Patents by Inventor Satoru Yamaguchi

Satoru 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: 12136853
    Abstract: An electric-rotating-machine rotor has a rotor core in which ring-shaped plate materials that are each magnetic materials are stacked in an axial direction and a shaft-press-fitted into an inner circumferential surface of the rotor core; the inner circumferential surface has a first press-fitting portion that is an axial-direction section into which the shaft is inserted and a second press-fitting portion that is an axial-direction section adjacent to the first press-fitting portion and into which the shaft is inserted with an interference larger than that of the first press-fitting portion, and the shaft is press-fitted into the inner circumferential surface of the rotor core from the first press-fitting portion side. As a result, the electric-rotating-machine rotor in which no gap is caused between the stacked plate materials can be realized at low cost. Moreover, it is made possible to produce the electric-rotating-machine rotor through simple processes and at low cost.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: November 5, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kohei Yamaguchi, Masafumi Okazaki, Satoru Akutsu
  • Patent number: 11791130
    Abstract: The objective of the present invention is to reduce differences between individual electron beam observation devices accurately by means of image correction.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 17, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Koichi Hamada, Megumi Kimura, Momoyo Enyama, Ryou Yumiba, Makoto Sakakibara, Kei Sakai, Satoru Yamaguchi, Katsumi Setoguchi, Masumi Shirai, Yasunori Takasugi
  • Publication number: 20230317406
    Abstract: A charged particle beam system that improves throughput by applying an approximate expression created using a wafer to be actually measured is provided.
    Type: Application
    Filed: March 29, 2023
    Publication date: October 5, 2023
    Inventors: Yuto KAWASHIMA, Satoru YAMAGUCHI, Yasunori TAKASUGI
  • Publication number: 20230314128
    Abstract: A processing system and a charged particle beam apparatus for the purpose of determining the degree of growth or the presence or absence of a defect in an epitaxial layer grown in a groove or a hole such as between inner spacers from an image of the groove or the hole are proposed. In a processing system including a computer system, the computer system calculates a distance and a brightness value related to a layer between a plurality of structures from a signal profile in accordance with one direction on a two-dimensional plane related to the layer, which is obtained by irradiating the layer with an electron beam, and determines or outputs a state of the layer based on the distance and the brightness value.
    Type: Application
    Filed: March 29, 2023
    Publication date: October 5, 2023
    Inventors: Masaya GOTO, Kei SAKAI, Satoru YAMAGUCHI, Junichi KAKUTA
  • Patent number: 11670481
    Abstract: To shorten a time required for evaluation of a recipe while suppressing an increase in a data amount. A charged particle beam device includes a microscope that scans a charged particle beam on a sample, detects secondary particles emitted from the sample, and outputs a detection signal and a computer system that generates a frame image based on the detection signal and processes an image based on the frame images. The computer system calculates a moment image between a plurality of the frame images, and calculates a feature amount data of the frame image based on a moment.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: June 6, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Motonobu Hommi, Satoru Yamaguchi, Kei Sakai, Hiroshi Nishihama
  • Patent number: 11626266
    Abstract: Provided is a charged particle beam device capable of focusing with high accuracy even when a charged particle beam has a large off-axis amount. The charged particle beam device generates an observation image of a sample by irradiating the sample with a charged particle beam, and includes: a deflection unit that inclines the charged particle beam; a focusing lens that focuses the charged particle beam; an adjustment unit that adjusts a lens strength of the focusing lens based on an evaluation value calculated from the observation image; a storage unit that stores a relationship between a visual field movement amount and the lens strength; and a filter setting unit that calculates the visual field movement amount based on an inclination angle of the charged particle beam and the relationship, and sets an image filter to be superimposed on the observation image based on the calculated visual field movement amount.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: April 11, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Keiichiro Hitomi, Kenji Tanimoto, Yusuke Abe, Takuma Yamamoto, Kei Sakai, Satoru Yamaguchi, Yasunori Goto, Shuuichirou Takahashi
  • Publication number: 20230073673
    Abstract: A multi-car elevator control device that can shorten an open and close time of a door is provided. The multi-car elevator control device includes, in an elevator system including a plurality of cars that overlap each other on a horizontal projection plane, an open and close instruction judging part that changes, based on a motor speed or current in a moving time of a car door of a specified car, a control parameter of a car door of another car. According to the configuration, the multi-car elevator control device changes, based on the motor speed or current in the moving time of the car door of the specified car, the control parameter of the car door of the other car, in the elevator system including a plurality of cars that overlap each other on the horizontal projection plane. Therefore, the open and close time of the door can be shortened.
