Patents by Inventor Takuya Nohara

Takuya Nohara 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: 11938547
    Abstract: A turning tool includes: a holder portion; and a cutting edge portion fixed to the holder portion, wherein the cutting edge portion is composed of a synthetic single-crystal diamond, and the cutting edge portion has a nose curvature having a curvature radius of more than or equal to 0.1 mm and less than or equal to 1.2 mm, and the nose curvature satisfies at least one of a condition that a direction of a line of intersection between the rake face and a bisecting cross section of a vertex angle of the nose curvature is within ±10° relative to a <110> direction of the synthetic single-crystal diamond, and a condition that the direction of the line of intersection between the rake face and the bisecting cross section of the vertex angle of the nose curvature is within ±10° relative to a <100> direction of the synthetic single-crystal diamond.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 26, 2024
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Akihiko Ueda, Takuya Nohara, Yutaka Kobayashi
  • Patent number: 11172146
    Abstract: An imaging apparatus includes: an infrared light source; and a solid-state imaging device. The solid-state imaging device includes: light receivers that convert incident light from the subject to signal charges; a signal storage that stores the signal charges; a signal drain into which the signal charges are discharged; microlenses disposed on the light receivers; and openings through which the incident light enters the light receivers. The solid-state imaging device reads and discharges the signal charges in response to a signal drain voltage being switched between on and off. Each microlens is disposed such that the center of the microlens is displaced toward the center of the pixel array from the center of the corresponding light receiver, as the position of the microlens is closer to the perimeter of the pixel array. The openings have different shapes according to the positions of the openings in the pixel array.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: November 9, 2021
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Takuya Asano, Takuya Nohara
  • Publication number: 20210268562
    Abstract: A tool with a through hole includes a base and a diamond component held by the base, and when the length of the diamond component along a center line of the through hole is denoted as L1 and the maximum value of a diameter of a circle having the same area as a region surrounded by an outer edge of the diamond component in a cross section having the center line as a normal line is denoted as M1, the ratio L1/M1 between L1 and M1 is 0.8 or more.
    Type: Application
    Filed: June 25, 2019
    Publication date: September 2, 2021
    Inventors: Takuya NOHARA, Akihiko UEDA, Yutaka KOBAYASHI, Yoshiki NISHIBAYASHI
  • Publication number: 20200316691
    Abstract: A turning tool includes: a holder portion; and a cutting edge portion fixed to the holder portion, wherein the cutting edge portion is composed of a synthetic single-crystal diamond, and the cutting edge portion has a nose curvature having a curvature radius of more than or equal to 0.1 mm and less than or equal to 1.2 mm, and the nose curvature satisfies at least one of a condition that a direction of a line of intersection between the rake face and a bisecting cross section of a vertex angle of the nose curvature is within ±10° relative to a <110> direction of the synthetic single-crystal diamond, and a condition that the direction of the line of intersection between the rake face and the bisecting cross section of the vertex angle of the nose curvature is within ±10° relative to a <100> direction of the synthetic single-crystal diamond.
    Type: Application
    Filed: August 2, 2019
    Publication date: October 8, 2020
    Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Akihiko UEDA, Takuya NOHARA, Yutaka KOBAYASHI
  • Patent number: 10737943
    Abstract: Provided is a method for manufacturing a single-crystal diamond, the method including the steps of: forming a protective film on at least a part of a surface of an auxiliary plate; preparing a diamond seed crystal substrate; disposing an auxiliary plate with a protective film that has the protective film formed on the auxiliary plate, and a diamond seed crystal substrate in a chamber; and growing a single-crystal diamond on a principal surface of the diamond seed crystal substrate by a chemical vapor deposition method while introducing a carbon-containing gas into the chamber.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: August 11, 2020
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Takuya Nohara, Natsuo Tatsumi, Yoshiki Nishibayashi, Hitoshi Sumiya, Yutaka Kobayashi, Akihiko Ueda
  • Publication number: 20200216974
    Abstract: A single-crystal diamond includes n types of regions different in total concentration of an impurity, the n types of regions being observed in an observed surface being in parallel to a (110) face. Each of the n types of regions has an area not smaller than 0.1 ?m2. At least one of a first line, a second line, and a third line on the observed surface crosses a boundary between the n types of regions at least four times. The first line, the second line, and the third line are in parallel to a <?110> direction and have a length of 1 mm. A midpoint of the first line corresponds to the center of gravity of the observed surface. The second line and the third line are distant from the first line by 300 ?m in a <001> direction and a <00?1> direction, respectively.
