Patents by Inventor Toru Sekiguchi

Toru Sekiguchi 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: 20240399511
    Abstract: A spatter detection method for accurately determining whether or not spatter has been generated when resistance spot welding is performed is provided. A spatter detection method including: a welding step for welding a plurality of welding materials by sandwiching parts to be welded of the welding materials between a pair of electrodes and then pressurizing the parts to be welded while simultaneously energizing the pair of electrodes; a calculation step for calculating an amount of expansion of the parts to be welded based on a pressurizing force and a stroke between the pair of electrodes; and a determination step for determining that the spatter has been generated when a magnitude of an inclination of an expansion amount waveform falls below a determination threshold, in which in the determination step, determination thresholds different from each other are applied to respective sections obtained by dividing a target period of the determination.
    Type: Application
    Filed: May 15, 2024
    Publication date: December 5, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nao KAWABE, Tomohiko SEKIGUCHI, Toru HIOKI, Tomoko OGASAHARA, Shota EJIMA, Yosuke TAMADA, Takaya OBARA
  • Publication number: 20240391032
    Abstract: A method of resistance spot welding comprises: preparing a machine learning model having learned a relation between a feature of a test data and a quality of a welding state of a test welding, the test data recording a time series change in an expansion amount of a workpiece in the test welding; and determining the quality of the welding state of a main welding using a main welding data and the machine learning model, the main welding data recording a time series change in an expansion amount of the workpiece in the main welding. The feature includes a first feature and a second feature, the first feature being with respect to a gradient of a change in an expansion amount of the workpiece during an expansion period in which the workpiece expands by energization, the second feature being with respect to a gradient of a change in an expansion amount of the workpiece during a contraction period in which the workpiece contracts after the expansion period.
    Type: Application
    Filed: May 14, 2024
    Publication date: November 28, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shota EJIMA, Tomoko OGASAHARA, Tomohiko SEKIGUCHI, Toru HIOKI, Nao KAWABE, Takaya OBARA
  • Publication number: 20240322027
    Abstract: A conductor layer is positioned between a gate electrode and a drain electrode. The conductor layer contacts a nitride semiconductor layer. The conductor layer is electrically connected with the drain electrode. The drain electrode includes a first part contacting the nitride semiconductor layer, and a second part positioned further toward the conductor layer side than the first part in a first direction. An insulating film includes a portion positioned between the conductor layer and the drain electrode. The second part is located on the portion of the insulating film.
    Type: Application
    Filed: August 23, 2023
    Publication date: September 26, 2024
    Inventors: Hitoshi KOBAYASHI, Masaaki ONOMURA, Toru SUGIYAMA, Akira YOSHIOKA, Yasuhiro ISOBE, Tetsuya OHNO, Hideki SEKIGUCHI, Hung HUNG, Yorito KAKIUCHI
  • Publication number: 20240321974
    Abstract: A semiconductor device includes first and second semiconductor layers, first to third electrodes, an insulating region and a conductive layer. The second semiconductor layer is located on the first semiconductor layer. The first electrode is located on the second semiconductor layer. The second electrode is located on the second semiconductor layer and arranged with the first electrode in a second direction. The third electrode is positioned between the first electrode and the second electrode. The insulating region is located on the second semiconductor layer. The insulating region is between the first electrode and the second electrode and next to the first electrode. The insulating region includes first and second insulating portions. The second insulating portion is positioned above the first insulating portion. The conductive layer is located between the first insulating portion and the second insulating portion. The conductive layer is electrically connected with the first electrode.
    Type: Application
    Filed: August 28, 2023
    Publication date: September 26, 2024
    Inventors: Hideki SEKIGUCHI, Akira YOSHIOKA, Toru SUGIYAMA, Yasuhiro ISOBE
  • Publication number: 20240321977
    Abstract: A semiconductor device includes a first semiconductor layer, a second semiconductor layer, a first electrode, a second electrode, a conductive part, an insulating part, and a third electrode. The second semiconductor layer is located on the first semiconductor layer. The first electrode is located on the second semiconductor layer. The first electrode includes an electrode part and an electrode extension part. The electrode part contacts the second semiconductor layer. The electrode extension part extends from an upper end portion of the electrode part. The conductive part is positioned between the first electrode and the second electrode. The conductive part contacts an upper surface of the second semiconductor layer and contacting the first electrode. The insulating part is located on the conductive part and is positioned between the conductive part and the electrode extension part.
    Type: Application
    Filed: August 25, 2023
    Publication date: September 26, 2024
    Inventors: Akira YOSHIOKA, Hitoshi KOBAYASHI, Hideki SEKIGUCHI, Hung HUNG, Yasuhiro ISOBE, Toru SUGIYAMA
  • Publication number: 20240313246
    Abstract: An assembling method for a fuel cell stack including stacking alternately a unitized electrode assembly having an electrolyte membrane and an electrode, and a separator in a predetermined region to form a cell stacked body. Each of the unitized electrode assembly and the separator is a stack element, and the stacking includes transporting the stack element above the predetermined region while sucking the stack element by a suction portion, descending the stack element while positioning the stack element along a guide member extending upward around the predetermined region, and releasing a suction by the suction portion when a lower surface of the stack element abuts on an upper surface of another stack element having been stacked in the predetermined region.
