Patents by Inventor Yutaka Ezaki
Yutaka Ezaki 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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Patent number: 10836003Abstract: Provided is an insertion guide that performs accurate rotation correction between a shaft and a hole and phase correction between the shaft and hole. The shaft includes: a first guide portion at a distal end of the shaft having a diameter smaller than a diameter of the hole; a second guide portion, provided on a base end side of a first narrow cylindrical portion, and having a diameter smaller than the diameter of the hole and larger than a diameter of the first narrow cylindrical portion; and a third guide portion, provided at the distal end of the shaft, and is a recessed portion to be engaged with a protruding portion formed in the hole. The shaft being inclined with respect to the hole, is brought into contact with the hole at two points or less before the third guide portion is brought into contact with the protruding portion.Type: GrantFiled: December 19, 2016Date of Patent: November 17, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaki Haruna, Kazuhiko Fukushima, Ieyoung Kim, Satoru Sofuku, Toshitaka Nakaoji, Yasushi Horiuchi, Yusuke Saruta, Junji Takaki, Noboru Kawaguchi, Yutaka Ezaki
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Patent number: 10744651Abstract: A mirror replacement device includes a gripping mechanism to grip a segment mirror, a fine drive mechanism to change a position and a posture of the gripping mechanism, a lift mechanism for the segment mirror, a first detector to detect a relative position and a relative posture between a comparison object and a target object, a second detector to detect a bend of the fine drive mechanism, and a mirror replacement controller to replace the segment mirror based on detection signals output from the above-mentioned detectors. The controller determines whether the first detector can successfully perform a measurement. When it is determined that the measurement can be successfully performed, the control is performed based on the detection signal output from the first detector. When it is determined that the measurement cannot be successfully performed, the control is performed based on the detection signal output from the second detector.Type: GrantFiled: February 15, 2016Date of Patent: August 18, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaki Haruna, Kazuhiko Fukushima, Ieyoung Kim, Satoru Sofuku, Toshitaka Nakaoji, Yasushi Horiuchi, Yusuke Saruta, Junji Takaki, Noboru Kawaguchi, Yutaka Ezaki
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Patent number: 10544832Abstract: A preload guide system guides, in a horizontal plane, movement of a rotation structure having journals rotating around a rotation axis having a horizontal rotation shaft. At right-side surfaces of the journals, guide bearing components press predetermined positions on the same side with respect to an axial-direction reference plane and rotatably support the journals. At left-side surfaces of the journals, guide bearing components press positions corresponding to the guide bearing components at the right side surfaces, and rotatably support the journals. The support systems adjust displacement amounts of the guide bearing components such that a sum of the displacement amounts becomes zero.Type: GrantFiled: October 1, 2018Date of Patent: January 28, 2020Assignee: Mitsubishi Electric CorporationInventors: Masaki Hirano, Noboru Kawaguchi, Junji Takaki, Yutaka Ezaki, Makoto Endo
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Publication number: 20190107151Abstract: A preload guide system guides, in a horizontal plane, movement of a rotation structure having journals rotating around a rotation axis having a horizontal rotation shaft. At right-side surfaces of the journals, guide bearing components press predetermined positions on the same side with respect to an axial-direction reference plane and rotatably support the journals. At left-side surfaces of the journals, guide bearing components press positions corresponding to the guide bearing components at the right side surfaces, and rotatably support the journals. The support systems adjust displacement amounts of the guide bearing components such that a sum of the displacement amounts becomes zero.Type: ApplicationFiled: October 1, 2018Publication date: April 11, 2019Applicant: Mitsubishi Electric CorporationInventors: Masaki Hirano, Noboru Kawaguchi, Junji Takaki, Yutaka Ezaki, Makoto Endo
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Patent number: 10210628Abstract: A storage device stores capturing conditions including a viewpoint position and a shooting direction of the camera, model data including a shape of a segmented mirror, and feature point data representing a positional relationship among a viewpoint position and feature points. A camera captures the segmented mirror having a reflective surface to obtain a captured image including at least a part of the reflective surface. A marker object has feature points, and is fixed at a predetermined position with respect to the camera. A feature-point extracting unit extracts multiple feature points from a captured image in which the feature points are reflected in the reflective surface, and determines positions of the feature points within the captured image. A position measuring unit calculates a position of the segmented mirror, based on the capturing conditions, the model data, the feature point data, and the positions of the feature points within the captured image.Type: GrantFiled: July 31, 2014Date of Patent: February 19, 2019Assignee: Mitsubishi Electric CorporationInventors: Yukiyasu Domae, Makito Seki, Shintaro Watanabe, Satoru Sofuku, Yutaka Ezaki
