Patents by Inventor Kazuhiro Itou
Kazuhiro Itou 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: 10443679Abstract: A damper device that includes a first torque transmission path including a first elastic body that transmits torque between the input element and the output element; and a second torque transmission path disposed in parallel with the first torque transmission path and including first and second intermediate elements, a second elastic body that transmits the torque between the input element and the first intermediate element, a third elastic body that transmits the torque between the first intermediate element and the second intermediate element, and a fourth elastic body that transmits the torque between the second intermediate element and the output element.Type: GrantFiled: August 20, 2015Date of Patent: October 15, 2019Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Takikawa, Hiroki Nagai, Takao Sakamoto, Kazuhiro Itou
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Publication number: 20190301563Abstract: A rotary inertia mass damper of a damper device is configured to include a planetary gear that includes a driven member with outer teeth, first and second input plate member as a carrier which rotatably supports a plurality of pinion gears, and a ring gear that meshes with the plurality of pinion gears and works as the mass body. The outer teeth of the driven member are arranged to be disposed outside first and second springs in a radial direction of the damper device. The driven member, the plurality of pinion gears and the ring gear are arranged to at least partially overlap with the first and second springs as viewed in the radial direction. A motion of the ring gear in the axial direction is restricted by the plurality of pinion gears.Type: ApplicationFiled: June 17, 2019Publication date: October 3, 2019Applicants: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.Inventors: Takuya YOSHIKAWA, Aki OGAWA, Akiyoshi KATO, Ryosuke OTSUKA, Yoshihiro INOUE, Yoshihiro TAKIKAWA, Hiroki NAGAI, Masaki WAJIMA, Takao SAKAMOTO, Kazuhiro ITOU
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Patent number: 10371231Abstract: A damper device that includes an input element to which torque from an engine is transferred; an output element; a first intermediate element; a second intermediate element; a first elastic body that transfers torque between the input element and the first intermediate element; a second elastic body that transfers torque between the first intermediate element and the output element; a third elastic body that transfers torque between the input element and the second intermediate element; a fourth elastic body that transfers torque between the second intermediate element and the output element; and a fifth elastic body that transfers torque between the first intermediate element and the second intermediate element.Type: GrantFiled: March 31, 2016Date of Patent: August 6, 2019Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Takikawa, Hiroki Nagai, Masaki Wajima, Takao Sakamoto, Kazuhiro Itou, Nobuo Suzuki
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Patent number: 10364864Abstract: A damper device that includes an input element to which torque from an engine is transferred; an output element; a first intermediate element; a second intermediate element; a first elastic body that transfers torque between the input element and the first intermediate element; a second elastic body that transfers torque between the first intermediate element and the output element; a third elastic body that transfers torque between the input element and the second intermediate element; a fourth elastic body that transfers torque between the second intermediate element and the output element; and a fifth elastic body that transfers torque between the first intermediate element and the second intermediate element.Type: GrantFiled: June 8, 2016Date of Patent: July 30, 2019Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Takikawa, Hiroki Nagai, Masaki Wajima, Takao Sakamoto, Kazuhiro Itou, Nobuo Suzuki
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Patent number: 10358937Abstract: A starting device includes a pump impeller, a turbine runner for rotating together with the pump impeller, a damper mechanism having an input element receiving power from an internal combustion engine, an output element coupled to a speed change device, an intermediate element between the input and output elements, and a dynamic damper for damping vibration at a predetermined frequency among vibration transferred to the speed change device. The starting device includes a first dynamic damper having an elastic member and a first mass body coupled the first elastic member, and coupled to the intermediate element; and a second dynamic damper having an elastic member and a second mass body connected to the second elastic member, and coupled to the intermediate element. The first mass body of the first dynamic damper or the second mass body of the second dynamic damper includes at least the turbine runner.Type: GrantFiled: March 27, 2013Date of Patent: July 23, 2019Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Takikawa, Kazuto Maruyama, Kazuhiro Itou
