Patents by Inventor Masashi Moriguchi
Masashi Moriguchi 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: 11235481Abstract: An oscillatory linear actuator includes: an output movable element which is reciprocated by a periodically varying magnetic field and performs work on an object; and a vibration absorbing movable element which is reciprocated at a phase opposite to a phase of the output movable element and reduces vibration of the oscillatory linear actuator. The vibration absorbing movable element is lighter in weight than the output movable element.Type: GrantFiled: April 11, 2018Date of Patent: February 1, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tomoaki Murakami, Noboru Kobayashi, Hiroki Inoue, Masashi Moriguchi
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Patent number: 11052553Abstract: An oscillatory linear actuator includes an electromagnet that changes a magnetic field periodically, a first movable body, a second movable body, a holder, and a coupling spring. The first movable body is disposed on one side in the first direction of the electromagnet, includes a permanent magnet, and acts on a target object. The permanent magnet reciprocates in a second direction intersecting with the first direction by the electromagnet. The second movable body is juxtaposed to the first movable body and reciprocates in the second direction. The holder holds the first and second movable bodies to provide space between the first and second movable bodies and the electromagnet and to allow the first and second movable bodies to move in the second direction. The coupling spring is disposed on one side in the first direction of the holder and couples the first movable body and the second movable body.Type: GrantFiled: April 13, 2018Date of Patent: July 6, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tomoaki Murakami, Noboru Kobayashi, Hiroki Inoue, Masashi Moriguchi
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Patent number: 10688673Abstract: An oscillatory linear actuator includes an electromagnetic core block including an electromagnet (electromagnetic part), and a magnetic block that holds permanent magnets so that the permanent magnets face the electromagnet with a predetermined space in between. The electromagnetic core block integrally includes a core, a coil bobbin, and a base, the core and the coil bobbin forming the electromagnet, and the base holding the core and the coil bobbin. The magnetic block includes the permanent magnets and a frame that holds the permanent magnets so as to allow the permanent magnets to oscillate freely and holds the electromagnetic core block. The frame has a guide portion that guides the electromagnetic core block to adjust a positional relation of the permanent magnets and the electromagnet, and the base is fixed to the frame inside the guide portion.Type: GrantFiled: April 9, 2018Date of Patent: June 23, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tomoaki Murakami, Noboru Kobayashi, Hiroki Inoue, Masashi Moriguchi
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Patent number: 10538003Abstract: An oscillatory linear actuator includes: an output movable element which is reciprocated by a periodically varying magnetic field and performs work on an object; and a vibration absorbing movable element which is reciprocated at a phase opposite to a phase of the output movable element and reduces vibration of the oscillatory linear actuator. The output movable element includes: a first driver which generates a thrust force which is reciprocated by a magnetic field; a work part which performs work on the object at a predetermined distance away from the first driver; a shaft which connects the work part and the first driver; a first weight opposite to the work part relative to the first driver; and a weight support which connects the work part and the first weight.Type: GrantFiled: April 9, 2018Date of Patent: January 21, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tomoaki Murakami, Noboru Kobayashi, Hiroki Inoue, Masashi Moriguchi
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Patent number: 10202980Abstract: There is provided a centrifugal compressor apparatus including a centrifugal compressor that centrifugally compresses a gas, an electric motor that rotatably drives the centrifugal compressor, a current detector that detects a drive current I of the electric motor, and an exhaust valve that discharges a compressed gas to a lower pressure section. The centrifugal compressor apparatus (A) detects the drive current I at a sampling cycle ts, (B) updates, as a current threshold, in real time, a value “(moving average)?n×(standard deviation)” for which a plurality of drive currents measured in a sampling period tp serves as a population, where n is a positive number in the range of 3 to 4 and, (C) determines that surging has occurred when the exhaust valve is closed and the drive current I is below the current threshold X, and (D) further opens the exhaust valve to discharge the compressed gas when determining that surging has occurred.Type: GrantFiled: April 3, 2014Date of Patent: February 12, 2019Assignee: IHI Rotating Machinery Engineering Co., Ltd.Inventors: Tsuneo Koki, Naoki Nishiyama, Yuji Echizen, Takashi Oyabu, Tomonori Seki, Masashi Moriguchi
