Patents by Inventor Hisanao Akima
Hisanao Akima 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).
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Publication number: 20230297782Abstract: A non-transitory computer-readable storage medium storing an output program that causes at least one computer to execute a process, the process includes analyzing first meaning representations of a target sentence to generate a first combination of subjects, verbs, and objects in the target sentence; searching for a second combination of subjects, verbs, and objects based on a knowledge base obtained by analyzing second meaning representations of input text, the knowledge base storing information that indicates a third combination of subjects, verbs, and objects in sentences, the third combination in the sentence having the cause-effect relationship with fourth combinations of subjects, verbs, and objects in each of sentences in the input text; and outputting the searched second combination.Type: ApplicationFiled: July 22, 2022Publication date: September 21, 2023Applicant: FUJITSU LIMITEDInventor: Hisanao AKIMA
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Patent number: 11756616Abstract: A computer includes: a memristor array including memristors arranged at intersections between word lines and a first bit line in the memristor array and at intersections between the word lines and second bit lines in the memristor array; an adder circuit configured to obtain sum voltages for the second bit lines by adding first voltages generated according to currents that flow in the second bit lines when a first pattern is supplied to the word lines to difference voltages between a reference voltage generated according to a current that flows in the first bit line when a second pattern is supplied to the word lines and second voltages generated according to currents that flow in the second bit lines when a second pattern is supplied to the word lines; and a detection circuit that detects a second bit line that corresponds to a maximum value of the sum voltages.Type: GrantFiled: November 10, 2021Date of Patent: September 12, 2023Assignee: FUJITSU LIMITEDInventors: Hiroshi Nakao, Masayuki Hiromoto, Hisanao Akima, Teruo Ishihara, Takuji Yamamoto
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Patent number: 11520857Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes acquiring, based on a compression model that is acquired by learning processing on a set of data generated by using a combination of values of variables and that compresses dimensions of data, a point corresponding to data generated by using a predetermined combination of the values of variables within a compressed space; acquiring, based on the point corresponding to the data generated by using the predetermined combination, a target point within the space corresponding to a target value of a characteristic changing in accordance with the values of variables, and a regression model within the space for a predetermined variable of variables, a change amount of the predetermined variable; and changing the value of the predetermined variable included in the predetermined combination by using the change amount.Type: GrantFiled: February 26, 2020Date of Patent: December 6, 2022Assignee: FUJITSU LIMITEDInventor: Hisanao Akima
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Publication number: 20220270683Abstract: A computer includes: a memristor array including memristors arranged at intersections between word lines and a first bit line in the memristor array and at intersections between the word lines and second bit lines in the memristor array; an adder circuit configured to obtain sum voltages for the second bit lines by adding first voltages generated according to currents that flow in the second bit lines when a first pattern is supplied to the word lines to difference voltages between a reference voltage generated according to a current that flows in the first bit line when a second pattern is supplied to the word lines and second voltages generated according to currents that flow in the second bit lines when a second pattern is supplied to the word lines; and a detection circuit that detects a second bit line that corresponds to a maximum value of the sum voltages.Type: ApplicationFiled: November 10, 2021Publication date: August 25, 2022Applicant: FUJITSU LIMITEDInventors: Hiroshi Nakao, Masayuki Hiromoto, Hisanao Akima, TERUO ISHIHARA, Takuji YAMAMOTO
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Patent number: 11144317Abstract: An AC parallelization circuit includes a transmitting circuit configured to transmit a stop signal to instruct a device for executing calculation in an iteration immediately preceding an iteration for which a concerned device is responsible to stop the calculation in loop-carried dependency calculation; and an estimating circuit configured to generate, as a result of executing the calculation in the preceding iteration, an estimated value to be provided to an arithmetic circuit when the transmitting circuit transmits the stop signal.Type: GrantFiled: August 20, 2020Date of Patent: October 12, 2021Assignee: FUJITSU LIMITEDInventor: Hisanao Akima
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Publication number: 20210097402Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes obtaining a machine learning model having learned characteristic amounts of a plurality of training data including an objective function; calculating similarities between the characteristic amounts of the plurality of training data by inputting the plurality of training data to the obtained machine learning model; specifying a data group having a high similarity with a desired objective function from the characteristic amounts of the plurality of training data based on distances of the calculated similarities; and acquiring an optimum solution for the desired objective function by using the specified data group.Type: ApplicationFiled: September 22, 2020Publication date: April 1, 2021Applicant: FUJITSU LIMITEDInventors: Eiji Ohta, Hisanao Akima
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Publication number: 20210072988Abstract: An AC parallelization circuit includes a transmitting circuit configured to transmit a stop signal to instruct a device for executing calculation in an iteration immediately preceding an iteration for which a concerned device is responsible to stop the calculation in loop-carried dependency calculation; and an estimating circuit configured to generate, as a result of executing the calculation in the preceding iteration, an estimated value to be provided to an arithmetic circuit when the transmitting circuit transmits the stop signal.Type: ApplicationFiled: August 20, 2020Publication date: March 11, 2021Applicant: FUJITSU LIMITEDInventor: Hisanao Akima