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Publication number: 20190219140Abstract: A damper device that includes an input to which torque from an engine is transmitted, a first intermediate element, a second intermediate element, an output, a first elastic body that transmits the torque between the input and the first intermediate element, a second elastic body that transmits the torque between the first intermediate element and the output, a third elastic body that transmits the torque between the input and the second intermediate element, and a fourth elastic body that transmits the torque between the second intermediate element and the output.Type: ApplicationFiled: August 1, 2017Publication date: July 18, 2019Applicant: AISIN AW CO., LTD.Inventors: Kazuyoshi ITO, Hiroki NAGAI, Masaki WAJIMA, Kazuhiro ITOU
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Patent number: 10323716Abstract: A damper device includes first inner springs configured to transmit a torque between a drive member and an intermediate member, second inner springs configured to transmit a torque between the intermediate member and a driven member, and a rotary inertia mass damper including a sun gear serving as a mass body rotating with relative rotation of the drive member to the driven member. The rotary inertia mass damper is provided in parallel to a torque transmission path including the intermediate member, the first inner springs and the second inner springs. A damping ratio ? of the intermediate member determined based on a moment of inertia J2 of the intermediate member and rigidities k1 and k2 of the first and the second inner springs and is less than a value.Type: GrantFiled: December 25, 2015Date of Patent: June 18, 2019Assignees: AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTDInventors: Takuya Yoshikawa, Aki Ogawa, Tomonori Kinoshita, Yuji Kanyama, Makoto Yamaguchi, Kazuyoshi Ito, Hiroki Nagai, Masaki Wajima, Takao Sakamoto, Kazuhiro Itou, Yoshihiro Takikawa, Yoichi Oi
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Publication number: 20190178332Abstract: A damper apparatus includes an input element, an output element, a first intermediate element, a second intermediate element, a first elastic body configured to transfer the torque between the input and first intermediate elements, a second elastic body configured to transfer the torque between the first intermediate and output elements, a third elastic body, a fourth elastic body configured to transfer the torque between the second intermediate element and the output element, and a fifth elastic body configured to transfer the torque between the first intermediate element and the second intermediate element. At least one of the first and second intermediate elements includes a single member on which a first torque transfer portion disposed between the first and second elastic bodies or between the third and fourth elastic bodies and a second torque transfer portion configured to exchange the torque with the fifth elastic body are both formed.Type: ApplicationFiled: March 16, 2017Publication date: June 13, 2019Applicant: AISIN AW CO., LTD.Inventors: Kazuyoshi ITO, Masaki WAJIMA, Kazuhiro ITOU
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Patent number: 10309483Abstract: A damper device with a first intermediate element; a second intermediate element; a first elastic body that transmits torque between the input element and the first intermediate element; a second elastic body that transmits torque between the first intermediate element and the output element; a third elastic body that transmits torque between the input element and the second intermediate element; a fourth elastic body that transmits torque between the second intermediate element and the output element; and a fifth elastic body that transmits torque between the first intermediate element and the second intermediate element.Type: GrantFiled: September 14, 2015Date of Patent: June 4, 2019Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Takikawa, Hiroki Nagai, Masaki Wajima, Takao Sakamoto, Kazuhiro Itou
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Publication number: 20190101180Abstract: A damper apparatus that includes an input to which a torque from an engine is transferred; an output; a first intermediate element; a second intermediate element; a first elastic body configured to transfer the torque between the input and the first intermediate element; a second elastic body configured to transfer the torque between the first intermediate element and the output; a third elastic body configured to transfer the torque between the input and the second intermediate element; a fourth elastic body configured to transfer the torque between the second intermediate element and the output; and a fifth elastic body configured to transfer the torque between the first intermediate element and the second intermediate element.Type: ApplicationFiled: March 16, 2017Publication date: April 4, 2019Applicant: AISIN AW CO., LTD.Inventors: Kazuyoshi ITO, Masaki WAJIMA, Kazuhiro ITOU
