Patents by Inventor Tokio Ueno

Tokio Ueno 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: 10470931
    Abstract: An ophthalmic laser treatment apparatus comprises: an observation optical system; first and second irradiation optical systems to irradiate first and second laser lights for treatment toward a patient's eye; and first and second guide optical systems to irradiate first and second guide lights toward the eye. The second irradiation optical system displaces a condensing position of the second laser light to either one of a position far from of a reference plane on which the observation optical system is focused and a position short of the reference plane, so that a spot size of the second laser light on the reference plane is increased to a larger size than a spot size of the first laser light on the reference plane. The first and second guide optical systems respectively condense the first and second guide lights on the reference plane.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: November 12, 2019
    Assignee: NIDEK CO., LTD.
    Inventors: Takehiro Asakura, Seiki Tomita, Tokio Ueno
  • Publication number: 20170087011
    Abstract: An ophthalmic laser treatment apparatus comprises: an observation optical system; first and second irradiation optical systems to irradiate first and second laser lights for treatment toward a patient's eye; and first and second guide optical systems to irradiate first and second guide lights toward the eye. The second irradiation optical system displaces a condensing position of the second laser light to either one of a position far from of a reference plane on which the observation optical system is focused and a position short of the reference plane, so that a spot size of the second laser light on the reference plane is increased to a larger size than a spot size of the first laser light on the reference plane. The first and second guide optical systems respectively condense the first and second guide lights on the reference plane.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 30, 2017
    Applicant: NIDEK CO., LTD.
    Inventors: Takehiro ASAKURA, Seiki TOMITA, Tokio UENO
  • Patent number: 9398849
    Abstract: An ophthalmic apparatus includes: a light projecting optical system to project light to each point on a fundus of an examinee's eye; a light receiving optical system including a light receiving element to receive light from the fundus emitted from each point on the fundus resulting from the light projected from the light projecting optical system; and a controller for controlling the ophthalmic apparatus, wherein the controller is configured to: acquire intensity information representing intensity of the light from the fundus corresponding to each point on the fundus based on a result of received light of the light receiving element; and analyze a degree of opacity in an optic media of the examinee's eye based on the intensity information.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: July 26, 2016
    Assignee: NIDEK CO., LTD.
    Inventors: Tokio Ueno, Katsuyasu Mizuno, Junichi Akita
  • Publication number: 20150238074
    Abstract: A method, system, and computer program product are disclosed for diagnosing a condition of an eye such as macular degeneration and/or cataracts. The system may include an optical system, which may project light at an eye and record lipofuscin fluorescence from a retina of the eye to form an image of the retina. A computing device may process the image to apply one or more image acceptance criteria and/or one or more image clarity criteria. If the image fails to meet the one or more image acceptance criteria, the image may be re-taken. Based on the level of conformance of the image to the one or more image clarity criteria, the system may indicate that the macular pigment level cannot be provided with confidence, indicate that the eye likely has one or more cataracts, and/or calculate and provide the macular pigment content based on a correction factor, if needed.
    Type: Application
    Filed: March 11, 2014
    Publication date: August 27, 2015
    Applicant: Image Technologies Corporation
    Inventors: Mohsen Sharifzadeh, Werner Gellermann, Masayuki Yoshino, Tokio Ueno, Masahiko Kobayashi
  • Patent number: 9078595
    Abstract: An ophthalmic laser treatment apparatus includes a light interference optical unit, an irradiation unit, a luminance transition information detecting unit, a focused state detecting unit, and a guide unit. The light interference optical unit is configured to acquire a depth profile of a patient's eye tissue. The luminance transition information detecting unit is configured to control a first focus position adjusting unit to shift a focus position of a measurement light to acquire a depth profile in each focus position. The focused state detecting unit is configured to detect a focused state in the patient's eye tissue based on luminance transition information acquired by the luminance transition information detecting unit. The guide unit is configured to guide a focus position of a laser beam to be adjusted based on a result of detection of the focused state detecting unit.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: July 14, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Hiroki Yokosuka, Tokio Ueno, Naho Murakami, Seiji Taki, Koichi Ito
  • Patent number: 8899751
    Abstract: A method for obtaining a tomographic image of a fundus by optical coherence tomography includes the steps of setting a line, based on which the fundus tomographic image is to be obtained, on a first front image of the fundus, the first front image being a still image, establishing a positional correspondence between a second front image of the fundus and the first front image by matching the first and second front images, specifying a line on the second front image based on positional information on the line set on the first front image, and the established positional correspondence, and obtaining the fundus tomographic image that corresponds to the lines on the first and second front images by scanning measurement light with the use of an optical scanner provided to an interference optical system.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: December 2, 2014
    Assignee: Nidek Co., Ltd
    Inventor: Tokio Ueno
  • Publication number: 20140333896
    Abstract: An ophthalmic apparatus includes: a light projecting optical system to project light to each point on a fundus of an examinee's eye; a light receiving optical system including a light receiving element to receive light from the fundus emitted from each point on the fundus resulting from the light projected from the light projecting optical system; and a controller for controlling the ophthalmic apparatus, wherein the controller is configured to: acquire intensity information representing intensity of the light from the fundus corresponding to each point on the fundus based on a result of received light of the light receiving element; and analyze a degree of opacity in an optic media of the examinee's eye based on the intensity information.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 13, 2014
    Applicant: NIDEK CO., LTD.