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Publication number: 20190047096Abstract: Provided is an insertion guide that performs accurate rotation correction between a shaft and a hole and phase correction between the shaft and hole. The shaft includes: a first guide portion at a distal end of the shaft having a diameter smaller than a diameter of the hole; a second guide portion, provided on a base end side of a first narrow cylindrical portion, and having a diameter smaller than the diameter of the hole and larger than a diameter of the first narrow cylindrical portion; and a third guide portion, provided at the distal end of the shaft, and is a recessed portion to be engaged with a protruding portion formed in the hole. The shaft being inclined with respect to the hole, is brought into contact with the hole at two points or less before the third guide portion is brought into contact with the protruding portion.Type: ApplicationFiled: December 19, 2016Publication date: February 14, 2019Applicant: Mitsubishi Electric CorporationInventors: Masaki HARUNA, Kazuhiko FUKUSHIMA, Ieyoung KIM, Satoru SOFUKU, Toshitaka NAKAOJI, Yasushi HORIUCHI, Yusuke SARUTA, Junji TAKAKI, Noboru KAWAGUCHI, Yutaka EZAKI
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Publication number: 20180297213Abstract: A mirror replacement device includes a gripping mechanism to grip a segment mirror, a fine drive mechanism to change a position and a posture of the gripping mechanism, a lift mechanism for the segment mirror, a first detector to detect a relative position and a relative posture between a comparison object and a target object, a second detector to detect a bend of the fine drive mechanism, and a mirror replacement controller to replace the segment mirror based on detection signals output from the above-mentioned detectors. The controller determines whether the first detector can successfully perform a measurement. When it is determined that the measurement can be successfully performed, the control is performed based on the detection signal output from the first detector. When it is determined that the measurement cannot be successfully performed, the control is performed based on the detection signal output from the second detector.Type: ApplicationFiled: February 15, 2016Publication date: October 18, 2018Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaki HARUNA, Kazuhiko FUKUSHIMA, Ieyoung KIM, Satoru SOFUKU, Toshitaka NAKAOJI, Yasushi HORIUCHI, Yusuke SARUTA, Junji TAKAKI, Noboru KAWAGUCHI, Yutaka EZAKI
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Patent number: 9946615Abstract: A management apparatus includes a processor to collect resource usage quantities of one or more first site processes executed on an information processing apparatus of a first site, and the resource usage quantities of one or more second site processes executed on an information processing apparatus of a second site to which the processes of the first site are migrated, and to define, as resource control information, at least one of stopping any one or more of the second site processes and reducing resources allocated to any one or more of the second site processes corresponding to variations of the resource usage quantities of the first site processes and the second site processes, the resource usage quantities being collected by the processor.Type: GrantFiled: January 29, 2016Date of Patent: April 17, 2018Assignee: FUJITSU LIMITEDInventors: Katsuo Iimura, Kenichirou Shimogawa, Takahiro Kojima, Yutaka Ezaki, Ingyn Tara
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Publication number: 20170221224Abstract: A storage device stores capturing conditions containing a viewpoint position and a shooting direction of the camera, model data containing a shape of a segmented mirror, and feature point data representing a positional relationship among a viewpoint position and feature points. A camera captures the segmented mirror having a reflective surface to obtain a captured image containing at least a part of the reflective surface. A marker object has feature points, and is fixed at a predetermined position with respect to the camera. A feature-point extracting unit extracts multiple feature points from a captured image when the feature points are reflected in the reflective surface, and determines positions of the feature points within the captured image. A position measuring unit calculates a position of the segmented mirror, based on the capturing conditions, the model data, the feature point data, and the positions of the feature points within the captured image.Type: ApplicationFiled: July 31, 2014Publication date: August 3, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yukiyasu DOMAE, Makito SEKI, Shintaro WATANABE, Satoru SOFUKU, Yutaka EZAKI
