Patents by Inventor Yoshifumi Taniguchi

Yoshifumi Taniguchi 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: 10535497
    Abstract: An electron microscope for observation by illuminating an electron beam on a specimen, includes: an edge element disposed in a diffraction plane where a direct beam not diffracted by but transmitted through the specimen converges or a plane equivalent to the diffraction plane; and a control unit for controlling the electron beam or the edge element. The edge element includes a blocking portion for blocking the electron beam, and an aperture for allowing the passage of the electron beam. The aperture is defined by an edge of the blocking portion in a manner that the edge surrounds a convergence point of the direct beam in the diffraction plane. The control unit varies contrast of an observation image by shifting, relative to the edge, the convergence point of the direct beam along the edge while maintaining a predetermined distance between the convergence point of the direct beam and the edge.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: January 14, 2020
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hirokazu Tamaki, Ken Harada, Keiji Tamura, Yoshifumi Taniguchi, Hiroto Kasai, Toshie Yaguchi, Takafumi Yotsuji
  • Publication number: 20190323835
    Abstract: A height detection apparatus is configured to project a pattern on a sample arranged at any of a plurality of reference positions and configured to detect a height of the sample. The apparatus includes: a projection optical system that generates a plurality of spatially separated light beams each having the pattern and projects the generated spatially separated light beams onto the sample; an imaging element that images the pattern reflected from the sample; a detection optical system that guides the pattern reflected from the sample to the imaging element; and at least one optical path length correction member disposed on an optical path different from an optical path having a shortest optical path length among a plurality of optical paths corresponding to the plurality of light beams at a position where the plurality of light beams is spatially separated.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 24, 2019
    Inventors: Yoshifumi SEKIGUCHI, Naoya NAKAI, Koichi TANIGUCHI, Makoto SUZUKI
  • Publication number: 20190131107
    Abstract: An electron microscope for observation by illuminating an electron beam on a specimen, includes: an edge element disposed in a diffraction plane where a direct beam not diffracted by but transmitted through the specimen converges or a plane equivalent to the diffraction plane; and a control unit for controlling the electron beam or the edge element. The edge element includes a blocking portion for blocking the electron beam, and an aperture for allowing the passage of the electron beam. The aperture is defined by an edge of the blocking portion in a manner that the edge surrounds a convergence point of the direct beam in the diffraction plane. The control unit varies contrast of an observation image by shifting, relative to the edge, the convergence point of the direct beam along the edge while maintaining a predetermined distance between the convergence point of the direct beam and the edge.
    Type: Application
    Filed: August 22, 2016
    Publication date: May 2, 2019
    Inventors: Hirokazu TAMAKI, Ken HARADA, Keiji TAMURA, Yoshifumi TANIGUCHI, Hiroto KASAI, Toshie YAGUCHI, Takafumi YOTSUJI
  • Publication number: 20180076004
    Abstract: A charged particle beam device wherein a transmission image corresponding to an arbitrary diffraction spot or a diffraction pattern corresponding to a partial range in the transmission image are easily and automatically captured. A charged particle beam device having: an image-capturing unit for forming an image of a sample; a diaphragm disposed in the image-capturing unit, a plurality of openings having different sizes for transmitting an electron beam from the sample being formed in the diaphragm; a movement unit for varying the position of the diaphragm; and a display unit for displaying the formed image, wherein when the operator selects, e.g., a diffraction spot (A) on the display unit, the movement unit moves the diaphragm from the positional relationship between the diaphragm and the image in accordance with the position of the diffraction spot (A).
