Patents Assigned to Hoya Corporation
  • Publication number: 20210373432
    Abstract: A mask blank including a light shielding film pattern having high ArF light fastness. The light shielding film is on a transparent substrate. In the mask blank, the light shielding film is a single layer film formed of a material containing silicon and nitrogen, and the light shielding film has an optical density to an ArF excimer laser exposure light of 2.5 or more, a surface reflectance to the exposure light of 40% or less, a back-surface reflectance to the exposure light of 40% or less, a transmittance to a light having a wavelength of 900 nm of 50% or less, an extinction coefficient to a light having a wavelength of 900 nm of 0.04 or more, and a thickness of 60 nm or less.
    Type: Application
    Filed: August 9, 2021
    Publication date: December 2, 2021
    Applicant: HOYA CORPORATION
    Inventor: Hiroaki SHISHIDO
  • Patent number: 11187972
    Abstract: The present invention provides a reflective mask blank and reflective mask capable of reducing the shadowing effect of EUV lithography and forming a fine pattern. As a result, a semiconductor device can be more stably manufactured with high transfer accuracy. The reflective mask blank comprises a multilayer reflective film, an absorber film and an etching mask film on a substrate in that order, wherein the absorber film is made of a material containing nickel (Ni), and the etching mask film is made of a material containing chromium (Cr) or a material containing silicon (Si).
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: November 30, 2021
    Assignee: HOYA CORPORATION
    Inventors: Yohei Ikebe, Tsutomu Shoki
  • Patent number: 11191162
    Abstract: Provided is a circuit board supporting structure capable of easily detaching a circuit board on a base. The circuit board supporting structure is configured to support a circuit board on a base, in which the base has a concave portion formed in a placement surface of the circuit board, and a rotational operation member configured to be rotatably accommodated in the concave portion and extend and retract in a direction perpendicular to the placement surface by a rotational operation, in which the circuit board has a through hole formed at a position corresponding to the concave portion, in which the rotational operation member has a reference surface formed approximately in parallel with the placement surface, and an operation portion formed on a rotational axis of the rotational operation member so as to be exposed from the through hole.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 30, 2021
    Assignee: HOYA CORPORATION
    Inventor: Hiroaki Watanabe
  • Publication number: 20210364909
    Abstract: Provided is a mask blank including a phase shift film. The phase shift film is made of a material containing a non-metallic element and silicon and includes first, second, and third layers; refractive indexes n1, n2, and n3 of the first, second, and third layers, respectively, at the wavelength of an exposure light satisfy the relations of n1<n2 and n2>n3; and extinction coefficients k1, k2, and k3 of the first, second, and third layers, respectively, at the wavelength of an exposure light satisfy the relation of k1>k2>k3.
    Type: Application
    Filed: November 20, 2018
    Publication date: November 25, 2021
    Applicant: HOYA CORPORATION
    Inventors: Osamu NOZAWA, Yasutaka HORIGOME, Hitoshi MAEDA
  • Publication number: 20210364910
    Abstract: In the present invention, an etching stopper film (2), a light-blocking film (3) comprising a material containing one or more elements selected from among silicon and tantalum, and a hard mask film (4) are laminated in that order on a translucent substrate (1). The etching stopper film is made of a material containing chromium, oxygen and carbon, the chromium content is 50 atom % or more, the maximum peak in a N1s narrow spectrum obtained by means of analysis using X-Ray photoelectron spectroscopy is below the detection limit, and a Cr2p narrow spectrum obtained by means of analysis using X-Ray photoelectron spectroscopy has a maximum peak at a bond energy of 574 eV or less.
    Type: Application
    Filed: August 2, 2021
    Publication date: November 25, 2021
    Applicant: HOYA CORPORATION
    Inventors: Ryo OHKUBO, Hiroaki SHISHIDO, Takashi UCHIDA
  • Publication number: 20210338039
    Abstract: This electronic endoscope system includes an evaluation unit that evaluates an extent of a lesion by processing an image inside an organ image-captured by an electronic endoscope. The evaluation unit includes: an image evaluation value calculation unit that calculates an image evaluation value for the captured image; a lesion evaluation unit that calculates a representative evaluation value of image evaluation values from the image evaluation value for each of a plurality of spaces to evaluate the spread of the lesion; and a lesion evaluation adjustment unit that sets, for an empty section for which a representative evaluation value is not generated, as an estimated representative evaluation value, one image evaluation value for a non-empty section, or a representative evaluation value obtained on the basis of the image evaluation value, and that assigns the estimated representative evaluation value to the empty section.
