Patents by Inventor Koji Yamashita

Koji Yamashita 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: 12044658
    Abstract: A moving inspection device inspecting an inspection target while realizing the simplification of the configuration and significant size reduction/weight reduction of the device, a moving inspection method, and a method for manufacturing a steel material. The device includes a moving inspection device body configured to inspect an inspection target for defects while moving over its surface. The moving inspection device body includes: a carriage that moves by at least two wheels that rotate forward and backward over the surface; and at least one inspection sensor on the front end side or the rear end side of the carriage. An inspection region of the inspection target is divided into two divided regions across a straight line, and the carriage is configured to move when the inspection sensor is directed to side edges sides of the divided regions facing the straight line in each of the two divided regions.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: July 23, 2024
    Assignee: JFE STEEL CORPORATION
    Inventors: Masaki Kobayashi, Koji Yamashita, Kouyou Miyawaki
  • Patent number: 12042815
    Abstract: A substrate processing apparatus includes a processing tank, a holder, an organic solvent supply, a drainage port, a gas supply, and an exhaust port. The processing tank stores an aqueous layer. The holder holds a substrate. The organic solvent supply supplies an organic solvent onto the aqueous layer to form a liquid layer of the organic solvent. The drainage port discharges the aqueous layer from a bottom wall of the processing tank and causes the liquid layer of the organic solvent to descend from above the substrate to below the substrate. The gas supply supplies a gas of a water repellent agent to the liquid layer from above the processing tank while the liquid layer descends. The exhaust port is exposed on a side wall of the processing tank by the descending of the liquid layer and discharges the gas of the water repellent gas.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: July 23, 2024
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kotaro Tsurusaki, Koji Yamashita, Yusuke Yamamoto, Koji Tanaka, Kouzou Kanagawa
  • Publication number: 20240241102
    Abstract: Provided are a soil quality information acquisition system that enables acquisition of soil quality information at an appropriate time on a worksite, and a working machine including the system. The soil quality information acquisition system includes a body position detection part, an acquisition time determination part, a soil quality information acquisition part, and a storage part. The body position detection part acquires position information about a hydraulic excavator on the worksite. The acquisition time determination part determines an acquisition time on the basis of soil quality relevant information being information related a change in a quality on the worksite. The soil quality information acquisition part receives an acquisition signal output from the acquisition time determination part, and acquires the soil quality information in response to the acquisition signal. The storage part stores the position information and the soil quality information in association with each other.
    Type: Application
    Filed: February 24, 2022
    Publication date: July 18, 2024
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Sho OKIMOTO, Yasuhiko SHIMAZU, Koji YAMASHITA
  • Publication number: 20240175112
    Abstract: A steel wire for machine structural parts, including respective predetermined contents of C, Si, Mn, P, S, Al, Cr, N, and iron, wherein when a total content of Cr and Mn (% by mass) in cementite in the metallurgical microstructure is expressed as {Cr+Mn}, a total content of Cr and Mn (% by mass) in steel is expressed as [Cr+Mn], and a C content (% by mass) of the steel is expressed as [C], a concentration ratio {Cr+Mn}/[Cr+Mn] is (0.5[C] +0.040) or more, and an average circular-equivalent diameter of all the cementite is (1.668-2.13[C]) ?m or more and (1.863-2.13[C]) ?m or less.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 30, 2024
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yosuke MATSUMOTO, Kenshi IKEDA, Takuya KOCHI, Masayuki SAKATA, Tatsunori UCHIDA, Koji YAMASHITA, Yuta INOUE
  • Publication number: 20240167116
    Abstract: A steel wire for machine structural parts, may include Fe, inevitable impurities, and, by mass: 0.05 to 0.60% C; 0.005 to 0.50% Si; 0.30 to 1.20% Mn; more than 0 to 0.050% P; more than 0 to 0.050% S; 0.001 to 0.10% Al; more than 0 to 1.5% Cr; and more than 0 to 0.02% N. An area of cementite present at ferrite grain boundaries in an area of all cementite of the steel wire may be 32% or more. When a C content (% by mass) of a steel is expressed as [C], an average circular-equivalent diameter of all the cementite is (1.668-2.13 [C]) ?m or more and (1.863-2.13 [C]) ?m or less.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 23, 2024
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yosuke MATSUMOTO, Kenshi IKEDA, Takuya KOCHI, Masayuki SAKATA, Tatsunori UCHIDA, Koji YAMASHITA, Yuta INOUE
  • Publication number: 20240150861
    Abstract: A cold-workable mechanical structural steel may include: C: 0.30 to 0.45 mass %; Si: 0.10 to 0.40 mass %; Mn: 0.50 to 1.00 mass %; P: 0.050 mass % or less; S: 0.050 mass % or less; Cr: 0.80 to 1.30 mass %; Al: 0.01 to 0.10 mass %; and a balance of iron and inevitable impurity, the steel having an area percentage of pro-eutectoid ferrite of 10% or larger and 70% or smaller; containing at least one selected from the group consisting of bainite, martensite, and pearlite; and having a dislocation density of 3.5×1014 m?2 or larger.
