Patents by Inventor Yoshinari Yoshimura
Yoshinari Yoshimura 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: 20200072293Abstract: A power transmission device includes an input-side rotary part to which a torque is inputted from an engine, an output-side rotary part, and a damper part. The output-side rotary part includes a first rotor and a second rotor. The first rotor is configured to be rotatable relative to the input-side rotary part. The first rotor is configured to be rotatable unitarily with the input-side rotary part at greater than or equal to a predetermined relative rotational angle. The second rotor is configured to be rotatable unitarily with the first rotor. The second rotor is configured to be rotatable relative to the first rotor at greater than or equal to the predetermined relative rotational angle. The damper part is configured to elastically couple the input-side rotary part and the output-side rotary part.Type: ApplicationFiled: January 15, 2018Publication date: March 5, 2020Inventors: Yasunori DOMAN, Takeshi SENOUE, Yoshinari YOSHIMURA
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Publication number: 20190309823Abstract: A power transmission device includes an input-side rotary part to which a torque is inputted from an engine, an output-side rotary part, and a damper part. The output-side rotary part includes a first rotor and a second rotor. The first rotor is configured to be rotatable relative to the input-side rotary part. The second rotor is configured to be unitarily rotatable with the first rotor. The second rotor is configured to be rotatable relative to the first rotor when the torque fluctuates with a predetermined magnitude or greater. The damper part is configured to elastically couple the input-side rotary part and the output-side rotary part.Type: ApplicationFiled: January 15, 2018Publication date: October 10, 2019Inventors: Yasunori DOMAN, Takeshi SENOUE, Yoshinari YOSHIMURA
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Patent number: 10352396Abstract: A damper device includes a first rotary member, a second rotary member, a plurality of coil springs, an intermediate member and a slide spring. The first rotary member is a member into which a power of an engine is inputted. The second rotary member is disposed to be rotatable with respect to the first rotary member. The plurality of coil springs are configured to be compressed between the first rotary member and the second rotary member. The intermediate member is configured to engage the plurality of coil springs and couple the plurality of coil springs together. The slide spring is disposed axially between the first rotary member and the intermediate member. The slide spring is configured to slide against the first rotary member. The slide spring is configured not to slide with respect to the intermediate member.Type: GrantFiled: February 16, 2017Date of Patent: July 16, 2019Assignee: EXEDY CorporationInventors: Hiroshi Uehara, Yoshinari Yoshimura, Takeshi Senoue
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Publication number: 20190128368Abstract: A damper device for a vehicle is disposed between a power source and an output-side member in the vehicle. The damper device includes an input-side rotary member, an output-side rotary member, a damper, and an inertia body. The input-side rotary member is coupled to an output end of the power source. The output-side rotary member is coupled to the output-side member. The input-side rotary member and the output-side rotary member are coupled by the damper to be rotatable relatively to each other. The inertia body is coupled to at least one of the input-side rotary member and the output-side rotary member, the inertia body formed by laminating a plurality of plate members.Type: ApplicationFiled: August 15, 2017Publication date: May 2, 2019Inventors: Takeshi SENOUE, Yoshinari YOSHIMURA
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Patent number: 9970487Abstract: A damper device is provided with a first rotating body, a second rotating body, a coil spring and a spring seat. The coil spring is interposed in a circumferential direction between the first and second rotating bodies. The resin spring seat includes a seat portion, an overhang portion and a pair of clamping protrusions. The overhang portion extends in the circumferential direction from an outer diameter end of the seat portion and covers an outer diameter side of the coil spring. The clamping protrusions protrude from the seat portion and sandwich an attaching portion of the one of the rotating bodies. The clamping protrusions are relatively turnable in a radial direction of the rotating bodies. The clamping protrusions have a low-rigidity portion on an outer diameter direction side of the spring central axis and a high-rigidity portion on an inner diameter direction side of the spring central axis.Type: GrantFiled: September 13, 2013Date of Patent: May 15, 2018Assignees: Nissan Motor Co., Ltd., Exedy CorporationInventors: Tomoharu Fujii, Yuuzou Akasaka, Hiroki Uehara, Yoshinari Yoshimura, Takeshi Senoue
