Patents by Inventor Motohiro Takahashi
Motohiro Takahashi 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: 20230369011Abstract: A stage device includes: a sample installation unit in which a positioning target is installed; a scale plate used to measure displacement of the sample installation unit in a vertical direction; and a lower axis table configured to support the scale plate. A free support unit is provided between the scale plate and the lower axis table.Type: ApplicationFiled: April 5, 2023Publication date: November 16, 2023Applicant: Hitachi High-Tech CorporationInventors: Motohiro TAKAHASHI, Masaki MIZUOCHI, Takanori KATO, Akira NISHIOKA
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Publication number: 20230343622Abstract: Provided is a stage apparatus including: a first table that is movable on a base; a second table that is movable in a state of floating above the first table and includes a first portion and a second portion below the first portion; a first position measuring device that measures a position of the first portion of the second table; a second position measuring device that measures a position of the second portion of the second table; and a computer that controls a motor that drives the second table. The computer drives the second table based on information on the position of the first portion measured by the first position measuring device and information on the position of the second portion measured by the second position measuring device.Type: ApplicationFiled: March 28, 2023Publication date: October 26, 2023Inventors: Takanori KATO, Masaki MIZUOCHI, Motohiro TAKAHASHI, Hironori OGAWA
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Publication number: 20230260740Abstract: A stage device is disposed in a vacuum environment and moves a target placed on the stage device, the stage device including: a guide rail that is laid on a base; a carriage that moves along the guide rail; rolling elements that come into contact with the guide rail and the carriage and rotate along with the movement of the carriage; a table that is connected to a part of the carriage and moves along with the carriage; and a blocking cover that is provided to cover a normal direction of a guide surface of the guide rail and blocks foreign matter scattered from the guide rail, the carriage, or the rolling elements.Type: ApplicationFiled: December 14, 2022Publication date: August 17, 2023Applicant: Hitachi High-Tech CorporationInventors: Motohiro TAKAHASHI, Masaki MIZUOCHI, Raifu YAMAMOTO, Yasuhiro ANDO
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Publication number: 20230215684Abstract: The present invention provides: a stage device that can suppress bending deformation of a mirror, and that can reduce the positioning error of a stage by reducing the measurement error of the position of the stage; and a charged particle beam device comprising this stage device.Type: ApplicationFiled: February 22, 2021Publication date: July 6, 2023Applicant: Hitachi High-Tech CorporationInventors: Motohiro TAKAHASHI, Masaki MIZUOCHI, Shuichi NAKAGAWA, Tomotaka SHIBAZAKI, Hironori OGAWA, Takanori KATO
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Publication number: 20230143197Abstract: A stage apparatus includes a lower stage that moves in a Y-axis direction, an upper stage that floats from the lower stage and moves at least in an X-axis direction orthogonal to the Y-axis direction, a heat exchanger that cools a Y table of the lower stage with a refrigerant, and a control device that controls an inclination of the lower stage with reference to the Y table cooled by the heat exchanger.Type: ApplicationFiled: October 11, 2022Publication date: May 11, 2023Applicant: Hitachi High-Tech CorporationInventors: Akira NISHIOKA, Motohiro TAKAHASHI, Masaki MIZUOCHI, Yasuhiro ANDO, Raifu YAMAMOTO
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Publication number: 20230137117Abstract: A charged particle beam device according to the present invention includes a first movement table and a second movement table disposed above the first movement table, measures a first relative position between a sample chamber and the first movement table, a second relative position between the sample chamber and the second movement table, and a third relative position between a lens barrel and a sample, and corrects a relative position between the first movement table and the second movement table according to the first relative position and the second relative position.Type: ApplicationFiled: October 12, 2022Publication date: May 4, 2023Inventors: Hironori OGAWA, Masaki MIZUOCHI, Motohiro TAKAHASHI, Takanori KATO
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Patent number: 11417496Abstract: The problem addressed by the present disclosure is to provide a stage device, a charged particle beam device, and a vacuum device, with which it is possible to increase the speed and the acceleration of positioning and to suppress the leakage of a magnetic field. As a means to resolve this problem, a stage device 100 comprises a support stage 10, a floating mechanism 20, and a movement stage 30. The movement stage 30 has a propulsion-applying unit 36, and the support stage 10 has a propulsion-receiving unit 11. The stage device 100 is configured so that when the movement stage 30 moves and the propulsion-applying unit 36 contacts or approaches the propulsion-receiving unit 11, the propulsion-applying unit 36 applies propulsion in the movement direction to the propulsion-receiving unit 11.Type: GrantFiled: March 1, 2019Date of Patent: August 16, 2022Assignee: Hitachi, Ltd.Inventors: Motohiro Takahashi, Takanori Kato, Naruo Watanabe, Hironori Ogawa
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Patent number: 11342156Abstract: A charged particle beam apparatus includes a sample stage on which a sample is mounted, a control device that controls to drive the sample stage, a linear scale that detects a position of the sample stage, laser position detection means for detecting the position of the sample stage, an optical microscope that observes the sample mounted on the sample stage, and a barrel that irradiates the sample mounted on the sample stage with an electron beam, and generates a secondary electron. Image data of a first correction sample mounted on the sample stage is acquired by the optical microscope, and position data of the sample stage is detected by the laser position detection means. The sample stage is positioned with respect to the barrel based on the image data acquired by the optical microscope and the position data of the sample stage detected by the laser position detection means.Type: GrantFiled: January 19, 2021Date of Patent: May 24, 2022Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Hironori Ogawa, Masaki Mizuochi, Shuichi Nakagawa, Motohiro Takahashi
