Patents Assigned to Hoya Corporation
  • Publication number: 20200371421
    Abstract: A reflective mask blank which is able to produce a reflective mask that is capable of forming a fine and highly accurate transfer pattern by further reducing the shadowing effects of the reflective mask. A reflective mask blank which sequentially comprises, on a substrate, a multilayer reflective film and an absorbent film in this order, and which is characterized in that the absorbent film is formed from a material that contains a first material which has a refractive index n of 0.99 or more for EUV light and a second material which has an extinction coefficient k of 0.035 or more for EUV light.
    Type: Application
    Filed: November 21, 2018
    Publication date: November 26, 2020
    Applicant: HOYA CORPORATION
    Inventors: Yohei IKEBE, Takahiro ONOUE
  • Publication number: 20200364866
    Abstract: An endoscope system includes a processor including an image processing unit that obtains an inflammation evaluation value in which a degree of inflammation of a biological tissue is digitized on the basis of information of a color component of an image of the biological tissue, from the image that is obtained by imaging the biological tissue, and a monitor displaying the inflammation evaluation value. The image processing unit includes a blood vessel region determination unit obtaining certainty of a blood vessel region of the biological tissue in the image, a pixel evaluation value generation unit obtaining a pixel evaluation value by performing digitization processing with respect to each of the pixels of the image, a pixel evaluation value adjustment unit calculating an adjustment value in which the pixel evaluation value is reduced as the certainty of the blood vessel region increases.
    Type: Application
    Filed: February 4, 2019
    Publication date: November 19, 2020
    Applicant: HOYA CORPORATION
    Inventor: Takao MAKINO
  • Patent number: 10827914
    Abstract: An endoscope system generates first to third color image data by imaging biological tissue illuminated with first to third light. The endoscope system uses a first light intensity ratio of the first light and the second light, and/or an imaging sensitivity of the image sensor, to correct a first ratio between multiple components of the first and second color image data, and the endoscope system calculates a first characteristic amount of the biological tissue based on the first corrected ratio. Furthermore, the endoscope system uses a second light intensity ratio between the second light and the third light to correct a second ratio between multiple components of the second and third color image data, and the endoscope system calculates a second characteristic amount of the biological tissue based on the second corrected ratio and the first characteristic amount.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: November 10, 2020
    Assignee: HOYA CORPORATION
    Inventor: Masaaki Fukuda
  • Publication number: 20200345205
    Abstract: A processor for an electronic endoscope includes: a region detection unit configured to detect an enhancement processing target region to be enhanced from pixel information of a captured image of a living tissue; and an enhancement processing unit configured to perform enhancement processing on the enhancement processing target region detected by the region detection unit. The region detection unit is configured to repeat a candidate extraction process of extracting a focused pixel as a candidate for an enhancement processing target region when a signal level value of the focused pixel is smaller than signal level values of two farthest pixels located on both sides farthest from the focused pixel in any one of a plurality of pixel array directions in a region surrounded by a frame surrounding a region with the focused pixel as a center while changing a size of the frame.
    Type: Application
    Filed: November 2, 2018
    Publication date: November 5, 2020
    Applicant: HOYA CORPORATION
    Inventors: Takao MAKINO, Jurgen GLATZ
  • Patent number: 10806335
    Abstract: A processor of an endoscope system uses components of color image data of biological tissue illuminated by at least two types of light to generate an oxygen saturation distribution image of hemoglobin in the biological tissue and to calculate a certainty of an oxygen saturation. Furthermore, the processor controls a display mode of the oxygen saturation distribution image according to the degree of the certainty. The certainty drops if the value of a first component a of the color image data is lower than a lower limit threshold value. The certainty drops if the value of a second component b of the color image data is greater than an upper limit threshold value. The lower limit threshold value and the upper limit threshold value are values of two different pieces of color image data.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 20, 2020
    Assignee: HOYA CORPORATION
    Inventor: Masaaki Fukuda
  • Patent number: 10806330