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Patent number: 9926984Abstract: A damper device is provided with a first rotating body, a second rotating body, a coil spring and a spring seat. The coil spring is interposed in a circumferential direction between the first and second rotating bodies. The resin spring seat includes a metallic core member inside. The resin spring seat has a seat portion and an overhang portion. The metallic core member has includes a metallic core seat part with a metallic core exposed portion. The metallic core seat part is provided along the spring seating surface in the seat portion of the spring seats. The metallic core exposed portion is exposed so as to be capable of abutting the coil springs. The metallic core exposed portion is provided on a portion of the spring seating surface which slides against the coil springs.Type: GrantFiled: September 13, 2013Date of Patent: March 27, 2018Assignees: Nissan Motor Co., Ltd., Exedy CorporationInventors: Hiroki Uehara, Yuuzou Akasaka, Makoto Ogata, Tomoharu Fujii, Yoshinari Yoshimura, Takeshi Senoue
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Patent number: 9909625Abstract: A damper device is provided with a first rotating body, a second rotating body, a coil spring and a spring seat. The coil spring is interposed in a circumferential direction between the first and second rotating bodies. The resin spring seat includes a metallic core member inside. The resin spring seat has a seat portion and an overhang portion. The metallic core member has an overhang metallic core part that has a low-rigidity portion and a high-rigidity portion. The low-rigidity portion is provided on a side close to the seat portion with a relatively lower rigidity. The high-rigidity portion is provided on a side far from the seat portion with a relatively higher rigidity.Type: GrantFiled: September 13, 2013Date of Patent: March 6, 2018Assignees: Nissan Motor Co., Ltd., Exedy CorporationInventors: Hiroki Uehara, Yuuzou Akasaka, Makoto Ogata, Yoshinari Yoshimura, Takeshi Senoue
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Publication number: 20170159745Abstract: A damper device includes a first rotary member, a second rotary member, a plurality of coil springs, an intermediate member and a slide spring. The first rotary member is a member into which a power of an engine is inputted. The second rotary member is disposed to be rotatable with respect to the first rotary member. The plurality of coil springs are configured to be compressed between the first rotary member and the second rotary member. The intermediate member is configured to engage the plurality of coil springs and couple the plurality of coil springs together. The slide spring is disposed axially between the first rotary member and the intermediate member. The slide spring is configured to slide against the first rotary member. The slide spring is configured not to slide with respect to the intermediate member.Type: ApplicationFiled: February 16, 2017Publication date: June 8, 2017Inventors: Hiroshi UEHARA, Yoshinari YOSHIMURA, Takeshi SENOUE
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Patent number: 9599187Abstract: A damper device includes a first rotary member, a second rotary member, a plurality of coil springs, an intermediate member and a positioning structure. The first rotary member is a member into which a power of an engine is inputted. The second rotary member is disposed to be rotatable with respect to the first rotary member. The plurality of coil springs are configured to be compressed between the first rotary member and the second rotary member. The intermediate member is engaged with the plurality of coil springs and couples the plurality of coil springs together. The positioning structure radially positions the intermediate member with respect to at least either of the first rotary member and the second rotary member on an inner peripheral side.Type: GrantFiled: February 13, 2015Date of Patent: March 21, 2017Assignee: EXEDY CorporationInventors: Hiroshi Uehara, Yoshinari Yoshimura, Takeshi Senoue
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Patent number: 9599186Abstract: A flywheel assembly includes a first rotary member, a second rotary member, a first coil spring, a second coil spring, an intermediate plate, a first stopper mechanism and a first contact relief member. The first coil spring is configured to be compressed between the first rotary member and the second rotary member. The second coil spring is configured to be compressed between the first rotary member and the second rotary member and has a stiffness greater than a stiffness of the first coil spring. The intermediate member is engaged with the first coil spring and the second coil spring and couples the first coil spring and the second coil spring in series. The first stopper mechanism is configured to deactivate the first coil spring. The first contact relief member is movably disposed inside the first coil spring and is capable of relieving the contact in the first stopper mechanism during activation of the first coil spring.Type: GrantFiled: February 13, 2015Date of Patent: March 21, 2017Assignee: EXEDY CorporationInventors: Hiroshi Uehara, Yoshinari Yoshimura, Takeshi Senoue