    Type: Application
    Filed: February 2, 2022
    Publication date: May 9, 2024
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Koji YAMASHITA, Yuta INOUE, Masayuki SAKATA, Takuya KOCHI, Yosuke MATSUMOTO, Tatsunori UCHIDA
  • Patent number: 11959256
    Abstract: An operative target position of a leading end device supposed by an operator of a working machine is estimated with high accuracy. The controller calculates a prospective locus region on the basis of respective detection results of a posture detecting part and a manipulation detecting part. The prospective locus region is a region based on a prospective locus along which a leading end device is prospected to shift. The controller calculates a gaze point region on the basis of a detection result of a sight detecting part. The gaze point region is a region based on a gaze point of an operator. The controller sets a target position in a region where the prospective locus region and the gaze point region overlap each other.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: April 16, 2024
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Koji Yamashita
  • Patent number: 11952747
    Abstract: A remote operation device includes: a vibration detector to detect a plurality of vibration components in a plurality of directions different from each other, the vibration components being included in a vibration caused on an attachment; a transmission device; and a transmission control section that controls an operation of the transmission device. A vibration determination condition is set in advance, the vibration determination condition including a condition that an amplitude of a maximum vibration component largest in amplitude among the plurality of vibration components detected by the vibration detector is equal to or larger than a preset amplitude threshold. The transmission control section controls the operation of the transmission device to allow the vibration information to be transmitted to an operator only when the vibration determination condition is met.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: April 9, 2024
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Daisuke Noda, Koji Yamashita, Yoichiro Yamazaki
  • Patent number: 11945920
    Abstract: Thermosensitive fine particles of the present invention include a side chain crystal polymer which is crystallized at a temperature lower than a melting point and which exhibits fluidity at a temperature equal to or more than the melting point. The side chain crystal polymer may include, as a monomer component, a (meth)acrylate having a straight-chain alkyl group having 14 or more carbon atoms. A mean particle diameter of the fine particles may be 0.1 to 50 ?m. The thermosensitive fine particles may include no organic solvents.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: April 2, 2024
    Assignee: NITTA CORPORATION
    Inventors: Kosuke Marutani, Satoshi Yamaguchi, Takashi Megumi, Hikaru Ito, Takumi Kato, Koji Yamashita
  • Patent number: 11915947
    Abstract: Substrates can be suppressed from being separated from supporting grooves. A substrate processing apparatus includes a substrate holding unit and a processing tub. The substrate holding unit is configured to hold multiple substrates. The processing tub is configured to store a processing liquid therein. The substrate holding unit comprises a supporting body, an elevating device and a restriction unit. The supporting body has multiple supporting grooves and is configured to support the multiple substrates with a vertically standing posture from below in the multiple supporting grooves, respectively. The elevating device is configured to move the supporting body between a standby position above the processing tub and a processing position within the processing tub. The restriction unit is configured to be moved up and down along with the supporting body by the elevating device and configured to restrict an upward movement of the substrates with respect to the supporting body.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: February 27, 2024
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Takumi Honda, Koji Yamashita, Shinji Tahara, Hironobu Hyakutake
  • Publication number: 20240026658
    Abstract: A target path changing system for an attachment, which is capable of improving the working efficiency of an operation to change a target path of a specific part of the attachment, is provided. An object point selection unit is configured to allow an operator to select one of target points as a change object point. A range setting unit is configured to set a movable range in which the change object point is movable. An object point movement unit allows the operator to move the change object point within the movable range. A target path resetting unit is configured to reset a target path between a change start point and a change end point so that the target path passes through an after-movement change object point.
