Patents by Inventor Naoki Isogai
Naoki Isogai 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: 11071452Abstract: The present disclosure relates to an optical coherence tomography (OCT) including: an OCT device, an OCT calculation method, and an OCT calculation program, enabling correlation between images to be easily performed; more specifically it relates to a case where a functional OCT image such as a motion contrast is acquired by using the OCT; acquiring the functional OCT image through a calculation process of an OCT signal is a time-consuming process, for this reason, a long time elapses until the point that a functional OCT image can be observed after OCT imaging is completed, and thus this causes stress to a subject and an examiner; the present disclosure provides an OCT device, an OCT calculation method, and an OCT calculation program, enabling a functional OCT image to be rapidly acquired and enables an examiner to easily perform diagnosis.Type: GrantFiled: June 29, 2015Date of Patent: July 27, 2021Assignee: NIDEK CO., LTD.Inventors: Norimasa Satake, Yukihiro Higuchi, Yuji Murase, Yasuhiro Furuuchi, Hajime Namiki, Naoki Isogai, Masaaki Hanebuchi, Naoki Takeno
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Patent number: 10238281Abstract: An optical coherence tomography device includes an OCT optical system that irradiates a tissue of the subject's eye with measurement light from a light source, and detects interference between reference light and the measurement light reflected from the tissue by using a detector, and a processor, in which the processor performs a generation process of acquiring A-scan data based on a signal output from the detector in a cycle of 300 kilohertz or more and generating three-dimensional OCT data at any time based on the acquired A-scan data, and performs an analysis process on each piece of the three-dimensional OCT data generated at any time through the generation process, so as to output a real-time analysis result of the three-dimensional OCT data which is generated at any time.Type: GrantFiled: February 2, 2017Date of Patent: March 26, 2019Assignee: NIDEK CO., LTD.Inventors: Naoki Isogai, Hideki Aono, Yukihiro Higuchi, Yuji Murase, Norimasa Satake, Keiji Murata
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Patent number: 10022050Abstract: A terminal device to operate a plurality of ophthalmic apparatuses includes a communication unit to perform communication with the ophthalmic apparatuses, a selection receiving unit to receive a selection command to select at least one ophthalmic apparatus as an operation target to be operated from among the ophthalmic apparatuses, and a control unit to transmit a control signal to the operation target ophthalmic apparatus through the communication unit.Type: GrantFiled: July 28, 2016Date of Patent: July 17, 2018Assignee: NIDEK CO., LTD.Inventor: Naoki Isogai
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Publication number: 20170238798Abstract: An optical coherence tomography device includes an OCT optical system that irradiates a tissue of the subject's eye with measurement light from a light source, and detects interference between reference light and the measurement light reflected from the tissue by using a detector, and a processor, in which the processor performs a generation process of acquiring A-scan data based on a signal output from the detector in a cycle of 300 kilohertz or more and generating three-dimensional OCT data at any time based on the acquired A-scan data, and performs an analysis process on each piece of the three-dimensional OCT data generated at any time through the generation process, so as to output a real-time analysis result of the three-dimensional OCT data which is generated at any time.Type: ApplicationFiled: February 2, 2017Publication date: August 24, 2017Applicant: NIDEK CO., LTD.Inventors: Naoki ISOGAI, Hideki AONO, Yukihiro HIGUCHI, Yuji MURASE, Norimasa SATAKE, Keiji MURATA
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Patent number: 9681803Abstract: A method of observing a three-dimensional image of an examinee's eye to be examined, includes: obtaining a first three-dimensional image which is a three-dimensional image of an anterior segment of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging a measurement light on the anterior segment of the examinee's eye; obtaining a second three-dimensional image which is a three-dimensional image of a fundus of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging the measurement light on the fundus of the examinee's eye by a timing different from a timing of obtaining the first three-dimensional image; constructing a three-dimensional eyeball image of the examinee's eye through image processing based on the obtained first and second three-dimensional images; and displaying the constructed three-dimensional eyeball image on a monitor.Type: GrantFiled: July 28, 2015Date of Patent: June 20, 2017Assignee: NIDEK CO., LTD.Inventors: Naoki Isogai, Masaaki Hanebuchi, Toshio Murata
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Publication number: 20170027445Abstract: A terminal device to operate a plurality of ophthalmic apparatuses includes a communication unit to perform communication with the ophthalmic apparatuses, a selection receiving unit to receive a selection command to select at least one ophthalmic apparatus as an operation target to be operated from among the ophthalmic apparatuses, and a control unit to transmit a control signal to the operation target ophthalmic apparatus through the communication unit.Type: ApplicationFiled: July 28, 2016Publication date: February 2, 2017Applicant: NIDEK CO., LTD.Inventor: Naoki ISOGAI