    Inventors: Tokio UENO, Katsuyasu MIZUNO, Junichi AKITA
  • Patent number: 8556423
    Abstract: A method for obtaining a tomographic image of a fundus by optical coherence tomography includes the steps of setting a line, based on which the fundus tomographic image is to be obtained, on a first front image of the fundus, the first front image being a still image, establishing a positional correspondence between a second front image of the fundus and the first front image by matching the first and second front images, specifying a line on the second front image based on positional information on the line set on the first front image, and the established positional correspondence, and obtaining the fundus tomographic image that corresponds to the lines on the first and second front images by scanning measurement light with the use of an optical scanner provided to an interference optical system.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 15, 2013
    Assignee: Nidek Co., Ltd.
    Inventor: Tokio Ueno
  • Publication number: 20130261612
    Abstract: An ophthalmic laser treatment apparatus includes a light interference optical unit, an irradiation unit, a luminance transition information detecting unit, a focused state detecting unit, and a guide unit. The light interference optical unit is configured to acquire a depth profile of a patient's eye tissue. The luminance transition information detecting unit is configured to control a first focus position adjusting unit to shift a focus position of a measurement light to acquire a depth profile in each focus position. The focused state detecting unit is configured to detect a focused state in the patient's eye tissue based on luminance transition information acquired by the luminance transition information detecting unit. The guide unit is configured to guide a focus position of a laser beam to be adjusted based on a result of detection of the focused state detecting unit.
    Type: Application
    Filed: September 11, 2012
    Publication date: October 3, 2013
    Applicant: NIDEK CO., LTD.
    Inventors: Hiroki YOKOSUKA, Tokio UENO, Naho MURAKAMI, Seiji TAKI, Koichi ITO
  • Publication number: 20130250237
    Abstract: A method for obtaining a tomographic image of a fundus by optical coherence tomography includes the steps of setting a line, based on which the fundus tomographic image is to be obtained, on a first front image of the fundus, the first front image being a still image, establishing a positional correspondence between a second front image of the fundus and the first front image by matching the first and second front images, specifying a line on the second front image based on positional information on the line set on the first front image, and the established positional correspondence, and obtaining the fundus tomographic image that corresponds to the lines on the first and second front images by scanning measurement light with the use of an optical scanner provided to an interference optical system.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Applicant: NIDEK CO., LTD.
    Inventor: Tokio UENO
  • Publication number: 20110299037
    Abstract: A method for obtaining a tomographic image of a fundus by optical coherence tomography includes the steps of setting a line, based on which the fundus tomographic image is to be obtained, on a first front image of the fundus, the first front image being a still image, establishing a positional correspondence between a second front image of the fundus and the first front image by matching the first and second front images, specifying a line on the second front image based on positional information on the line set on the first front image, and the established positional correspondence, and obtaining the fundus tomographic image that corresponds to the lines on the first and second front images by scanning measurement light with the use of an optical scanner provided to an interference optical system.
    Type: Application
    Filed: August 11, 2011
    Publication date: December 8, 2011
    Applicant: NIDEK CO., LTD.
    Inventor: Tokio Ueno
  • Patent number: 8025402
    Abstract: To provide an ophthalmic photographing apparatus capable of checking a measurement (photographing) position of a tomographic (cross-sectional) image of a fundus on a front (surface) image of the fundus. The ophthalmic photographing apparatus has a first optical system for obtaining a tomographic image of a fundus by optical coherence tomography using low coherent light, a second optical system for obtaining a visible front image of the fundus, a third optical system for obtaining an infrared front image of the fundus, a monitor, setting means which sets a line for obtaining a two-dimensional tomographic image of the fundus on the infrared front image displayed on the monitor, and control means which establishes a positional correspondence between the infrared front image on which the line is set and the visible front image, and displays a line on the visible front image displayed on the monitor.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 27, 2011
    Assignee: Nidek Co., Ltd.
    Inventor: Tokio Ueno
  • Publication number: 20100315590
    Abstract: To provide an ophthalmic photographing apparatus capable of checking a measurement (photographing) position of a tomographic (cross-sectional) image of a fundus on a front (surface) image of the fundus. The ophthalmic photographing apparatus has a first optical system for obtaining a tomographic image of a fundus by optical coherence tomography using low coherent light, a second optical system for obtaining a visible front image of the fundus, a third optical system for obtaining an infrared front image of the fundus, a monitor, setting means which sets a line for obtaining a two-dimensional tomographic image of the fundus on the infrared front image displayed on the monitor, and control means which establishes a positional correspondence between the infrared front image on which the line is set and the visible front image, and displays a line on the visible front image displayed on the monitor.
