Patents by Inventor Shigeru Kawamata

Shigeru Kawamata 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: 11404242
    Abstract: To assist an operator in setting an observation conditions, so as to acquire an image with a desired image quality (such as contrast) in a charged particle beam device without falling into trial and error based on the experience of the operator. Therefore, the charged particle beam device includes a stage 115 on which a sample is placed, a charged particle optical system configured to irradiate the sample with a charged particle beam, detectors 121 and 122 configured to detect an electron generated by an interaction between the charged particle beam and the sample, a control unit 103 configured to control the stage and the charged particle optical system according to an observation condition set by the operator and configured to form an image based on a detection signal from the detectors, and a display 104 configured to display an observation assist screen for setting the observation condition.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: August 2, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yuki Numata, Hirofumi Sato, Shigeru Kawamata
  • Patent number: 11385193
    Abstract: An object of the invention is to easily acquire images of a position corresponding among a plurality of sample sections in an imaging device that acquires images of the plurality of sample sections. The imaging device according to the invention generates a cursor for specifying a first observation region and a contour portion of a first sample section, and superimposes the cursor on a contour portion of a second sample section so as to calculate coordinates of a second observation region of the second sample section.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: July 12, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Hiroyuki Chiba, Miku Maehara, Yoshinobu Hoshino, Shigeru Kawamata
  • Patent number: 11321585
    Abstract: Provided is an image classification device that facilitates efficient creation of teacher data and comprehensive evaluation on a basis of knowledge and experience of the user.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: May 3, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Yaku Maeda, Akira Ikeuchi, Shigeru Kawamata, Hiromi Mise, Akira Sawaguchi
  • Patent number: 11239050
    Abstract: An object of the invention is to easily acquire an image of a position corresponding between each section in an imaging device that acquires an image of a plurality of sample sections. The imaging device according to the invention calculates, according to a correspondence relationship between a characteristic point and a first observation region in a first sample section, coordinates of a second observation region of a second sample section, and generates an observation image at the calculated coordinates (see FIG. 7B).
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 1, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Miku Maehara, Shigeru Kawamata, Yoshinobu Hoshino, Hiroyuki Chiba
  • Publication number: 20210247335
    Abstract: An object of the invention is to easily acquire images of a position corresponding among a plurality of sample sections in an imaging device that acquires images of the plurality of sample sections. The imaging device according to the invention generates a cursor for specifying a first observation region and a contour portion of a first sample section, and superimposes the cursor on a contour portion of a second sample section so as to calculate coordinates of a second observation region of the second sample section.
    Type: Application
    Filed: May 10, 2018
    Publication date: August 12, 2021
    Inventors: Hiroyuki CHIBA, Miku MAEHARA, Yoshinobu HOSHINO, Shigeru KAWAMATA
  • Publication number: 20210193432
    Abstract: An object of the invention is to easily acquire an image of a position corresponding between each section in an imaging device that acquires an image of a plurality of sample sections. The imaging device according to the invention calculates, according to a correspondence relationship between a characteristic point and a first observation region in a first sample section, coordinates of a second observation region of a second sample section, and generates an observation image at the calculated coordinates (see FIG. 7B).
    Type: Application
    Filed: October 16, 2017
    Publication date: June 24, 2021
    Inventors: Miku MAEHARA, Shigeru KAWAMATA, Yoshinobu HOSHINO, Hiroyuki CHIBA
  • Patent number: 10763074
    Abstract: A charged particle beam apparatus includes: an optical system that irradiates a sample mounted on a sample stage with a charged particle beam; at least one detector that detects a signal generated from the sample; an imaging device that acquires an observation image; a mechanism for changing observation positions in the sample which has at least one of a stage that moves the sample stage and a deflector that changes the charged particle beam's irradiation position; a display unit that displays an operation screen provided with an observation image displaying portion that displays the observation image and an observation position displaying portion that displays an observation position of the observation image; and a controller that controls display processing of the operation screen. The controller superimposes and displays on the observation position displaying portion a plurality of observation position images at different magnifications, based on the observation images' magnifications and coordinates.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: September 1, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Hiroyuki Chiba, Yoshinobu Hoshino, Shigeru Kawamata
  • Patent number: 10763078
    Abstract: There is provided a charged particle beam device which includes a charged particle beam source, a charged particle beam optical system that irradiates a sample with a charged particle beam from the charged particle beam source, a detector that detects a secondary signal generated from the sample by irradiation with the charged particle beam, and an image processing unit that executes integration processing of image data obtained from the secondary signal and outputting an integrated image, and in which the image processing unit executes a normalization integration computation of outputting an integrated image in which a luminance value of the integrated image is always “1” in an integration process.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: September 1, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Masato Kamio, Masashi Watanabe, Katsunori Hirano, Yoshinobu Hoshino, Shigeru Kawamata, Yuichi Sakurai
  • Publication number: 20200125894
    Abstract: Provided is an image classification device that facilitates efficient creation of teacher data and comprehensive evaluation on a basis of knowledge and experience of the user.