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Publication number: 20150374228Abstract: The present disclosure relates to an optical coherence tomography (OCT) including: an OCT device, an OCT calculation method, and an OCT calculation program, enabling correlation between images to be easily performed; more specifically it relates to a case where a functional OCT image such as a motion contrast is acquired by using the OCT; acquiring the functional OCT image through a calculation process of an OCT signal is a time-consuming process, for this reason, a long time elapses until the point that a functional OCT image can be observed after OCT imaging is completed, and thus this causes stress to a subject and an examiner; the present disclosure provides an OCT device, an OCT calculation method, and an OCT calculation program, enabling a functional OCT image to be rapidly acquired and enables an examiner to easily perform diagnosis.Type: ApplicationFiled: June 29, 2015Publication date: December 31, 2015Applicant: NIDEK CO., LTD.Inventors: Norimasa SATAKE, Yukihiro HIGUCHI, Yuji MURASE, Yasuhiro FURUUCHI, Hajime NAMIKI, Naoki ISOGAI, Masaaki HANEBUCHI, Naoki TAKENO
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Publication number: 20150327762Abstract: A method of observing a three-dimensional image of an examinee's eye to be examined, includes: obtaining a first three-dimensional image which is a three-dimensional image of an anterior segment of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging a measurement light on the anterior segment of the examinee's eye; obtaining a second three-dimensional image which is a three-dimensional image of a fundus of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging the measurement light on the fundus of the examinee's eye by a timing different from a timing of obtaining the first three-dimensional image; constructing a three-dimensional eyeball image of the examinee's eye through image processing based on the obtained first and second three-dimensional images; and displaying the constructed three-dimensional eyeball image on a monitor.Type: ApplicationFiled: July 28, 2015Publication date: November 19, 2015Inventors: Naoki ISOGAI, Masaaki HANEBUCHI, Toshio MURATA
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Publication number: 20150272431Abstract: There is provided an observation attachment and a display apparatus achieving reduction in a burden of visual line movement of a user. The observation attachment is mounted on a surgical microscope having an eyepiece. The observation attachment includes a mounting member attached to the surgical microscope and a display holding member which holds a display provided with a display screen displayed with information for assisting a work of a user in using the surgical microscope, the information being different from an object's image directly observed through the eyepiece, and places the display screen of the display around the eyepiece of the surgical microscope in an attached state that the mounting member is attached to the surgical microscope.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Inventors: Hironori FUJII, Junpei NISHIYAMA, Naoki ISOGAI, Masahiko KOBAYASHI
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Patent number: 9125593Abstract: A method of observing a three-dimensional image of an examinee's eye to be examined, includes: obtaining a first three-dimensional image which is a three-dimensional image of an anterior segment of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging a measurement light on the anterior segment of the examinee's eye; obtaining a second three-dimensional image which is a three-dimensional image of a fundus of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging the measurement light on the fundus of the examinee's eye by a timing different from a timing of obtaining the first three-dimensional image; constructing a three-dimensional eyeball image of the examinee's eye through image processing based on the obtained first and second three-dimensional images; and displaying the constructed three-dimensional eyeball image on a monitor.Type: GrantFiled: September 28, 2011Date of Patent: September 8, 2015Assignee: NIDEK CO., LTD.Inventors: Naoki Isogai, Masaaki Hanebuchi, Toshio Murata
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Patent number: 8672480Abstract: The ophthalmic photographing apparatus includes an optical scanner for two-dimensionally scanning light and an optical coherence tomography device for obtaining a three-dimensional tomographic image of an examiner's eye. The apparatus also includes an observation optical system for obtaining a front observation image of the eye as a moving image and an observation optical system that obtain a front observation image of the examinee's eye as a moving image. The driving control unit controls the optical coherence tomography device based on a signal from an operation unit. A position on the examinee's eye where the tomographic image is picked up is changeable by using the moving image of the front observation image and the analysis map.Type: GrantFiled: January 31, 2012Date of Patent: March 18, 2014Assignee: Nidek Co., Ltd.Inventors: Naoki Isogai, Toshio Murata, Mitsuo Yamamoto, Norimasa Satake
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Patent number: 8419186Abstract: A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image.Type: GrantFiled: September 30, 2010Date of Patent: April 16, 2013Assignee: Nidek Co., Ltd.Inventors: Naoki Isogai, Toshio Murata
