Patents by Inventor Kazuma Yamaguchi

Kazuma Yamaguchi 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: 11949196
    Abstract: A braided part connection structure includes a braided part having a tubular shape covering an insulated wire along a longitudinal direction of the braided part connection structure and a shield member having a tubular shape and electrically connected and fixed to the braided part. The shield member includes a braided part joining portion having a plurality of openings arranged at intervals along a circumferential direction of the shield member in a portion of the shield member in the longitudinal direction, and a welding portion defined by two openings adjacent to each other of the plurality of openings. The braided part covers the braided part joining portion and is welded to the welding portion.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 2, 2024
    Assignee: Yazaki Corporation
    Inventors: Kazuma Watanabe, Hideki Mizuno, Yasuhiro Yamaguchi
  • Patent number: 11872613
    Abstract: A rolling mill of four-high or more is provided that includes: measurement apparatuses that adopt any one roll as a reference roll, and measure at least rolling direction forces acting on roll chocks on a work side and roll chocks on a drive side of each roll other than a backup roll; pressing apparatuses that press the roll chocks in the rolling direction; driving apparatuses that move the roll chocks in the rolling direction; and a position control unit that fixes a rolling direction position of the roll chocks of the reference roll as a reference position, and drives the driving apparatuses to control the positions in the rolling direction of the roll chocks based on a rolling direction force difference so that the rolling direction force difference of each roll is a value within an allowable range.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: January 16, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Atsushi Ishii, Kazuma Yamaguchi, Daisuke Nikkuni
  • Patent number: 11850644
    Abstract: There is provided a zigzagging control method for a workpiece including: an estimation step of, before rolling of a tail portion of the workpiece, acquiring at least any one of an inter-roll thrust force estimated based on an inter-roll cross angle and an inter-roll friction coefficient and a material-roll thrust force estimated based on a material-roll cross angle and a material-roll friction coefficient; and a tail control step of, during the rolling of the tail portion of the workpiece, measuring work-side and drive-side rolling loads, correcting a rolling load difference or a rolling load difference ratio based on any two of acquired parameters including a roll-axis-direction thrust counterforce at the measurement of the rolling loads, the inter-roll thrust force, and the material-roll thrust force, and performing reduction leveling control on a rolling mill based on the corrected rolling load difference or rolling load difference ratio.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 26, 2023
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kazuma Yamaguchi, Atsushi Ishii, Daisuke Nikkuni
  • Patent number: 11819896
    Abstract: There is provided a method for identifying thrust counterforce working point positions of backup rolls of a rolling mill, the method including: changing at least either friction coefficients and inter-roll cross angles between the rolls with an unchanged kiss roll load to cause thrust forces at a plurality of levels to act between the rolls, and measuring thrust counterforces in a roll-axis direction acting on rolls forming at least one of roll pairs other than a roll pair of the backup rolls and measuring backup roll counterforces acting in a vertical direction on the backup rolls at reduction support positions in a kiss roll state; and identifying, based on the measured thrust counterforces, thrust counterforce working point positions of thrust counterforces acting on the backup rolls, using first equilibrium conditional expressions relating to forces acting on the rolls and second equilibrium conditional expressions relating to moments acting on the rolls.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: November 21, 2023
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kazuma Yamaguchi, Atsushi Ishii, Daisuke Nikkuni
  • Publication number: 20230324771
    Abstract: A camera module includes at least one lens, a camera substrate, a lens holder and a joining member. The lens holder is formed of a material not transparent to visible light, and has a lens-holding part and a base part. The lens-holding part is formed in a tubular shape and holds the at least one lens therein. The base part is also formed in a tubular shape and located closer to the camera substrate than the lens-holding part is in an optical axis direction. The joining member is formed of a UV-curable resin, and provided at a location where the camera substrate is joined to the base part of the lens holder or at a location where the lens-holding part and the base part of the lens holder are joined to each other. At least a facing portion of the lens holder, which faces the joining member, has UV transparency.