    Type: Application
    Filed: March 26, 2020
    Publication date: November 4, 2021
    Applicant: HOYA CORPORATION
    Inventor: Ryohey KOIZUMI
  • Publication number: 20210338043
    Abstract: This electronic endoscope system includes an evaluation value calculation unit, an assessment unit, and a representative value determination unit. The evaluation value calculation unit is configured so as to obtain an evaluation value indicating an extent of a lesion in biological tissue in each of a plurality of images captured in a predetermined section along the depth direction of a region in an organ. The assessment unit is configured so as to assess whether the extent of the lesion in the section is changed on the basis of the degree of variation of the evaluation value. The representative value determination unit is configured so as to define a representative value of the section representing the evaluation value, in a different method when the extent of the lesion is assessed to be changed and when the extent of the lesion is assessed not to be changed.
    Type: Application
    Filed: April 10, 2020
    Publication date: November 4, 2021
    Applicant: HOYA CORPORATION
    Inventors: Ryohey KOIZUMI, Yosuke IKEMOTO
  • Publication number: 20210338061
    Abstract: Provided is an endoscope capable of suppressing the displacement of a movable optical frame due to bending of a bending portion. An endoscope according this embodiment includes an insertion portion that includes a distal end portion, a bending portion, and a soft portion in order from the distal end side, a movable optical frame (37) that is built in the distal end portion and capable of advancing and retreating in an axial length direction of the insertion portion, an operation coil (13) that is connected to the movable optical frame (37) and capable of advancing and retreating in the axial length direction of the insertion portion, and a protection coil (44) through which the operation coil (13) is inserted and which penetrates at least the bending portion.
    Type: Application
    Filed: February 10, 2020
    Publication date: November 4, 2021
    Applicant: HOYA CORPORATION
    Inventor: Toshiyuki KATAYAMA
  • Publication number: 20210338062
    Abstract: The invention relates to an endoscope head including a camera, a housing element made from transparent material which surrounds the camera at least laterally and at least in portions and extends to the distal end of the endoscope head, and including at least one illumination unit which is arranged laterally from the camera and/or proximally from the camera. The invention further relates to an endoscope comprising such endoscope head.
    Type: Application
    Filed: October 24, 2019
    Publication date: November 4, 2021
    Applicant: HOYA CORPORATION
    Inventor: Anh Minh DO
  • Publication number: 20210341726
    Abstract: The present invention relates to an endoscope including an object, which is to be supplied with electric current, in an endoscope head of the endoscope, and a circuit board for the object to be supplied with electric current. The circuit board extends from the object, which is to be supplied with electric current, in the distal direction of the endoscope head.
    Type: Application
    Filed: October 24, 2019
    Publication date: November 4, 2021
    Applicant: HOYA CORPORATION
    Inventors: Hermann LANDES, Tilman SCHRÖTER
  • Patent number: 11160443
    Abstract: An electronic endoscope device is provided. An electronic endoscope device for obtaining an imaging signal from an imaging device for imaging an object and outputting an image based on the obtained imaging signal is provided with a brightness calculation unit that calculates brightness of the image, and a control unit that changes an exposure time in the imaging device exponentially so that the brightness calculated by the brightness calculation unit approaches set brightness.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: November 2, 2021
    Assignee: HOYA CORPORATION
    Inventor: Takaaki Shoji
  • Patent number: 11161090
    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: Grant
    Filed: December 23, 2019
    Date of Patent: November 2, 2021
    Assignee: HOYA CORPORATION
    Inventor: Shintaro Kobayashi
  • Publication number: 20210333449
    Abstract: An optical element includes a glass body including a colored layer provided inside the glass body and positioned at an optical function surface of the optical element. An optical apparatus including the optical element is also provided.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Applicant: HOYA CORPORATION
    Inventors: Toshiki NAKAMURA, Yutaka TAKAKUBO, Yoshitake TANNO, Yasushi TSUTSUMI, Naomi MATSUMOTO
  • Publication number: 20210327464
    Abstract: A magnetic-disk substrate has an average value of squares of inclinations that is 0.0025 or less, and a frequency at which squares of inclinations are 0.004 or more is 15% or less, in a case where samples of inclinations on a main surface are obtained at intervals of 10 nm. The main surface is configured to receive at least a magnetic recording layer thereon. The magnetic-disk substrate includes an outer circumferential end portion and an inner circumferential end portion, and the outer circumferential end portion and the inner circumferential end portion have chamfered portions.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Applicants: HOYA CORPORATION, HOYA GLASS DISK VIETNAM II LTD.
