Patents Assigned to Hoya Corporation
  • Patent number: 12290408
    Abstract: An electronic endoscope system includes: an electronic endoscope including, at a distal end portion, an image sensor that captures an image of a living tissue, and an ultrasound probe that applies ultrasonic waves to the living tissue to obtain an echo signal; a captured image processor including an image processing unit that processes an imaging signal output from the image sensor and generates a captured image; and an ultrasonic image processor including an ultrasonic image processing unit that processes the echo signal output from the ultrasound probe and generates an ultrasonic image, a noise detection unit that detects a periodic noise component included in the echo signal and generated at a level equal to or higher than a preset threshold level, and a noise suppression unit that performs processing of suppressing the detected noise component.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: May 6, 2025
    Assignee: HOYA CORPORATION
    Inventor: Masayuki Hagiwara
  • Publication number: 20250139816
    Abstract: A program causes a computer to execute processing including: acquiring information regarding a respiratory phase of a subject; acquiring a three-dimensional medical image obtained by capturing an inside of a body of the subject in synchronization with the respiratory phase; acquiring an endoscopic image of the subject from a lung field endoscope; specifying a position of the lung field endoscope in the three-dimensional medical image synchronized with the respiratory phase; and outputting the specified position of the lung field endoscope in association with the three-dimensional medical image.
    Type: Application
    Filed: August 23, 2022
    Publication date: May 1, 2025
    Applicant: HOYA CORPORATION
    Inventors: Akihiko NISHIDE, Junko SUGAI, Satsuki AMANO
  • Publication number: 20250134648
    Abstract: An ophthalmic lens includes an optical portion that includes near-vision and far-vision portions respectively having near-vision and far-vision powers, and an annular intermediate portion connecting the near-vision and far-vision portions, a central optical portion which is the near-vision or far-vision portion being arranged at the center and an outer optical portion which is the portion that is not arranged at the center being arranged in a ring shape along an outer edge of the intermediate portion, the ophthalmic lens having a front surface arranged on an object side and a rear surface opposed to the front surface, the front surface being a composite surface including progressive and toric surfaces, a cylinder power of the near-vision portion being equal to an astigmatism correction power set in the near-vision portion, and a cylinder power of the far-vision portion being equal to an astigmatism correction power set in the far-vision portion.
    Type: Application
    Filed: February 21, 2023
    Publication date: May 1, 2025
    Applicant: HOYA CORPORATION
    Inventor: Akira SHIMOJO
  • Patent number: 12285152
    Abstract: A program causes a computer communicatively connected to an endoscope apparatus provided with a master endoscope and a slave endoscope to execute processing, including acquiring a master endoscope image of a subject from the master endoscope, acquiring a slave endoscope image of the subject from the slave endoscope, and correcting a color tone of at least either one endoscope image of the master endoscope image and the slave endoscope image so as to reduce a difference in color tone between the master endoscope image and the slave endoscope image that have been acquired.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: April 29, 2025
    Assignee: HOYA CORPORATION
    Inventors: Akihiko Nishide, Junko Sugai
  • Patent number: 12277710
    Abstract: A program causes a computer to perform processing of: acquiring an endoscopic image obtained by capturing a subject using an endoscope; extracting region-of-interest information from the acquired endoscopic image; acquiring a three-dimensional medical image obtained by capturing an inside of a body of the subject using at least one of X-ray CT, X-ray cone beam CT, MRI-CT, and an ultrasonic diagnostic device; deriving position information in a coordinate system of the three-dimensional medical image specified by the region-of-interest information and the three-dimensional medical image; and storing the region-of-interest information and the three-dimensional medical image in association with each other based on the derived position information and a capturing time point of each of the endoscopic image and the three-dimensional medical image.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: April 15, 2025
    Assignee: HOYA CORPORATION
    Inventors: Akihiko Nishide, Junko Sugai
  • Publication number: 20250114166
    Abstract: For purpose of providing a removal tool and a removal system with high operability in which the removal tool is manually set in a channel of a precise and small endoscopic treatment tool and removes an adhering substance adhered to an inside of the channel, the removal tool for removing the adhering substance adhered to the inside of the channel of the endoscopic treatment tool is configured to include: a bottomed cylindrical body having an opening at one end; and an elongated part formed in a hollow portion of the bottomed cylindrical body so as to extend from a bottom of the hollow portion toward an opening side of the hollow portion, which is capable of inserting into the channel, and the hollow portion of the bottomed cylindrical body expands from the bottom side toward the opening.