    Abstract: A single use endoscope device which is inserted inside a subject includes: a distal end portion which includes at least an imaging element; an operation unit which operates an operation of the endoscope device; a curved portion which can be curved inside the subject by operating the operation unit; a fractured portion which detaches the distal end portion from the curved portion; and a soft portion which is extended from the operation unit to the curved portion. The distal end portion, the curved portion and the soft portion are inserted in the subject, the operation unit, the curved portion, and the soft portion are discarded after use of the endoscope device, and the distal end portion and at least the imaging element included in the distal end portion are reused.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 20, 2020
    Assignee: HOYA CORPORATION
    Inventors: Takayoshi Morishima, Kohei Iketani, Keiji Ito
  • Patent number: 10799339
    Abstract: There is provided an intraocular lens injector configured to inject an intraocular lens 7 having an optical portion 8 and a pair of support portions 9a, 9b extending from the optical portion 8 into an eye, including: an injector main body 2 having a lens setting portion 6 on which the intraocular lens 7 is set; a holding portion 14 that holds a tip end part of a front support portion 9a of the pair of support portions 9a, 9b, which is disposed in front of the lens setting portion 6; and a guide mechanism (11c, 14a) that guides the optical portion 8 to pass under the holding portion 14 when the intraocular lens 7 is pushed out by the pushing member 5 so that the optical portion 8 is displaced downward relatively to the front support portion 9a held by the holding portion 14.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: October 13, 2020
    Assignee: Hoya Corporation
    Inventor: Kazunori Kudo
  • Patent number: 10799338
    Abstract: A wide range depth of focus vortex IOL or other optical device or element and processes for manufacturing same.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: October 13, 2020
    Assignee: Hoya Corporation
    Inventor: Tjundewo Lawu
  • Publication number: 20200315720
    Abstract: An embodiment of the invention is an endoscopy system with newly designed docking block, brake control, wire tension adjustment, bending angle sensor, memory chip data storage, valve control, imaging lens cleaning, optimized lumen arrangement and distal position sensor. The docking block can have a one-touch retaining mechanism. Braking control can be accessed by the endoscopist at the hand grip or knobs. Wire tension can be relaxed or tightened in response to surgeon or endoscopist control. Bending angle sensors can protect surgical instruments. Memory chip can store usage data of the endoscope. Multiple valves can have priority control. Lenses can be cleaned with one touch of a button. Lumens can be arranged to maximize imaging and lighting angles. Position markers accompanied with sensors can position the distal end of the endoscope automatically in the optimal position.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Applicants: ENDOMASTER PTE LTD, HOYA CORPORATION
    Inventors: Tae Zar Lwin, Isaac David Penny, Christopher Lee Shih Hao Sam Soon, Tomonori Yamamoto, Naoyuki Naito, Tetsu Hirayama, Takahiro Kobayashi
  • Patent number: 10791973
    Abstract: An analysis device includes a wavelength selection unit that alternatively extracts first special light and second special light from light emitted from the light source device, an image sensor that includes a RGB color filter, and a signal processing unit. In this configuration, the first special light includes light in a first wavelength region and the second special light includes light in a second wavelength region that is different from the first wavelength region. The signal processing unit calculates an indicator that indicates a feature amount of biological tissue based on a pixel signal that corresponds to the light in the first wavelength region and a pixel signal that corresponds to the light in the second wavelength region, and generates a color captured image based on a pixel signal that corresponds to light that passes through the RGB color filter.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: October 6, 2020
    Assignee: HOYA CORPORATION
    Inventors: Yoshimi Obara, Toru Chiba
  • Publication number: 20200310239
    Abstract: A substrate with a multilayer reflective film, a reflective mask blank, a reflective mask and a method of manufacturing a semiconductor device can prevent contamination of the surface of the multilayer reflective film even in the case of having formed reference marks on the multilayer reflective film. A substrate with a multilayer reflective film contains a substrate, a multilayer reflective film that reflects EUV light formed on the substrate, and a protective film formed on the multilayer reflective film. Reference marks are formed to a concave shape on the surface of the protective film. A surface layer of the reference marks contains an element that is the same as at least one of the elements contained in the protective film. A shrink region, where at least a portion of the plurality of films contained in the multilayer reflective film are shrunk, is formed at the bottom of the reference marks.