    Type: Application
    Filed: March 31, 2020
    Publication date: March 9, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Satoru YAMAGUCHI, Masayuki SUGAHARA
  • Patent number: 11560828
    Abstract: An engine includes a combustion chamber, a cylinder head, an intake valve, a partition wall plate, and a tumble valve. The cylinder head includes an intake port that communicates with the combustion chamber. The intake valve includes a head configured to open and close an open end of the intake port. The partition wall plate partitions the intake port into first and second passages. The tumble valve is configured to open and close either one of the first passage and the second passage. A cross sectional shape of the partition wall plate is defined on a basis of a shape of a gap that is surrounded by a contour of the head and a contour of the open end, as viewed in a reference direction. The reference direction is a direction from a reference point in the intake port to a gap between the open end and the head.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: January 24, 2023
    Assignee: SUBARU CORPORATION
    Inventors: Kenta Kimoto, Masaaki Kato, Satoru Yamaguchi, Takumi Murata, Takeshi Tsuda, Akihisa Yoshino, Daisuke Miyashita
  • Publication number: 20220277434
    Abstract: The present invention proposes a technique for enabling the execution of measurement processing without referring to a design drawing for which it is difficult to adjust or obtain parameters for image processing that requires knowhow. This measurement system according to the present disclosure refers to a learning model generated on the basis of teaching data, which is generated from a sample image of a semiconductor, and the sample image, generates a region-segmented image from an input image (measurement subject) of a semiconductor having a predetermined structure, and uses the region-segmented image to perform image measurement. Here, the teaching data is an image in which labels, which include a structure of the semiconductor in the sample image, are assigned to each pixel of the image, and the learning model includes parameters for deducing teaching data from the sample image (see indicator 1).
    Type: Application
    Filed: August 30, 2019
    Publication date: September 1, 2022
    Inventors: Ryou YUMIBA, Kei SAKAI, Satoru YAMAGUCHI
  • Publication number: 20220165537
    Abstract: To shorten a time required for evaluation of a recipe while suppressing an increase in a data amount. A charged particle beam device includes a microscope that scans a charged particle beam on a sample, detects secondary particles emitted from the sample, and outputs a detection signal and a computer system that generates a frame image based on the detection signal and processes an image based on the frame images. The computer system calculates a moment image between a plurality of the frame images, and calculates a feature amount data of the frame image based on a moment.
    Type: Application
    Filed: September 29, 2021
    Publication date: May 26, 2022
    Inventors: Motonobu HOMMI, Satoru YAMAGUCHI, Kei SAKAI, Hiroshi NISHIHAMA
  • Publication number: 20220130638
    Abstract: Provided is a charged particle beam device capable of focusing with high accuracy even when a charged particle beam has a large off-axis amount. The charged particle beam device generates an observation image of a sample by irradiating the sample with a charged particle beam, and includes: a deflection unit that inclines the charged particle beam; a focusing lens that focuses the charged particle beam; an adjustment unit that adjusts a lens strength of the focusing lens based on an evaluation value calculated from the observation image; a storage unit that stores a relationship between a visual field movement amount and the lens strength; and a filter setting unit that calculates the visual field movement amount based on an inclination angle of the charged particle beam and the relationship, and sets an image filter to be superimposed on the observation image based on the calculated visual field movement amount.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 28, 2022
    Applicant: Hitachi High-Tech Corporation
    Inventors: Keiichiro HITOMI, Kenji TANIMOTO, Yusuke ABE, Takuma YAMAMOTO, Kei SAKAI, Satoru YAMAGUCHI, Yasunori GOTO, Shuuichirou TAKAHASHI
  • Publication number: 20220051868
    Abstract: The objective of the present invention is to reduce differences between individual electron beam observation devices accurately by means of image correction.
    Type: Application
    Filed: January 23, 2019
    Publication date: February 17, 2022
    Inventors: Koichi HAMADA, Megumi KIMURA, Momoyo ENYAMA, Ryou YUMIBA, Makoto SAKAKIBARA, Kei SAKAI, Satoru YAMAGUCHI, Katsumi SETOGUCHI, Masumi SHIRAI, Yasunori TAKASUGI
  • Publication number: 20210381423
    Abstract: An engine includes a combustion chamber, a cylinder head, an intake valve, a partition wall plate, and a tumble valve. The cylinder head includes an intake port that communicates with the combustion chamber. The intake valve includes a head configured to open and close an open end of the intake port. The partition wall plate partitions the intake port into first and second passages. The tumble valve is configured to open and close either one of the first passage and the second passage. A cross sectional shape of the partition wall plate is defined on a basis of a shape of a gap that is surrounded by a contour of the head and a contour of the open end, as viewed in a reference direction. The reference direction is a direction from a reference point in the intake port to a gap between the open end and the head.
