Patents Assigned to JEOL Ltd.
  • Patent number: 11705303
    Abstract: Provided is a sample loading method of loading a cooled sample into a sample exchange chamber of a charged particle beam apparatus includes: attaching the sample container in which a sample and liquid nitrogen are accommodated to the sample exchange chamber via a gate valve; evacuating a space between a liquid surface of the liquid nitrogen and the gate valve in a state in which the gate valve is closed; discharging the liquid nitrogen in the sample container after the space between the liquid surface of the liquid nitrogen and the gate valve has been evacuated; evacuating a space in the sample container after the liquid nitrogen in the sample container has been discharged; and opening the gate valve after the space in the sample container has been evacuated.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: July 18, 2023
    Assignee: JEOL Ltd.
    Inventors: Tomoyuki Naganuma, Naoki Fujimoto, Takeshi Kaneko
  • Patent number: 11699567
    Abstract: A mask member is provided at an entrance opening of a mirror unit. Of a first diffraction grating and a second diffraction grating, when the second diffraction grating is used, the mask member masks preceding mirrors. With this process, aberration caused by reflective X-ray is suppressed. When the first diffraction grating is used, the mask member does not function. Alternatively, the mask member and another mask member may be selectively used.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: July 11, 2023
    Assignee: JEOL Ltd.
    Inventor: Takanori Murano
  • Patent number: 11698336
    Abstract: An analysis method includes: obtaining n×m pieces of map data by repeating, m times, a map measurement in which n pieces of map data are obtained by scanning a specimen with a primary probe to detect electrons emitted from the specimen with an electron spectrometer, while measurement energy ranges of an analyzer are varied; and generating a spectral map in which a position on the specimen is associated with a spectrum based on the n×m pieces of map data, the measurement energy ranges of m times of the map measurement not overlapping each other.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: July 11, 2023
    Assignees: JEOL Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Kenichi Tsutsumi, Akihiro Tanaka, Kazushiro Yokouchi, Tatsuya Uchida, Noboru Taguchi, Shingo Tanaka
  • Patent number: 11694875
    Abstract: A charged particle beam drawing device includes: a storage unit that stores a pattern generation program for generating pattern data, the pattern generation program being a program in which an instruction for specifying a type of a figure and an instruction for specifying a regular arrangement of the figure are described; an execution unit that executes the pattern generation program stored in the storage unit; and a control unit that performs drawing control based on the pattern data generated by the executed pattern generation program.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: July 4, 2023
    Assignee: JEOL Ltd.
    Inventor: Masakazu Iwanaga
  • Patent number: 11680952
    Abstract: Described is an automated analyzer capable of effectively cleaning a dispensing probe without using a sweeping cleaning member. The automated analyzer includes: a receptacle holding portion for holding a plurality of receptacles in which aliquots of liquid are stored, an immersion cleaning solution holding portion for storing an immersion cleaning solution, an aliquot dispenser equipped with a drive mechanism for holding a dispensing probe operative to collect the aliquots of liquid from the receptacles, a measurement controller for controlling the drive mechanism and the dispensing probe such that the aliquots of liquid are successively collected at given cycles from the receptacles, and an immersion cleaning controller for controlling the drive mechanism and the dispensing probe such that an immersion cleaning operation is carried out for an immersion time that is at least twice as long as the period of each of the given cycles.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: June 20, 2023
    Assignee: JEOL Ltd.
    Inventors: Makoto Asakura, Mine Yamashita
  • Patent number: 11679489
    Abstract: A retainer is placed on a retainer holding portion formed on a sample chip worktable. With an operation of a button, a take-out support mechanism operates. That is, an upthrust pin moves upward. With this process, an orientation of a sample chip stored in the retainer is changed from a horizontal orientation to an inclined orientation. A plurality of openings through which the upthrust pin passes are formed in the retainer.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: June 20, 2023
    Assignee: JEOL Ltd.
    Inventors: Tomohisa Fukuda, Yuji Konyuba, Yuuta Ikeda, Tomohiro Haruta
  • Patent number: 11682539
    Abstract: An average mass, an average density, and an average atomic number for a plurality of elements which form a specimen are calculated. A characteristic X-ray generation depth is calculated based on the average values and a minimum excitation energy of an element of interest. When an illumination condition is set, a reference image including a figure indicating a characteristic X-ray generation range, a numerical value indicating the characteristic X-ray generation depth, or the like, is displayed.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: June 20, 2023
    Assignee: JEOL Ltd.