    Type: Application
    Filed: September 14, 2018
    Publication date: July 9, 2020
    Applicants: Sumitomo Electric Industries, Ltd., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Natsuo TATSUMI, Yoshiki NISHIBAYASHI, Takuya NOHARA, Akihiko UEDA, Yutaka KOBAYASHI
  • Patent number: 10655514
    Abstract: In order to be able to easily check the state of foreign matter contained in oil regardless of an installation location, a device main body 10 having a housing chamber 11 in which oil is stored, a plug 20 attached to a bottom portion of the housing chamber 11 in a state where an end surface of a shaft portion 20a faces upward, a spacer member 30 formed by a transparent member and arranged on the plug 20 in such a manner that one end surface 30a faces an inside of the housing chamber 11; and an imaging unit 40 arranged on the plug 20, the imaging unit 40 imaging the inside of the housing chamber 11 via the spacer member 30 are provided.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 19, 2020
    Assignee: KOMATSU LTD.
    Inventors: Shuuji Hori, Hiroyuki Chikugo, Mutsumi Ono, Takuya Nohara, Yuta Baba, Toshiyuki Matsumoto
  • Patent number: 10569317
    Abstract: A single-crystal diamond includes a pair of main surfaces facing each other, an impurity concentration being changed along a first direction in each of the main surfaces.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: February 25, 2020
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshiki Nishibayashi, Natsuo Tatsumi, Takuya Nohara, Yutaka Kobayashi, Akihiko Ueda
  • Publication number: 20200036913
    Abstract: An imaging apparatus includes: an infrared light source; and a solid-state imaging device. The solid-state imaging device includes: light receivers that convert incident light from the subject to signal charges; a signal storage that stores the signal charges; a signal drain into which the signal charges are discharged; microlenses disposed on the light receivers; and openings through which the incident light enters the light receivers. The solid-state imaging device reads and discharges the signal charges in response to a signal drain voltage being switched between on and off. Each microlens is disposed such that the center of the microlens is displaced toward the center of the pixel array from the center of the corresponding light receiver, as the position of the microlens is closer to the perimeter of the pixel array. The openings have different shapes according to the positions of the openings in the pixel array.
    Type: Application
    Filed: October 2, 2019
    Publication date: January 30, 2020
    Inventors: Takuya ASANO, Takuya NOHARA
  • Publication number: 20190031515
    Abstract: Provided is a method for manufacturing a single-crystal diamond, the method including the steps of: forming a protective film on at least a part of a surface of an auxiliary plate; preparing a diamond seed crystal substrate; disposing an auxiliary plate with a protective film that has the protective film formed on the auxiliary plate, and a diamond seed crystal substrate in a chamber; and growing a single-crystal diamond on a principal surface of the diamond seed crystal substrate by a chemical vapor deposition method while introducing a carbon-containing gas into the chamber.
    Type: Application
    Filed: January 18, 2017
    Publication date: January 31, 2019
    Inventors: Takuya Nohara, Natsuo Tatsumi, Yoshiki Nishibayashi, Hitoshi Sumiya, Yutaka Kobayashi, Akihiko Ueda
  • Publication number: 20180245490
    Abstract: In order to be able to easily check the state of foreign matter contained in oil regardless of an installation location, a device main body 10 having a housing chamber 11 in which oil is stored, a plug 20 attached to a bottom portion of the housing chamber 11 in a state where an end surface of a shaft portion 20a faces upward, a spacer member 30 formed by a transparent member and arranged on the plug 20 in such a manner that one end surface 30a faces an inside of the housing chamber 11; and an imaging unit 40 arranged on the plug 20, the imaging unit 40 imaging the inside of the housing chamber 11 via the spacer member 30 are provided.
    Type: Application
    Filed: October 28, 2016
    Publication date: August 30, 2018
    Inventors: Shuuji Hori, Hiroyuki Chikugo, Mutsumi Ono, Takuya Nohara, Yuta Baba, Toshiyuki Matsumoto
  • Publication number: 20180236515
    Abstract: A single-crystal diamond includes a pair of main surfaces facing each other, an impurity concentration being changed along a first direction in each of the main surfaces.
    Type: Application
    Filed: October 14, 2016
    Publication date: August 23, 2018
    Inventors: Yoshiki Nishibayashi, Natsuo Tatsumi, Takuya Nohara, Yutaka Kobayashi, Akihiko Ueda
  • Patent number: 9599225
    Abstract: A blocking configuration of an oil pressure circuit hole includes a plug screwed together with an aperture end portion of the oil pressure circuit hole provided to a main body. The plug includes: a shaft portion; an external thread portion disposed on a leading end of the shaft portion; an O-ring mounted on an outer periphery of a base end portion of the shaft portion and pressed between the outer periphery of the shaft portion and an inner periphery of the oil pressure circuit hole to seal them; a flange portion having an external diameter larger than that of the shaft portion and disposed on a part of a base end side of a storage groove on which the O-ring is mounted; and a polygonal column-shaped head portion on which a tightening tool is mounted and disposed on a part of a base end side of the flange portion.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: March 21, 2017
    Assignee: Komatsu Ltd.
