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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Patent number: 9962257Abstract: An intraocular lens system according to an embodiment includes a lens, a converter, and a driver. The lens is placed in the lens capsule, and configured to allow at least changes of the focal length. The converter is placed in the lens capsule, transmits part of incident light therethrough, and converts the energy of other part of the light into electrical energy. The driver is placed in the lens capsule, operates with the electrical energy obtained by the converter, and is used to change the focal length of the lens.Type: GrantFiled: July 29, 2014Date of Patent: May 8, 2018Assignee: KABUSHIKI KAISHA TOPCONInventors: Yasufumi Fukuma, Hisashi Tsukada
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Patent number: 9936870Abstract: In an embodiment, cross sectional image storage stores a cross sectional image group including multiple cross sectional images each of which is associated with time. Phase image storage stores a phase image group including multiple phase images each of which is associated with time. Blood flow information storage stores a blood flow information group including multiple blood flow information each of which is related to blood flow in a blood vessel of the living body and is associated with time. Display synchronously displays a cross sectional image included in the cross sectional image group and a phase image included in the phase image group using time associated with the cross sectional image and the phase image, and displays a blood flow image. The display performs the same change as the change to the change operation to the cross sectional image, the phase image and the blood flow image.Type: GrantFiled: June 29, 2016Date of Patent: April 10, 2018Assignees: KABUSHIKI KAISHA TOPCON, National University Corporation ASAHIKAWA MEDICAL UNIVERITYInventors: Akitoshi Yoshida, Masahiro Akiba, Yasufumi Fukuma, Hideaki Tokoro, Taiki Aimi, Shunsuke Nakamura
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Publication number: 20180085212Abstract: An ocular function assistance device of an embodiment includes an actuator, a controller, and an information input unit. The ocular function assistance device is used for assisting an ocular function. The actuator receives electricity and operates for providing a predefined ocular function. The controller executes at least control of electricity supply to the actuator. The information input unit inputs biological information or condition information into the controller. The controller changes a control mode of the actuator based on the biological information or the condition information.Type: ApplicationFiled: February 22, 2016Publication date: March 29, 2018Applicant: KABUSHIKI KAISHA TOPCONInventors: Toshifumi MIHASHI, Yasufumi FUKUMA, Makoto FUJINO
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Patent number: 9848772Abstract: In an embodiment, cross sectional image storage stores a cross sectional image group including multiple cross sectional images each of which is associated with time. Phase image storage stores a phase image group including multiple phase images each of which is associated with time. Blood flow information storage stores a blood flow information group including multiple blood flow information each of which is related to blood flow in a blood vessel of the living body and is associated with time. Display synchronously displays a cross sectional image included in the cross sectional image group and a phase image included in the phase image group using time associated with the cross sectional image and the phase image, and displays a blood flow image that expresses multiple blood flow information. The display performs the same change as the change to the cross sectional image, the phase image and the blood flow image.Type: GrantFiled: June 29, 2016Date of Patent: December 26, 2017Assignees: KABUSHIKI KAISHA TOPCON, National University Corporation ASAHIKAWA MEDICAL UNIVERSITYInventors: Akitoshi Yoshida, Masahiro Akiba, Yasufumi Fukuma, Hideaki Tokoro, Taiki Aimi, Shunsuke Nakamura
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Patent number: 9789312Abstract: A retinal prosthesis system according to an embodiment includes a converter, a retinal prosthesis, and a transmitter. The converter is placed in an eye, and transmits part of light incident on the eye therethrough while converting the energy of the other part of the light into electrical energy. The retinal prosthesis is placed in the eye and includes a photoelectric conversion element array configured to operate with the electrical energy received from the converter to detect the light having transmitted through the converter to generate an electrical signal. The transmitter is used to send the electrical signal generated by the retinal prosthesis to the visual cortex of the brain.Type: GrantFiled: July 29, 2014Date of Patent: October 17, 2017Assignee: Kabushiki Kaisha TopconInventors: Yasufumi Fukuma, Hisashi Tsukada
