optical member configured to relay the light guided in the second optical axis direction; a second reflecting member configured to guide the light relayed by the second optical member in a third optical axis direction substantially orthogonal to the second optical axis direction; and a function expansion objective lens disposed on the third optical axis direction and configured to radiate the light guided in the third optical axis direction onto a predetermined portion of the observation target.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: April 1, 2025
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Kazuhiro Oomori, Hisashi Tsukada
  • Publication number: 20250082201
    Abstract: A slit lamp microscope of an aspect example includes an illumination system, first photographing system, fixation system, movement mechanism, and controller. The illumination system projects slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The fixation system outputs fixation light for fixation of the subject's eye. The movement mechanism moves the illumination system and the first photographing system, the controller performs a first control for the movement mechanism to move at least the illumination system and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other while causing the fixation system to output the fixation light.
    Type: Application
    Filed: November 25, 2024
    Publication date: March 13, 2025
    Applicant: TOPCON CORPORATION
    Inventors: Kazuhiro OHMORI, Yasufumi FUKUMA, Satoshi YAMAMOTO
  • Patent number: 12226160
    Abstract: An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.
    Type: Grant
    Filed: October 11, 2023
    Date of Patent: February 18, 2025
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Hisashi Tsukada, Atsushi Kubota
  • Patent number: 12226161
    Abstract: An ophthalmic apparatus includes an acquiring unit, an OCT unit, an analyzer, and a calculator. The acquiring unit is configured to acquire a dioptric power in a first region including a fovea of a subject's eye. The OCT unit is configured to acquire OCT data of a fundus of the subject's eye using optical coherence tomography. The analyzer is configured to specify a shape of the fundus by analyzing the OCT data. The calculator is configured to calculate a dioptric power in a peripheral region of the first region of the fundus based on the dioptric power in the first region and the shape of the fundus.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: February 18, 2025
    Assignee: TOPCON CORPORATION
    Inventors: Masashi Nakajima, Jonathan Liu, Yasufumi Fukuma
  • Patent number: 12220173
    Abstract: A slit lamp microscope of an aspect example includes an illumination system, first photographing system, fixation system, movement mechanism, and controller. The illumination system projects slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The fixation system outputs fixation light for fixation of the subject's eye. The movement mechanism moves the illumination system and the first photographing system. the controller performs a first control for the movement mechanism to move at least the illumination system and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other while causing the fixation system to output the fixation light.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: February 11, 2025
    Assignee: TOPCON CORPORATION
    Inventors: Kazuhiro Ohmori, Yasufumi Fukuma, Satoshi Yamamoto
  • Publication number: 20240374135
    Abstract: A slit lamp microscope of an aspect example includes an illumination system, first photographing system, fixation system, movement mechanism, and controller. The illumination system projects slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The fixation system outputs fixation light for fixation of the subject's eye. The movement mechanism moves the illumination system and the first photographing system, the controller performs a first control for the movement mechanism to move at least the illumination system and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other while causing the fixation system to output the fixation light.
    Type: Application
    Filed: July 22, 2024
    Publication date: November 14, 2024
    Applicant: TOPCON CORPORATION
    Inventors: Kazuhiro OHMORI, Yasufumi FUKUMA, Satoshi YAMAMOTO
  • Publication number: 20240266062
    Abstract: Provided are a disease risk evaluation method, a disease risk evaluation system and a health information processing device, whereby it becomes possible to detect the latent onset tendency in a healthy stage in advance and to quantify the prospective disease risk of a disease of interest. Each of the disease risk evaluation method, the disease risk evaluation system and the health information processing device according to the present invention includes a plurality of steps, i.e., a step for classifying into a group in which the susceptibility to developing a specific disease is high and a group in which the susceptibility to developing the specific disease is low regardless of the degree of progression of the disease from a healthy stage until the onset of the disease, and a step for further classifying the degrees of the development of the disease in a group in which the incidence risk is determined as high.