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Publication number: 20160261719Abstract: An information processing system includes a communication control device that receives an input of first process communication from a first information processing device and controls internal and external communication with a second information processing device, and a responding device that can communicate with the communication control device, wherein upon receiving the first process communication, the communication control device transmits the received first process communication to the second information processing device, and upon receiving second process communication, which is a response to the first process communication transmitted from the second information processing device to the first information processing device, the communication control device transmits the second process communication to the responding device by changing a destination of the second process communication from the first information processing device to the responding device.Type: ApplicationFiled: February 25, 2016Publication date: September 8, 2016Applicant: FUJITSU LIMITEDInventors: Yutaka Ezaki, Katsuo Iimura, KENICHIROU SHIMOGAWA, Takahiro Kojima
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Publication number: 20160241450Abstract: A management apparatus includes a processor to collect resource usage quantities of one or more first site processes executed on an information processing apparatus of a first site, and the resource usage quantities of one or more second site processes executed on an information processing apparatus of a second site to which the processes of the first site are migrated, and to define, as resource control information, at least one of stopping any one or more of the second site processes and reducing resources allocated to any one or more of the second site processes corresponding to variations of the resource usage quantities of the first site processes and the second site processes, the resource usage quantities being collected by the processor.Type: ApplicationFiled: January 29, 2016Publication date: August 18, 2016Applicant: FUJITSU LIMITEDInventors: Katsuo IIMURA, Kenichirou SHIMOGAWA, Takahiro KOJIMA, Yutaka EZAKI, JR., Ingyn TARA
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Patent number: 9389101Abstract: A readhead control mechanism serves to control a readhead included in an optical encoder that measures a mechanical displacement between a fixed portion and a movable portion by reading out a gradation mark on a scale provided on the fixed portion, by using the readhead that is provided on the movable portion. The readhead mechanism includes a securing member that secures the readhead onto the movable portion, an actuator that is directly or indirectly secured onto the readhead to shift the readhead in an approaching direction or in a distancing direction, and an actuator controller that controls the actuator to maintain a constant distance between the readhead and the scale.Type: GrantFiled: March 20, 2013Date of Patent: July 12, 2016Assignee: Mitsubishi Electric CorporationInventors: Yutaka Ezaki, Noboru Itoh
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Patent number: 8661238Abstract: To activate respective OSs separately through a network even in a virtual machine in which a plurality of OSs are installed, an M-packet acquiring unit acquires a received magic packet. An address detecting unit detects a MAC address that is stored in the magic packet. A control-list storage unit records correspondence between MAC addresses and guest OSs, and defines whether to activate the respective OSs by a remote operation. An activation determining unit refers to the control-list storage unit and determines whether to activate a guest OS that corresponds to the MAC address stored in the magic packet. A guest-OS control unit activates a guest OS that is determined to be activated by the activation determining unit.Type: GrantFiled: August 26, 2009Date of Patent: February 25, 2014Assignee: Fujitsu LimitedInventors: Yutaka Ezaki, Masanobu Yuhara
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Publication number: 20130248698Abstract: A readhead control mechanism serves to control a readhead included in an optical encoder that measures a mechanical displacement between a fixed portion and a movable portion by reading out a gradation mark on a scale provided on the fixed portion, by using the readhead that is provided on the movable portion. The readhead mechanism includes a securing member that secures the readhead onto the movable portion, an actuator that is directly or indirectly secured onto the readhead to shift the readhead in an approaching direction or in a distancing direction, and an actuator controller that controls the actuator to maintain a constant distance between the readhead and the scale.Type: ApplicationFiled: March 20, 2013Publication date: September 26, 2013Inventors: Yutaka Ezaki, Noboru Itoh
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Patent number: 8443055Abstract: A device control service providing system includes a service request receiving unit that receives, via a network, a device control service request for controlling a group of electronic devices, and a process execution requesting unit that requests respective device control servers to execute device control processes for controlling an operation of the electronic devices in the group based on the request received, where one of the device control servers executes the device control processes corresponding to one group of the electronic devices.Type: GrantFiled: June 23, 2005Date of Patent: May 14, 2013Assignee: Fujitsu LimitedInventors: Yuji Imai, Satoshi Tsuchiya, Yutaka Ezaki