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Publication number: 20220148845Abstract: In order to improve the accuracy of stage movement in a charged particle beam apparatus, this stage movement control apparatus is characterized by comprising: a storage device in which overshoot amount data in which the movement distance of a stage and the overshoot amount of the stage are associated is stored; a movement target position setting unit which sets the movement target position of the stage; a stage movement amount calculation unit which calculates a stage movement amount that is an amount by which the stage moves to the movement target position in future; an overshoot estimation unit which, on the basis of the calculated stage movement amount and the overshoot amount data, estimates an overshoot amount corresponding to the stage movement amount; a movement target position correction unit which sets a corrected movement target position obtained by correcting the movement target position closer than the movement target position by the calculated overshoot amount; and a stage movement control unit wType: ApplicationFiled: March 19, 2019Publication date: May 12, 2022Inventors: Hironori OGAWA, Shuichi NAKAGAWA, Masaki MIZUOCHI, Takanori KATO, Naruo WATANABE, Motohiro TAKAHASHI
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Patent number: 11217814Abstract: A fuel battery stack is provided with: hole portions formed in a coolant supplying manifold; cylindrical collar members provided in the hole portions; and fastening bolts inserted in the cylindrical collar members and screwed in a second end plate. On the inner circumferential surface of each of the hole portions, a plurality of projections that support the outer circumferential surface of the cylindrical collar member are provided so as to protrude radially inward.Type: GrantFiled: October 4, 2016Date of Patent: January 4, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Motohiro Takahashi, Jun Kondo, Mitsuru Ikeo, Hiromitsu Sato
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Publication number: 20210265129Abstract: A charged particle beam apparatus includes a sample stage on which a sample is mounted, a control device that controls to drive the sample stage, a linear scale that detects a position of the sample stage, laser position detection means for detecting the position of the sample stage, an optical microscope that observes the sample mounted on the sample stage, and a barrel that irradiates the sample mounted on the sample stage with an electron beam, and generates a secondary electron. Image data of a first correction sample mounted on the sample stage is acquired by the optical microscope, and position data of the sample stage is detected by the laser position detection means. The sample stage is positioned with respect to the barrel based on the image data acquired by the optical microscope and the position data of the sample stage detected by the laser position detection means.Type: ApplicationFiled: January 19, 2021Publication date: August 26, 2021Inventors: Hironori OGAWA, Masaki MIZUOCHI, Shuichi NAKAGAWA, Motohiro TAKAHASHI
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Patent number: 11049687Abstract: A stage includes a sample table on which a sample is placed, a first drive mechanism moving the sample table in a first direction; a position measurement element measuring a position in the first direction that is a driving direction of the sample table. The stage also has a scale element having a scale measurement axis that is parallel to a first measurement axis in the first direction based on the position measurement element and is different from the first measurement axis in height, and measuring the position of the sample table in the first direction. A controller calculates the orientation of the sample table by using a measurement value by the position measurement element and a measurement value by the scale element and correcting the Abbe error of the sample table.Type: GrantFiled: November 14, 2019Date of Patent: June 29, 2021Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Motohiro Takahashi, Masaki Mizuochi, Shuichi Nakagawa, Tomotaka Shibazaki, Naruo Watanabe, Hironori Ogawa, Takanori Kato, Akira Nishioka
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Publication number: 20210027978Abstract: The problem addressed by the present disclosure is to provide a stage device, a charged particle beam device, and a vacuum device, with which it is possible to increase the speed and the acceleration of positioning and to suppress the leakage of a magnetic field. As a means to resolve this problem, a stage device 100 comprises a support stage 10, a floating mechanism 20, and a movement stage 30. The movement stage 30 has a propulsion-applying unit 36, and the support stage 10 has a propulsion-receiving unit 11. The stage device 100 is configured so that when the movement stage 30 moves and the propulsion-applying unit 36 contacts or approaches the propulsion-receiving unit 11, the propulsion-applying unit 36 applies propulsion in the movement direction to the propulsion-receiving unit 11.Type: ApplicationFiled: March 1, 2019Publication date: January 28, 2021Inventors: Motohiro TAKAHASHI, Takanori KATO, Naruo WATANABE, Hironori OGAWA
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Patent number: 10879033Abstract: Provided is a stage apparatus that reduces thermal deformation and temperature rise in an upper table on which a sample is mounted and a charged particle beam apparatus including the stage apparatus. The stage apparatus includes: an upper stage that moves an upper table on which a sample is mounted in a first direction; a middle stage that moves a middle table on which the upper stage is mounted in a second direction orthogonal to the first direction; and a lower stage that moves a lower table on which the middle stage is mounted in a third direction orthogonal to the first direction and the second direction. The upper table and the middle table use a material having a smaller thermal expansion coefficient than in a material of the lower table, and the lower table uses a material having higher thermal conductivity than in the material of the upper table and the middle table.Type: GrantFiled: June 6, 2019Date of Patent: December 29, 2020Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Akira Nishioka, Masaki Mizuochi, Shuichi Nakagawa, Tomotaka Shibazaki, Hironori Ogawa, Naruo Watanabe, Motohiro Takahashi, Takanori Kato