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Patent number: 9782070Abstract: The fundus photographing apparatus of the present invention includes an illumination light source that generates illumination light flux for illuminating a fundus (of a subject eye), a scanning optical system that converts the illumination light flux from the illumination light source unit into spot light to scan the fundus in two-dimensional directions of a horizontal direction and a vertical direction by the spot light, a light receiver that receives reflected light from each portion of the fundus illuminated by the spot light, and a fundus image acquiring unit that acquires a fundus image based on a signal from the light receiver, wherein the scanning optical system is provided with a scanner including a reflection mirror plate that rotates about orthogonal two axes to simultaneously deflect the spot light in the vertical direction and the horizontal direction for scanning.Type: GrantFiled: April 4, 2014Date of Patent: October 10, 2017Assignee: Kabushiki Kaisha TOPCONInventors: Atsushi Utsunomiya, Hirotake Maruyama, Tomoyoshi Abe, Yasufumi Fukuma
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Patent number: 9717408Abstract: An ophthalmologic imaging apparatus includes: a first optical system that applies an accommodation stimulus to a subject's eye; a tomographic image forming unit that includes a second optical system that splits light from a light source into signal light and reference light, and detects interference light between the signal light having travelled via the subject's eye and the reference light, and creates a tomographic image of the subject's eye based on a detection result of the interference light; and an analyzer that compares a first tomographic image with a second tomographic image to acquire change information indicating a change in a tissue of the subject's eye due to an accommodation stimulus change. The first and second tomographic images are respectively created by the tomographic image forming unit for the subject's eye, to which first and second accommodation stimuli are respectively applied by the first and second optical systems.Type: GrantFiled: December 4, 2013Date of Patent: August 1, 2017Assignee: KABUSHIKI KAISHA TOPCONInventors: Masahiro Akiba, Yasufumi Fukuma, Hiroshi Akiyama, Hisashi Tsukada, Eiichi Yanagi
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Patent number: 9662013Abstract: According to one embodiment, an ophthalmic microscope includes an illumination system, a pair of light-receiving systems, and a first mechanism. The illumination system is configured to irradiate a subject's eye with illumination light. Each of the light-receiving systems includes a first objective lens and a first imaging device, and is configured to guide return light of the illumination light returning from the subject's eye to the first imaging device through the first objective lens. The objective optical axes of the light-receiving systems are not parallel to each other. The first mechanism is configured to move the light-receiving systems relative to each other to change an angle formed by the objective optical axes of the light-receiving systems.Type: GrantFiled: February 22, 2016Date of Patent: May 30, 2017Assignee: KABUSHIKI KAISHA TOPCONInventors: Yasufumi Fukuma, Kazuhiro Oomori, Satoshi Yamamoto
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Patent number: 9526415Abstract: An ophthalmologic apparatus of an embodiment includes an examination part, a moving mechanism, an information obtaining part, and a controller. The examination part is configured to include an optical system for optically examining an eye. The moving mechanism is configured to move the optical system. The information obtaining part is configured to obtain information for carrying out position matching of the optical system to the eye. The controller is configured to carry out first control for the moving mechanism based on the information obtained by the information obtaining part to move the optical system, determine whether information optically obtained by the optical system after the first control is appropriate to the examination or not, and when it is determined that this information is not appropriate, carry out second control for the moving mechanism in response to a prescribed trigger to move the optical system.Type: GrantFiled: May 20, 2014Date of Patent: December 27, 2016Assignee: KABUSHIKI KAISHA TOPCONInventors: Yasufumi Fukuma, Kanichi Tokuda, Taiki Aimi, Atsushi Kubota, Yusuke Ono
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Patent number: 9492082Abstract: An optical system splits light into signal light and reference light and detects interference light between scattered light of signal light from living body and reference light. A scanner performs first scan in which first cross section that intersects interested blood vessel is repeatedly scanned with signal light. An image forming part forms first cross sectional image expressing chronological variation of morphology of first cross section and phase image expressing chronological variation of phase difference based on detection results of interference light acquired during first scan. A blood vessel region specifying part specifies blood vessel region corresponding to interested blood vessel for first cross sectional image and phase image. A blood flow information generator generates blood flow information related to interested blood vessel based on blood vessel region of first cross sectional image and chronological variation of phase difference within blood vessel region of phase image.Type: GrantFiled: March 8, 2013Date of Patent: November 15, 2016Assignees: KABUSHIKI KAISHA TOPCON, National University Corporation ASAHIKAWA MEDICAL UNIVERSITYInventors: Akitoshi Yoshida, Masahiro Akiba, Yasufumi Fukuma, Hideaki Tokoro, Taiki Aimi, Shunsuke Nakamura