    Type: Application
    Filed: April 14, 2017
    Publication date: April 23, 2020
    Inventors: Yaku MAEDA, Akira IKEUCHI, Shigeru KAWAMATA, Hiromi MISE, Akira SAWAGUCHI
  • Publication number: 20200126754
    Abstract: To assist an operator in setting an observation conditions, so as to acquire an image with a desired image quality (such as contrast) in a charged particle beam device without falling into trial and error based on the experience of the operator. Therefore, the charged particle beam device includes a stage 115 on which a sample is placed, a charged particle optical system configured to irradiate the sample with a charged particle beam, detectors 121 and 122 configured to detect an electron generated by an interaction between the charged particle beam and the sample, a control unit 103 configured to control the stage and the charged particle optical system according to an observation condition set by the operator and configured to form an image based on a detection signal from the detectors, and a display 104 configured to display an observation assist screen for setting the observation condition.
    Type: Application
    Filed: April 21, 2017
    Publication date: April 23, 2020
    Inventors: Yuki NUMATA, Hirofumi SATO, Shigeru KAWAMATA
  • Publication number: 20200066484
    Abstract: There is provided a charged particle beam device which includes a charged particle beam source, a charged particle beam optical system that irradiates a sample with a charged particle beam from the charged particle beam source, a detector that detects a secondary signal generated from the sample by irradiation with the charged particle beam, and an image processing unit that executes integration processing of image data obtained from the secondary signal and outputting an integrated image, and in which the image processing unit executes a normalization integration computation of outputting an integrated image in which a luminance value of the integrated image is always “1” in an integration process.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Masato KAMIO, Masashi WATANABE, Katsunori HIRANO, Yoshinobu HOSHINO, Shigeru KAWAMATA, Yuichi SAKURAI
  • Publication number: 20200056141
    Abstract: Provided is a charged particle beam apparatus capable of more objectively and highly accurately calculating a feature of a cell from an observation image of a cell and evaluating a cell. The charged particle beam apparatus includes an image acquisition unit 18 that acquires an image of a cell, a contour extraction unit 19 that extracts a contour of the image, a feature calculation unit 20 that calculates a morphological feature of the contour based on the contour and calculates the feature of an internal structure such as a cytoplasm contained in an internal area of the contour, and a determination unit 21 that determines quality and/or functionality of the cell based on the feature, and can objectively and highly accurately evaluate the quality and/or the functionality of the cell included in the captured image.
    Type: Application
    Filed: April 14, 2017
    Publication date: February 20, 2020
    Inventors: Akira IKEUCHI, Shigeru KAWAMATA, Hiromi MISE, Akira SAWAGUCHI
  • Publication number: 20200013583
    Abstract: A charged particle beam apparatus includes: an optical system that irradiates a sample mounted on a sample stage with a charged particle beam; at least one detector that detects a signal generated from the sample; an imaging device that acquires an observation image; a mechanism for changing observation positions in the sample which has at least one of a stage that moves the sample stage and a deflector that changes the charged particle beam's irradiation position; a display unit that displays an operation screen provided with an observation image displaying portion that displays the observation image and an observation position displaying portion that displays an observation position of the observation image; and a controller that controls display processing of the operation screen. The controller superimposes and displays on the observation position displaying portion a plurality of observation position images at different magnifications, based on the observation images' magnifications and coordinates.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hiroyuki CHIBA, Yoshinobu HOSHINO, Shigeru KAWAMATA
  • Patent number: 10522325
    Abstract: There is provided a charged particle beam device which includes a charged particle beam source, a charged particle beam optical system that irradiates a sample with a charged particle beam from the charged particle beam source, a detector that detects a secondary signal generated from the sample by irradiation with the charged particle beam, and an image processing unit that executes integration processing of image data obtained from the secondary signal and outputting an integrated image, and in which the image processing unit executes a normalization integration computation of outputting an integrated image in which a luminance value of the integrated image is always “1” in an integration process.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: December 31, 2019
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Masato Kamio, Masashi Watanabe, Katsunori Hirano, Yoshinobu Hoshino, Shigeru Kawamata, Yuichi Sakurai
  • Patent number: 10453650
    Abstract: A charged particle beam apparatus includes: an optical system that irradiates a sample mounted on a sample stage with a charged particle beam; at least one detector that detects a signal generated from the sample; an imaging device that acquires an observation image; a mechanism for changing observation positions in the sample which has at least one of a stage that moves the sample stage and a deflector that changes the charged particle beam's irradiation position; a display unit that displays an operation screen provided with an observation image displaying portion that displays the observation image and an observation position displaying portion that displays an observation position of the observation image; and a controller that controls display processing of the operation screen. The controller superimposes and displays on the observation position displaying portion a plurality of observation position images at different magnifications, based on the observation images' magnifications and coordinates.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: October 22, 2019
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hiroyuki Chiba, Yoshinobu Hoshino, Shigeru Kawamata
  • Publication number: 20180323035
    Abstract: A charged particle beam apparatus includes: an optical system that irradiates a sample mounted on a sample stage with a charged particle beam; at least one detector that detects a signal generated from the sample; an imaging device that acquires an observation image; a mechanism for changing observation positions in the sample which has at least one of a stage that moves the sample stage and a deflector that changes the charged particle beam's irradiation position; a display unit that displays an operation screen provided with an observation image displaying portion that displays the observation image and an observation position displaying portion that displays an observation position of the observation image; and a controller that controls display processing of the operation screen. The controller superimposes and displays on the observation position displaying portion a plurality of observation position images at different magnifications, based on the observation images' magnifications and coordinates.
