Patents by Inventor Naoto Honda

Naoto Honda 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: 11078994
    Abstract: A fixing tool of an auto-tensioner includes inwardly inclined engaging pieces inclined inwardly so as to be opposed to respective tapered surfaces of a spring seat and a cylinder of the auto-tensioner. The engaging pieces have concave surfaces that contact the tapered surfaces over a circumferentially extending area. This minimizes the deformation of the engaging pieces such that the diametrical distances therebetween increase due to contact with the tapered surfaces when sandwiching the spring seat and the cylinder with the engaging pieces from the axially opposite directions, thereby preventing the fixing tool from coming off.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: August 3, 2021
    Assignee: NTN CORPORATION
    Inventors: Naoto Honda, Tadahisa Tanaka
  • Publication number: 20200311925
    Abstract: An ophthalmological image processing apparatus acquires a plurality of images of a subject eye photographed in a scanning-type imaging optical system, sets any one of the plurality of images as a template, sets corresponding points or corresponding regions between an image of the subject eye and the template at a plurality of positions of each of the image of the subject eye and the template, calculates a movement amount of each of the corresponding points or each of the corresponding regions, and corrects a distortion of the image of the subject eye with respect to the template based on the movement amount of each of the corresponding points or each of the corresponding regions.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Applicant: NIDEK CO., LTD.
    Inventors: Ryosuke SHIBA, Yoshiki KUMAGAI, Naoto HONDA, Kenshiro FUJIU, Yuji MURASE, Shohei ITO
  • Publication number: 20200100672
    Abstract: An image processor performs a histogram acquisition step of acquiring a histogram representing a distribution of gradation values of pixels in a fundus color image captured by irradiating a fundus with a plurality of beams of single-color light having different wavelengths, the histogram being acquired for each channel corresponding to each beam of single-color light, a histogram correction step of acquiring a corrected histogram by correcting the histogram of each channel acquired in the histogram acquisition step, of which a target pattern is set for each channel in advance, so as to fit to the corresponding target pattern, and a color tone corrected image generation step of generating a color tone corrected image, in which a distribution of gradation values for each channel is represented by the corrected histogram, based on the corrected histogram of each channel.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Applicant: NIDEK CO., LTD.
    Inventors: Yuji MURASE, Naoto HONDA
  • Publication number: 20190154119
    Abstract: A fixing tool of an auto-tensioner includes inwardly inclined engaging pieces inclined inwardly so as to be opposed to respective tapered surfaces of a spring seat and a cylinder of the auto-tensioner. The engaging pieces have concave surfaces that contact the tapered surfaces over a circumferentially extending area. This minimizes the deformation of the engaging pieces such that the diametrical distances therebetween increase due to contact with the tapered surfaces when sandwiching the spring seat and the cylinder with the engaging pieces from the axially opposite directions, thereby preventing the fixing tool from coming off.
    Type: Application
    Filed: May 11, 2017
    Publication date: May 23, 2019
    Applicant: NTN CORPORATION
    Inventors: Naoto HONDA, Tadahisa TANAKA
  • Patent number: 10239306
    Abstract: Provided is a method for manufacturing a sleeve printing plate capable of forming an image pattern which applies printing on an object to be printed by laser engraving without generating cracks and chippings in a printing plate made of a photosensitive resin. The method for manufacturing a sleeve printing plate by making a printing plate made of a photosensitive resin surround an outer peripheral surface of a circular cylindrical sleeve body and forming an image pattern on the printing plate by laser engraving includes the steps of: washing and cooling the printing plate with water; applying heating treatment to the printing plate at a predetermined temperature; and applying heat radiation treatment to the printing plate after the heating treatment.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: March 26, 2019
    Assignees: HONDA CARAX CO., LTD., D. I. ENGINEERING CORPORATION
    Inventor: Naoto Honda
  • Patent number: 10117573
    Abstract: A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 6, 2018
    Assignee: NIDEK CO., LTD.
    Inventors: Koichi Ito, Naoto Honda
  • Publication number: 20170303782
    Abstract: A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 26, 2017
    Applicant: NIDEK CO., LTD.