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Patent number: 10248310Abstract: An information processing apparatus includes a detection unit that detects a direction of an operation of a first stage in which a contact position on an operation surface moves from a peripheral region of the operation surface to a center region thereof, and a direction of an operation of a second stage in which the contact position moves from the center region to the peripheral region that continues from the operation of the first stage; and a processing unit that specifies a target item from among an input item group based on the direction of the operation of the first stage, and specifies an input candidate corresponding to the direction of the operation of the second stage from among the specified target item.Type: GrantFiled: May 25, 2016Date of Patent: April 2, 2019Assignee: FUJITSU CONNECTED TECHNOLOGIES LIMITEDInventor: Kazuhiro Itou
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Publication number: 20190063505Abstract: First to fourth springs SP11 to SP22, two each of four types of springs, are disposed such that attachment radii r11 to r22, which are the distances from a central axis CA of a damper device to the axes of the respective first to fourth springs SP11 to SP22, are equal. Further, the first to fourth springs SP11 to SP22 are disposed such that the axes thereof are arranged in the same plane. With this arrangement, the four types of springs (first to fourth springs SP11 to SP22) can be compactly arranged, and the axial length of the damper device can be reduced.Type: ApplicationFiled: March 16, 2017Publication date: February 28, 2019Applicant: AISIN AW CO., LTD.Inventors: Kazuyoshi ITO, Hiroki NAGAI, Masaki WAJIMA, Kazuhiro ITOU
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Publication number: 20190063548Abstract: A damper apparatus includes: an input element; an output element; a first torque transfer path including an intermediate element, a first elastic body, and a second elastic body configured to transfer the torque between the intermediate and the output element; and a second torque transfer path including a third elastic body configured to transfer the torque between the input element and the output element. The intermediate element includes a first plate member including a torque transfer portion arranged so as to extend in a radial direction of the damper apparatus between the first and second elastic bodies and configured to support at least ends of the first and second elastic bodies from a radially outer side, and a second plate member coupled to a mass and including a coupling portion arranged between the first and second elastic bodies and fitted to the torque transfer portion of the first plate member.Type: ApplicationFiled: March 16, 2017Publication date: February 28, 2019Applicant: AISIN AW CO., LTD.Inventors: Kazuyoshi ITO, Masaki WAJIMA, Kazuhiro ITOU
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Publication number: 20190048940Abstract: The overall size of a damper device having two transmission paths is reduced. A damper device including an input element to which torque from an engine is transmitted and an output element includes: a first intermediate element; a second intermediate element; a first elastic body disposed between the input element and the first intermediate element; a second elastic body disposed between the first intermediate element and the output element; a third elastic body disposed between the input element and the second intermediate element; a fourth elastic body disposed between the second intermediate element and the output element; and a fifth elastic body disposed between the first intermediate element and the second intermediate element, wherein attachment radii of the first to fourth elastic bodies are equal.Type: ApplicationFiled: March 15, 2017Publication date: February 14, 2019Applicant: AISIN AW CO., LTD.Inventors: Kazuyoshi ITO, Hiroki NAGAI, Masaki WAJIMA, Kazuhiro ITOU
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Patent number: 10132384Abstract: A centrifugal pendulum vibration absorbing device includes a flange that is coupled to a driven member that is a rotary element that rotates using power from an engine and a mass body that is coupled to the flange so as to oscillate about a pendulum fulcrum PF and is designed so as to have an effective order qeff that is greater by a correction amount ?q that is at least associated with the non-linearity of an order q of vibration of the flange and the mass body that is dependent on an oscillation angle ? of the mass body than an order qtag of vibration that is generated in the engine to be damped.Type: GrantFiled: January 16, 2015Date of Patent: November 20, 2018Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Takikawa, Yoichi Oi, Hiroki Nagai, Kazuhiro Itou