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Publication number: 20150240910Abstract: A damper device includes a first rotary member, a second rotary member, a plurality of coil springs, an intermediate member and a positioning structure. The first rotary member is a member into which a power of an engine is inputted. The second rotary member is disposed to be rotatable with respect to the first rotary member. The plurality of coil springs are configured to be compressed between the first rotary member and the second rotary member. The intermediate member is engaged with the plurality of coil springs and couples the plurality of coil springs together. The positioning structure radially positions the intermediate member with respect to at least either of the first rotary member and the second rotary member on an inner peripheral side.Type: ApplicationFiled: February 13, 2015Publication date: August 27, 2015Inventors: Hiroshi UEHARA, Yoshinari YOSHIMURA, Takeshi SENOUE
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Publication number: 20150240909Abstract: A flywheel assembly includes a first rotary member, a second rotary member, a first coil spring, a second coil spring, an intermediate plate, a first stopper mechanism and a first contact relief member. The first coil spring is configured to be compressed between the first rotary member and the second rotary member. The second coil spring is configured to be compressed between the first rotary member and the second rotary member and has a stiffness greater than a stiffness of the first coil spring. The intermediate member is engaged with the first coil spring and the second coil spring and couples the first coil spring and the second coil spring in series. The first stopper mechanism is configured to deactivate the first coil spring. The first contact relief member is movably disposed inside the first coil spring and is capable of relieving the contact in the first stopper mechanism during activation of the first coil spring.Type: ApplicationFiled: February 13, 2015Publication date: August 27, 2015Inventors: Hiroshi UEHARA, Yoshinari YOSHIMURA, Takeshi SENOUE
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Publication number: 20150240911Abstract: A damper device includes a first rotary member, a second rotary member, a plurality of coil springs, an intermediate member and a slide spring. The first rotary member is a member into which a power of an engine is inputted. The second rotary member is disposed to be rotatable with respect to the first rotary member. The plurality of coil springs are configured to be compressed between the first rotary member and the second rotary member. The intermediate member is engaged with the plurality of coil springs and couples the plurality of coil springs together. The slide spring is disposed axially between the first rotary member and the intermediate member. The slide spring is configured to slide against the first rotary member. The slide spring is configured not to slide on the intermediate member.Type: ApplicationFiled: February 12, 2015Publication date: August 27, 2015Inventors: Hiroshi UEHARA, Yoshinari YOSHIMURA, Takeshi SENOUE
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Patent number: 8647211Abstract: The torque limiter includes a flywheel, a clutch plate, a spline hub, a clutch disc assembly and a transmission torque limiting part. The flywheel includes a friction coupling surface. The clutch plate includes plural axial through holes. Plural friction members are respectively attached to the through holes. The spline hub can be engaged with a transmission-side shaft. The clutch disc assembly circumferentially elastically couples the clutch plate and the spline hub. The transmission torque limiting part limits torque to be transmitted from the flywheel to the transmission-side shaft while the friction members are interposed and held between the transmission torque limiting part and the friction coupling surface of the flywheel.Type: GrantFiled: April 15, 2010Date of Patent: February 11, 2014Assignee: Exedy CorporationInventors: Yasunori Doman, Takashi Harada, Yoshinari Yoshimura
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Patent number: 8454446Abstract: A damper mechanism for a clutch includes a first rotary body, a second rotary body, and an elastic member. The first rotary member includes a first member, a second member, and first and second connecting sections. The second rotary body is configured between the first and second members in an axial direction and rotatably configured relative to the first rotary body. The elastic member is rotatably configured between the first and second connecting sections to connect the first and second rotary bodies elastically. The second rotary body includes first and second protruding sections being arranged between the first and second connecting sections such that the first and second protruding sections contact the connecting sections. The first member includes a pair of first holes being configured with the rotational axis between the first holes for positioning pins being inserted in the first holes during an assembly.Type: GrantFiled: September 10, 2009Date of Patent: June 4, 2013Assignee: EXEDY CorporationInventor: Yoshinari Yoshimura