    Type: Application
    Filed: February 26, 2024
    Publication date: September 19, 2024
    Inventors: Hiroshi Sekiguchi, Kunihiko Yanagisawa, Toru Ikeda
  • Patent number: 12046668
    Abstract: A semiconductor device includes: a drain electrode including a plurality of drain finger parts; a source electrode including a plurality of source finger parts and a Kelvin source part electrically connected with the source finger parts; a sense electrode positioned between a drain finger part and the Kelvin source part, which are next to each other in a particular direction; and a gate electrode positioned between a drain finger part and a source finger part, which are next to each other in the particular direction, and between a drain finger part and the sense electrode, which are next to each other in the particular direction. The sense electrode and the Kelvin source part are electrically connected via a sense resistance due to a spacing between the sense electrode and the Kelvin source part in the particular direction.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: July 23, 2024
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Toru Sugiyama, Akira Yoshioka, Hitoshi Kobayashi, Masaaki Onomura, Yasuhiro Isobe, Hung Hung, Hideki Sekiguchi, Tetsuya Ohno
  • Patent number: 11932303
    Abstract: A steering device includes a pipe, a housing, a telescopic mechanism, and a load absorbing mechanism. The load absorbing mechanism includes an extending portion provided in the telescopic mechanism and extending in a front-rear direction, a first sliding portion provided on a first side in the left-right direction with respect to the extending portion, and a second sliding portion provided on a second side in the left-right direction with respect to the extending portion. The sliding portion includes a front pressing portion that comes into contact with a side surface of the extending portion, and a rear pressing portion provided behind the front pressing portion, and in which a distance in the left-right direction between the rear pressing portion and the other sliding portion facing the one sliding portion across the extending portion is shorter than a distance in the left-right direction between the front pressing portion and the other sliding portion.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: March 19, 2024
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Taisuke Homma, Toru Sekiguchi, Hiromitsu Baba
  • Patent number: 11891115
    Abstract: A steering device includes a pipe, a housing, a telescopic mechanism, and a load absorbing mechanism. The load absorbing mechanism includes an extending portion coupled to the telescopic mechanism and extending in a front-rear direction, a first sliding portion provided on a first side in a left-right direction with respect to the extending portion, and a second sliding portion provided on a second side in the left-right direction with respect to the extending portion.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: February 6, 2024
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Taisuke Homma, Toru Sekiguchi, Hiromitsu Baba
  • Publication number: 20230136638
    Abstract: A steering device includes a pipe, a housing, a telescopic mechanism, and a load absorbing mechanism. The load absorbing mechanism includes an extending portion coupled to the telescopic mechanism and extending in a front-rear direction, a first sliding portion provided on a first side in a left-right direction with respect to the extending portion, and a second sliding portion provided on a second side in the left-right direction with respect to the extending portion.
    Type: Application
    Filed: March 19, 2021
    Publication date: May 4, 2023
    Inventors: Taisuke Homma, Toru Sekiguchi, Hiromitsu Baba
  • Publication number: 20230081714
    Abstract: A steering device includes a pipe, a housing, a telescopic mechanism, and a load absorbing mechanism. The load absorbing mechanism includes an extending portion provided in the telescopic mechanism and extending in a front-rear direction, a first sliding portion provided on a first side in the left-right direction with respect to the extending portion, and a second sliding portion provided on a second side in the left-right direction with respect to the extending portion. The sliding portion includes a front pressing portion that comes into contact with a side surface of the extending portion, and a rear pressing portion provided behind the front pressing portion, and in which a distance in the left-right direction between the rear pressing portion and the other sliding portion facing the one sliding portion across the extending portion is shorter than a distance in the left-right direction between the front pressing portion and the other sliding portion.
