Patents by Inventor Motohiro Yanagida
Motohiro Yanagida 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: 10369875Abstract: There is provided a torque rod (1) in which any one of a partition wall (27) between an interior of a first accommodation portion (15) for accommodating a first elastic bush (11) and an interior of a third accommodation portion (17) for accommodating an actuator (14) and a partition wall (28) between an interior of a second accommodation portion (16) for accommodating a second elastic bush (12) and the interior of the third accommodation portion (17) has a communication hole (29) for allowing the interiors of both the accommodation portions to communicate with each other, and a whole area of the other partition wall is closed. In the communication hole (29), a counterbore (29a) is formed in an end portion on a side opposite to the third accommodation portion (17). The torque rod includes a bolt (30) that is inserted into the communication hole (29), and that has a head portion (30a) accommodated in the counterbore (29a).Type: GrantFiled: September 9, 2016Date of Patent: August 6, 2019Assignee: BRIDGESTONE CORPORATIONInventors: Motohiro Yanagida, Akira Ueki
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Patent number: 10316928Abstract: The present invention includes a first mounting member (11); a second mounting member (12); an actuator (14) which dampens and absorbs input vibration by reciprocally moving a movable element (13) in accordance with input vibration; an actuator case (15) which houses the actuator therein; and a relay connector (17) which is mounted on the actuator case and electrically connects the connector (16) of the actuator and an external power source. The relay connector includes a terminal (27) which connects the connector of the actuator and the external power supply, and a housing (28) in which the terminal is installed. The actuator case is formed with an insertion hole (31) through which the terminal is inserted, and a mounting cylinder (32) surrounding the insertion hole is provided to protrude from the actuator case. One of the mounting cylinder and the housing is airtightly fitted to the inside of the other thereof via a packing (35).Type: GrantFiled: January 21, 2016Date of Patent: June 11, 2019Assignee: BRIDGESTONE CORPORATIONInventors: Motohiro Yanagida, Akira Ueki
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Publication number: 20190054811Abstract: There is provided a torque rod (1) in which any one of a partition wall (27) between an interior of a first accommodation portion (15) for accommodating a first elastic bush (11) and an interior of a third accommodation portion (17) for accommodating an actuator (14) and a partition wall (28) between an interior of a second accommodation portion (16) for accommodating a second elastic bush (12) and the interior of the third accommodation portion (17) has a communication hole (29) for allowing the interiors of both the accommodation portions to communicate with each other, and a whole area of the other partition wall is closed. In the communication hole (29), a counterbore (29a) is formed in an end portion on a side opposite to the third accommodation portion (17). The torque rod includes a bolt (30) that is inserted into the communication hole (29), and that has a head portion (30a) accommodated in the counterbore (29a).Type: ApplicationFiled: September 9, 2016Publication date: February 21, 2019Applicant: BRIDGESTONE CORPORATIONInventors: Motohiro YANAGIDA, Akira UEKI
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Publication number: 20180058537Abstract: The present invention includes a first mounting member (11); a second mounting member (12); an actuator (14) which dampens and absorbs input vibration by reciprocally moving a movable element (13) in accordance with input vibration; an actuator case (15) which houses the actuator therein; and a relay connector (17) which is mounted on the actuator case and electrically connects the connector (16) of the actuator and an external power source. The relay connector includes a terminal (27) which connects the connector of the actuator and the external power supply, and a housing (28) in which the terminal is installed. The actuator case is formed with an insertion hole (31) through which the terminal is inserted, and a mounting cylinder (32) surrounding the insertion hole is provided to protrude from the actuator case. One of the mounting cylinder and the housing is airtightly fitted to the inside of the other thereof via a packing (35).Type: ApplicationFiled: January 21, 2016Publication date: March 1, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Motohiro YANAGIDA, Akira UEKI
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Patent number: 9435396Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: GrantFiled: October 15, 2015Date of Patent: September 6, 2016Assignee: BRIDGESTONE CORPORATIONInventors: Yoshinori Matsumoto, Motohiro Yanagida, Akira Ueki, Masaaki Ohashi, Yasuyuki Nagashima, Yutaka Higuchi
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Patent number: 9376004Abstract: An anti-vibration device for a vehicle including a rod (11) fixed to an engine (1) at one end portion (12) thereof and fixed to a vehicle body at the other end portion (13) thereof, an inertia mass (15) supported on the rod (11), an actuator (17) operative to reciprocate the inertia mass in an axial direction of the rod, and an acceleration sensor (21) that detects vibration of the rod in the axial direction. The acceleration sensor (21) is disposed between the one end portion (12) of the rod (11) and the other end portion (13) of the rod (11). Accordingly, sensitivity to pitch vibration of the rod (11) is reduced so that accuracy in detection of rigid body resonance in the axial direction is enhanced.Type: GrantFiled: June 13, 2012Date of Patent: June 28, 2016Assignees: NISSAN MOTOR CO., LTD., BRIDGESTONE CORPORATIONInventors: Yuusuke Satou, Masahiko Kondo, Hiroshi Kojima, Fumiharu Kurose, Motohiro Yanagida, Akira Ueki
