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).

  • Patent number: 11071452
    Abstract: 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: Grant
    Filed: June 29, 2015
    Date of Patent: July 27, 2021
    Assignee: NIDEK CO., LTD.
    Inventors: Norimasa Satake, Yukihiro Higuchi, Yuji Murase, Yasuhiro Furuuchi, Hajime Namiki, Naoki Isogai, Masaaki Hanebuchi, Naoki Takeno
  • Patent number: 10238281
    Abstract: 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: Grant
    Filed: February 2, 2017
    Date of Patent: March 26, 2019
    Assignee: NIDEK CO., LTD.
    Inventors: Naoki Isogai, Hideki Aono, Yukihiro Higuchi, Yuji Murase, Norimasa Satake, Keiji Murata
  • Patent number: 10022050
    Abstract: 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: Grant
    Filed: July 28, 2016
    Date of Patent: July 17, 2018
    Assignee: NIDEK CO., LTD.
    Inventor: Naoki Isogai
  • Publication number: 20170238798
    Abstract: 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: Application
    Filed: February 2, 2017
    Publication date: August 24, 2017
    Applicant: NIDEK CO., LTD.
    Inventors: Naoki ISOGAI, Hideki AONO, Yukihiro HIGUCHI, Yuji MURASE, Norimasa SATAKE, Keiji MURATA
  • Patent number: 9681803
    Abstract: 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: Grant
    Filed: July 28, 2015
    Date of Patent: June 20, 2017
    Assignee: NIDEK CO., LTD.
    Inventors: Naoki Isogai, Masaaki Hanebuchi, Toshio Murata
  • Publication number: 20170027445
    Abstract: 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: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Applicant: NIDEK CO., LTD.
    Inventor: Naoki ISOGAI
  • Publication number: 20150374228
    Abstract: 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: Application
    Filed: June 29, 2015
    Publication date: December 31, 2015
    Applicant: NIDEK CO., LTD.
    Inventors: Norimasa SATAKE, Yukihiro HIGUCHI, Yuji MURASE, Yasuhiro FURUUCHI, Hajime NAMIKI, Naoki ISOGAI, Masaaki HANEBUCHI, Naoki TAKENO
  • Publication number: 20150327762
    Abstract: 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: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Inventors: Naoki ISOGAI, Masaaki HANEBUCHI, Toshio MURATA
  • Publication number: 20150272431
    Abstract: 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: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Inventors: Hironori FUJII, Junpei NISHIYAMA, Naoki ISOGAI, Masahiko KOBAYASHI
  • Patent number: 9125593
    Abstract: 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: Grant
    Filed: September 28, 2011
    Date of Patent: September 8, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Naoki Isogai, Masaaki Hanebuchi, Toshio Murata
  • Patent number: 8672480
    Abstract: 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: Grant
    Filed: January 31, 2012
    Date of Patent: March 18, 2014
    Assignee: Nidek Co., Ltd.
    Inventors: Naoki Isogai, Toshio Murata, Mitsuo Yamamoto, Norimasa Satake
  • Patent number: 8419186
    Abstract: 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: Grant
    Filed: September 30, 2010
    Date of Patent: April 16, 2013
    Assignee: Nidek Co., Ltd.
    Inventors: Naoki Isogai, Toshio Murata
  • Publication number: 20120127428
    Abstract: An ophthalmic photographing apparatus of the present invention is capable of favorably assisting an examiner when a three-dimensional tomographic image is obtained.
    Type: Application
    Filed: January 31, 2012
    Publication date: May 24, 2012
    Applicant: NIDEK CO., LTD.
    Inventors: Naoki ISOGAI, Toshio MURATA, Mitsuo YAMAMOTO, Norimasa SATAKE
  • Publication number: 20120083667
    Abstract: 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: Application
    Filed: September 28, 2011
    Publication date: April 5, 2012
    Applicant: NIDEK CO., LTD.
    Inventors: Naoki ISOGAI, Masaaki HANEBUCHI, Toshio MURATA
  • Publication number: 20110170062
    Abstract: 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: Application
    Filed: September 30, 2010
    Publication date: July 14, 2011
    Applicant: NIDEK CO., LTD.
    Inventors: Naoki ISOGAI, Toshio MURATA
  • Patent number: 7824032
    Abstract: 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: Grant
    Filed: January 6, 2006
    Date of Patent: November 2, 2010
    Assignee: Nidek Co., Ltd.
    Inventors: Naoki Isogai, Masaaki Hanebuchi, Mitsuhiro Gono, Kenji Nakamura
  • Patent number: 7771050
    Abstract: 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: Grant
    Filed: April 2, 2007
    Date of Patent: August 10, 2010
    Assignee: Nidek Co., Ltd.
    Inventors: Naoto Honda, Shigekazu Takada, Kazuhiro Yoshimura, Naoki Isogai, Akihiro Hayashi
  • Patent number: 7703920
    Abstract: 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: Grant
    Filed: January 30, 2009
    Date of Patent: April 27, 2010
    Assignee: Nidek Co., Ltd.
    Inventors: Naoki Isogai, Kazuhiro Yoshimura
  • Patent number: RE49023
    Abstract: 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: Grant
    Filed: April 8, 2015
    Date of Patent: April 12, 2022
    Assignee: NIDEK CO., LTD.
    Inventors: Naoki Isogai, Toshio Murata
  • Patent number: RE49024
    Abstract: 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: Grant
    Filed: September 12, 2016
    Date of Patent: April 12, 2022
    Assignee: NIDEK CO., LTD.
    Inventors: Naoki Isogai, Toshio Murata