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Publication number: 20180304481Abstract: An oscillatory linear actuator includes: an output movable element which is reciprocated by a periodically varying magnetic field and performs work on an object; and a vibration absorbing movable element which is reciprocated at a phase opposite to a phase of the output movable element and reduces vibration of the oscillatory linear actuator. The vibration absorbing movable element is lighter in weight than the output movable element.Type: ApplicationFiled: April 11, 2018Publication date: October 25, 2018Inventors: Tomoaki MURAKAMI, Noboru KOBAYASHI, Hiroki INOUE, Masashi MORIGUCHI
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Publication number: 20180304482Abstract: An oscillatory linear actuator includes an electromagnet that changes a magnetic field periodically, a first movable body, a second movable body, a holder, and a coupling spring. The first movable body is disposed on one side in the first direction of the electromagnet, includes a permanent magnet, and acts on a target object. The permanent magnet reciprocates in a second direction intersecting with the first direction by the electromagnet. The second movable body is juxtaposed to the first movable body and reciprocates in the second direction. The holder holds the first and second movable bodies to provide space between the first and second movable bodies and the electromagnet and to allow the first and second movable bodies to move in the second direction. The coupling spring is disposed on one side in the first direction of the holder and couples the first movable body and the second movable body.Type: ApplicationFiled: April 13, 2018Publication date: October 25, 2018Inventors: Tomoaki MURAKAMI, Noboru KOBAYASHI, Hiroki INOUE, Masashi MORIGUCHI
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Publication number: 20180304480Abstract: An oscillatory linear actuator includes an electromagnetic core block including an electromagnet (electromagnetic part), and a magnetic block that holds permanent magnets so that the permanent magnets face the electromagnet with a predetermined space in between. The electromagnetic core block integrally includes a core, a coil bobbin, and a base, the core and the coil bobbin forming the electromagnet, and the base holding the core and the coil bobbin. The magnetic block includes the permanent magnets and a frame that holds the permanent magnets so as to allow the permanent magnets to oscillate freely and holds the electromagnetic core block. The frame has a guide portion that guides the electromagnetic core block to adjust a positional relation of the permanent magnets and the electromagnet, and the base is fixed to the frame inside the guide portion.Type: ApplicationFiled: April 9, 2018Publication date: October 25, 2018Inventors: Tomoaki MURAKAMI, Noboru KOBAYASHI, Hiroki INOUE, Masashi MORIGUCHI
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Publication number: 20180304479Abstract: An oscillatory linear actuator includes: an output movable element which is reciprocated by a periodically varying magnetic field and performs work on an object; and a vibration absorbing movable element which is reciprocated at a phase opposite to a phase of the output movable element and reduces vibration of the oscillatory linear actuator. The output movable element includes: a first driver which generates a thrust force which is reciprocated by a magnetic field; a work part which performs work on the object at a predetermined distance away from the first driver; a shaft which connects the work part and the first driver; a first weight opposite to the work part relative to the first driver; and a weight support which connects the work part and the first weight.Type: ApplicationFiled: April 9, 2018Publication date: October 25, 2018Inventors: Tomoaki MURAKAMI, Noboru KOBAYASHI, Hiroki INOUE, Masashi MORIGUCHI
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Patent number: 9895210Abstract: An electric linear actuator includes a fixed block, an output movable block, a counter movable block, a projecting side coupling member, a retracting side coupling member, a block coupling member, and an output functional member. The output movable block and the counter movable block are configured to be reciprocated in the movable direction in opposite phases by electromagnetic force acting between the fixed block and the output and counter movable blocks. The projecting side coupling member is coupled to the output movable block and the counter movable block. The retracting side coupling member is coupled to the output movable block and the counter movable block. The projecting side coupling member and the retracting side coupling member have different shapes.Type: GrantFiled: December 12, 2013Date of Patent: February 20, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Noboru Kobayashi, Masashi Moriguchi