    Type: Application
    Filed: March 22, 2023
    Publication date: October 12, 2023
    Inventor: Kazuma YAMAGUCHI
  • Patent number: 11716525
    Abstract: A camera module, which is mounted on an inside of a front windshield of a vehicle and to image an external environment of the vehicle, includes a lens unit and an imager to image the external environment by forming an optical image, which is from the external environment through the lens unit.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: August 1, 2023
    Assignee: DENSO CORPORATION
    Inventors: Nobuhisa Shimizu, Yasuki Furutake, Kensuke Chikata, Kazuma Yamaguchi, Yoichi Kajino
  • Publication number: 20220282139
    Abstract: There is provided a photocurable adhesive which is capable of reducing the amount of gas discharged from the cured product. A photocurable adhesive is formulated to be curable by laser light irradiation, The photocurable adhesive contains an epoxy adhesive component, and a light-absorbing component configured to generate heat by laser light irradiation.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 8, 2022
    Applicants: DENSO CORPORATION, ADEKA CORPORATION
    Inventors: Kazuma YAMAGUCHI, Takao IZUMI, Keisuke OTA, Kohei HIRAYAMA, Shinsuke YAMADA, Ryo OGAWA
  • Publication number: 20220282138
    Abstract: There is provided a photocurable adhesive having good deep-section curability. A photocurable adhesive is formulated to be curable by laser light irradiation. The photocurable adhesive contains an epoxy adhesive component and titanium black. The content of the titanium black is 1 ppm by mass or more and 150 ppm by mass or less relative to 100 parts by mass of the epoxy adhesive component. The titanium black may have a primary particle size of 5 nm or more and 150 nm or less.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 8, 2022
    Inventors: Kazuma YAMAGUCHI, Takao IZUMI, Keisuke OTA, Kohei HIRAYAMA, Shinsuke YAMADA, Ryo OGAWA
  • Patent number: 11400499
    Abstract: A method for setting a rolling mill, the method being executed before reduction position zero point adjustment or before the start of rolling, and including: a first process of setting rolls in an open state, and with respect to each of the upper roll assembly and the lower roll assembly, adjusting positions of roll chocks in a rolling direction based on a torque acting on the work roll or a vertical roll load difference; and a second process of, after the first process, setting rolls in a kiss roll state, measuring a vertical roll load in two rotational states on a work side and a drive side, and moving roll chocks of a roll assembly on the opposite side to a reference roll simultaneously and in a same direction so that the vertical roll load difference falls within an allowable range to thereby adjust the positions of the roll chocks.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 2, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Atsushi Ishii, Kazuma Yamaguchi, Daisuke Nikkuni
  • Publication number: 20220225502
    Abstract: A printed circuit board capable of reducing or suppressing connection failure includes a base film made of insulating material, an electric conductor pattern formed on a front surface of the base film, and an insulating cover film covering the electric conductor pattern. The printed circuit board also includes a circuit portion with a circuit formed by the electric conductor pattern, and a pad portion with a bonding pad composed of the electric conductor pattern exposed from the insulating cover film. The pad portion has higher rigidity than the circuit portion.
    Type: Application
    Filed: January 10, 2022
    Publication date: July 14, 2022
    Inventors: Hirokazu SAITO, Soji MASUI, Kazuma YAMAGUCHI
  • Publication number: 20220184679
    Abstract: There is provided a zigzagging control method for a workpiece including: an estimation step of, before rolling of a tail portion of the workpiece, acquiring at least any one of an inter-roll thrust force estimated based on an inter-roll cross angle and an inter-roll friction coefficient and a material-roll thrust force estimated based on a material-roll cross angle and a material-roll friction coefficient; and a tail control step of, during the rolling of the tail portion of the workpiece, measuring work-side and drive-side rolling loads, correcting a rolling load difference or a rolling load difference ratio based on any two of acquired parameters including a roll-axis-direction thrust counterforce at the measurement of the rolling loads, the inter-roll thrust force, and the material-roll thrust force, and performing reduction leveling control on a rolling mill based on the corrected rolling load difference or rolling load difference ratio.
    Type: Application
    Filed: April 10, 2020
    Publication date: June 16, 2022
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kazuma YAMAGUCHI, Atsushi ISHII, Daisuke NIKKUNI
  • Publication number: 20210387241
    Abstract: There is provided a method for identifying thrust counterforce working point positions of backup rolls of a rolling mill, the method including: changing at least either friction coefficients and inter-roll cross angles between the rolls with an unchanged kiss roll load to cause thrust forces at a plurality of levels to act between the rolls, and measuring thrust counterforces in a roll-axis direction acting on rolls forming at least one of roll pairs other than a roll pair of the backup rolls and measuring backup roll counterforces acting in a vertical direction on the backup rolls at reduction support positions in a kiss roll state; and identifying, based on the measured thrust counterforces, thrust counterforce working point positions of thrust counterforces acting on the backup rolls, using first equilibrium conditional expressions relating to forces acting on the rolls and second equilibrium conditional expressions relating to moments acting on the rolls.