    Type: Application
    Filed: March 19, 2021
    Publication date: March 16, 2023
    Inventors: Taisuke Homma, Toru Sekiguchi, Hiromitsu Baba
  • Patent number: 11326540
    Abstract: An abnormality determination device of an internal combustion engine in which a breather line connects an intake-air path positioned upstream from a forced-induction system and a crankcase includes an intake-air flow rate sensor that detects an intake air flow rate in the intake-air path, a pressure sensor that detects a pressure of the breather line, and an abnormality determination unit that determines abnormality of the breather line. The abnormality determination unit estimates an intake air resistance of the intake-air path from the pressure when the engine is under low load conditions under which the intake air flow rate is less than a predetermined value and the pressure when the engine is under high load conditions under which the intake air flow rate is the predetermined value or greater and determines abnormality of the breather line when the intake air resistance is less than a threshold.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 10, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Masahiro Fujii
  • Patent number: 11293367
    Abstract: In a failure determination device for an internal combustion engine equipped with a supercharger, the failure determination device determining a failure of a breather pipe that is connected between a crankcase and an intake passage at a position on an upstream side of the supercharger, the breather pipe is constituted by a double pipe including an inner pipe and an outer pipe, a communication passage communicates an enclosed space between the inner pipe and the outer pipe of the breather pipe with a portion of the intake passage on a downstream side of the supercharger. When the detected breather outer-pipe gauge pressure is higher than or equal to a determination threshold that is set in accordance with detected intake gauge pressure, the failure determination device determines that the breather pipe is failed.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 5, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Taku Hirota, Hiroki Ishikawa
  • Patent number: 11174765
    Abstract: An abnormality assessment device includes an on-off valve that shuts an intake path on an upstream side of a connection portion of a breather line with respect to the intake path and an abnormality assessment element that assesses abnormality of the breather line. The abnormality assessment element assesses abnormality of the breather line based on a difference between an intake flow rate that is detected by an intake flow rate sensor and a target intake flow rate in a case where the on-off valve is closed.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: November 16, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Taku Hirota
  • Publication number: 20210293196
    Abstract: In a failure determination device for an internal combustion engine equipped with a supercharger, the failure determination device determining a failure of a breather pipe that is connected between a crankcase and an intake passage at a position on an upstream side of the supercharger, the breather pipe is constituted by a double pipe including an inner pipe and an outer pipe, a communication passage communicates an enclosed space between the inner pipe and the outer pipe of the breather pipe with a portion of the intake passage on a downstream side of the supercharger. When the detected breather outer-pipe gauge pressure is higher than or equal to a determination threshold that is set in accordance with detected intake gauge pressure, the failure determination device determines that the breather pipe is failed.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 23, 2021
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Taku Hirota, Hiroki Ishikawa
  • Patent number: 11078863
    Abstract: An abnormality determination apparatus for an internal combustion engine in which an intake passage upstream of a supercharger and a crankcase are connected by a breather line includes: an intake flow rate detection unit that detects an intake flow rate in the intake passage; and an abnormality determination unit that determines abnormality of the breather line. The abnormality determination unit accumulates a value calculated from a rotation second-order component of a fluctuation waveform of the intake flow rate over a predetermined period of time and determines the abnormality of the breather line when the accumulated value is less than a predetermined threshold.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: August 3, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Toshifumi Yoshida
  • Patent number: 11053878
    Abstract: An abnormality determination apparatus for an internal combustion engine in which an intake passage upstream of a supercharger and a crankcase are connected by a breather line includes: an intake flow rate detection unit that detects an intake flow rate in the intake passage; and an abnormality determination unit that determines abnormality of the breather line. The abnormality determination unit calculates a rotation second-order component of a fluctuation waveform of the intake flow rate, accumulates a first number of times for which the rotation second-order component exceeds an upper threshold and a second number of times for which the rotation second-order component falls below a lower threshold, and determines the abnormality of the breather line by comparing an accumulated value of the first number of times and the second number of times with the number of revolutions of a crank.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: July 6, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Toshifumi Yoshida
  • Patent number: 11022059
    Abstract: An abnormality determination apparatus for an internal combustion engine in which an intake passage upstream of a supercharger and a crankcase are connected by a breather line includes: an intake flow rate detection unit that detects an intake flow rate in the intake passage; and an abnormality determination unit that determines abnormality of the breather line. The abnormality determination unit accumulates a time for which a rotation second-order component of a fluctuation waveform of the intake flow rate is equal to or more than a threshold over a predetermined period of time and determines the abnormality of the breather line when the accumulated value is less than a predetermined accumulation threshold.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: June 1, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toru Sekiguchi, Takashi Konomoto, Toshifumi Yoshida
  • Patent number: 10953910
    Abstract: According to an aspect, there is provided a steering device including a pipe, a housing, a telescopic mechanism, and a load absorbing mechanism. The load absorbing mechanism includes a first connection member connecting a hanger bracket and an EA plate to each other and a second connection member connecting a guide plate and the EA plate to each other. In a case where a forward acting load applied to the pipe has a predetermined value or greater, the load absorbing mechanism is configured so that the first connection member is slidable on the EA plate, and is configured so that the second connection member is slidable on the EA plate.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 23, 2021
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Toru Sekiguchi, Taisuke Honma
  • Patent number: 10953911
    Abstract: According to an aspect, there is provided a steering device including a pipe, a housing, a telescopic mechanism, and a load absorbing mechanism. The load absorbing mechanism includes an EA plate disposed in the pipe, a guide plate disposed in a telescopic movable portion, and overlapped with the EA plate, and a connection member connecting the EA plate and the guide plate to each other. Dimensions of the load absorbing mechanism are set so that a load applied between the connection member and the EA plate is lower than a load applied between the connection member and the guide plate.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 23, 2021
    Assignee: YAMADA MANUFACTURING CO., LTD.
    Inventors: Toru Sekiguchi, Taisuke Honma