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Publication number: 20160000543Abstract: An electric linear actuator includes a fixed block, an output movable block, a counter movable block, a projecting side coupling member, a retracting side coupling member, a block coupling member, and an output functional member. The output movable block and the counter movable block are configured to be reciprocated in the movable direction in opposite phases by electromagnetic force acting between the fixed block and the output and counter movable blocks. The projecting side coupling member is coupled to the output movable block and the counter movable block. The retracting side coupling member is coupled to the output movable block and the counter movable block. The projecting side coupling member and the retracting side coupling member have different shapes.Type: ApplicationFiled: December 12, 2013Publication date: January 7, 2016Inventors: Noboru KOBAYASHI, Masashi MORIGUCHI
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Publication number: 20140219820Abstract: There is provided a centrifugal compressor apparatus including a centrifugal compressor that centrifugally compresses a gas, an electric motor that rotatably drives the centrifugal compressor, a current detector that detects a drive current I of the electric motor, and an exhaust valve that discharges a compressed gas to a lower pressure section. The centrifugal compressor apparatus (A) detects the drive current I at a sampling cycle ts, (B) updates, as a current threshold, in real time, a value “(moving average)?n×(standard deviation)” for which a plurality of drive currents measured in a sampling period tp serves as a population, where n is a positive number in the range of 3 to 4 and, (C) determines that surging has occurred when the exhaust valve is closed and the drive current I is below the current threshold X, and (D) further opens the exhaust valve to discharge the compressed gas when determining that surging has occurred.Type: ApplicationFiled: April 3, 2014Publication date: August 7, 2014Applicant: IHI CorporationInventors: Tsuneo KOKI, Naoki NISHIYAMA, Yuji ECHIZEN, Takashi OYABU, Tomonori SEKI, Masashi MORIGUCHI
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Patent number: 7965000Abstract: A vibratory linear actuator includes a stator with a magnetic pole surface, a movable member with a magnetic pole surface, an electromagnet arranged in one of the stator and the movable member, a permanent magnet arranged in the other of the stator and the movable member and a support unit for movably supporting the movable member so that the magnetic pole surface of the electromagnet can oppose the magnetic pole surface with a gap left therebetween. The actuator is designed to vibrate the movable member by supplying an electric current to the electromagnet. The support unit includes a fixed portion to be fixed to a housing for accommodating the actuator, and the stator is configured to be fixed to the support unit as the support unit is fixed to the housing.Type: GrantFiled: April 20, 2009Date of Patent: June 21, 2011Assignee: Panasonic Electric Works Co., Ltd.Inventors: Shunsuke Komori, Masashi Moriguchi
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Patent number: 7812483Abstract: A vibratory linear actuator includes a stator with a magnetic pole surface, a movable member with a magnetic pole surface, an electromagnet arranged in one of the stator and the movable member, a permanent magnet arranged in the other of the stator and the movable member and a support unit for movably supporting the movable member so that the magnetic pole surface of the electromagnet can oppose the magnetic pole surface with a gap left therebetween. The actuator is designed to vibrate the movable member by supplying an electric current to the electromagnet. The support unit includes a fixed portion to be fixed to a housing for accommodating the actuator, and the stator is configured to be fixed to the support unit as the support unit is fixed to the housing.Type: GrantFiled: April 20, 2009Date of Patent: October 12, 2010Assignee: Panasonic Electric Works Co., Ltd.Inventors: Shunsuke Komori, Masashi Moriguchi
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Publication number: 20090267422Abstract: A vibratory linear actuator includes a stator with a magnetic pole surface, a movable member with a magnetic pole surface, an electromagnet arranged in one of the stator and the movable member, a permanent magnet arranged in the other of the stator and the movable member and a support unit for movably supporting the movable member so that the magnetic pole surface of the electromagnet can oppose the magnetic pole surface with a gap left therebetween. The actuator is designed to vibrate the movable member by supplying an electric current to the electromagnet. The support unit includes a fixed portion to be fixed to a housing for accommodating the actuator, and the stator is configured to be fixed to the support unit as the support unit is fixed to the housing.Type: ApplicationFiled: April 20, 2009Publication date: October 29, 2009Applicant: Panasonic Electric Works Co., Ltd.Inventors: Shunsuke Komori, Masashi Moriguchi