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Patent number: 7768699Abstract: A phase difference detecting device includes a splitter for splitting laser beams into a first group which will travel along a first path and a second group which will travel along a second path, a beam selection/extraction unit for selecting, as reference light, one beam from the first group to allow it to pass therethrough, a path length changing unit for changing the length of the first path, a combining unit for combining the reference light and beams which construct the second group to produce interference light, and a detector for detecting the intensity of the interference light. The device changes the length of the first path using the path length changing unit to detect a path length which maximizes the intensity of the interference light for each of the beams which construct the second group, and determines a phase difference among the beams from the detected path length.Type: GrantFiled: August 20, 2004Date of Patent: August 3, 2010Assignee: Mitsubishi Electric CorporationInventors: Jiro Suzuki, Yoshihito Hirano, Yutaka Ezaki, Yasushi Horiuchi, Masaki Tabata, Kouji Namura, Izumi Mikami
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Publication number: 20090319768Abstract: To activate respective OSs separately through a network even in a virtual machine in which a plurality of OSs are installed, an M-packet acquiring unit acquires a received magic packet. An address detecting unit detects a MAC address that is stored in the magic packet. A control-list storage unit records correspondence between MAC addresses and guest OSs, and defines whether to activate the respective OSs by a remote operation. An activation determining unit refers to the control-list storage unit and determines whether to activate a guest OS that corresponds to the MAC address stored in the magic packet. A guest-OS control unit activates a guest OS that is determined to be activated by the activation determining unit.Type: ApplicationFiled: August 26, 2009Publication date: December 24, 2009Applicant: FUJITSU LIMITEDInventors: Yutaka Ezaki, Masanobu Yuhara
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Publication number: 20080304139Abstract: A phase difference detecting device includes a splitter for splitting laser beams into a first group which will travel along a first path and a second group which will travel along a second path, a beam selection/extraction unit for selecting, as reference light, one beam from the first group to allow it to pass therethrough, a path length changing unit for changing the length of the first path, a combining unit for combining the reference light and beams which construct the second group to produce interference light, and a detector for detecting the intensity of the interference light. The device changes the length of the first path using the path length changing unit to detect a path length which maximizes the intensity of the interference light for each of the beams which construct the second group, and determines a phase difference among the beams from the detected path length.Type: ApplicationFiled: August 20, 2004Publication date: December 11, 2008Inventors: Jiro Suzuki, Yoshihito Hirano, Yutaka Ezaki, Yasushi Horiuchi, Masaki Tabata, Kouji Namura, Izumi Mikami
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Patent number: 7440478Abstract: Provided are a small-sized, low-cost, and easy-to-use laser optical path length difference detecting device, a laser optical path length difference detecting device, and a coherent optical coupling device. The laser optical path length difference detecting device detects an optical path length difference between propagation paths of a first laser beam (1) and a second laser beam (2), which are mutually coherent when the beams are propagated through two arbitrary optical paths of a plurality of laser beam optical paths.Type: GrantFiled: September 13, 2004Date of Patent: October 21, 2008Assignee: Mitsubishi Electric CorporationInventors: Jiro Suzuki, Yoshihito Hirano, Yutaka Ezaki, Yasushi Horiuchi
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Publication number: 20080123105Abstract: A grating alignment device performs alignment of two or more plane gratings so as to eliminate an angular misalignment and a phase misalignment which are caused between respective diffracted light beams generated when incident light is diffracted by the plane gratings. Specifically, alignment is performed by appropriately adjusting an angle A, an angle B, an angle C, a coordinate Z, and a coordinate X of the second plane grating so as to eliminate at least one of the angular misalignment and the phase misalignment which are caused between the respective diffracted light beams generated when incident light is diffracted by the first plane grating and the second plane grating.Type: ApplicationFiled: January 17, 2005Publication date: May 29, 2008Inventors: Kouji Seki, Jiro Suzuki, Yoshihito Hirano, Yutaka Ezaki, Yasushi Horiuchi, Masaki Tabata, Kouji Namura, Izumi Mikami