    Type: Application
    Filed: May 27, 2022
    Publication date: August 8, 2024
    Inventors: Satoshi WADA, Kei TANEISHI, Yasufumi FUKUMA, Zaixing MAO, Hisashi TSUKADA
  • Patent number: 12029485
    Abstract: An ophthalmic microscope including an observation optical system having a first focal point in front of an eye; an objective auxiliary lens positionable on the eye side of an objective lens in the observation optical system or releasable therefrom, a focal point when the objective auxiliary lens is positioned to a second focal point on an anterior ocular eye position; and a front lens positionable further toward the eye side than the first focal point or releasable from the position, a focal point through the eye's crystalline lens when the front lens is set to a third focal point and a posterior ocular segment position of the eye, the objective auxiliary lens set and the front lens released during anterior ocular segment observation, the front lens set and the objective auxiliary lens released during posterior ocular segment observation, without changing a positional relationship between the objective lens and eye.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: July 9, 2024
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Kazuhiro Oomori
  • Patent number: 12011225
    Abstract: A slit lamp microscope of some embodiment examples includes an illumination system, photography system, and movement mechanism. The illumination system projects slit light onto an anterior segment of an eye. The photography system includes an optical system and image sensor. The optical system directs light coming from the anterior segment onto which the slit light is being projected. The image sensor includes a light detecting plane that receives the light directed by the optical system. The movement mechanism moves the illumination and photography systems. The subject plane along the optical axis of the illumination system, the optical system, and the light detecting plane satisfy the Scheimpflug condition. The photography system acquires a plurality of images of the anterior segment by performing repetitive photography in parallel with movement of the illumination and photography systems performed by the movement mechanism.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: June 18, 2024
    Assignee: TOPCON CORPORATION
    Inventors: Kazuhiro Oomori, Yasufumi Fukuma, Hitoshi Shimizu
  • Patent number: 11950849
    Abstract: An ophthalmic system of an embodiment includes a slit lamp microscope, three dimensional image constructing unit, rendering processor, display controller, report creating unit, and report output unit. The slit lamp microscope includes a front image acquiring unit that photographs an anterior eye segment to acquire a front image, and an image collecting unit that photographs the anterior eye segment with slit light to collect a plurality of images. The three dimensional image constructing unit constructs a three dimensional image based on the collected images. The rendering processor applies rendering to the three dimensional image to construct a rendered image. The display controller displays the front image and the rendered image on a display device. The report creating unit includes a user interface used for creating a report on information displayed. The report output unit outputs the report.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: April 9, 2024
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Hisashi Tsukada
  • Patent number: 11925415
    Abstract: A slit lamp microscope of some embodiment examples includes an illumination system, first photographing system, first movement mechanism, and controller. The illumination system includes a slit forming unit that forms a slit for generating slit light and projects the slit light onto an anterior segment of a subject's eye from a first direction. The first photographing system photographs the anterior segment onto which the slit light is being projected, from a second direction different from the first direction. The first movement mechanism moves a movable portion that includes at least the slit forming unit. The controller performs a first control for the first movement mechanism to move the movable portion and a second control for the first photographing system to photograph the anterior segment a plurality of times in parallel with each other.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 12, 2024
    Assignee: TOPCON CORPORATION
    Inventors: Kazuhiro Ohmori, Yasufumi Fukuma, Satoshi Yamamoto
  • Publication number: 20240041316
    Abstract: An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 8, 2024
    Applicant: TOPCON CORPORATION
    Inventors: Yasufumi FUKUMA, Hisashi TSUKADA, Atsushi KUBOTA
  • Patent number: 11880943
    Abstract: The data set receiving unit 13 of the information processing apparatus 1 of an aspect example receives a data set that includes at least BIM data. The route setting processor 151 sets a route, which is arranged inside and/or outside a virtual building represented by the BIM data, based on the data set received. The virtual image set generating processor 152 generates a virtual image set of the virtual building along the route, based on the received data set and the set route. The inference model creating processor 153 creates an inference model by applying machine learning with training data that includes at least the generated virtual image set to a neural network. The inference model created is used to identify data of a building material from data acquired by measuring a building.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: January 23, 2024