    Type: Application
    Filed: May 10, 2021
    Publication date: December 9, 2021
    Inventors: Kenta KIMOTO, Masaaki Kato, Satoru Yamaguchi, Takumi Murata, Takeshi Tsuda, Akihisa Yoshino, Daisuke Miyashita
  • Patent number: 11177112
    Abstract: The present invention proposes a pattern measurement tool characterized by being provided with: a charged-particle beam sub-system having a tilt deflector; and a computer sub-system which is connected to the charged-particle beam sub-system and which is for executing measurement of a pattern on the basis of a signal obtained by said charged-particle beam sub-system, wherein the charged-particle beam sub-system acquires at least two signal profiles by scanning beams having at least two incidence angles, the computer sub-system measures the dimension between one end and the other end of the pattern on the basis of the at least two signal profiles, calculates the difference between the two measurements, and calculates the height of the pattern by inputting the difference value determined by said calculation into a relational formula indicating the relation between the height of the pattern and said difference value.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: November 16, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Satoru Yamaguchi, Kei Sakai, Makoto Suzuki, Ryota Watanabe
  • Patent number: 11170969
    Abstract: Provided is an electron beam observation device that includes: an electron source; an objective lens concentrating an electron beam emitted from the electron source; and a control unit configured to perform control such that a plurality of images is generated by capturing images of a reference sample having a specific pattern, and a frequency characteristic is calculated for each of the plurality of images, in which an image is generated based on a secondary signal generated from a sample due to irradiation of the sample with the electron beam, and the control unit holds the plurality of frequency characteristics.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 9, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Koichi Hamada, Megumi Kimura, Momoyo Enyama, Ryou Yumiba, Makoto Sakakibara, Kei Sakai, Satoru Yamaguchi, Katsumi Setoguchi
  • Patent number: 11011346
    Abstract: To acquire a correction image by performing a sub-pixel shift process for shifting an image using a pixel interpolation filter by a pixel shift amount between pixels and a frequency correction process for correcting a frequency characteristic of the image after shifted.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: May 18, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Koichi Hamada, Kei Sakai, Satoru Yamaguchi
  • Publication number: 20210125806
    Abstract: Provided is an electron beam observation device that includes: an electron source; an objective lens concentrating an electron beam emitted from the electron source; and a control unit configured to perform control such that a plurality of images is generated by capturing images of a reference sample having a specific pattern, and a frequency characteristic is calculated for each of the plurality of images, in which an image is generated based on a secondary signal generated from a sample due to irradiation of the sample with the electron beam, and the control unit holds the plurality of frequency characteristics.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 29, 2021
    Inventors: Koichi HAMADA, Megumi KIMURA, Momoyo ENYAMA, Ryou YUMIBA, Makoto SAKAKIBARA, Kei SAKAI, Satoru YAMAGUCHI, Katsumi SETOGUCHI
  • Patent number: 10984980
    Abstract: The objective of the present invention is to provide a charged particle beam device for setting, from an image of a trench-like groove or a pit, device conditions for finding a hole or the like provided in the trench or the pit, or measuring a hole or the like provided inside the trench or the like with high accuracy. In the present invention, a charged particle beam device comprises: a deflector for causing a charged particle beam emitted from a charged particle source to perform a scan; a detector for detecting a charged particle obtained on the basis of the scanning of the charged particle beam; and a computation processing device for generating an image on the basis of the output of the detector.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: April 20, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Kei Sakai, Satoru Yamaguchi, Hideki Itai, Yasunori Takasugi, Kumiko Shimizu
  • Patent number: 10976536
    Abstract: An image forming device is provided that is capable of forming a proper integrated signal even when an image or a signal waveform is acquired from a pattern having the possibility of preventing proper matching, such as a repetition pattern, a shrinking pattern, and the like. In particular, the image forming device forms an integrated image by integrating a plurality of image signals and is provided with: a matching processing section that performs a matching process between the plurality of image signals; an image integration section that integrates the plurality of image signals for which positioning has been performed by the matching processing section; and a periodicity determination section that determines a periodicity of a pattern contained in the image signals. The matching processing section varies a size of an image signal area for the matching in accordance with a determination by the periodicity determination section.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: April 13, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yasunori Takasugi, Kei Sakai, Satoru Yamaguchi, Kazuyuki Hirao
  • Publication number: 20200411281
    Abstract: The present invention proposes a pattern measurement tool characterized by being provided with: a charged-particle beam sub-system having a tilt deflector; and a computer sub-system which is connected to the charged-particle beam sub-system and which is for executing measurement of a pattern on the basis of a signal obtained by said charged-particle beam sub-system, wherein the charged-particle beam sub-system acquires at least two signal profiles by scanning beams having at least two incidence angles, the computer sub-system measures the dimension between one end and the other end of the pattern on the basis of the at least two signal profiles, calculates the difference between the two measurements, and calculates the height of the pattern by inputting the difference value determined by said calculation into a relational formula indicating the relation between the height of the pattern and said difference value.
    Type: Application
    Filed: March 19, 2018
    Publication date: December 31, 2020
    Inventors: Satoru YAMAGUCHI, Kei SAKAI, Makoto SUZUKI, Ryota WATANABE