    Type: Application
    Filed: April 14, 2015
    Publication date: March 15, 2018
    Inventors: Akinari HANAWA, Hideki KIKUCHI, Yoshifumi TANIGUCHI, Toshie YAGUCHI, Takashi DOBASHI, Keitaro WATANABE, Hirokazu TAMAKI
  • Patent number: 9679738
    Abstract: The present invention relates to a lens-less Foucault method wherein a transmission electron microscope objective lens (5) is turned off, an electron beam crossover (11, 13) is matched with a selected area aperture (65), and the focal distance of a first imaging lens (61) can be changed to enable switching between a sample image observation mode and a sample diffraction pattern observation mode, characterized in that a deflector (81) is disposed in a stage following the first imaging lens (61), and conditions for an irradiating optical system (4) can be fixed after conditions for the imaging optical system have been determined. This allows a lens-less Foucault method to be implemented in a common general-use transmission electron microscope with no magnetic shielding lens equipped, without burdening the operator.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: June 13, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroaki Matsumoto, Takeshi Sato, Yoshifumi Taniguchi, Ken Harada
  • Patent number: 9558910
    Abstract: A sample holder for an electron microscope has multiple sample stands, can allow at least one sample stand to move, and enables multiple samples for a transmission electron microscope to be prepared by a focused ion beam apparatus. A holder tip opening is provided in a tip of the sample holder. A back end of the sample holder has a knob, a rolling mechanism, a coarse adjustment mechanism, and a connector. By pressing the knob, fixation of the rolling mechanism is canceled, and the back end from the rolling mechanism and the tip of the sample holder will rotate. This rolling mechanism enables arrangement of the samples to be rotated in both the observing of a sample and the preparing of a sample for a transmission electron microscope with the focused ion beam apparatus. Moreover, the sample stand is movable by the coarse adjustment mechanism and the fine adjustment mechanism.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: January 31, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Shohei Terada, Yoshifumi Taniguchi, Yasuhira Nagakubo
  • Publication number: 20160196952
    Abstract: The present invention relates to a lens-less Foucault method wherein a transmission electron microscope objective lens (5) is turned off, an electron beam crossover (11, 13) is matched with a selected area aperture (65), and the focal distance of a first imaging lens (61) can be changed to enable switching between a sample image observation mode and a sample diffraction pattern observation mode, characterized in that a deflector (81) is disposed in a stage following the first imaging lens (61), and conditions for an irradiating optical system (4) can be fixed after conditions for the imaging optical system have been determined. This allows a lens-less Foucault method to be implemented in a common general-use transmission electron microscope with no magnetic shielding lens equipped, without burdening the operator.
    Type: Application
    Filed: May 16, 2014
    Publication date: July 7, 2016
    Inventors: Hiroaki MATSUMOTO, Takeshi SATO, Yoshifumi TANIGUCHI, Ken HARADA
  • Publication number: 20160008392
    Abstract: The present invention addresses the problem of providing an agent for lifestyle-related diseases, an oral composition, and a high-fat food product that can be conveniently, safely, and continuously consumed on a daily basis. This problem is solved by an agent for lifestyle-related diseases that contains a specific branched ?-glucan having the characteristics described in the present invention, an oral composition comprising the agent, and a high-fat food product comprising the same.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 14, 2016
    Applicant: Hayashibara Co., Ltd.
    Inventors: Yoshifumi TANIGUCHI, Shinichiro INOUE, Hikaru WATANABE
  • Publication number: 20140353499
    Abstract: A sample holder for an electron microscope has multiple sample stands, can allow at least one sample stand to move, and enables multiple samples for a transmission electron microscope to be prepared by a focused ion beam apparatus. A holder tip opening is provided in a tip of the sample holder. A back end of the sample holder has a knob, a rolling mechanism, a coarse adjustment mechanism, and a connector. By pressing the knob, fixation of the rolling mechanism is canceled, and the back end from the rolling mechanism and the tip of the sample holder will rotate. This rolling mechanism enables arrangement of the samples to be rotated in both the observing of a sample and the preparing of a sample for a transmission electron microscope with the focused ion beam apparatus. Moreover, the sample stand is movable by the coarse adjustment mechanism and the fine adjustment mechanism.
    Type: Application
    Filed: December 3, 2012
    Publication date: December 4, 2014
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Shohei Terada, Yoshifumi Taniguchi, Yasuhira Nagakubo
  • Patent number: 8530858
    Abstract: A transmission electron microscope apparatus, a sample holder and a sample stage and a method for acquiring spectral images as well are provided which can acquire spectral images at a time from a plurality of samples and measure highly accurate chemical shifts from electron energy loss spectra extracted from the spectral images.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: September 10, 2013
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Shohei Terada, Yoshifumi Taniguchi
  • Patent number: 8436301
    Abstract: In a spectral image formed by two orthogonal axes, one of which is an axis of the amount of energy loss and the other of which is an axis of positional information, by the use of an electron spectrometer and a transmission electron microscope, distortion in the spectral image of a sample to be analyzed is corrected with high efficiency and high accuracy by comparing electron beam positions calculated from a two-dimensional electron beam position image formed by the two orthogonal axes (the axis of the amount of energy loss and the axis of positional information) with reference electron beam positions, and calculating amounts of the distortion based on the differences of the electron beam positions. Method and apparatus are offered which correct distortion in a spectral image with high efficiency and high accuracy, the image being formed by the two orthogonal axes (the axis of the amount of energy loss and the axis of positional information).