    Type: Application
    Filed: November 25, 2015
    Publication date: November 8, 2018
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hiroyuki CHIBA, Yoshinobu HOSHINO, Shigeru KAWAMATA
  • Publication number: 20180301316
    Abstract: There is provided a charged particle beam device which includes a charged particle beam source, a charged particle beam optical system that irradiates a sample with a charged particle beam from the charged particle beam source, a detector that detects a secondary signal generated from the sample by irradiation with the charged particle beam, and an image processing unit that executes integration processing of image data obtained from the secondary signal and outputting an integrated image, and in which the image processing unit executes a normalization integration computation of outputting an integrated image in which a luminance value of the integrated image is always “1” in an integration process.
    Type: Application
    Filed: November 27, 2015
    Publication date: October 18, 2018
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Masato KAMIO, Masashi WATANABE, Katsunori HIRANO, Yoshinobu HOSHINO, Shigeru KAWAMATA, Yuichi SAKURAI
  • Patent number: 9202669
    Abstract: According to the present invention, in a charged particle beam device having a charged particle source, an objective lens for focusing a primary-charged particle beam emitted from the charged particle source, a scan deflector for scanning the primary-charged particle beam on a sample, and a detector for detecting signal particles generated from the sample under scanning of the primary-charged particle beam, whereby a sample image is obtained by using the signal particles of the detector, the charged particle beam device comprises a deflector for deflecting an angle of irradiation of the primary-charged particle beam onto the sample, first and second independent power supplies for passing currents to the deflector, and a switch for switching over voltages applied from the two power supplies in unit of one line or one frame of scanning of the primary-charged particle beam.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: December 1, 2015
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Tatsuya Hirato, Hiroyuki Komuro, Shigeru Kawamata
  • Patent number: 9099283
    Abstract: A signal processing unit (21) of a charged particle microscope calculates a degradation function (H (s)) of an image, on the basis of detection signals (11) obtained by scanning a charged particle beam (2) at two types of scanning speeds, a scanning speed within the bandwidths of a detector (12) and an amplifying circuit at a subsequent stage of the detector, and another scanning speed exceeding the upper limit of the bandwidths. Then, the signal processing unit creates a one-dimensional correction filter for recovering image quality, from an inverse function (H?1 (s)) of the degradation function, and applies the one-dimensional correction filter to the detection signal recorded at the scanning speed exceeding the upper limit of the bandwidths of the detector and the amplifying circuit at a subsequent stage of the detector, or to a two-dimensional image based on the detection signal.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 4, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yoshinobu Hoshino, Shigeru Kawamata, Eisaku Oho
  • Patent number: 9012842
    Abstract: A control device (50) for a charged particle beam device (100) tilts the irradiation axis of a primary electron beam (4) to the left, straight, or to the right via tilting coils (11, 12) each time the primary electron beam (4) scans the surface of a sample (15) over a single scanning line. When the irradiation axis is changed, the focal point of the primary electron beam (4) is adjusted by a focal point-adjusting coil (14) based on the tilt of the irradiation axis in order to take a left-tilted observation image, a non-tilted observation image or a right-tilted observation image of the surface of a sample (15) for each scanning line. The left-tilted observation images, non-tilted observation images and right-tilted observation images for the scanning lines obtained up to this point are simultaneously displayed on the same display device (31). In this way, focused non-tilted observation images and focused tilted observation images can be taken and displayed nearly simultaneously.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 21, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Wataru Kotake, Shigeru Kawamata, Sukehiro Ito