    Type: Application
    Filed: July 7, 2021
    Publication date: January 25, 2024
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Masaki AKIYAMA, Daisuke NODA, Koji YAMASHITA
  • Publication number: 20240026643
    Abstract: A distance detection unit detects a first distance from a specific reference position associated with a work machine to a portion of a platform of a carrier on a carrier rear side, and a second distance from the reference position to a portion of the platform on a carrier front side. A controller causes a stop instruction output unit to output a stop instruction at least either when the first distance falls from a value greater than a first threshold value to a value equal to or smaller than the first threshold value or when the second distance falls from a value greater than a second threshold value to a value equal to or smaller than the second threshold value.
    Type: Application
    Filed: March 17, 2023
    Publication date: January 25, 2024
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Daisuke NODA, Koji YAMASHITA, Takayuki DOI
  • Publication number: 20230407594
    Abstract: A contact of an attachment with an obstacle is suppressed, and concurrently, a wasteful motion of the attachment is suppressed. When determining that an obstacle specific portion exists between a start point and an end point, a controller sets an avoidance path as a target path. The avoidance path is a path along which an attachment specific portion moves from the start point to the end point while the attachment is led to an avoidance operation of avoiding the obstacle. When determining that the obstacle specific portion does not exist between the start point and the end point, the controller sets a non-avoidance path as the target path. The non-avoidance path is a path along which the attachment specific portion moves from the start point to the end point while the attachment is not led to the avoidance operation.
    Type: Application
    Filed: August 5, 2021
    Publication date: December 21, 2023
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Masaki AKIYAMA, Takayuki DOI, Koji YAMASHITA
  • Publication number: 20230399812
    Abstract: An automatic operating device includes: a position estimation part that includes an interaction model, and calculates, as estimative position data, actual position data corresponding to force data which is input; a force computation part that includes a force computation model, calculates force data corresponding to a deviation which is input, and inputs the force data to the position estimation part; a database that stores a base parameter that is a parameter having been calculated in past; and a parameter setting part that calculates, on the basis of the base parameter, a target parameter corresponding to each of a norm y(t) of an actual position and a norm u(t) of a force, and sets the target parameter to a parameter of each of the interaction model and the force computation model.
    Type: Application
    Filed: October 21, 2021
    Publication date: December 14, 2023
    Applicants: HIROSHIMA UNIVERSITY, KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Tomofumi OKADA, Toru YAMAMOTO, Kazushige KOIWAI, Koji YAMASHITA
  • Patent number: 11828607
    Abstract: A memory stores, in advance, target line information indicating an arrangement target of an object to be conveyed and related to a target line denoted by at least one of a curve or a polyline. A controller is configured to: calculate, based on the target line information, target information which is at least one of information about a target coordinate of the object and information about a target direction of the object; calculate, based on the at least one of the coordinate of the object and the direction of the object detected by the detector, detection information which is comparable with the target information; calculate a deviation of the detection information from the target information; and cause a display to display a moving direction of the object which allows the deviation to decrease.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: November 28, 2023
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Nobuhiro Fukuo, Yoichiro Yamazaki, Koji Yamashita, Yusuke Kamimura, Shingo Sekiguchi, Takayuki Iino, Hiroshi Kobayashi
  • Publication number: 20230374749
    Abstract: A system for setting a target trajectory of an attachment allows for an efficient operation of the attachment. The system includes a target trajectory setting unit which sets a target trajectory of a specific part of an attachment between a target start point at which an operation for moving the attachment holding a load extracted from a work object to above an object to be loaded is started and a target end point at which this operation is finished, an imaging device which images the surroundings of a work machine including the object to be loaded as ambient information, an end point moving unit which moves the target end point based on the ambient information, and a target trajectory resetting unit which resets the target trajectory between the target start point and a target end point after movement.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 23, 2023
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Daisuke NODA, Koji YAMASHITA, Masaki AKIYAMA
  • Publication number: 20230358015
    Abstract: An excavation position determination system achieves appropriate determination of an excavation start position in accordance with a shape or contour of an excavation target. The excavation position determination system includes: a photographing device that photographs an excavation target having a mountain shape and a bucket included in a working machine; a start position determinator that determines an excavation start position of the bucket to the excavation target. The start position determinator determines, on the basis of detected data from the photographing device, a position of the bucket where the bucket is not wholly hidden by the excavation target but a part of the excavation target and a part of the bucket overlap each other when the bucket is seen from a machine body of the working machine as the excavation start position.
