Patents by Inventor Yusuke Fujiwara

Yusuke Fujiwara 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).

  • Publication number: 20240396471
    Abstract: A gradationally controlled voltage inverter, which is a power conversion device, controls a gate impedance of a main inverter before a capacitor voltage VDCS of a sub-inverter is controlled at a predetermined voltage so as to be larger than a gate impedance of the main inverter after the capacitor voltage VDCS of the sub-inverter is controlled at the predetermined voltage. This reduces the noise caused by the main inverter when the capacitor voltage VDCS of the sub-inverter is not controlled at the predetermined voltage.
    Type: Application
    Filed: July 7, 2021
    Publication date: November 28, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ryota ASAKURA, Yusuke SHIROUCHI, Kenji FUJIWARA, Tetsuya KOJIMA
  • Publication number: 20240383802
    Abstract: The present invention relates to a chemically strengthened glass having a sheet thickness t (mm), a compressive stress layer depth DOC of 180×t (?m) or more, CS30-50 which is a compressive stress integrated value at a depth of 30 ?m to 50 ?m from a surface of the chemically strengthened glass of 12000 Pa·m or less, and CS90 which is a compressive stress value at a depth of 90 ?m from the surface of 175×t?88 (MPa) or more.
    Type: Application
    Filed: May 14, 2024
    Publication date: November 21, 2024
    Applicant: AGC Inc.
    Inventors: Kaname SEKIYA, Seiji INABA, Yusuke FUJIWARA, Yusuke KATAOKA
  • Publication number: 20240383801
    Abstract: A chemically strengthened glass having a thickness t [mm], in which a compressive stress layer depth DOC [?m] is 160t [?m] or more, and a value CS90/ICT [?m?1] obtained by dividing CS90 [MPa] which is a compressive stress value at a depth of 90 ?m from a surface of the chemically strengthened glass by a tensile stress integrated value ICT [MPa·?m] is 0.0012 ?m?1 or more.
    Type: Application
    Filed: May 9, 2024
    Publication date: November 21, 2024
    Applicant: AGC Inc.
    Inventors: Yusuke KATAOKA, Yusuke FUJIWARA
  • Publication number: 20240368032
    Abstract: A chemically strengthened glass has a thickness of more than 2 mm, a surface compressive stress CS0 of 400 MPa to 1200 MPa, a depth of compressive stress layer DOL-tail of 2.7 ?m to 30.0 ?m, an absolute value of an average slope of a stress profile from a surface to the DOL-tail of 20 MPa/?m to 500 MPa/?m, and a tensile stress CT of 1.0 MPa to 16 MPa.
    Type: Application
    Filed: July 17, 2024
    Publication date: November 7, 2024
    Applicant: AGC Inc.
    Inventors: Yusuke FUJIWARA, Yoichi TAKATO, Yusuke KOBAYASHI, Masao OZEKI, Yusuke MORISHIMA, Takumi NAGASAKO
  • Publication number: 20240360032
    Abstract: A chemically strengthened glass has a thickness of more than 2 mm, a surface compressive stress CS0 of 400 MPa to 1200 MPa, a depth of compressive stress layer DOL-tail of 2.7 ?m to 30.0 ?m, an absolute value of an average slope of a stress profile from a surface to the DOL-tail of 20 MPa/?m to 500 MPa/?m, and a tensile stress CT of 1.0 MPa to 16 MPa.
    Type: Application
    Filed: July 10, 2024
    Publication date: October 31, 2024
    Applicant: AGC Inc.
    Inventors: Yusuke FUJIWARA, Yoichi TAKATO, Yusuke KOBAYASHI, Masao OZEKI, Yusuke MORISHIMA, Takumi NAGASAKO
  • Publication number: 20240356460
    Abstract: A power conversion device which converts power from a power supply and supplies the converted power to a load, includes: a first inverter including first capacitors and a plurality of switching elements; a second inverter including a plurality of switching elements, and second capacitors to which voltages smaller than voltages of the first capacitors are applied; and a control device. The control device performs control with dead times applied to the plurality of switching elements, and performs control so that a voltage variation width of combined voltage of output voltage of the first inverter and output voltage of the second inverter during a dead time period is reduced.
    Type: Application
    Filed: September 3, 2021
    Publication date: October 24, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yusuke SHIROUCHI, Ryota ASAKURA, Kenji FUJIWARA
  • Patent number: 12123175
    Abstract: A display mode of a picked-up image in a central image output device 2210 (specified image output device) is variably controlled so as to display all of respective specified portions PPL and PPR of a pair of pillars 4240L and 4240R configuring a cab 424 in the central image output device 2210 (specified image output device). The specified portions PPL and PPR are part of the pillars 4240L and 4240R overlapping a specified image region R that extends in a belt shape between left and right bezels 2210L and 2210R.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: October 22, 2024
    Assignee: Kobelco Construction Machinery Co., Ltd.
