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).
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Publication number: 20250111518Abstract: 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: ApplicationFiled: December 23, 2022Publication date: April 3, 2025Inventors: Toru ITO, Yasufumi FUKUMA, Zaixing MAO, Hisashi TSUKADA
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Patent number: 12262948Abstract: 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: GrantFiled: July 9, 2018Date of Patent: April 1, 2025Assignee: TOPCON CORPORATIONInventors: Yasufumi Fukuma, Kazuhiro Oomori, Hisashi Tsukada
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Publication number: 20250082201Abstract: 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: ApplicationFiled: November 25, 2024Publication date: March 13, 2025Applicant: TOPCON CORPORATIONInventors: Kazuhiro OHMORI, Yasufumi FUKUMA, Satoshi YAMAMOTO
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Patent number: 12226160Abstract: 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: GrantFiled: October 11, 2023Date of Patent: February 18, 2025Assignee: TOPCON CORPORATIONInventors: Yasufumi Fukuma, Hisashi Tsukada, Atsushi Kubota
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Patent number: 12226161Abstract: 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: GrantFiled: July 14, 2021Date of Patent: February 18, 2025Assignee: TOPCON CORPORATIONInventors: Masashi Nakajima, Jonathan Liu, Yasufumi Fukuma
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Patent number: 12220173Abstract: 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: GrantFiled: March 13, 2019Date of Patent: February 11, 2025Assignee: TOPCON CORPORATIONInventors: Kazuhiro Ohmori, Yasufumi Fukuma, Satoshi Yamamoto
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Publication number: 20240374135Abstract: 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: ApplicationFiled: July 22, 2024Publication date: November 14, 2024Applicant: TOPCON CORPORATIONInventors: Kazuhiro OHMORI, Yasufumi FUKUMA, Satoshi YAMAMOTO
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Publication number: 20240266062Abstract: 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: ApplicationFiled: May 27, 2022Publication date: August 8, 2024Inventors: Satoshi WADA, Kei TANEISHI, Yasufumi FUKUMA, Zaixing MAO, Hisashi TSUKADA
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Patent number: 12029485Abstract: 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: GrantFiled: August 28, 2018Date of Patent: July 9, 2024Assignee: TOPCON CORPORATIONInventors: Yasufumi Fukuma, Kazuhiro Oomori
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Patent number: 12011225Abstract: 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: GrantFiled: June 12, 2019Date of Patent: June 18, 2024Assignee: TOPCON CORPORATIONInventors: Kazuhiro Oomori, Yasufumi Fukuma, Hitoshi Shimizu
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Patent number: 11950849Abstract: 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: GrantFiled: December 26, 2018Date of Patent: April 9, 2024Assignee: TOPCON CORPORATIONInventors: Yasufumi Fukuma, Hisashi Tsukada
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Patent number: 11925415Abstract: 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: GrantFiled: March 13, 2019Date of Patent: March 12, 2024Assignee: TOPCON CORPORATIONInventors: Kazuhiro Ohmori, Yasufumi Fukuma, Satoshi Yamamoto
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Publication number: 20240041316Abstract: 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: ApplicationFiled: October 11, 2023Publication date: February 8, 2024Applicant: TOPCON CORPORATIONInventors: Yasufumi FUKUMA, Hisashi TSUKADA, Atsushi KUBOTA
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Patent number: 11880943Abstract: 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: GrantFiled: April 25, 2022Date of Patent: January 23, 2024Assignee: TOPCON CORPORATIONInventors: Yasufumi Fukuma, Satoshi Yanobe
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Patent number: 11871994Abstract: 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: GrantFiled: October 5, 2021Date of Patent: January 16, 2024Assignee: Topcon CorporationInventors: Yasufumi Fukuma, Kazuhiro Oomori
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Publication number: 20240008741Abstract: 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: ApplicationFiled: December 9, 2020Publication date: January 11, 2024Applicant: Topcon CorporationInventors: Kazuhiro YAMADA, Kazuhiro OOMORI, Yasufumi FUKUMA
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Publication number: 20240000310Abstract: 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: ApplicationFiled: July 27, 2023Publication date: January 4, 2024Applicant: Topcon CorporationInventors: Toshihiro MINO, Shuyun YEH, Masashi NAKAJIMA, Yasufumi FUKUMA
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Patent number: 11849996Abstract: 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: GrantFiled: July 1, 2020Date of Patent: December 26, 2023Assignee: TOPCON CORPORATIONInventors: Yasufumi Fukuma, Hisashi Tsukada, Atsushi Kubota
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Publication number: 20230404390Abstract: 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: ApplicationFiled: October 11, 2021Publication date: December 21, 2023Applicant: TOPCON CORPORATIONInventors: Masashi NAKAJIMA, Yasufumi FUKUMA, Shu-Yun YEH
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Publication number: 20230404400Abstract: 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: ApplicationFiled: December 9, 2020Publication date: December 21, 2023Applicant: Topcon CorporationInventors: Kazuhiro YAMADA, Kazuhiro OOMORI, Yasufumi FUKUMA