    Type: Application
    Filed: August 20, 2010
    Publication date: December 16, 2010
    Applicant: NIDEK CO., LTD.
    Inventor: Tokio Ueno
  • Patent number: 7768651
    Abstract: An optical coherence tomography apparatus based on spectral interference where object information can be speedily obtained and an information acquisition range in a depth direction can be enlarged, and an ophthalmic apparatus.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: August 3, 2010
    Assignee: Nidek Co., Ltd.
    Inventors: Tokio Ueno, Masaaki Hanebuchi
  • Patent number: 7557928
    Abstract: An apparatus using optical coherence tomography based on spectral interference and an ophthalmic apparatus, which can accurately obtain information on an object in a depth direction by correcting misalignment between an optical member of a spectral optical system and a photodetector, includes an interference optical system for irradiating measurement light being low coherent light onto the object and synthesizing the measurement light reflected from the object and reference light being low coherent light to interfere, a spectral optical system which disperses interference light for every frequency, a photodetector photo-receiving the dispersed interference light, means guiding calibration light for adjusting alignment between the spectral optical system and the photodetector to the spectral optical system, means storing reference spectral information, and means adjusting the alignment based on a comparison between spectral information on the calibration light guided to the spectral optical system and photo-re
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: July 7, 2009
    Assignee: NIDEK Co., Ltd.
    Inventor: Tokio Ueno
  • Publication number: 20090115964
    Abstract: To provide an ophthalmic photographing apparatus capable of checking a measurement (photographing) position of a tomographic (cross-sectional) image of a fundus on a front (surface) image of the fundus. The ophthalmic photographing apparatus has a first optical system for obtaining a tomographic image of a fundus by optical coherence tomography using low coherent light, a second optical system for obtaining a visible front image of the fundus, a third optical system for obtaining an infrared front image of the fundus, a monitor, setting means which sets a line for obtaining a two-dimensional tomographic image of the fundus on the infrared front image displayed on the monitor, and control means which establishes a positional correspondence between the infrared front image on which the line is set and the visible front image, and displays a line on the visible front image displayed on the monitor.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 7, 2009
    Applicant: NIDEK CO., LTD.
    Inventor: Tokio Ueno
  • Patent number: 7510282
    Abstract: An ophthalmic photographing apparatus which is easy to use and can simultaneously display OCT and SLO images as moving images while lightening a burden upon an examinee, the apparatus including an interference optical system having a first light source and a first scanning device which scans an examinee's eye with light from the first light source and obtaining a tomographic image of the eye, and a confocal optical system having a second light source and a second scanning device which scans the eye with light from the second light source and obtaining a front image of the eye, a changeover device which substantially makes a changeover of the light which is irradiated onto the eye alternately between the first light and the second light, a display device, and a display control unit displaying the images side by side as moving images on the display device.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: March 31, 2009
    Assignee: Nidek Co., Ltd.
    Inventors: Tokio Ueno, Toshio Murata
  • Publication number: 20080024721
    Abstract: An ophthalmic photographing apparatus which is easy to use and can simultaneously display OCT and SLO images as moving images while lightening a burden upon an examinee, the apparatus including an interference optical system having a first light source and a first scanning device which scans an examinee's eye with light from the first light source and obtaining a tomographic image of the eye, and a confocal optical system having a second light source and a second scanning device which scans the eye with light from the second light source and obtaining a front image of the eye, a changeover device which substantially makes a changeover of the light which is irradiated onto the eye alternately between the first light and the second light, a display device, and a display control unit displaying the images side by side as moving images on the display device.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 31, 2008
    Applicant: NIDEK CO., LTD.
    Inventors: Tokio Ueno, Toshio Murata
  • Publication number: 20070127033
    Abstract: An apparatus using optical coherence tomography based on spectral interference and an ophthalmic apparatus, which can accurately obtain information on an object in a depth direction by correcting misalignment between an optical member of a spectral optical system and a photodetector, includes an interference optical system for irradiating measurement light being low coherent light onto the object and synthesizing the measurement light reflected from the object and reference light being low coherent light to interfere, a spectral optical system which disperses interference light for every frequency, a photodetector photo-receiving the dispersed interference light, means guiding calibration light for adjusting alignment between the spectral optical system and the photodetector to the spectral optical system, means storing reference spectral information, and means adjusting the alignment based on a comparison between spectral information on the calibration light guided to the spectral optical system and photo-re
    Type: Application
    Filed: November 30, 2006
    Publication date: June 7, 2007
    Applicant: NIDEK CO., LTD.
    Inventor: Tokio Ueno
  • Publication number: 20060066869
    Abstract: An optical coherence tomography apparatus based on spectral interference where object information can be speedily obtained and an information acquisition range in a depth direction can be enlarged, and an ophthalmic apparatus.
    Type: Application
    Filed: September 28, 2005
    Publication date: March 30, 2006
    Applicant: Nidek Co., Ltd.
    Inventors: Tokio Ueno, Masaaki Hanebuchi