    Inventors: Koichi ITO, Naoto HONDA
  • Patent number: 9743830
    Abstract: A fundus photography device includes: an OCT optical system configured to detect interference between a measurement light from a fundus of a subject's eye and a reference light from a reference optical path; a fundus photography optical system configured to detect a reflected light from the fundus; a controller configured to generate a tomographic image of the fundus and a first front image of the fundus based on an output signal from the OCT optical system, and generate a second front image of the fundus based on an output signal from the fundus photography optical system. The controller is configured to cause simultaneous display of the first front image and the second front image in different display regions on a monitor.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: August 29, 2017
    Assignee: NIDEK CO., LTD.
    Inventors: Norimasa Satake, Naoto Honda
  • Patent number: 9723978
    Abstract: A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: August 8, 2017
    Assignee: NIDEK CO., LTD.
    Inventors: Koichi Ito, Naoto Honda
  • Publication number: 20170008269
    Abstract: Provided is a method for manufacturing a sleeve printing plate capable of forming an image pattern which applies printing on an object to be printed by laser engraving without generating cracks and chippings in a printing plate made of a photosensitive resin. The method for manufacturing a sleeve printing plate by making a printing plate made of a photosensitive resin surround an outer peripheral surface of a circular cylindrical sleeve body and forming an image pattern on the printing plate by laser engraving includes the steps of: washing and cooling the printing plate with water; applying heating treatment to the printing plate at a predetermined temperature; and applying heat radiation treatment to the printing plate after the heating treatment.
    Type: Application
    Filed: February 26, 2015
    Publication date: January 12, 2017
    Inventor: Naoto HONDA
  • Patent number: 9204792
    Abstract: A corneal endothelial cell photographing apparatus includes: a main unit that includes an illumination optical system, an imaging optical system, and a fixation optical system; a setting unit configured to preliminarily set illumination positions and an illumination order of the plurality of fixation lamps; a controller configured to obtain an endothelial image at a first fixation position, control the fixation optical system corresponding to a determination result for propriety of the endothelial image obtained at the first fixation position to light a fixation lamp corresponding to a second fixation position preliminarily set by the setting unit, and control the illumination optical system and the imaging optical system to obtain an endothelial image at the second fixation position; a monitor configured to display the endothelial image; and an operating unit configured to input a signal for operating at least the controller.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: December 8, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Yusuke Sakashita, Naoto Honda
  • Publication number: 20150272435
    Abstract: A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 1, 2015
    Inventors: Koichi ITO, Naoto HONDA
  • Publication number: 20150272434
    Abstract: A fundus photography device includes: an OCT optical system configured to detect interference between a measurement light from a fundus of a subject's eye and a reference light from a reference optical path; a fundus photography optical system configured to detect a reflected light from the fundus; a controller configured to generate a tomographic image of the fundus and a first front image of the fundus based on an output signal from the OCT optical system, and generate a second front image of the fundus based on an output signal from the fundus photography optical system. The controller is configured to cause simultaneous display of the first front image and the second front image in different display regions on a monitor.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 1, 2015
    Inventors: Norimasa SATAKE, Naoto HONDA
  • Publication number: 20150223689
    Abstract: A corneal endothelial cell photographing apparatus comprises: a main unit including: an illumination optical system for illuminating illumination light from an illumination light source toward a cornea of an examinee's eye from an oblique direction; an imaging optical system for obtaining a corneal endothelial cell image by receiving, through an imaging element, reflection light from the cornea including corneal endothelial cells; and a fixation optical system including a plurality of fixation targets and for guiding a fixation direction of the examinee's eye; a drive unit to relatively move the main unit with respect to the examinee's eye; a serial photographing unit to obtain endothelial images in series at different photographing positions in previously set up-and-down and right-and-left directions; and a monitor to display the obtained endothelial image.