    Inventors: Kazutaka Watakabe, Hirofumi Kuwahara, Takenori Miyahara, Takahide Sakata, Felix Timischl
  • Patent number: 11675031
    Abstract: A rotation mechanism includes a bearing mechanism and a drive mechanism. Prior to loading of a sample unit, bearing gas is supplied to a bearing mechanism. In the course of inserting the sample unit, bearing gas is sprayed to a surface of the sample tube from around the sample tube to thereby center the sample unit.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: June 13, 2023
    Assignee: JEOL Ltd.
    Inventors: Yuki Endo, Yutaka Horino, Naohiro Kosaka, Atsuyuki Ichikawa
  • Patent number: 11674913
    Abstract: Spectrums are measured by irradiating an electron beam on a sample while varying an accelerating potential and by detecting X-rays emitted from the sample. A normalizer unit normalizes the spectrums and thereby calculates normalized spectrums. A difference calculator unit calculates difference spectrums based on the normalized spectrums. A search unit performs a search in a database for each comparison difference spectrum, and identifies compounds contained in the sample.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: June 13, 2023
    Assignee: JEOL Ltd.
    Inventors: Takaomi Yokoyama, Takanori Murano
  • Patent number: 11676796
    Abstract: A charged particle beam device including: a charged particle beam source which emits a charged particle beam; a blanking device which has an electrostatic deflector that deflects and blocks the charged particle beam; an irradiation optical system which irradiates a specimen with the charged particle beam; and a control unit which controls the electrostatic deflector, the control unit performing processing of: acquiring a target value of a dose of the charged particle beam for the specimen; setting a ratio A/B of a time A during which the charged particle beam is not blocked to a unit time B (where A?B, A?0), based on the target value; and operating the electrostatic deflector based on the ratio.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: June 13, 2023
    Assignee: JEOL Ltd.
    Inventors: Kazuki Yagi, Yu Jimbo, Bryan W. Reed, Ruth Shewmon Bloom
  • Patent number: 11668662
    Abstract: Characteristic X-rays (soft X-rays) from a sample are detected using a spectroscope to thereby generate a plurality of intensity spectrums arranged in order of time sequence. A contour map creation unit creates a contour map by converting, in accordance with a color conversion condition, the plurality of intensity spectrums into a plurality of one-dimensional maps, and arranging the plurality of one-dimensional maps in order of time sequence. When displaying the contour map, a waveform array and a difference contour map may also be displayed. Based on the contour map, a timepoint at which a state change occurs in the sample is determined.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: June 6, 2023
    Assignee: JEOL Ltd.
    Inventors: Yasuaki Yamamoto, Takanori Murano
  • Patent number: 11658000
    Abstract: There is provided a sample support capable of easily placing a sample into position. The sample support is used such that a sample floating on the surface of water is scooped and held. The sample support has: a first region on which the sample is to be placed; and a second region of higher wettability than the first region.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: May 23, 2023
    Assignee: JEOL Ltd.
    Inventors: Yuji Konyuba, Tomohiro Haruta, Yuta Ikeda, Tomohisa Fukuda
  • Patent number: 11651936
    Abstract: A charged particle beam apparatus includes: a specimen chamber; a specimen holder that is disposed in the specimen chamber; a specimen exchange chamber that is connected to the specimen chamber; a transporting mechanism that transports a specimen between the specimen chamber and the specimen exchange chamber; a first temperature sensor that measures a temperature of the specimen holder; a second temperature sensor that measures a temperature of the transporting mechanism; and a control unit. The control unit: calculates a temperature difference between the specimen holder and the transporting mechanism based on the temperature of the specimen holder and the temperature of the transporting mechanism when the control unit has received an instruction to transport a specimen; determining whether the temperature difference is a threshold or more; and stopping transportation of a specimen when the control unit has determined that the temperature difference is the threshold or more.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: May 16, 2023
    Assignee: JEOL Ltd.
    Inventors: Naoki Fujimoto, Izuru Chiyo
  • Patent number: 11640894
    Abstract: A charged particle beam apparatus that includes a magnetic lens having an electromagnetic coil composed of a pair of coils includes: a setting unit that sets a maximum current value that defines a maximum magnetomotive force of the magnetic lens based on an operation of a user; and a current control unit that controls a current to be supplied to each of the pair of coils within a current range corresponding to a set maximum current value so that thermal power consumed by the electromagnetic coil is maintained constant at thermal power corresponding to the set maximum current value.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 2, 2023
    Assignee: JEOL Ltd.