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Satoshi Yanobe
  • Patent number: 11871994
    Abstract: The object of the present invention is to develop an ophthalmologic microscope of a new method that increases the degree of freedom in the optical design in the Galilean ophthalmologic microscope provided with an OCT optical system. The present invention provides an ophthalmologic microscope, wherein an observation optical system, an objective lens, and an OCT optical system are placed in such a way that the optical axis of the OCT optical system does not penetrate through objective lens, and the optical axis of the observation optical system and the optical axis of the OCT optical system are non-coaxial, and wherein the ophthalmologic microscope further comprises a SLO optical system that scans a light ray which is a visible ray, a near infrared ray, or an infrared ray and guides the light to the subject's eye so as to become substantially coaxial with the optical axis of the OCT optical system.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: January 16, 2024
    Assignee: Topcon Corporation
    Inventors: Yasufumi Fukuma, Kazuhiro Oomori
  • Publication number: 20240008741
    Abstract: An ophthalmic observation apparatus of an embodiment includes an illumination system, a photography system, and a focus processor. The illumination system includes a light source configured to emit illumination light and an indicator member having a plurality of indicators, and is configured to project the illumination light onto a subject's eye via the indicator member. The photography system includes an image sensor and is configured to perform photography of the subject's eye. The focus processor is configured to perform detection of a plurality of indicator images from an image acquired by the photography system, and perform a focus control of the photography system based on the plurality of indicator images.
    Type: Application
    Filed: December 9, 2020
    Publication date: January 11, 2024
    Applicant: Topcon Corporation
    Inventors: Kazuhiro YAMADA, Kazuhiro OOMORI, Yasufumi FUKUMA
  • Publication number: 20240000310
    Abstract: An ophthalmic information processing apparatus includes an acquisition unit and a normalizer. The acquisition unit is configured to acquire eye shape data or an intraocular distance of an eye of a subject. The normalizer is configured to normalize the eye shape data or the intraocular distance based on body data of the subject or a refractive power of the eye of the subject.
    Type: Application
    Filed: July 27, 2023
    Publication date: January 4, 2024
    Applicant: Topcon Corporation
    Inventors: Toshihiro MINO, Shuyun YEH, Masashi NAKAJIMA, Yasufumi FUKUMA
  • Patent number: 11849996
    Abstract: An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: December 26, 2023
    Assignee: TOPCON CORPORATION
    Inventors: Yasufumi Fukuma, Hisashi Tsukada, Atsushi Kubota
  • Publication number: 20230404390
    Abstract: Disclosed is a myopia progression analysis device including: an eye axial length acquisition section that acquires an eye axial length of an eye of a subject; a reference value acquisition section that acquires a numerical value related to a physical characteristic of the subject other than the eye axial length as a reference value; a relative eye axial length calculator that calculates a relative eye axial length through relativization of the eye axial length acquired by the eye axial length acquisition section using the reference value acquired by the reference value acquisition section; a population information acquisition section that acquires population information which is a set of information about relative eye axial lengths of a plurality of comparison targets to be compared with the subject; and a relative position information calculator.
    Type: Application
    Filed: October 11, 2021
    Publication date: December 21, 2023
    Applicant: TOPCON CORPORATION
    Inventors: Masashi NAKAJIMA, Yasufumi FUKUMA, Shu-Yun YEH
  • Publication number: 20230404400
    Abstract: An ophthalmic observation apparatus of an embodiment example includes a moving image generating unit, a movement mechanism, an analyzing processor, and a first controller. The moving image generating unit is configured to generate a moving image by illuminating and photographing the subject's eye. The movement mechanism is configured to move the moving image generating unit. The analyzing processor is configured to sequentially analyze a plurality of still images included in the moving image generated by the moving image generating unit being moved by the movement mechanism to sequentially detect images of a predetermined site of the subject's eye. The first controller is configured to control the movement mechanism based on a change in a predetermined image parameter of the images sequentially detected by the analyzing processor.
    Type: Application
    Filed: December 9, 2020
    Publication date: December 21, 2023
    Applicant: Topcon Corporation
    Inventors: Kazuhiro YAMADA, Kazuhiro OOMORI, Yasufumi FUKUMA