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Patent number: 7053507Abstract: A linear oscillating actuator system which is capable of canceling out the stator vibrations for driving a load with a minimum of vibrations. The system includes an oscillator carrying a permanent magnet as well as an output shaft for connection to the load. A stator assembly is incorporated within a housing and is configured to movably support the oscillator and to carry an electromagnet. The electromagnet generates a magnetic field which interacts with the permanent magnet to reciprocate the oscillator relative to the stator assembly in a linear path. A balancer is added to the system for canceling out undesired stator vibrations. The balancer are commonly supported to the stator assembly to be driven thereby in parallel with the oscillator. The balancer is configured to have a mass generally equal to that of the oscillator and to be devoid of any output member.Type: GrantFiled: December 17, 2004Date of Patent: May 30, 2006Assignee: Matsushita Electric Works, Ltd.Inventors: Noboru Kobayashi, Masashi Moriguchi, Takahiro Nishinaka, Hidekazu Yabuuchi, Ryo Motohashi
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Patent number: 6991217Abstract: In an oscillation type linear actuator for reciprocally moving a plurality of moving members held in parallel with each other in a predetermined direction owing to electromagnetic action between a stator and them, two moving members reciprocally moving in opposite phases with each other are coupled by a coupling member having spring function, and a non-displacing portion of a plate spring portion of the coupling member which is not displaced substantially is restricted by a stopper. Even when an external force is applied to one of two moving members reciprocally moving in the opposite phases each other, motion of the other moving member is transmitted to the moving member via the coupling member, so that reduction of amplitude of the moving member to which the external force is applied can be restricted, and a balance of amplitudes of two moving members is maintained.Type: GrantFiled: June 17, 2003Date of Patent: January 31, 2006Assignee: Matsushita Electric Works, Ltd.Inventors: Hiroaki Shimizu, Hidekazu Yabuuchi, Masashi Moriguchi, Noboru Kobayashi, Ryo Motohashi, Ryuji Otani
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Patent number: 6946756Abstract: An oscillatory linear actuator including a plurality of movable elements configured to move in a linear direction, a stationary component configured to drive the plurality of movable elements to move in the linear direction, and a plurality of connecting devices elastically connecting the plurality of movable elements with each other and positioned on at least one end portion of the plurality of movable elements in the linear direction, each of the plurality of connecting devices being extending away from the plurality of movable elements in opposite directions.Type: GrantFiled: June 17, 2003Date of Patent: September 20, 2005Assignee: Matsushita Electric Works, Ltd.Inventors: Hiroaki Shimizu, Hidekazu Yabuuchi, Masashi Moriguchi, Noboru Kobayashi, Ryo Motohashi, Ryuji Otani
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Publication number: 20050173662Abstract: In an oscillation type linear actuator for reciprocally moving a plurality of moving members held in parallel with each other in a predetermined direction owing to electromagnetic action between a stator and them, two moving members reciprocally moving in opposite phases with each other are coupled by a coupling member having spring function, and a non-displacing portion of a plate spring portion of the coupling member which is not displaced substantially is restricted by a stopper. Even when an external force is applied to one of two moving members reciprocally moving in the opposite phases each other, motion of the other moving member is transmitted to the moving member via the coupling member, so that reduction of amplitude of the moving member to which the external force is applied can be restricted, and a balance of amplitudes of two moving members is maintained.Type: ApplicationFiled: June 17, 2003Publication date: August 11, 2005Inventors: Hiroaki Shimizu, Hidekazu Yabuuchi, Masashi Moriguchi, Noboru Kobayashi, Ryo Motohashi, Ryuji Otani
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Publication number: 20050134123Abstract: A linear oscillating actuator system which is capable of canceling out the stator vibrations for driving a load with a minimum of vibrations. The system includes an oscillator carrying a permanent magnet as well as an output shaft for connection to the load. A stator assembly is incorporated within a housing and is configured to movably support the oscillator and to carry an electromagnet. The electromagnet generates a magnetic field which interacts with the permanent magnet to reciprocate the oscillator relative to the stator assembly in a linear path. A balancer is added to the system for canceling out undesired stator vibrations. The balancer are commonly supported to the stator assembly to be driven thereby in parallel with the oscillator. The balancer is configured to have a mass generally equal to that of the oscillator and to be devoid of any output member.Type: ApplicationFiled: December 17, 2004Publication date: June 23, 2005Inventors: Noboru Kobayashi, Masashi Moriguchi, Takahiro Nishinaka, Hidekazu Yabuuchi, Ryo Motohashi