    Type: Application
    Filed: March 10, 2023
    Publication date: April 10, 2025
    Applicant: HOYA CORPORATION
    Inventor: Noriyuki SUGITA
  • Patent number: 12268558
    Abstract: An electronic endoscope system according to a first embodiment includes an electronic endoscope, a captured image processor, and an ultrasonic image processor. The electronic endoscope has, at a distal tip thereof, an image sensor, and an ultrasonic probe that repeatedly applies ultrasonic waves to sequentially obtain echo signals. The ultrasonic image processor has a noise detection unit that detects a noise component which is contained in a first echo signal among the echo signals and which is periodically generated at or above a preset threshold level, and a noise inhibition unit that generates a noise inhibition component which, by being added to a second echo signal outputted after the first echo signal, inhibits generation of the noise component in the second echo signal, and that adds the noise inhibition component to the second echo signal.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: April 8, 2025
    Assignee: HOYA CORPORATION
    Inventor: Masayuki Hagiwara
  • Patent number: 12262876
    Abstract: An endoscope having a convex observation optical system at the distal end of an insertion portion is provided with an air supply/water supply nozzle for injecting a cleaning fluid toward the observation optical system. The air supply/water supply nozzle is provided with a plurality of outlets from which the fluid is emitted in directions not intersecting with each other.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 1, 2025
    Assignee: HOYA CORPORATION
    Inventor: Toshiki Watanabe
  • Patent number: 12266389
    Abstract: A magnetic-disk substrate according to an embodiment includes two main surfaces and an outer circumferential edge surface. In the magnetic-disk substrate, the outer circumferential edge surface includes two chamfered surfaces that are respectively connected to the main surfaces, and a side wall surface that is curved and extends to protrude outward between the two chamfered surfaces. The side wall surface has a radius of curvature of 1100 ?m or more on a cross-section of the magnetic-disk substrate extending along a plate thickness direction of the magnetic-disk substrate.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: April 1, 2025
    Assignee: HOYA CORPORATION
    Inventors: Shuhei Azuma, Toshio Takizawa
  • Publication number: 20250098950
    Abstract: A processor for an endoscope, includes: an imaging signal acquisition unit that acquires an imaging signal from an image sensor; and a dimming unit that controls a light source that illuminates an observation visual field based on the imaging signal, in which the dimming unit includes: a luminance index acquisition unit that acquires, based on the imaging signal, a first index related to a luminance of a first color and a second index related to a luminance of a second color; a generation unit that generates a photometric signal based on the first index and the second index; and a dimming output unit that outputs a dimming signal to the light source based on the photometric signal.
    Type: Application
    Filed: April 20, 2023
    Publication date: March 27, 2025
    Applicant: HOYA CORPORATION
    Inventor: Yoshihiro HAYASHI
  • Publication number: 20250090001
    Abstract: An endoscope with an insertion tube having a proximal passive flexible section and a distal bending section. Cuts are provided in the proximal passive flexible section. Adjacent cuts are unequally spaced in the proximal passive flexible section. The proximal passive flexible section has secondary cuts adjacent to main cuts, wherein the secondary cuts are arranged closer in the longitudinal direction of the proximal passive flexible section to the adjacent main cuts on one side of the secondary cuts than to the adjacent main cuts on the other side of the secondary cuts. The main cuts extend along the circumference of the proximal passive flexible section in an interrupted manner. The proximal passive flexible section includes the main cuts, wherein at least within a subzone in the proximal passive flexible section, the main cuts are unequally spaced from each other in the longitudinal direction of the proximal passive flexible section.
    Type: Application
    Filed: November 2, 2022
    Publication date: March 20, 2025
    Applicant: HOYA CORPORATION
    Inventor: Anh Minh DO
  • Patent number: 12252633
    Abstract: Letting a particle diameter be Dx (?m) when a cumulative particle volume cumulated from the small particle diameter side reaches x (%) of the total particle volume in a particle size distribution obtained regarding cerium oxide included in a polishing liquid using a laser diffraction/scattering method, D5 is 1 ?m or less, D100 is 3 ?m or more, D50 is 0.8 to 2.4 ?m, and Dpeak?D5 is less than D95?Dpeak.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: March 18, 2025
    Assignee: HOYA CORPORATION
    Inventor: Toshio Takizawa
  • Publication number: 20250082425
    Abstract: Provided is a medical-device hook to be attached to a medical device including a tubular portion to be inserted into a body lumen, the medical-device hook including: an inset opening allowing the tubular portion to be inset into the inset opening; and a surrounding portion around the inset opening, the surrounding portion being configured to deform elastically to come in close contact with the tubular portion inset in the inset opening such that the tubular portion is held due to frictional resistance on a closely contacted portion between the surrounding portion around the inset opening and the tubular portion.