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: May 7, 2013
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Shohei Terada, Yoshifumi Taniguchi, Tatsumi Hirano
  • Patent number: 8263936
    Abstract: A transmission electron microscope is capable of correcting, with high efficiency and high accuracy, an electron energy loss spectrum extracted from each of measured portions included in an electron energy loss spectral image with two axes representing the amount of an energy loss and positional information on a measured portion. The transmission electron microscope has an electron spectroscope and a spectrum correction system. The spectrum correction system corrects a spectrum extracted from each measured portion included in an electron energy loss spectral image acquired from a sample based on a difference between a spectrum extracted from a standard portion of a standard spectral image and a spectrum extracted from a portion different from the standard portion.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: September 11, 2012
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Shohei Terada, Yoshifumi Taniguchi
  • Publication number: 20110240854
    Abstract: In a spectral image formed by two orthogonal axes, one of which is an axis of the amount of energy loss and the other of which is an axis of positional information, by the use of an electron spectrometer and a transmission electron microscope, distortion in the spectral image of a sample to be analyzed is corrected with high efficiency and high accuracy by comparing electron beam positions calculated from a two-dimensional electron beam position image formed by the two orthogonal axes (the axis of the amount of energy loss and the axis of positional information) with reference electron beam positions, and calculating amounts of the distortion based on the differences of the electron beam positions. Method and apparatus are offered which correct distortion in a spectral image with high efficiency and high accuracy, the image being formed by the two orthogonal axes (the axis of the amount of energy loss and the axis of positional information).
    Type: Application
    Filed: November 11, 2009
    Publication date: October 6, 2011
    Inventors: Shohei Terada, Yoshifumi Taniguchi, Tatsumi Hirano
  • Patent number: 7812310
    Abstract: Information of a specimen holder or information of a specimen mounted on the specimen holder is stored in a memory inside the specimen holder mounted to an electron microscope. The memory is accessed to transmit the information of the specimen holder to the electron microscope, thereby ensuring that the user can use the specimen holder without mistaking characteristics of the specimen holder and danger of erroneous recording of the specimen information can be reduced.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: October 12, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroyuki Tanaka, Mitsugu Sato, Masashi Sasaki, Yoshifumi Taniguchi
  • Patent number: 7723682
    Abstract: In order to correct measurement magnification and measurement position of a spectral image with high efficiency and with high accuracy using an electronic spectroscope and a transmission electron microscope regarding the spectral image formed in two orthogonal axes which are an amount of energy loss axis and a measurement position information axis; a method for correcting magnification and position and a system for correcting magnification and position, both of which are capable of correcting measurement magnification and measurement position of a spectral image with high efficiency and with high accuracy using an electronic spectroscope and a transmission electron microscope regarding the spectral image formed in two orthogonal axes which are an amount of energy loss axis and a measurement position information axis, are provided.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: May 25, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Shohei Terada, Yoshifumi Taniguchi
  • Patent number: 7622714
    Abstract: An object of the present invention is to provide a standard specimen for a charged particle beam enabling highly precise measurement of sub-micron to several 10 ?m in size on an image and an apparatus using the standard specimen. In order to attain the above described object, the present invention provides a standard specimen for a charged particle beam including two different specimens for magnification or measurement calibration and a charged particle beam apparatus using the specimens.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: November 24, 2009
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Toshie Yaguchi, Takeo Kamino, Yoshifumi Taniguchi
  • Publication number: 20090270342
    Abstract: An object of the present invention is to provide an immunoregulatory agent, which can be continuously ingested on daily diet and has no fear of causing side effects, and a method for regulating immunity. The present invention solves the above object by providing an immunoregulatory agent comprising lactosucrose as an effective ingredient and a method for regulating immunity using lactosucrose.
    Type: Application
    Filed: July 6, 2007
    Publication date: October 29, 2009
    Inventors: Keiko Hino, Tsuyoshi Sadakiyo, Yoshifumi Taniguchi, Kanso Iwaki
  • Publication number: 20090242766
    Abstract: A transmission electron microscope is capable of correcting, with high efficiency and high accuracy, an electron energy loss spectrum extracted from each of measured portions included in an electron energy loss spectral image with two axes representing the amount of an energy loss and positional information on a measured portion. The transmission electron microscope has an electron spectroscope and a spectrum correction system. The spectrum correction system corrects a spectrum extracted from each measured portion included in an electron energy loss spectral image acquired from a sample based on a difference between a spectrum extracted from a standard portion of a standard spectral image and a spectrum extracted from a portion different from the standard portion.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 1, 2009
    Inventors: Shohei TERADA, Yoshifumi Taniguchi
  • Publication number: 20080315097
    Abstract: Information of a specimen holder or information of a specimen mounted on the specimen holder is stored in a memory inside the specimen holder mounted to an electron microscope. The memory is accessed to transmit the information of the specimen holder to the electron microscope, thereby ensuring that the user can use the specimen holder without mistaking characteristics of the specimen holder and danger of erroneous recording of the specimen information can be reduced.
    Type: Application
    Filed: April 30, 2008
    Publication date: December 25, 2008
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hiroyuki Tanaka, Mitsugu Sato, Masashi Sasaki, Yoshifumi Taniguchi
  • Patent number: D636005
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 12, 2011
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Mitsuru Oonuma, Akira Omachi, Yoshifumi Taniguchi, Isao Nagaoki, Hiroshi Aoyagi