Patents by Inventor Takashi Onoue
Takashi Onoue 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: 9882460Abstract: The linear actuator includes an inner core (2), and an outer core (3) provided outside the inner core in a radial direction while being supported by a pair of flat springs (41 and 42). Permanent magnets (23 and 24) are formed at one of the inner core and the outer core, and magnetic pole portions (31a and 32a) are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers (71 and 72) are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and at least an engagement portion including a recess and a protrusion are arranged at the abutting portions.Type: GrantFiled: March 20, 2017Date of Patent: January 30, 2018Assignee: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Yasuhiro Sakai, Takashi Onoue
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Publication number: 20170194850Abstract: The linear actuator includes an inner core (2), and an outer core (3) provided outside the inner core in a radial direction while being supported by a pair of flat springs (41 and 42). Permanent magnets (23 and 24) are formed at one of the inner core and the outer core, and magnetic pole portions (31a and 32a) are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers (71 and 72) are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and at least an engagement portion including a recess and a protrusion are arranged at the abutting portions.Type: ApplicationFiled: March 20, 2017Publication date: July 6, 2017Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Yasuhiro Sakai, Takashi Onoue
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Patent number: 9647524Abstract: A linear actuator includes an inner core, and an outer core that is provided outside the inner core in a radial direction while being supported by a pair of flat springs. Permanent magnets are formed at one of the inner core and the outer core, and magnetic pole portions are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and a plurality of engagement portions including recesses and protrusions are arranged at the abutting portions.Type: GrantFiled: April 2, 2012Date of Patent: May 9, 2017Assignee: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Yasuhiro Sakai, Takashi Onoue
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Patent number: 8892338Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: GrantFiled: April 10, 2012Date of Patent: November 18, 2014Assignee: Shinko Electric Co., Ltd.Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
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Patent number: 8818625Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: GrantFiled: April 10, 2012Date of Patent: August 26, 2014Assignee: Shinko Electric Co., Ltd.Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
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Publication number: 20140091645Abstract: A linear actuator includes an inner core, and an outer core that is provided outside the inner core in a radial direction while being supported by a pair of flat springs. Permanent magnets are formed at one of the inner core and the outer core, and magnetic pole portions are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and a plurality of engagement portions including recesses and protrusions are arranged at the abutting portions.Type: ApplicationFiled: April 2, 2012Publication date: April 3, 2014Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Yasuhiro Sakai, Takashi Onoue
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Patent number: 8643230Abstract: A linear actuator includes a linear actuator body (2), a casing (3) for housing the linear actuator body (2), and insulating oil (L) that fills the casing (3) with a coil (44) of the linear actuator body (2) submerged therein. In such a configuration, heat generated by the coil (44) is quickly released to the oil (L) and is then conducted to the casing (3). The oil (L) fully spreads into gaps in the coil (44), of course. Therefore, heat is released very efficiently. Thus, by improving the heat-releasing characteristic, a linear actuator having a reduced size and a reduced weight is provided.Type: GrantFiled: November 14, 2011Date of Patent: February 4, 2014Assignee: Sinfonia Technology Co., Ltd.Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Takashi Onoue
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Patent number: 8626386Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: GrantFiled: April 10, 2012Date of Patent: January 7, 2014Assignee: Shinko Electric Co., Ltd.Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
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Patent number: 8504239Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: GrantFiled: April 10, 2012Date of Patent: August 6, 2013Assignee: Shinko Electric Co., Ltd.Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
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Patent number: 8401735Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: GrantFiled: April 27, 2007Date of Patent: March 19, 2013Assignee: Shinko Electric Co., Ltd.Inventors: Yaushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
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Patent number: 8381579Abstract: The present invention provides a vibration damping device which can enhance a vibration damping effect even in a case where a vibration damping target position and a vibration damping force generation position are different from each other.Type: GrantFiled: May 13, 2009Date of Patent: February 26, 2013Assignee: Sinfonia Technology Co., Ltd.Inventors: Yushi Sato, Hideaki Moriya, Takeo Ito, Takayoshi Fujii, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Hidetoshi Katada, Takeshi Tomizaki, Takashi Onoue, Yasushi Muragishi