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Publication number: 20200285690Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes acquiring, based on a compression model that is acquired by learning processing on a set of data generated by using a combination of values of variables and that compresses dimensions of data, a point corresponding to data generated by using a predetermined combination of the values of variables within a compressed space; acquiring, based on the point corresponding to the data generated by using the predetermined combination, a target point within the space corresponding to a target value of a characteristic changing in accordance with the values of variables, and a regression model within the space for a predetermined variable of variables, a change amount of the predetermined variable; and changing the value of the predetermined variable included in the predetermined combination by using the change amount.Type: ApplicationFiled: February 26, 2020Publication date: September 10, 2020Applicant: FUJITSU LIMITEDInventor: Hisanao Akima
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Patent number: 9484182Abstract: The present invention provides a method and apparatus for correcting an aberration in a charged-particle-beam device. The apparatus includes a charged-particle-beam source, a charged-particle optical system that irradiates a specimen with charged particles emitted from the charged-particle-beam source, an aberration corrector that corrects an aberration of the charged-particle optical system, a control unit that controls the charged-particle optical system and the aberration corrector, a through-focus imaging unit that obtains plural Ronchigrams in which a focal position of the charged-particle optical system is changed, and an aberration calculation unit that divides the obtained Ronchigram into plural local areas, and calculates the amount of the aberration based on line focuses detected in the local areas.Type: GrantFiled: August 7, 2013Date of Patent: November 1, 2016Assignee: Hitachi High-Technologies CorporationInventors: Hisanao Akima, Takaho Yoshida
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Patent number: 9312094Abstract: This charged particle beam device comprises: an electron beam source (1); a charged particle optical system that includes an object lens (9) and that irradiates a sample (10) with electrons emitted from the electron beam source (1) as an electron beam (2); an aberration corrector (6) that corrects aberrations in the charged particle optical system; and a control unit (24) that controls the components of the charged particle optical system and the aberration corrector (6). The charged particle beam device further comprises an automatic aberration-correcting device (17) that autonomously acquires, through leaning, optimum adjustment procedures in order to reduce the time required for correcting parasitic aberrations that arise in the aberration corrector (6).Type: GrantFiled: July 9, 2012Date of Patent: April 12, 2016Assignee: Hitachi High-Technologies CorporationInventors: Hisanao Akima, Yoichi Hirayama
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Patent number: 9224574Abstract: Beam scanning for obtaining a scanned image is performed by an aberration corrector, which is an aberration measured lens, and a scanning coil disposed above an objective lens, instead of a scanning coil ordinarily placed on the objective lens. Thus, distortion with an aberration of an aberration measured lens is scanned on the surface of a sample, and then a scanned image is formed from a scattered electron beam, a transmission electron beam, or a reflected/secondary electron beam that is generated by the scan, achieving a scanning aberration information pattern equivalent to a conventional Ronchigram. Such means is a feature of the present invention.Type: GrantFiled: November 4, 2011Date of Patent: December 29, 2015Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Takaho Yoshida, Hisanao Akima
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Publication number: 20150235801Abstract: In aberration measurement, a focus or an inclination angle of a beam is changed to extract a characteristic amount from plural images of an electron microscope, so that an aberration coefficient indicating the size and direction of aberration is obtained. However, when the aberration is extremely large, the electron microscope images are greatly distorted, which causes difficulties in extraction of the feature amount.Type: ApplicationFiled: August 7, 2013Publication date: August 20, 2015Inventors: Hisanao Akima, Takaho Yoshida
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Patent number: 8866078Abstract: Disclosed is a scanning transmission type electron microscope provided with a scanning transmission electron microscope provided with an aberration corrector 805 for correcting the aberration of an electron-optical system that irradiates electron beams to a sample (808); a bright field image detector (813) for detecting electron beams that have transmitted through the sample; a camera (814); and an information processing apparatus (703) for processing signals detected by the detectors.Type: GrantFiled: May 16, 2011Date of Patent: October 21, 2014Assignee: Hitachi High-Technologies CorporationInventors: Hisanao Akima, Takaho Yoshida
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Publication number: 20140231666Abstract: This charged particle beam device comprises: an electron beam source (1); a charged particle optical system that includes an object lens (9) and that irradiates a sample (10) with electrons emitted from the electron beam source (1) as an electron beam (2); an aberration corrector (6) that corrects aberrations in the charged particle optical system; and a control unit (24) that controls the components of the charged particle optical system and the aberration corrector (6). The charged particle beam device further comprises an automatic aberration-correcting device (17) that autonomously acquires, through leaning, optimum adjustment procedures in order to reduce the time required for correcting parasitic aberrations that arise in the aberration corrector (6).Type: ApplicationFiled: July 9, 2012Publication date: August 21, 2014Inventors: Hisanao Akima, Yoichi Hirayama
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Publication number: 20130256531Abstract: Beam scanning for obtaining a scanned image is performed by an aberration corrector, which is an aberration measured lens, and a scanning coil disposed above an objective lens, instead of a scanning coil ordinarily placed on the objective lens. Thus, distortion with an aberration of an aberration measured lens is scanned on the surface of a sample, and then a scanned image is formed from a scattered electron beam, a transmission electron beam, or a reflected/secondary electron beam that is generated by the scan, achieving a scanning aberration information pattern equivalent to a conventional Ronchigram. Such means is a feature of the present invention.Type: ApplicationFiled: November 4, 2011Publication date: October 3, 2013Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Takaho Yoshida, Hisanao Akima
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Publication number: 20130099117Abstract: Disclosed is a scanning transmission type electron microscope provided with a scanning transmission electron microscope provided with an aberration corrector 805 for correcting the aberration of an electron-optical system that irradiates electron beams to a sample (808); a bright field image detector (813) for detecting electron beams that have transmitted through the sample; a camera (814); and an information processing apparatus (703) for processing signals detected by the detectors.Type: ApplicationFiled: May 16, 2011Publication date: April 25, 2013Inventors: Hisanao Akima, Takaho Yoshida