    Type: Application
    Filed: March 24, 2023
    Publication date: March 13, 2025
    Applicant: HOYA CORPORATION
    Inventor: Noriyuki SUGITA
  • Patent number: 12245745
    Abstract: An elevator attachment attachable to and detachable from an endoscope including an inclined surface inclined relative to a longitudinal direction of an insertion part, an elevator recess having a first inner wall and a second inner wall that faces the first inner wall and being opened toward the inclined surface and a lever pivotally provided inside the elevator recess, and the elevator attachment comprises a holding body including an inclined surface plate covering a part of the inclined surface, a first plate raising from an edge of the inclined surface plate and located along the first inner wall and a second plate abutting against the second inner wall, and an elevator pivotally supported between the first plate and the second plate and including a lever connection part to be connected to the lever.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: March 11, 2025
    Assignee: HOYA CORPORATION
    Inventors: Tetsuya Tarumoto, Takahiro Hatoma
  • Patent number: 12245742
    Abstract: An endoscope is provided which has a high insertability, that is, is easy to insert. The endoscope includes an insertion unit having a first area in which an attenuation rate of a repulsive force generated when bent is a positive value of 30% or lower. More preferably, the attenuation rate of the first area is 10% or higher and 30% or lower. The first area is in a range of 200 mm to 800 mm from a distal end side of the insertion unit.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: March 11, 2025
    Assignee: HOYA CORPORATION
    Inventor: Kensei Somekawa
  • Patent number: 12228852
    Abstract: A reflective mask blank comprises a substrate; a multilayer reflective film which is formed on the substrate and reflects EUV light; and a layered film which is formed on the multilayer reflective film. The layered film has an absolute reflectance of 2.5% or less with respect to EUV light, and comprises a first layer and a second layer that is formed on the first layer; and the first layer comprises a phase shift film which shifts the phase of EUV light. Alternatively, the layered film is a phase shift film which comprises a first layer and a second layer that is formed on the first layer, and which shifts the phase of EUV light; and the first layer comprises an absorption layer that has an absolute reflectance of 2.5% or less with respect to EUV light.
    Type: Grant
    Filed: December 4, 2023
    Date of Patent: February 18, 2025
    Assignee: HOYA CORPORATION
    Inventor: Yohei Ikebe
  • Patent number: 12226077
    Abstract: There is provided a program causing a computer to execute processing including: acquiring an endoscopic image of a subject from an endoscope; acquiring a three-dimensional medical image obtained by capturing an image of an internal body portion of the subject by means of X-ray CT, X-ray cone beam CT, MRI-CT, or an ultrasonic diagnosis apparatus configured to capture a three-dimensional image of an internal body portion of the subject; generating a virtual endoscopic image reconfigured from the three-dimensional medical image, based on the acquired endoscopic image; calculating distance image information in the endoscopic image based on the virtual endoscopic image and the endoscopic image; and outputting operation assistance information on an operation of the endoscope based on the distance image information and the three-dimensional medical image.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: February 18, 2025
    Assignee: HOYA CORPORATION
    Inventors: Akihiko Nishide, Junko Sugai
  • Publication number: 20250050306
    Abstract: The present invention provides that powder is mainly constituted from secondary particles of hydroxyapatite. The secondary particles are obtained by drying a slurry containing primary particles of hydroxyapatite and aggregates thereof and granulating the primary particles and the aggregates. A bulk density of the powder is 0.65 g/mL or more and a specific surface area of the secondary particles is 70 m2/g or more. The powder of the present invention has high strength and is capable of exhibiting superior adsorption capability when it is used for an adsorbent an adsorption apparatus has.
    Type: Application
    Filed: October 25, 2024
    Publication date: February 13, 2025
    Applicant: HOYA CORPORATION
    Inventor: Shintaro KOBAYASHI
  • Publication number: 20250053077
    Abstract: Provided is a mask blank having a structure in which a pattern-forming thin film, a first hard mask film, and a second hard mask film are stacked in this order on a main surface of a substrate. The pattern-forming thin film contains at least one element selected from silicon and transition metals. The first hard mask film contains chromium. The second hard mask film contains tantalum. The tantalum of the second hard mask film contains tantalum that is unsaturated with oxygen. The thickness of the pattern-forming thin film is 20 nm or more. The thickness of the first hard mask film is 15 nm or less. The thickness of the second hard mask film is 10 nm or less.
    Type: Application
    Filed: November 25, 2022
    Publication date: February 13, 2025
    Applicant: HOYA CORPORATION
    Inventors: Osamu NOZAWA, Yasutaka HORIGOME
  • Publication number: 20250044677
    Abstract: The present invention addresses the problem of providing a mask blank that makes it possible to further miniaturize a mask pattern or a hard mask pattern and improving the pattern quality, and to resolve this problem, a mask blank (100) has a structure in which a thin film (3) for pattern formation and a hard mask film (4) are laminated in this order on a transparent substrate (1), wherein the hard mask film (4) is configured so that a narrow spectrum of Si2p obtained by analysis by X-ray photoelectron spectroscopy has a maximum peak at a binding energy of 103 eV or more, a maximum peak of a narrow spectrum of N1s obtained by analysis by X-ray photoelectron spectroscopy is equal to or less than a detection lower limit value, and the content ratio (atomic %) of silicon and oxygen is less than Si:O=1:2.
    Type: Application
    Filed: October 17, 2024
    Publication date: February 6, 2025
    Applicant: HOYA CORPORATION
    Inventors: Hiroaki SHISHIDO, Ryo OHKUBO, Osamu NOZAWA