    Type: Application
    Filed: August 8, 2019
    Publication date: December 16, 2021
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kazuma YAMAGUCHI, Atsushi ISHII, Daisuke NIKKUNI
  • Patent number: 11150448
    Abstract: A camera module, which is mounted on an inside of a front windshield of a vehicle and to image an external environment of the vehicle, includes a lens unit and an imager to image the external environment by forming an optical image, which is from the external environment through the lens unit.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 19, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yasuki Furutake, Ken Nishioka, Nobuhisa Shimizu, Yoichi Kajino, Kazuma Yamaguchi, Kensuke Chikata, Takeshi Kazama, Soji Masui
  • Patent number: 11140337
    Abstract: A camera is module mounted on an inside of a windshield in a vehicle and is configured to photograph an outside of the vehicle. The camera module includes: a first camera for photographing the outside with a first imaging element through a first lens unit; and a second camera having a view angle narrower than the first camera and photographing the outside with a second imaging element through a second lens unit. The first imaging element and the second imaging element have a same pixel specification.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 5, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yasuki Furutake, Yoichi Kajino, Kazuma Yamaguchi
  • Publication number: 20210229148
    Abstract: A rolling mill of four-high or more is provided that includes: measurement apparatuses that adopt any one roll as a reference roll, and measure at least rolling direction forces acting on roll chocks on a work side and roll chocks on a drive side of each roll other than a backup roll; pressing apparatuses that press the roll chocks in the rolling direction; driving apparatuses that move the roll chocks in the rolling direction; and a position control unit that fixes a rolling direction position of the roll chocks of the reference roll as a reference position, and drives the driving apparatuses to control the positions in the rolling direction of the roll chocks based on a rolling direction force difference so that the rolling direction force difference of each roll is a value within an allowable range.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 29, 2021
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Atsushi ISHII, Kazuma YAMAGUCHI, Daisuke NIKKUNI
  • Publication number: 20210039148
    Abstract: A method for setting a rolling mill, the method being executed before reduction position zero point adjustment or before the start of rolling, and including: a first process of setting rolls in an open state, and with respect to each of the upper roll assembly and the lower roll assembly, adjusting positions of roll chocks in a rolling direction based on a torque acting on the work roll or a vertical roll load difference; and a second process of, after the first process, setting rolls in a kiss roll state, measuring a vertical roll load in two rotational states on a work side and a drive side, and moving roll chocks of a roll assembly on the opposite side to a reference roll simultaneously and in a same direction so that the vertical roll load difference falls within an allowable range to thereby adjust the positions of the roll chocks.
    Type: Application
    Filed: March 4, 2019
    Publication date: February 11, 2021
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Atsushi ISHII, Kazuma YAMAGUCHI, Daisuke NIKKUNI
  • Patent number: 10412282
    Abstract: A camera device which includes a holder which retains an optical member therein and a circuit board on which an image sensor is mounted. The holder is joined to the circuit board using an adhesive agent. The circuit board at least partially includes a metallic layer and a resinous layer stacked in a thickness-wise direction of the circuit board. The circuit board has a metallic layer-absent portion in which the metallic layer is partially omitted. The metallic layer-absent portion is located so as to overlap the joint between the holder and the circuit board in the thickness-wise direction of the circuit board, thereby minimizing the transfer of heat of the adhesive agent to the metallic layer. This achieves effective hardening the adhesive agent, which will facilitate the ease with which the camera device is assembled.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: September 10, 2019
    Assignee: DENSO CORPORATION
    Inventors: Soji Masui, Yasuki Furutake, Daisuke Takama, Kazuma Yamaguchi, Takashi Aoki
  • Publication number: 20190222727
    Abstract: A camera module, which is mounted on an inside of a front windshield of a vehicle and to image an external environment of the vehicle, includes a lens unit and an imager to image the external environment by forming an optical image, which is from the external environment through the lens unit.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Nobuhisa SHIMIZU, Yasuki FURUTAKE, Kensuke CHIKATA, Kazuma YAMAGUCHI, Yoichi KAJINO
  • Publication number: 20190166313
    Abstract: A camera is module mounted on an inside of a windshield in a vehicle and is configured to photograph an outside of the vehicle. The camera module includes: a first camera for photographing the outside with a first imaging element through a first lens unit; and a second camera having a view angle narrower than the first camera and photographing the outside with a second imaging element through a second lens unit. The first imaging element and the second imaging element have a same pixel specification.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Inventors: Yasuki FURUTAKE, Yoichi KAJINO, Kazuma YAMAGUCHI
  • Patent number: 10291830
    Abstract: A camera module, which is mounted on an inside of a front windshield of a vehicle and to image an external environment of the vehicle, includes a lens unit and an imager to image the external environment by forming an optical image, which is from the external environment through the lens unit.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: May 14, 2019
    Assignee: DENSO CORPORATION
    Inventors: Nobuhisa Shimizu, Yasuki Furutake, Kensuke Chikata, Kazuma Yamaguchi, Yoichi Kajino