    Inventor: Toshikatsu Kaneyama
  • Patent number: 11640895
    Abstract: There is provided a sample holder capable of reducing positional deviation of a cartridge in the heightwise direction of a sample. The sample holder includes the cartridge and a holder base having a mounting portion for the cartridge. The mounting portion includes a placement surface, a first tilted surface, and a rotary drive mechanism for imparting a rotary force to the cartridge. The cartridge includes an opposing first tilted surface opposite to the first tilted surface of the mounting portion. As the rotary drive mechanism imparts the rotary force to the cartridge, the first tilted surface of the cartridge is pressed against the first tilted surface of the mounting portion, whereby the cartridge is pressed against the placement surface.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: May 2, 2023
    Assignee: JEOL Ltd.
    Inventors: Shuichi Yuasa, Takahisa Kawamura
  • Patent number: 11635444
    Abstract: A feature amount extraction unit outputs, as a data series, a feature amount of time-series data of an oscillation frequency of an AC signal of an oscillation circuit until a certain time elapses from when a dispensing probe starts to be lowered. Then, a bubble contact determination processing unit determines whether a liquid level has been normally detected based on a correlation between a waveform of the data series of the feature amount and an abnormal waveform model. Further, based on a determination result, a second controller determines a deviation between a tip portion of the dispensing probe and the liquid level in a container and a factor of the deviation.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: April 25, 2023
    Assignee: JEOL Ltd.
    Inventor: Tsuyoshi Yaita
  • Patent number: 11631569
    Abstract: Provided is a charged particle beam system capable of reducing the force applied to a sample when a chuck device grips the sample. The charged particle beam system is typified by an electron microscope including a sample chamber, a sample exchange chamber connected to the sample chamber, a sample container capable of being removably attached in the sample exchange chamber, and a transport device for transporting the sample between the sample container and the sample exchange chamber. The transport device includes the chuck device for gripping the sample, a drive mechanism for moving the chuck device in a given direction, a mechanical driver for actuating the chuck device, and a power transmission mechanism for transmitting power of the mechanical driver to the chuck device. The power transmission mechanism includes a shaft and a resilient member that elastically deforms when a force in the given direction is applied to the shaft.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: April 18, 2023
    Assignee: JEOL Ltd.
    Inventor: Shuichi Yuasa
  • Patent number: 11621143
    Abstract: An ion milling apparatus includes a pair of shielding members sandwiching a sample, and an ion source configured to irradiate the sample with an ion beam. The ion milling apparatus is configured to be capable of irradiating the sample with the ion beam in a first mode of irradiating the sample with the ion beam via one shielding member and in a second mode of irradiating the sample with the ion beam via the other shielding member.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: April 4, 2023
    Assignee: JEOL Ltd.
    Inventors: Shogo Kataoka, Tatsuro Mino, Koji Todoroki
  • Patent number: 11609194
    Abstract: Nuclear spins of particular atoms (14N) which distinctively exist in a crystal of an active pharmaceutical ingredient is manipulated, so that an initial magnetization (modulated magnetization) is caused in nearby hydrogen atoms which exist near the particular atoms in the crystal. The initial magnetization of the nearby hydrogen atoms is spread to peripheral hydrogen atoms which exist at a periphery of the nearby hydrogen atoms in the crystal. A magnetization which is spread in the crystal is directly or indirectly observed.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: March 21, 2023
    Assignees: JEOL Ltd., RIKEN
    Inventor: Yusuke Nishiyama
  • Patent number: 11609191
    Abstract: An analyzer includes a wavelength-dispersive X-ray spectrometer and a control unit that controls the wavelength-dispersive X-ray spectrometer, the control unit performing: processing of acquiring an analysis result of preparatory analysis performed on a specimen to be analyzed; processing of setting spectroscopic conditions for WDS analysis using the wavelength-dispersive X-ray spectrometer based on the analysis result of the preparatory analysis; and processing of performing the WDS analysis on the specimen to be analyzed under the set spectroscopic conditions.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: March 21, 2023
    Assignee: JEOL Ltd.
    Inventors: Kazunori Tsukamoto, Shigeru Honda