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Publication number: 20120127428Abstract: An ophthalmic photographing apparatus of the present invention is capable of favorably assisting an examiner when a three-dimensional tomographic image is obtained.Type: ApplicationFiled: January 31, 2012Publication date: May 24, 2012Applicant: NIDEK CO., LTD.Inventors: Naoki ISOGAI, Toshio MURATA, Mitsuo YAMAMOTO, Norimasa SATAKE
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Publication number: 20120083667Abstract: A method of observing a three-dimensional image of an examinee's eye to be examined, includes: obtaining a first three-dimensional image which is a three-dimensional image of an anterior segment of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging a measurement light on the anterior segment of the examinee's eye; obtaining a second three-dimensional image which is a three-dimensional image of a fundus of the examinee's eye by optical coherence tomography for obtaining a tomographic image by converging the measurement light on the fundus of the examinee's eye by a timing different from a timing of obtaining the first three-dimensional image; constructing a three-dimensional eyeball image of the examinee's eye through image processing based on the obtained first and second three-dimensional images; and displaying the constructed three-dimensional eyeball image on a monitor.Type: ApplicationFiled: September 28, 2011Publication date: April 5, 2012Applicant: NIDEK CO., LTD.Inventors: Naoki ISOGAI, Masaaki HANEBUCHI, Toshio MURATA
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Publication number: 20110170062Abstract: A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image.Type: ApplicationFiled: September 30, 2010Publication date: July 14, 2011Applicant: NIDEK CO., LTD.Inventors: Naoki ISOGAI, Toshio MURATA
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Patent number: 7824032Abstract: An eye refractive power measurement apparatus for objectively measuring eye refractive power of a patient's eye, includes: a light-projecting optical system that includes a light source and projects measurement light onto a fundus of the patient's eye; a light-receiving optical system that includes an imager device serving as a two-dimensional light-receiving element and receives the measurement light reflected from the fundus; and an operating section that determines the eye refractive power of the eye based on a two-dimensional pattern image by the measurement light imaged by the imager device. The light source is a super-luminescent diode or a laser diode that emits light having a center wavelength in a range of approximately 850 nm to 940 nm.Type: GrantFiled: January 6, 2006Date of Patent: November 2, 2010Assignee: Nidek Co., Ltd.Inventors: Naoki Isogai, Masaaki Hanebuchi, Mitsuhiro Gono, Kenji Nakamura
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Patent number: 7771050Abstract: To provide an ophthalmic apparatus capable of performing efficient measurement of a plurality of eye characteristics of an examinee's eye, which comprises a first measurement unit comprising a first measurement system for performing measurement of a first characteristic of the eye, a second measurement unit comprising a second measurement system for performing measurement of a second characteristic of the eye, a measurement unit in which the measurement units are placed such that heights of first and second measurement axes of the respective systems are different from each other, a movement mechanism unit moving the measurement unit in a vertical direction, and a control unit controlling the mechanism unit such that the height of the first measurement axis at the time of first measurement by the first measurement unit becomes almost the same as that of the second measurement axis at the time of second measurement by the second measurement unit.Type: GrantFiled: April 2, 2007Date of Patent: August 10, 2010Assignee: Nidek Co., Ltd.Inventors: Naoto Honda, Shigekazu Takada, Kazuhiro Yoshimura, Naoki Isogai, Akihiro Hayashi
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Patent number: 7703920Abstract: An ophthalmic apparatus capable of alignment in total automation and manual alignment with an examinee's eye comprising an ophthalmic examination unit, a unit detecting an alignment state of the examination unit with the eye, a main base, a mobile base on which the examination unit is mounted and moved horizontally on the main base through operation of a control member, driving mechanisms moving the examination unit vertically and horizontally with respect to the mobile base, means switching a mode between a manual mode of performing alignment of the examination unit with each eye in sequence through the operation and a fully automatic mode of performing the alignment through driving of the driving mechanisms, and a control unit controlling the driving based on the detection result which starts in the fully automatic mode the driving based on a predetermined trigger signal so as to perform the alignment.Type: GrantFiled: January 30, 2009Date of Patent: April 27, 2010Assignee: Nidek Co., Ltd.Inventors: Naoki Isogai, Kazuhiro Yoshimura
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Patent number: RE49023Abstract: A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image.Type: GrantFiled: April 8, 2015Date of Patent: April 12, 2022Assignee: NIDEK CO., LTD.Inventors: Naoki Isogai, Toshio Murata
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Patent number: RE49024Abstract: A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image.Type: GrantFiled: September 12, 2016Date of Patent: April 12, 2022Assignee: NIDEK CO., LTD.Inventors: Naoki Isogai, Toshio Murata