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Publication number: 20160033000Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Applicant: BRIDGESTONE CORPORATIONInventors: Yoshinori MATSUMOTO, Motohiro YANAGIDA, Akira UEKI, Masaaki OHASHI, Yasuyuki NAGASHIMA, Yutaka HIGUCHI
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Patent number: 9188191Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: GrantFiled: June 10, 2010Date of Patent: November 17, 2015Assignee: BRIDGESTONE CORPORATIONInventors: Yoshinori Matsumoto, Motohiro Yanagida, Akira Ueki, Masaaki Ohashi, Yasuyuki Nagashima, Yutaka Higuchi
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Patent number: 9074654Abstract: A vibration-damping device includes: an elastic body connecting a tubular first mounting member and a second mounting member; and a partition member partitioning a fluid chamber within the first mounting member, the fluid chamber being filled with fluid, into a primary fluid chamber on one side and an auxiliary fluid chamber on another side. The partitioning member includes: the limiting passages communicating between the primary and the auxiliary chambers, and generating fluid column resonance with respect to input vibration, thereby damping and reducing the vibration; switching device switching between the resonance frequencies of the limiting passages; a connection passage connecting the primary and the auxiliary chambers; a fluid pressure introducing passage into the switching device to operate the switching device; and a thin film body provided within the connection passage, and blocking the communication between the primary and the auxiliary fluid chambers via the connection passage.Type: GrantFiled: January 25, 2011Date of Patent: July 7, 2015Assignee: BRIDGESTONE CORPORATIONInventors: Akira Ueki, Motohiro Yanagida
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Publication number: 20150101901Abstract: A vehicular antivibration device includes a torque rod and an actuator. The torque rod is connected at a first end to a vehicle body and connected at a second end to a vibration source. The actuator is disposed between the first end and the second end of the torque rod, includes an inertia mass supported on the torque rod, and causes the inertia mass to reciprocate in the axial direction of the torque rod. The actuator includes a coil, a magnetic core, a permanent magnet and a heat-conducting member. The magnetic core forms magnetic paths for the coil, and the coil is wound around the outer periphery of the magnetic core. The permanent magnet faces the inertia mass and is disposed on the magnetic core. The heat-conducting member is disposed so as to contact the coil and the torque rod.Type: ApplicationFiled: June 10, 2013Publication date: April 16, 2015Inventors: Emi Tokunoh, Takanobu Sugiyama, Masahiko Kondo, Koji Tanimura, Akira Ueki, Fumiharu Kurose, Motohiro Yanagida
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Publication number: 20140124645Abstract: An anti-vibration device for a vehicle including a rod (11) fixed to an engine (1) at one end portion (12) thereof and fixed to a vehicle body at the other end portion (13) thereof, an inertia mass (15) supported on the rod (11), an actuator (17) operative to reciprocate the inertia mass in an axial direction of the rod, and an acceleration sensor (21) that detects vibration of the rod in the axial direction. The acceleration sensor (21) is disposed between the one end portion (12) of the rod (11) and the other end portion (13) of the rod (11). Accordingly, sensitivity to pitch vibration of the rod (11) is reduced so that accuracy in detection of rigid body resonance in the axial direction is enhanced.Type: ApplicationFiled: June 13, 2012Publication date: May 8, 2014Applicants: BRIDGESTONE CORPORATION, NISSAN MOTOR CO., LTD.Inventors: Yuusuke Satou, Masahiko Kondo, Hiroshi Kojima, Fumiharu Kurose, Motohiro Yanagida, Akira Ueki
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Publication number: 20120313306Abstract: A vibration-damping device includes: an elastic body connecting a tubular first mounting member and a second mounting member; and a partition member (8) partitioning a fluid chamber within the first mounting member, the fluid chamber being filled with fluid, into a primary fluid chamber on one side and an auxiliary fluid camber on another side.Type: ApplicationFiled: January 25, 2011Publication date: December 13, 2012Applicant: BRIDGESTONE CORPORATIONInventors: Akira Ueki, Motohiro Yanagida
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Publication number: 20120139174Abstract: A vibrationproof device which is a liquid sealed vibrationproof device includes a tubular first mounting member (3) that is connected to either one of a vibration generating portion and a vibration receiving portion, a second mounting member (4) that is connected to other one, an elastic body (5) that elastically connects the first mounting member (3) and the second mounting member (4), and a partition member (8) that partitions a liquid chamber (7) of the inside of the first mounting member (3) into a main liquid chamber (7A) of an upper side having the elastic body as a portion of a wall surface and an auxiliary liquid chamber (7B) of a lower side, and a restricting passage (80) which communicates with the main liquid chamber (7A) and the auxiliary liquid chamber (7B).Type: ApplicationFiled: June 10, 2010Publication date: June 7, 2012Applicant: BRIDGESTONE CORPORATIONInventors: Yoshinori Matsumoto, Motohiro Yanagida, Akira Ueki, Masaaki Ohashi, Yasuyuki Nagashima, Yutaka Higuchi
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Publication number: 20120126167Abstract: Provided is a working fluid which is sealed in a liquid-sealed space in a device to be used, including: a first liquid and a second liquid which are insoluble with each other, wherein a weight of the second liquid contained is smaller than that of the first liquid, and the second liquid has a higher vapor pressure than that of a main component of the first liquid at the same temperature.Type: ApplicationFiled: June 17, 2010Publication date: May 24, 2012Applicant: BRIDGESTONE CORPORATIONInventors: Akira Ueki, Yasuyuki Nagashima, Motohiro Yanagida, Yasuhiro Suzuki, Tatsurou Ishiyama, Katsumi Tashiro