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Publication number: 20160310024Abstract: In an embodiment, cross sectional image storage stores a cross sectional image group including multiple cross sectional images each of which is associated with time. Phase image storage stores a phase image group including multiple phase images each of which is associated with time. Blood flow information storage stores a blood flow information group including multiple blood flow information each of which is related to blood flow in a blood vessel of the living body and is associated with time. Display synchronously displays a cross sectional image included in the cross sectional image group and a phase image included in the phase image group using time associated with the cross sectional image and the phase image, and displays a blood flow image that expresses multiple blood flow information. The display performs the same change as the change to the cross sectional image, the phase image and the blood flow image.Type: ApplicationFiled: June 29, 2016Publication date: October 27, 2016Applicants: KABUSHIKI KAISHA TOPCON, National University Corporation ASAHIKAWA MEDICAL UNIVERSITYInventors: Akitoshi Yoshida, Masahiro AKIBA, Yasufumi FUKUMA, Hideaki TOKORO, Taiki AIMI, Shunsuke NAKAMURA
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Publication number: 20160302738Abstract: In an embodiment, cross sectional image storage stores a cross sectional image group including multiple cross sectional images each of which is associated with time. Phase image storage stores a phase image group including multiple phase images each of which is associated with time. Blood flow information storage stores a blood flow information group including multiple blood flow information each of which is related to blood flow in a blood vessel of the living body and is associated with time. Display synchronously displays a cross sectional image included in the cross sectional image group and a phase image included in the phase image group using time associated with the cross sectional image and the phase image, and displays a blood flow image. The display performs the same change as the change to the change operation to the cross sectional image, the phase image and the blood flow image.Type: ApplicationFiled: June 29, 2016Publication date: October 20, 2016Applicants: KABUSHIKI KAISHA TOPCON, National University Corporation ASAHIKAWA MEDICAL UNIVERSITYInventors: Akitoshi Yoshida, Masahiro Akiba, Yasufumi Fukuma, Hideaki Tokoro, Taiki Aimi, Shunsuke Nakamura
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Publication number: 20160278636Abstract: According to one embodiment, an ophthalmic microscope includes an illumination system, a pair of light-receiving systems, and a first mechanism. The illumination system is configured to irradiate a subject's eye with illumination light. Each of the light-receiving systems includes a first objective lens and a first imaging device, and is configured to guide return light of the illumination light returning from the subject's eye to the first imaging device through the first objective lens. The objective optical axes of the light-receiving systems are not parallel to each other. The first mechanism is configured to move the light-receiving systems relative to each other to change an angle formed by the objective optical axes of the light-receiving systems.Type: ApplicationFiled: February 22, 2016Publication date: September 29, 2016Applicant: KABUSHIKI KAISHA TOPCONInventors: Yasufumi FUKUMA, Kazuhiro Oomori, Satoshi Yamamoto
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Publication number: 20160278635Abstract: According to one embodiment, an ophthalmic microscope system includes an illumination system, a pair of light-receiving systems, and an irradiation system. The illumination system is configured to irradiate a subject's eye with illumination light. Each of the light-receiving systems includes a first objective lens and a first imaging device, and is configured to guide the illumination light returning from the subject's eye to the first imaging device through the first objective lens. The objective optical axes of the light-receiving systems are not parallel to each other. The irradiation system is configured to irradiate the subject's eye with light different from the illumination light from a direction different from the objective optical axes.Type: ApplicationFiled: February 22, 2016Publication date: September 29, 2016Applicant: KABUSHIKI KAISHA TOPCONInventors: Yasufumi FUKUMA, Kazuhiro Oomori, Satoshi Yamamoto
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Publication number: 20160213926Abstract: A retinal prosthesis system according to an embodiment includes a converter, a retinal prosthesis, and a transmitter. The converter is placed in an eye, and transmits part of light incident on the eye therethrough while converting the energy of the other part of the light into electrical energy. The retinal prosthesis is placed in the eye and includes a photoelectric conversion element array configured to operate with the electrical energy received from the converter to detect the light having transmitted through the converter to generate an electrical signal. The transmitter is used to send the electrical signal generated by the retinal prosthesis to the visual cortex of the brain.Type: ApplicationFiled: July 29, 2014Publication date: July 28, 2016Inventors: Yasufumi FUKUMA, Hisashi TSUKADA