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Publication number: 20120046114Abstract: A simple and low-cost structure is provided for fixing friction members of a torque limiter. The torque limiter includes a flywheel (5), a clutch plate (20), a spline hub (22), a clutch disc assembly (6) and a transmission torque limiting part (7). The flywheel (5) includes a friction coupling surface (14b). The clutch plate (20) includes plural axial through holes (20b). Plural friction members (26) are respectively attached to the through holes (20b). The spline hub (22) can be engaged with a transmission-side shaft (3). The clutch disc assembly (6) circumferentially elastically couples the clutch plate (20) and the spline hub (22). The transmission torque limiting part (7) limits torque to be transmitted from the flywheel (5) to the transmission-side shaft (3) while the friction members (26) are interposed and held between the transmission torque limiting part (7) and the friction coupling surface (14b) of the flywheel (5).Type: ApplicationFiled: April 15, 2010Publication date: February 23, 2012Applicant: EXEDY CorporationInventors: Yasunori Doman, Takashi Harada, Yoshinari Yoshimura
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Patent number: 8033918Abstract: A damper mechanism 4 has an input rotary member 2, a hub flange 6, a large coil spring 8 and a friction generating mechanism 5. In a state in which the input rotary member 2 is twisted to one side in the rotational direction with respect to the hub flange 6, the friction member is pressed in the rotational direction against the hub flange 6 in a state in which at least part of the friction member has been elastically deformed in the relational direction, so that the friction member and the hub flange 6 function as an integral member in the rotational direction. In a state in which the input rotary member 2 is twisted to one side in the rotational direction with respect to the hub flange 6, the friction member is capable of relative rotation with respect to the hub flange.Type: GrantFiled: October 24, 2007Date of Patent: October 11, 2011Assignee: Exedy CorporationInventors: Yoshinari Yoshimura, Hiroshi Uehara
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Publication number: 20110177869Abstract: A damper mechanism for a clutch includes a first rotary body, a second rotary body, and an elastic member. The first rotary member includes a first member, a second member, and first and second connecting sections. The second rotary body is configured between the first and second members in an axial direction and rotatably configured relative to the first rotary body. The elastic member is rotatably configured between the first and second connecting sections to connect the first and second rotary bodies elastically. The second rotary body includes first and second protruding sections being arranged between the first and second connecting sections such that the first and second protruding sections contact the connecting sections. The first member includes a pair of first holes being configured with the rotational axis between the first holes for positioning pins being inserted in the first holes during an assembly.Type: ApplicationFiled: September 10, 2009Publication date: July 21, 2011Applicant: EXEDY CORPORATIONInventor: Yoshinari Yoshimura
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Publication number: 20100130289Abstract: A damper mechanism 4 has an input rotary body 2, a hub flange 6, a splined hub 3, a third friction washer 60, a bushing 70, and an output plate 90. The third friction washer 60 is non-rotatably mounted on the hub flange 6 with respect to the hub flange 6, and has a friction member that contacts the input rotary body 2 in the axial direction. The bushing 70 is axially disposed between the hub flange 6 and the third friction washer 60, and is mounted on the hub flange 6 and the third friction washer 60 to be incapable of rotation with respect to the third friction washer 60. The output plate 90 is disposed between the third friction washer 60 and the bushing 70 in the axial direction, and is supported by the splined hub 3 to be capable of rotating integrally with the splined hub 3.Type: ApplicationFiled: May 28, 2008Publication date: May 27, 2010Applicant: EXEDY CORPORATIONInventors: Hiroshi Uehara, Yasuyuki Hashimoto, Hideki Hashimoto, Yoshinari Yoshimura
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Publication number: 20100075763Abstract: A damper mechanism 4 has an input rotary member 2, a hub flange 6, a large coil spring 8 and a friction generating mechanism 5. In a state in which the input rotary member 2 is twisted to one side in the rotational direction with respect to the hub flange 6, the friction member is pressed in the rotational direction against tile hub flange 6 in a state in which at least part of the friction member has been elastically deformed in the rotational direction, so that the friction member and the hub flange 6 function as an integral member in the rotational direction. In a state in which the input rotary member 2 is twisted to one side in the rotational direction with respect to the hub flange 6, the friction member is capable of relative rotation with respect to the hub flange 6.Type: ApplicationFiled: October 24, 2007Publication date: March 25, 2010Applicant: EXEDY CORPORATIONInventors: Yoshinari Yoshimura, Hiroshi Uehara