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Patent number: 10840059Abstract: The purpose of the present invention is to provide a charged particle radiation device capable of performing appropriate vibration suppression control in accordance with a device condition. To achieve the purpose, proposed is a charged particle radiation device provided with: a sample stage for supporting a sample irradiated with a charged particle beam emitted from a charged particle source; and a vacuum chamber for placing the atmosphere in which the sample is disposed in a vacuum state.Type: GrantFiled: July 28, 2016Date of Patent: November 17, 2020Assignee: Hitachi High-Tech CorporationInventors: Kentaro Shigeoka, Takanori Kato, Kazuhiro Morita, Motohiro Takahashi, Masaki Mizuochi, Shuichi Nakagawa, Masao Saida
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Patent number: 10804067Abstract: Provided is a charged particle beam apparatus including: an XY stage on which a sample is placed; a charged particle beam source which irradiates the sample with a charged particle beam; a detector which detects charged particles emitted from the sample upon the irradiation with the charged particle beam; an image generator which generates an SEM image of the sample based on a detection signal output by the detector; and a controller configured to set control parameters based on a movement starting point and a movement ending point of the XY stage and control a driving unit for moving the XY stage according to the control parameters.Type: GrantFiled: January 7, 2019Date of Patent: October 13, 2020Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Takanori Kato, Motohiro Takahashi, Naruo Watanabe, Akira Nishioka, Masaki Mizuochi, Shuichi Nakagawa, Hironori Ogawa
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Patent number: 10770259Abstract: The present invention relates to a charged particle beam device capable of suppressing table deformation caused by movement of a rolling element of a guide with a simple configuration, and a strain isolation guide structure, a stage using the guide structure, and a charged particle beam device using the stage are proposed, the strain isolation guide structure being characterized in that, in a sample stage including a linear guide including a carriage (201), a rolling element, and a guide rail (202), and a table (105), the carriage (201) and the table (105) are connected via an adapter (401) as an elastically deformable member.Type: GrantFiled: July 12, 2017Date of Patent: September 8, 2020Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Motohiro Takahashi, Masaki Mizuochi, Shuichi Nakagawa, Hironori Ogawa, Takanori Kato
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Patent number: 10720660Abstract: A fuel cell stack includes a coolant channel provided between a first separator of a first power generation cell among power generation cells and a second separator of a second power generation cell among the power generation cells which is adjacent to the first power generation cell. A coolant manifold is connected to the coolant channel. A coolant manifold end member is connected to the coolant manifold. The coolant manifold end member includes an air vent wall having an opening provided at an uppermost position of the coolant manifold end member in a height direction of the fuel cell stack. The coolant manifold end member includes a wall which surrounds the air vent wall and which is thinner than the air vent wall. The air vent pipe protrudes from the air vent wall. The air vent pipe and the coolant manifold end member are integrally made.Type: GrantFiled: March 9, 2017Date of Patent: July 21, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Yusuke Nara, Motohiro Takahashi, Daisuke Okonogi
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Publication number: 20200176217Abstract: A stage includes a sample table on which a sample is placed, a first drive mechanism moving the sample table in a first direction; a position measurement element measuring a position in the first direction that is a driving direction of the sample table. The stage also has a scale element having a scale measurement axis that is parallel to a first measurement axis in the first direction based on the position measurement element and is different from the first measurement axis in height, and measuring the position of the sample table in the first direction. A controller calculates the orientation of the sample table by using a measurement value by the position measurement element and a measurement value by the scale element and correcting the Abbe error of the sample table.Type: ApplicationFiled: November 14, 2019Publication date: June 4, 2020Inventors: Motohiro TAKAHASHI, Masaki MIZUOCHI, Shuichi NAKAGAWA, Tomotaka SHIBAZAKI, Naruo WATANABE, Hironori OGAWA, Takanori KATO, Akira NISHIOKA
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Patent number: 10658151Abstract: To provide a lightweight and highly rigid stage device that can move in X and Y directions and a Z direction, and a charged particle beam device including the stage device. A stage device includes a chuck that is loaded with a sample, an XY stage that moves in X and Y directions, and a Z stage that moves in a Z direction. The Z stage includes: an inclined part that is fixed to the XY stage and includes an inclined surface inclined with respect to an XY plane; a movement part that moves on the inclined surface; and a table that is fixed to the movement part and is provided with the a plane parallel to the XY plane.Type: GrantFiled: January 7, 2019Date of Patent: May 19, 2020Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Motohiro Takahashi, Masaki Mizuochi, Shuichi Nakagawa, Tomotaka Shibazaki, Naruo Watanabe, Akira Nishioka, Takanori Kato, Hironori Ogawa