    Type: Application
    Filed: April 23, 2015
    Publication date: August 13, 2015
    Inventors: Naoto HONDA, Michihiro TAKII
  • Patent number: 9039176
    Abstract: A corneal endothelial cell photographing apparatus comprises: a main unit including: an illumination optical system for illuminating illumination light from an illumination light source toward a cornea of an examinee's eye from an oblique direction; an imaging optical system for obtaining a corneal endothelial cell image by receiving, through an imaging element, reflection light from the cornea including corneal endothelial cells; and a fixation optical system including a plurality of fixation targets and for guiding a fixation direction of the examinee's eye; a drive unit to relatively move the main unit with respect to the examinee's eye; a serial photographing unit to obtain endothelial images in series at different photographing positions in previously set up-and-down and right-and-left directions; and a monitor to display the obtained endothelial image.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 26, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Naoto Honda, Michihiro Takii
  • Patent number: 8998410
    Abstract: An apparatus including: a main unit including a system for irradiating illumination light from a light source to a cornea of an eye from an oblique direction and a system for obtaining a corneal endothelial cell image by receiving reflection light from the cornea by a first imaging element; an anterior segment observation optical system including a second imaging element, the anterior segment observation optical system configured to pick up an anterior segment image of the eye by the second imaging element to observe the anterior segment image from front; a controller adapted to turn on the light source and obtain a plurality of picked-up images output from the first imaging element; and a unit adapted to detect an alignment state of the main unit with respect to the eye based on a picked-up image output from the second imaging element during obtaining of the picked-up images by the controller.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 7, 2015
    Assignee: Nidek Co., Ltd.
    Inventors: Michihiro Takii, Naoto Honda
  • Publication number: 20130286350
    Abstract: A corneal endothelial cell photographing apparatus includes: a main unit that includes an illumination optical system, an imaging optical system, and a fixation optical system; a setting unit configured to preliminarily set illumination positions and an illumination order of the plurality of fixation lamps; a controller configured to obtain an endothelial image at a first fixation position, control the fixation optical system corresponding to a determination result for propriety of the endothelial image obtained at the first fixation position to light a fixation lamp corresponding to a second fixation position preliminarily set by the setting unit, and control the illumination optical system and the imaging optical system to obtain an endothelial image at the second fixation position; a monitor configured to display the endothelial image; and an operating unit configured to input a signal for operating at least the controller.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 31, 2013
    Inventors: Yusuke SAKASHITA, Naoto HONDA
  • Publication number: 20130074719
    Abstract: The present invention is a method for producing a sleeve printing plate which is attached to a cylinder of a printing apparatus, including a notch forming step in which, a laser beam is irradiated to the sleeve element assembly while rotating a sleeve element assembly attached to a rotating drum together with the rotating drum, thereby forming a positioning notch which is engaged with a guide pin erected on the cylinder and an image pattern forming step in which the laser beam is irradiated to the sleeve element assembly while rotating the sleeve element assembly attached to the same rotating drum as that of the notch forming step together with the rotating drum, thereby forming an image pattern to be printed on a work piece.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 28, 2013
    Applicant: Universal Can Corporation
    Inventors: Tatsuya Hanafusa, Hiroaki Hashimoto, Naoto Honda
  • Publication number: 20120249958
    Abstract: A corneal endothelial cell photographing apparatus comprises: a main unit including: an illumination optical system for illuminating illumination light from an illumination light source toward a cornea of an examinee's eye from an oblique direction; an imaging optical system for obtaining a corneal endothelial cell image by receiving, through an imaging element, reflection light from the cornea including corneal endothelial cells; and a fixation optical system including a plurality of fixation targets and for guiding a fixation direction of the examinee's eye; a drive unit to relatively move the main unit with respect to the examinee's eye; a serial photographing unit to obtain endothelial images in series at different photographing positions in previously set up-and-down and right-and-left directions; and a monitor to display the obtained endothelial image.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Applicant: NIDEK CO., LTD.
    Inventors: Naoto HONDA, Michihiro TAKII
  • Publication number: 20120086911
    Abstract: An apparatus including: a main unit including a system for irradiating illumination light from a light source to a cornea of an eye from an oblique direction and a system for obtaining a corneal endothelial cell image by receiving reflection light from the cornea by a first imaging element; an anterior segment observation optical system including a second imaging element, the anterior segment observation optical system configured to pick up an anterior segment image of the eye by the second imaging element to observe the anterior segment image from front; a controller adapted to turn on the light source and obtain a plurality of picked-up images output from the first imaging element; and a unit adapted to detect an alignment state of the main unit with respect to the eye based on a picked-up image output from the second imaging element during obtaining of the picked-up images by the controller.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 12, 2012
    Applicant: NIDEK CO., LTD.
    Inventors: Michihiro TAKII, Naoto HONDA