    Inventors: Masaki Otani, Yusuke Fujiwara, Seiji Saiki, Yoichiro Yamazaki
  • Publication number: 20240345432
    Abstract: The present invention pertains to a glass having a first main surface and a second main surface opposite to the first main surface. The glass has a thick region and a thin region that is adjacent to the thick region, has a recessed surface in the second main surface, and is thinner than the thick region. The thin region includes: a bottom region which is flat on the second main surface side in a state where the first main surface is fixed so as to make contact with a flat surface; and a stepped region provided between the bottom region and the thick region. The thin region satisfies a specific formula (1).
    Type: Application
    Filed: June 25, 2024
    Publication date: October 17, 2024
    Applicant: AGC Inc.
    Inventors: Yuji IMOTO, Yusuke FUJIWARA
  • Publication number: 20240327276
    Abstract: The present invention relates to a chemically strengthened glass having a thickness t (mm), in which a first-order derivative CSx? of a stress value CSx (MPa) is ?4.7 or larger in a range of CSx?0 in a profile of the stress value CSx (MPa), in which the stress value CSx (MPa) is a function of depth x (?m) from a glass surface, and in which the stress value CSx (MPa) is measured by a scattered light photoelastic stress meter, and a manufacturing method thereof.
    Type: Application
    Filed: June 7, 2024
    Publication date: October 3, 2024
    Applicant: AGC INC.
    Inventors: Kaname SEKIYA, Yusuke FUJIWARA
  • Patent number: 12104352
    Abstract: A compaction management system includes a position calculation unit that, when a bucket is pressed against a compaction target ground, calculates a position of the bucket, a rolling compaction force calculation unit that, when the bucket is pressed against the compaction target ground, calculates a rolling compaction force applied to the compaction target ground using the attitude of the machine body, the attitude of the attachment, a pressure of a cylinder, and dimensions of the attachment, a rolling compaction record creation unit that creates a rolling compaction record in which the position calculated by the position calculation unit is associated with the rolling compaction force calculated by the rolling compaction force calculation unit, and a storage control unit that causes a storage device to store the rolling compaction record created by the rolling compaction record creation unit.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: October 1, 2024
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Sho Fujiwara, Yusuke Kamimura, Yoichiro Yamazaki, Koji Yamashita, Daisuke Noda, Hideki Yoshihara
  • Publication number: 20240318326
    Abstract: A carbon dioxide electrolytic device of an embodiment includes: an electrolysis cell that includes a cathode, an anode, a cathode flow path, an anode flow path, and a separator; a carbon dioxide supply unit; an electrolytic solution supply unit; an electrolytic solution external flow path including a first pipe connecting the electrolytic solution supply unit to a first opening provided on one end side of the anode flow path, a second pipe connected to a second opening provided on the other end side of the anode flow path, and a third pipe connecting the electrolytic solution supply unit to the second opening of the anode flow path; and an electrolytic solution switching mechanism switching between a first flow in which the electrolytic solution flows from the first opening toward the second opening and a second flow in which the electrolytic solution flows from the second opening toward the first opening.
    Type: Application
    Filed: March 6, 2024
    Publication date: September 26, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yusuke KOFUJI, Naoya FUJIWARA, Satoshi MIKOSHIBA, Ryota KITAGAWA
  • Patent number: 12099026
    Abstract: A thermal conductivity estimation method includes: measuring temperature distribution of a measurement sample surface in a steady state by partially heating the measurement sample under predetermined heating conditions; calculating temperature distribution of a sample model surface by performing a heat-transfer simulation on the sample model of the same shape as the measurement sample for a plurality of combinations of provisional thermal conductivities and heating conditions; making a regression model, whose input is temperature distribution of the measurement sample surface and whose output is a thermal conductivity of the measurement sample, by a machine learning technique using training data in a form of a calculation result of the plurality of combinations and the temperature distribution obtained from the plurality of combinations; and estimating the thermal conductivity of the measurement sample by inputting a measurement result of the temperature distribution of the measurement sample surface into the
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: September 24, 2024
    Assignee: SUMCO CORPORATION
    Inventors: Ryusuke Yokoyama, Toshiyuki Fujiwara, Yusuke Higuchi, Toru Ujihara
  • Patent number: 12065376
    Abstract: The present invention relates to a chemically strengthened glass having a thickness t (mm), in which a first-order derivative CSx? of a stress value CSx (MPa) is ?4.7 or larger in a range of CSx?0 in a profile of the stress value CSx (MPa), in which the stress value CSx (MPa) is a function of depth×(?m) from a glass surface, and in which the stress value CSx (MPa) is measured by a scattered light photoelastic stress meter, and a manufacturing method thereof.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: August 20, 2024
    Assignee: AGC INC.