    Inventors: Takuya Nohara, Hiroyuki Chikugo, Shuuji Hori, Mitsumasa Akashi
  • Publication number: 20160245408
    Abstract: A blocking configuration of an oil pressure circuit hole includes a plug screwed together with an aperture end portion of the oil pressure circuit hole provided to a main body. The plug includes: a shaft portion; an external thread portion disposed on a leading end of the shaft portion; an O-ring mounted on an outer periphery of a base end portion of the shaft portion and pressed between the outer periphery of the shaft portion and an inner periphery of the oil pressure circuit hole to seal them; a flange portion having an external diameter larger than that of the shaft portion and disposed on a part of a base end side of a storage groove on which the O-ring is mounted; and a polygonal column-shaped head portion on which a tightening tool is mounted and disposed on a part of a base end side of the flange portion.
    Type: Application
    Filed: January 7, 2014
    Publication date: August 25, 2016
    Applicant: KOMATSU LTD.
    Inventors: Takuya Nohara, Hiroyuki Chikugo, Shuuji Hori, Mitsumasa Akashi
  • Patent number: 8399947
    Abstract: A solid-state imaging device includes photoelectric conversion units, vertical transfer units including vertical transfer electrodes, a horizontal transfer unit, a distribution transfer unit including distribution transfer electrodes, and first light-shield layers and second light-shield layers provided on the vertical transfer units and the distribution transfer unit. The first light-shield layers and the second light-shield layers are conductive. The first light-shield layers are provided in a layer different from a layer in which the second light-shield layers are provided. At least one of the first light-shield layers serves as an interconnect electrically connected to the vertical transfer electrodes included in the same row, and at least one of the first light-shield layers on the distribution transfer unit serves as an interconnect electrically connected the distribution transfer electrodes. The first light-shield layers are disposed so as not to overlap with the horizontal transfer unit.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Takuya Asano, Yoshiaki Kato, Takuya Nohara, Sei Suzuki
  • Publication number: 20110316109
    Abstract: A solid-state imaging device includes photoelectric conversion units, vertical transfer units including vertical transfer electrodes, a horizontal transfer unit, a distribution transfer unit including distribution transfer electrodes, and first light-shield layers and second light-shield layers provided on the vertical transfer units and the distribution transfer unit. The first light-shield layers and the second light-shield layers are conductive. The first light-shield layers are provided in a layer different from a layer in which the second light-shield layers are provided. At least one of the first light-shield layers serves as an interconnect electrically connected to the vertical transfer electrodes included in the same row, and at least one of the first light-shield layers on the distribution transfer unit serves as an interconnect electrically connected the distribution transfer electrodes. The first light-shield layers are disposed so as not to overlap with the horizontal transfer unit.
    Type: Application
    Filed: September 7, 2011
    Publication date: December 29, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Takuya ASANO, Yoshiaki KATO, Takuya NOHARA, Sei SUZUKI
  • Publication number: 20110261240
    Abstract: A solid-imaging device including an output unit of the FDA type and capable of generating accurate image signals and consuming less power is provided which includes: photoelectric conversion elements; a vertical CCD unit vertically transferring signal charges converted by the photoelectric conversion elements; a front-stage horizontal CCD unit horizontally transferring the signal charges, according to 4-phase drive signals having a 50% duty cycle; a rear-stage horizontal CCD unit disposed between the front-stage horizontal CCD unit and the output unit and horizontally transferring, according to 2-phase drive signals, the signal charges horizontally transferred from the front-stage horizontal CCD unit; a horizontal driver circuit generating the 4-phase drive signals; and a vertical/horizontal driver circuit generating the 2-phase drive signals, wherein the voltage amplitude of the 4-phase drive signals is smaller than the voltage amplitude of the 2-phase drive signals.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 27, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Takuya NOHARA, Sei SUZUKI
  • Patent number: D957484
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: July 12, 2022
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventor: Takuya Nohara
  • Patent number: D977540
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: February 7, 2023
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Takuya Nohara, Mayuka Segawa, Soichiro Kakinoki, Yoshinori Tanigawa, Gaku Harada, Takashi Harada, Satoru Kukino, Akihiko Ueda