    Type: Application
    Filed: September 13, 2021
    Publication date: November 9, 2023
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Ryunosuke MIYAZAKI, Daisuke NODA, Koji YAMASHITA
  • Patent number: 11809939
    Abstract: An RFID tag 300 with a boost antenna includes a boost antenna 100 and an RFID tag 200, wherein the boost antenna 100 includes: a radiation unit 10 which is conductive; a ground unit 30 which faces the radiation unit 10 and is conductive; and a short circuit unit 20 which connects one end of the radiation unit 10 and one end of the ground unit 30, and electrically connecting the radiation unit 10 and the ground unit 30 with each other, and wherein the RFID tag 200 is arranged at a position close to the short circuit unit 20 on the ground unit 30, wherein each of the boost antenna 100 and the RFID tag 200 has resonance characteristics.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: November 7, 2023
    Assignee: KYOCERA CORPORATION
    Inventors: Shiro Sugimura, Shuichi Yamamoto, Takuya Hayashi, Koji Yamashita, Takaaki Sakai
  • Publication number: 20230330802
    Abstract: A flaw grinding system, a flaw grinding method, and a steel-product manufacturing method enable automation of the task of grinding a flaw on the surface of a workpiece having a three-dimensional shape, while also reducing the occurrence of faulty grinding such as over-grinding or under-grinding. The flaw grinding system includes a grinding apparatus, a shape measurement apparatus, a flaw detection apparatus, and a grinding-tool control apparatus. The grinding apparatus includes a grinding tool that grinds a flaw on a surface of a workpiece. The shape measurement apparatus measures a three-dimensional shape and an attitude of the workpiece. The flaw detection apparatus detects a location of the flaw on the workpiece. The grinding-tool control apparatus generates a trajectory of the grinding tool to grind the flaw. The grinding-tool control apparatus controls the grinding apparatus in a manner that causes the grinding tool to move along the trajectory.
    Type: Application
    Filed: July 28, 2021
    Publication date: October 19, 2023
    Applicant: JFE STEEL CORPORATION
    Inventors: Taku WATANABE, Kyohei ISHIDA, Koji YAMASHITA
  • Publication number: 20230308070
    Abstract: A signal generation unit 2, a DA converter 3, variable attenuators 40, 42, 44, and 46, a measurement unit 6 that detects a level of the signal attenuated by the variable attenuators 40, 42, 44, and 46 and passed through one or more semiconductor components, a switch 48 that switches between an Internal path through which the signal attenuated by the variable attenuator 40, 42, 44, and 46 is transmitted to the measurement unit 6 and an External path through which the signal attenuated by the variable attenuator 40, 42, 44, and 46 is output from an output terminal 10, and a control unit 7 that obtains a correction value of an attenuation amount of the variable attenuators 40, 42, and 44 with the Internal path and obtains a correction value of an attenuation amount of the variable attenuator 46 with the External path.
    Type: Application
    Filed: December 21, 2022
    Publication date: September 28, 2023
    Inventors: Hirofumi ONO, Koji YAMASHITA, Shinichi ITO