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Publication number: 20160213464Abstract: An intraocular lens system according to an embodiment includes a lens, a converter, and a driver. The lens is placed in the lens capsule, and configured to allow at least changes of the focal length. The converter is placed in the lens capsule, transmits part of incident light therethrough, and converts the energy of other part of the light into electrical energy. The driver is placed in the lens capsule, operates with the electrical energy obtained by the converter, and is used to change the focal length of the lens.Type: ApplicationFiled: July 29, 2014Publication date: July 28, 2016Inventors: Yasufumi FUKUMA, Hisashi TSUKADA
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Patent number: 9380937Abstract: An ophthalmologic apparatus of an embodiment includes an examination part, moving mechanism, two or more imaging parts, extracting part and controller. The examination part includes an optical system for optically examining an eye. The moving mechanism moves the optical system. The two or more imaging parts obtain moving images of the eye from two or more different directions. The extracting part extracts a partial image from each of two or more images substantially simultaneously obtained by the two or more imaging parts. The controller carries out display control for displaying in real time two or more partial images extracted by the extracting part with an arrangement in accordance with the positional relationship thereof on a display means and movement control for controlling the moving mechanism based on an instruction input from an operation means.Type: GrantFiled: March 26, 2014Date of Patent: July 5, 2016Assignee: KABUSHIKI KAISHA TOPCONInventors: Yasufumi Fukuma, Kanichi Tokuda, Taiki Aimi, Atsushi Kubota, Yusuke Ono
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Publication number: 20160183796Abstract: A patient management system of an embodiment includes a server, a plurality of ophthalmic examination apparatuses assigned to a plurality of patients, and a plurality of computers installed in a plurality of medical institutions. The ophthalmic examination apparatuses and computers are communicable with the server via a communication line. The server manages the account of each patient, and the account of each medical institution. Test data obtained by each of the ophthalmic examination apparatuses is stored in the account of a corresponding patient. The server sends information stored in the account of a patient to a computer installed in one of the medical institutions assigned in advance to the patient.Type: ApplicationFiled: July 25, 2014Publication date: June 30, 2016Applicant: KABUSHIKI KAISHA TOPCONInventors: Yasufumi FUKUMA, Makoto FUJINO, Hisashi TSUKADA, Takashi KUBOTA
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Patent number: 9370301Abstract: An ophthalmologic apparatus of an embodiment includes an acquiring part, a first optical system, a forming part and a controller. The acquiring part acquires a first front image of an eye fundus. The first optical system scans the fundus by signal light and detects interference light of returned light of the signal light and reference light. The forming part repeatedly forms a second front image of the fundus and a cross sectional image showing a cross section perpendicular to the second front image based on the detection results repeatedly obtained by the first optical system. The controller displays the first front image on a display means, displays, as a moving image, the second front images repeatedly formed by the forming part over the first front image, and displays, as a moving image, the cross sectional images repeatedly formed by the forming part.Type: GrantFiled: May 20, 2014Date of Patent: June 21, 2016Assignee: KABUSHIKI KAISHA TOPCONInventors: Yasufumi Fukuma, Kanichi Tokuda, Taiki Aimi, Atsushi Kubota, Yusuke Ono
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Publication number: 20160113488Abstract: The fundus photographing apparatus of the present invention includes an illumination light source that generates illumination light flux for illuminating a fundus (of a subject eye), a scanning optical system that converts the illumination light flux from the illumination light source unit into spot light to scan the fundus in two-dimensional directions of a horizontal direction and a vertical direction by the spot light, a light receiver that receives reflected light from each portion of the fundus illuminated by the spot light, and a fundus image acquiring unit that acquires a fundus image based on a signal from the light receiver, wherein the scanning optical system is provided with a scanner including a reflection mirror plate that rotates about orthogonal two axes to simultaneously deflect the spot light in the vertical direction and the horizontal direction for scanning.Type: ApplicationFiled: April 4, 2014Publication date: April 28, 2016Applicant: Kabushiki Kaisha TOPCONInventors: Atsushi UTSUNOMIYA, Hirotake MARUYAMA, Tomoyoshi ABE, Yasufumi FUKUMA