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Publication number: 20180320755Abstract: A damper device that includes an input to which torque from an engine is transmitted; an output; a first intermediate element; a second intermediate element; a first elastic body disposed between the input and the first intermediate element; a second elastic body disposed between the first intermediate element and the output; a third elastic body disposed between the input and the second intermediate element; a fourth elastic body disposed between the second intermediate element and the output; and a fifth elastic body disposed between the first intermediate element and the second intermediate element, wherein at least one of the first to fifth elastic bodies has negative rigidity.Type: ApplicationFiled: December 12, 2016Publication date: November 8, 2018Applicant: AISIN AW CO., LTD.Inventors: Yoshihiro TAKIKAWA, Hiroki NAGAI, Masaki WAJIMA, Takao SAKAMOTO, Kazuhiro ITOU
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Patent number: 10072726Abstract: A damper device including an input to which power from an internal combustion engine is transmitted and an output, the damper device including: a first torque transmission path including a first elastic body that transmits torque between the input and the output; and a second torque transmission path disposed in parallel with the first torque transmission path and including an intermediate element, a second elastic body that transmits the torque between the input and the intermediate element, and a third elastic body that transmits the torque between the intermediate element and the output, wherein the second and third elastic bodies are placed outside the first elastic body in a radial direction of the damper device so as to be arranged side by side in a circumferential direction of the damper device.Type: GrantFiled: August 5, 2015Date of Patent: September 11, 2018Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Takikawa, Yoichi Oi, Hiroki Nagai, Kazuhiro Itou
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Publication number: 20180245663Abstract: A rotary inertia mass damper of a damper device is configured to include a planetary gear that includes a driven member with outer teeth, first and second input plate member as a carrier which rotatably supports a plurality of pinion gears, and a ring gear that meshes with the plurality of pinion gears and works as the mass body. The outer teeth of the driven member are arranged to be disposed outside first and second springs in a radial direction of the damper device. The driven member, the plurality of pinion gears and the ring gear are arranged to at least partially overlap with the first and second springs as viewed in the radial direction. A motion of the ring gear in the axial direction is restricted by the plurality of pinion gears.Type: ApplicationFiled: June 27, 2016Publication date: August 30, 2018Applicants: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.Inventors: Takuya YOSHIKAWA, Aki OGAWA, Akiyoshi KATO, Ryosuke OTSUKA, Yoshihiro INOUE, Yoshihiro TAKIKAWA, Hiroki NAGAI, Masaki WAJIMA, Takao SAKAMOTO, Kazuhiro ITOU
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Publication number: 20180187743Abstract: An intermediate member includes first and second intermediate members. The first and the second intermediate members are provided with a spring supporting portion that extends along springs and supports the springs from an outer side. An expansion and contraction of the springs enables the intermediate member to be movable in a circumferential direction. Accordingly, sliding distances caused by the expansion and contraction of the first and the second springs become shorter, compared with a configuration where the first and the second spring are supported by the driven member or drive member from the outer side, thereby decreasing an energy loss (hysteresis) caused by the sliding. As a result, a vibration damping performance of the damper device can be improved.Type: ApplicationFiled: June 27, 2016Publication date: July 5, 2018Applicants: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.Inventors: Takuya YOSHIKAWA, Aki OGAWA, Akiyoshi KATO, Ryosuke OTSUKA, Kazuyoshi ITO, Masaki WAJIMA, Kazuhiro ITOU
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Publication number: 20180156307Abstract: Six through holes are formed in pinion gear supporting portions of two input plate members working as a carrier that supports pinion gears of a rotary inertia mass damper. The two input plate members are opposed to each other in such a manner that the through holes are aligned with each other. The through holes support the pinion gear. The input plate members are coupled with each other by means of rivets passing through the through holes located on both sides of the through holes. This configuration ensures strength (rigidity) of the carrier, suppresses deformation of a planetary gear, and improves meshing accuracy of gears.Type: ApplicationFiled: June 27, 2016Publication date: June 7, 2018Applicants: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.Inventors: Takuya YOSHIKAWA, Aki OGAWA, Akiyoshi KATO, Ryosuke OTSUKA, Kazuyoshi ITO, Masaki WAJIMA, Kazuhiro ITOU