    Inventors: Kaname Sekiya, Yusuke Fujiwara
  • Publication number: 20240272602
    Abstract: A motor control method that can suppress a mover from vibrating when the mover is stopped is provided. A motor control method includes a command step of generating and outputting a second operation command for operating motor, based on the vibration cycle of mover and on the timing when the operation of motor based on the first operation command for operating motor that moves mover ends, and a drive step of generating and outputting a drive signal for operating motor based on the first operation command and the second operation command.
    Type: Application
    Filed: April 14, 2022
    Publication date: August 15, 2024
    Inventors: YUSUKE KUBOI, HIROSHI FUJIWARA, KENTA MURAKAMI
  • Publication number: 20240248492
    Abstract: A system is provided which can achieve reliability of a notification about a moving manner of a work machine for a worker regardless of the distance between the work machine and the worker. A sign image M is projected onto a peripheral region of the worker (for example, a ground surface which is present in the vicinity of the worker to the extent that the worker is capable of visually recognizing the sign image M) by an unmanned aircraft 60. The sign image M is an image which represents a moving manner of a work machine 40. Thus, regardless of the distance between the work machine 40 and the worker, reliability of a notification about the moving manner of the work machine 40 for the worker is achieved compared to a case where the sign image M is projected onto an irrelevant place to the position of the worker.
    Type: Application
    Filed: December 13, 2021
    Publication date: July 25, 2024
    Inventors: Yuki MORITA, Yusuke FUJIWARA, Kazuhiro UEDA, Yoichiro YAMAZAKI
  • Publication number: 20240246265
    Abstract: A compression molding die includes a first mold and a second mold. The first mold includes a bottom surface member and a side surface member. A space is providable in the first mold by a step of at least one of an outer peripheral surface of the bottom surface member and an inner peripheral surface of the side surface member. The first mold includes a gas inlet capable of introducing gas into the space, a gas outlet through which the gas introduced into the space is dischargeable, and a seal member below the space.
    Type: Application
    Filed: February 3, 2022
    Publication date: July 25, 2024
    Applicant: TOWA CORPORATION
    Inventors: Yusuke YOSHIDA, Kunihiko FUJIWARA, Kosuke HAYASHI
  • Patent number: 12047015
    Abstract: A power conversion device is provided between a power supply and a load, and converts power from the power supply and supplies the converted power to the load. The power conversion device includes a plurality of switching elements composed of semiconductor elements, and a control device which generates drive signals for controlling the plurality of switching elements. Voltages are respectively applied to the plurality of semiconductor elements, on the basis of the drive signals generated by the control device. The plurality of semiconductor elements have equivalent failure probabilities due to neutron beams. Thus, a failure of the power conversion device due to neutron beams is prevented, and size increase thereof is suppressed.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: July 23, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Shirouchi, Kenji Fujiwara, Takayoshi Nagai
  • Publication number: 20240244812
    Abstract: Motor control system (10) includes position detection device (14), controller (12), and motor control device (16). Motor control device (16) includes a shift amount calculation unit that calculates a predicted arrival position of moving unit (50) based on positional information indicating a position of moving unit (50) detected by using position detection device (14) and distance information indicating a future moving distance of moving unit (50) based on an operation command, calculates a shift amount between the predicted arrival position and a target position of moving unit (50), and outputs information indicating the shift amount between the predicted arrival position and the target position.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 18, 2024
    Inventors: YUSUKE KUBOI, HIROSHI FUJIWARA, KENTA MURAKAMI
  • Publication number: 20240166560
    Abstract: A glass substrate includes a thin portion having a first surface and a second surface opposed to the first surface, a thick portion having a first surface and a second surface opposed to the first surface and having a sheet thickness t3 that is larger than a sheet thickness t2 of the thin portion, a connection portion having a first connection surface and a second connection surface, the first connection surface connecting the first surface of the thin portion to the first surface of the thick portion, the second connection surface connecting the second surface of the thin portion to the second surface of the thick portion. The first connection surface has a curvature radius of more than or equal to 400 ?m.
    Type: Application
    Filed: January 30, 2024
    Publication date: May 23, 2024
    Applicant: AGC Inc.
    Inventors: Izuru KASHIMA, Yusuke FUJIWARA
  • Publication number: 20240118516
    Abstract: A control apparatus for a camera system that includes a lens apparatus including a first optical system and a second optical system and configured to move them relative to each other, and an image pickup apparatus including an image sensor and detachably attachable to the lens apparatus includes a processor configured to acquire a first evaluation value of the first optical system at a first focus detection position corresponding to the first optical system, determine a second focus detection position corresponding to the second optical system based on an first object image formed by the first optical system and a second object image formed by the second optical system, acquire a second evaluation value of the second optical system at the second focus detection position, and move the first optical system and the second optical system based on the first evaluation value and the second evaluation value.
    Type: Application
    Filed: September 26, 2023
    Publication date: April 11, 2024
    Inventors: Kiyoshi NITTO, Yosuke FUKAI, Taro MURAKAMI, Yusuke FUJIWARA