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Publication number: 20120222929Abstract: An automobile vibration damping device for an automobile in which a power plant in which an engine, a transmission and the like are combined is supported by a vehicle body, including a vibrating means that generates vibration separate from vibration of the engine. Thereby, it is possible to reduce the vibration amplitude of a seat portion by the reaction force of the vibrating means. Also, if the vibration mode of the vehicle body is adjusted so as to become a node in the vicinity of the seat portion, the vibration amplitude decreases in the vicinity of the seat portion, and improves riding comfort.Type: ApplicationFiled: May 11, 2012Publication date: September 6, 2012Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Yasushi MURAGISHI, Takayoshi FUJII, Takashi FUKUNAGA, Hideaki MORIYA, Katsuyoshi NAKANO, Hiroshi NAKAGAWA, Takashi ONOUE, Yushi SATO
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Publication number: 20120217108Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: ApplicationFiled: April 10, 2012Publication date: August 30, 2012Applicant: c/o SINFONIA TECHNOLOGY CO., LTD.Inventors: Yasushi MURAGISHI, Hideaki MORIYA, Yushi SATO, Takashi FUKUNAGA, Katsuyoshi NAKANO, Hiroshi NAKAGAWA, Takayoshi FUJII, Takashi ONOUE, Masaaki NARIHISA
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Publication number: 20120193847Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: ApplicationFiled: April 10, 2012Publication date: August 2, 2012Applicant: SHINKO ELECTRIC CO., LTD.Inventors: Yasushi MURAGISHI, Hideaki MORIYA, Yushi SATO, Takashi FUKUNAGA, Katsuyoshi NAKANO, Hiroshi NAKAGAWA, Takayoshi FUJII, Takashi ONOUE, Masaaki NARIHISA
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Publication number: 20120197490Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: ApplicationFiled: April 10, 2012Publication date: August 2, 2012Applicant: SHINKO ELECTRIC CO., LTD.Inventors: Yasushi MURAGISHI, Hideaki MORIYA, Yushi SATO, Takashi FUKUNAGA, Katsuyoshi NAKANO, Hiroshi NAKAGAWA, Takayoshi FUJII, Takashi ONOUE, Masaaki NARIHISA
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Publication number: 20120197491Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: ApplicationFiled: April 10, 2012Publication date: August 2, 2012Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Yasushi MURAGISHI, Hideaki MORIYA, Yushi SATO, Takashi FUKUNAGA, Katsuyoshi NAKANO, Hiroshi NAKAGAWA, Takayoshi FUJII, Takashi ONOUE, Masaaki NARIHISA
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Publication number: 20120062047Abstract: A linear actuator includes a linear actuator body (2), a casing (3) for housing the linear actuator body (2), and insulating oil (L) that fills the casing (3) with a coil (44) of the linear actuator body (2) submerged therein. In such a configuration, heat generated by the coil (44) is quickly released to the oil (L) and is then conducted to the casing (3). The oil (L) fully spreads into gaps in the coil (44), of course. Therefore, heat is released very efficiently. Thus, by improving the heat-releasing characteristic, a linear actuator having a reduced size and a reduced weight is provided.Type: ApplicationFiled: November 14, 2011Publication date: March 15, 2012Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hiroshi NAKAGAWA, Takayoshi Fujii, Takashi Fukunaga, Takashi Onoue
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Publication number: 20110198945Abstract: A linear actuator, wherein a permanent magnet is reliably prevented from being damaged. In a first linear actuator, the width of a gap between a first contact section and a second contact section in a radial direction or the width of a gap between the first contact section and the second contact section in a rotating direction is less than the width of a gap between a permanent magnet and a magnetic pole section. In a second linear actuator, a flat plate-like permanent magnet is provided in that one of a movable section and a stationary section which is provided with a coil for generating a magnetic flux for reciprocating the movable section, and that surface of the other which is opposed to the permanent magnet and functions as a magnetic pole surface is formed flat. In a third linear actuator, each of an engaging projection and a cutout is provided so as to be oriented in the direction in which the magnetic force of the permanent magnet acts on the magnetic pole section.Type: ApplicationFiled: April 21, 2011Publication date: August 18, 2011Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Hiroshi NAKAGAWA, Takayoshi Fujii, Takashi Fukunaga, Takashi Onoue
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Publication number: 20110048118Abstract: The present invention provides a vibration damping device which can enhance a vibration damping effect even in a case where a vibration damping target position and a vibration damping force generation position are different from each other.Type: ApplicationFiled: May 13, 2009Publication date: March 3, 2011Applicant: SINFONIA TECHNOLOGY CO., LTD.Inventors: Yushi Sato, Hideaki Moriya, Takeo Ito, Takayoshi Fujii, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Hidetoshi Katada, Takeshi Tomizaki, Takashi Onoue, Yasushi Muragishi
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Publication number: 20100204881Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.Type: ApplicationFiled: April 27, 2007Publication date: August 12, 2010Applicant: SHINKO ELECTRIC CO., LTD.Inventors: Yaushi MURAGISHI, Hideaki MORIYA, Yushi SATO, Takashi FUKUNAGA, Katsuyoshi NAKANO, Hiroshi NAKAGAWA, Takayoshi Fujii, Takashi ONOUE, Masaaki NARIHISA