    Inventors: Masanobu ITAYA, Kinobu OSAKABE, Toshio TAKIZAWA
  • Publication number: 20210321856
    Abstract: An electronic endoscope system includes an electronic endoscope, a processor that includes an evaluation unit, and a monitor. The evaluation unit includes an image evaluation value calculation unit that calculates an image evaluation value indicating an intensity of lesion in the living tissue for each of a plurality of images of the living tissue, and a lesion evaluation unit that calculates a representative evaluation value of the image evaluation value from the image evaluation values of the plurality of images corresponding to a plurality of sections for each of the plurality of sections in which a region of the organ is divided using information of an imaging position in the organ whose image is captured and evaluates an extent of the lesion in a depth direction inside the organ using the representative evaluation value.
    Type: Application
    Filed: September 12, 2019
    Publication date: October 21, 2021
    Applicant: HOYA CORPORATION
    Inventors: Ryohei KOIZUMI, Yousuke IKEMOTO, Takao MAKINO
  • Patent number: 11152026
    Abstract: A substrate for a magnetic disk includes a substrate main body having two main surfaces, and a film that is provided on the main surfaces and is made of a material having a loss factor of 0.01 or more. The substrate for a magnetic disk including the film has a thickness T of 0.700 mm or less, and a thickness D [mm] of the film provided on the main surfaces and the thickness T [mm] of the substrate for a magnetic disk including the film satisfy a relationship D?0.0082/T?0.0015.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 19, 2021
    Assignee: HOYA CORPORATION
    Inventor: Kinobu Osakabe
  • Publication number: 20210318556
    Abstract: An ophthalmic lens and technologies relating to the ophthalmic lens including an intermediate portion that includes a portion in which a power is strengthened and thereafter weakened when the lens is viewed in an X direction from the center toward the periphery, and includes a portion A? in which the power is strengthened and thereafter weakened when the lens is viewed in an X? direction from the center toward the periphery, the X? direction being exactly opposite to the X direction, the power being strengthened in the portion A and the portion A? to be stronger than a far-vision power of a far-vision portion or a near-vision power of a near-vision portion that is arranged in a ring shape along an outer edge of the intermediate portion.
    Type: Application
    Filed: December 10, 2018
    Publication date: October 14, 2021
    Applicant: HOYA CORPORATION
    Inventors: Akira SHIMOJO, Kazuo NAKAZAWA
  • Publication number: 20210311382
    Abstract: Provided is a reflective mask blank that can reduce the shadowing effect of a reflective mask and form a fine and high-precision absorbent body pattern.
    Type: Application
    Filed: August 8, 2019
    Publication date: October 7, 2021
    Applicant: HOYA CORPORATION
    Inventors: Mizuki KATAOKA, Yohei IKEBE
  • Patent number: 11131921
    Abstract: A method of manufacturing a reflective mask blank comprising a multilayer reflective film formed on a substrate so as to reflect EUV light; and a laminated film formed on the multilayer reflective film. The method includes the steps of depositing the multilayer reflective film on the substrate to form a multilayer reflective film formed substrate; carrying out defect inspection for the multilayer reflective film formed substrate; depositing the laminated film on the multilayer reflective film of the multilayer reflective film formed substrate; forming a fiducial mark for an upper portion of the laminated film to thereby form a reflective mask blank comprising the fiducial mark, the fiducial mark serving as a reference for a defect position in defect information; and carrying out defect inspection of the reflective mask blank by using the fiducial mark as a reference.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: September 28, 2021
    Assignee: HOYA CORPORATION
    Inventors: Tsutomu Shoki, Kazuhiro Hamamoto, Yohei Ikebe
  • Publication number: 20210294202
    Abstract: A method of manufacturing a reflective mask blank includes: forming a multilayer reflective film, which is configured to reflect EUV light, on a substrate to form a substrate with a multilayer reflective film; subjecting the substrate with a multilayer reflective film to defect inspection; forming an absorber film, which is configured to absorb the EUV light, on the multilayer reflective film of the substrate with a multilayer reflective film; forming a reflective mask blank, in which an alignment region is formed in an outer peripheral edge region of a pattern formation region by removing the absorber film so that the multilayer reflective film of an area including an element serving as a reference of defect information on the multilayer reflective film is exposed in the alignment region; and performing defect management of the reflective mask blank through use of the alignment region.
    Type: Application
    Filed: May 20, 2021
    Publication date: September 23, 2021
    Applicant: HOYA CORPORATION
    Inventors: Tsutomu SHOKI, Takahiro ONOUE