    Type: Application
    Filed: October 16, 2018
    Publication date: October 1, 2020
    Applicant: HOYA CORPORATION
    Inventors: Kazuhiro HAMAMOTO, Tsutomu SHOKI, Yohei IKEBE
  • Publication number: 20200310244
    Abstract: The substrate with a multilayer reflective film includes a substrate and the multilayer reflective film configured to reflect exposure light, the multilayer reflective film comprising a stack of alternating layers on a substrate, the alternating layers including a low refractive index layer and a high refractive index layer, in which the multilayer reflective film contains molybdenum (Mo) and at least one additive element selected from nitrogen (N), boron (B), carbon (C), zirconium (Zr), oxygen (O), hydrogen (H) and deuterium (D), and the crystallite size of the multilayer reflective film calculated from a diffraction peak of Mo (110) by X-ray diffraction is 2.5 nm or less.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Applicant: HOYA CORPORATION
    Inventors: Masanori NAKAGAWA, Hirofumi KOZAKAI
  • Patent number: 10783921
    Abstract: In order to suppress the occurrence of adhesion between magnetic disks and spacers when the magnetic disks and the spacers are removed from a hard disk drive apparatus in which the magnetic disks and the spacers are installed, a surface roughness Ra of a main surface of a ring-shaped glass spacer to be arranged in contact with a magnetic disk is set to be not larger than 1.0 ?m, and an average inclination R?a of the main surface is set to be at least 0.02.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: September 22, 2020
    Assignee: HOYA CORPORATION
    Inventors: Masao Takano, Shinji Eda
  • Publication number: 20200285144
    Abstract: In a mask blank in which a thin film formed of a material consisting of silicon and nitrogen is formed on a transparent substrate, when the thin film is analyzed by secondary ion mass spectrometry to obtain in-depth distribution of a secondary ion intensity of silicon in counts per second, a slope of the secondary ion intensity of silicon with respect to depth in a direction toward the transparent substrate is less than one hundred fifty counts per second per nanometer in an internal region of the thin film other than a substrate neighborhood region and a surface region.
    Type: Application
    Filed: September 6, 2018
    Publication date: September 10, 2020
    Applicant: HOYA CORPORATION
    Inventors: Hitoshi MAEDA, Hiroaki SHISHIDO
  • Publication number: 20200285040
    Abstract: The objective lens unit includes, a front lens group having a negative refractive power, a diaphragm, and a rear lens group having a positive refractive power, in order from an object side. The front lens group includes a negative lens having a concave surface facing an image surface side, and a positive lens having a convex surface facing the object side, and the rear lens group includes a positive lens having a convex surface facing the image surface side and a cemented lens in which a positive lens and a negative lens are cemented. The endoscope objective lens unit satisfies ?1.6<fF/fR<?1.2 and ?1.3<f3/fF<?0.7. Note that fF and fR are focal lengths of the entire system of the front lens group and the rear lens group, and f3 is a focal length of a positive lens, in the rear lens group.
    Type: Application
    Filed: September 7, 2018
    Publication date: September 10, 2020
    Applicant: HOYA CORPORATION
    Inventors: Hiroaki FUJII, Sachiko NASU
  • Publication number: 20200258217
    Abstract: A processor for an electronic endoscope includes an enhancement processing unit that includes: a depth data generation unit configured to generate depth data D of the entire captured image by generating a data value representing information on a depth of a concave portion of the living tissue in each pixel; an undulation-enhanced data generation unit configured to generate a value of undulation-enhanced data S, which has information with a steeply inclined change of a signal level value at a boundary between a concave portion and a convex portion of surface irregularities of the living tissue, from the depth data D; and an enhancement processing execution unit that generates an enhanced image by adding or subtracting at least a value to or from a signal level value of the processing target pixel on which the enhancement processing of the captured image is performed.
    Type: Application
    Filed: October 24, 2018
    Publication date: August 13, 2020
    Applicant: HOYA CORPORATION
    Inventor: Takao MAKINO
  • Publication number: 20200249558
    Abstract: A substrate with a multilayer reflective film, a reflective mask blank, a reflective mask and a method of manufacturing a semiconductor device that can prevent contamination of the surface of the multilayer reflective film even in the case of having formed reference marks on the multilayer reflective film. A substrate with a multilayer reflective film contains a substrate and a multilayer reflective film that reflects EUV light formed on the substrate. Reference marks are formed to a concave shape on the surface of the substrate with the multilayer reflective film. The reference marks have grooves or protrusions roughly in the center. The shape of the grooves or protrusions when viewed from overhead is similar or roughly similar to the shape of the reference marks.
    Type: Application
    Filed: October 16, 2018
    Publication date: August 6, 2020
    Applicant: HOYA CORPORATION
    Inventors: Kazuhiro HAMAMOTO, Tsutomu SHOKI
  • Patent number: D892832
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: August 11, 2020
    Assignee: HOYA CORPORATION
    Inventor: Koki Onuma
  • Patent number: D892833
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: August 11, 2020
    Assignee: HOYA CORPORATION
    Inventor: Koki Onuma
  • Patent number: D892834
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: August 11, 2020
    Assignee: HOYA CORPORATION
    Inventor: Koki Onuma