Patents by Inventor Takahiro Nagaoka
Takahiro Nagaoka 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: 12139118Abstract: A safe parking system is provided with: a torque-generating motor; a final drive including side gears drivingly coupled with the motor, a differential gear with a lock to prevent a differential motion between the side gears and an actuator for releasing the lock; an ignition key having an ON position and an OFF position; a differential-lock switch having an open position and a closed position; a switching unit for selecting whether the actuator is turned on or off; and a controller configured to, when the ignition key is detected to be in the OFF position, turn off the actuator if the differential-lock switch is in the open position, and execute no operation about the actuator if the differential-lock switch is in the closed position.Type: GrantFiled: December 8, 2022Date of Patent: November 12, 2024Assignee: GKN Automotive LimitedInventors: Isao Hirota, Takahiro Nagaoka
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Publication number: 20240337120Abstract: A reinforcing bar binding machine capable of reliably performing a wire gripping operation includes a first movable gripping member that is displaced in a direction to contact with and separate from one side of a fixed gripping member and a second movable gripping member that is displaced in a direction to contact with and separate from the other side of the fixed gripping member. A bending portion brings the first movable gripping member and the second movable gripping member into and out of contact with the fixed gripping member. The fixed gripping member includes a shaft that rotatably supports the first movable gripping member and the second movable gripping member. Further, the bending portion includes an opening and closing pin that pushes an opening and closing guide hole provided in the first movable gripping member, and an opening and closing guide hole provided in the second movable gripping member.Type: ApplicationFiled: April 5, 2024Publication date: October 10, 2024Inventors: Takahiro Nagaoka, Akira Kasahara
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Patent number: 12000469Abstract: A differential is provided with: a torque receiving casing; a differential gear set having first and second side gears to differentially distribute torque to the first and second side gears; a clutch interposed between the casing and the first side gear and configured to exert a frictional braking force on the first side gear against the casing to limit a differential motion between the first side gear and the second side gear; an actuator configured to apply a pressing force to the clutch to control the differential motion; and an electronic control unit configured to calculate a demand torque value from the input torque, compare the wheel load with a threshold value to determine a correction value, make a correction in the demand torque value by the correction value to obtain a demand value, and control an electric power supplied to the actuator in response to the demand value.Type: GrantFiled: December 7, 2023Date of Patent: June 4, 2024Assignee: GKN Automotive LimitedInventors: Masato Hoshino, Ryuya Saito, Takahiro Nagaoka
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Patent number: 11976480Abstract: A reinforcing bar binding machine capable of reliably performing a wire gripping operation includes a first movable gripping member that is displaced in a direction to contact with and separate from one side of a fixed gripping member and a second movable gripping member that is displaced in a direction to contact with and separate from the other side of the fixed gripping member. A bending portion brings the first movable gripping member and the second movable gripping member into and out of contact with the fixed gripping member. The fixed gripping member includes a shaft that rotatably supports the first movable gripping member and the second movable gripping member. Further, the bending portion includes an opening and closing pin that pushes an opening and closing guide hole provided in the first movable gripping member, and an opening and closing guide hole provided in the second movable gripping member.Type: GrantFiled: September 8, 2022Date of Patent: May 7, 2024Assignee: Max Co., Ltd.Inventors: Takahiro Nagaoka, Akira Kasahara
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Publication number: 20230417294Abstract: A system for controlling a clutch is provided with: an action member rotatable about an axis; a motor drivingly connected to the action member to impart a rotational motion about the axis to the action member; a conversion mechanism drivingly connected to the action member to convert the rotational motion about the axis into an axial motion; a clutch member constituting the clutch and drivingly connected to the conversion mechanism so as to be driven by the axial motion, the clutch member being movable axially bidirectionally from a first position where the clutch is disconnected, through a second position, to a third position where the clutch is connected; and a controller configured to measure and compare a rotational angle of the motor with a reference value to determine at which of the first position, the second position, and the third position the clutch member is.Type: ApplicationFiled: September 8, 2023Publication date: December 28, 2023Inventors: Yuu Yaguchi, Takahiro Nagaoka, Ryuya Saito, Kazutaka Kawata
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Patent number: 11779998Abstract: It provides a reinforcing bar binding machine that allows binding objects such as reinforcing bars to be bound by wires with end portions of the wires directed to the binding object side. The reinforcing bar binding machine (1A) includes: a magazine (2A) in which two wires (W) are housed in a drawable manner; a curl guide unit (5A) that winds the juxtaposed wires (W) around the reinforcing bars (S); a wire feeding unit (3A) that winds the wires (W) around the reinforcing bars (S) with the curl guide unit (5A) in an operation of juxtaposing and feeding the wires (W) and winds the wires (W), which is wound around the reinforcing bars (S), around the reinforcing bars (S); and a binding unit (7A) that twists crossing portions of one end side and the other end side of each of the wires (W) wound around the reinforcing bars (S).Type: GrantFiled: December 23, 2020Date of Patent: October 10, 2023Assignee: MAX CO., LTD.Inventors: Osamu Itagaki, Akira Kasahara, Takahiro Nagaoka
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Patent number: 11779997Abstract: A reinforcing bar binding machine includes a magazine in which two wires are housed in a drawable manner; a curl guide unit that winds the juxtaposed wires around the reinforcing bars and a wire feeding unit that winds the wires around the reinforcing bars with the curl guide unit in an operation of juxtaposing and feeding the wires so that the wires are wound around the reinforcing bars. In addition, the binding machine includes a binding unit that twists crossing portions of one end side and the other end side of each of the wires wound around the reinforcing bars. The binding unit further includes a bending portion that bends the one end side and the other end side of each of the wires, which are wound around the reinforcing bars, toward the reinforcing bars.Type: GrantFiled: December 23, 2020Date of Patent: October 10, 2023Assignee: MAX CO., LTD.Inventors: Osamu Itagaki, Akira Kasahara, Takahiro Nagaoka
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Publication number: 20230104316Abstract: A safe parking system is provided with: a torque-generating motor; a final drive including side gears drivingly coupled with the motor, a differential gear with a lock to prevent a differential motion between the side gears and an actuator for releasing the lock; an ignition key having an ON position and an OFF position; a differential-lock switch having an open position and a closed position; a switching unit for selecting whether the actuator is turned on or off; and a controller configured to, when the ignition key is detected to be in the OFF position, turn off the actuator if the differential-lock switch is in the open position, and execute no operation about the actuator if the differential-lock switch is in the closed position.Type: ApplicationFiled: December 8, 2022Publication date: April 6, 2023Inventors: Isao Hirota, Takahiro Nagaoka
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Publication number: 20230003039Abstract: A reinforcing bar binding machine capable of reliably performing a wire gripping operation includes a first movable gripping member that is displaced in a direction to contact with and separate from one side of a fixed gripping member and a second movable gripping member that is displaced in a direction to contact with and separate from the other side of the fixed gripping member. A bending portion brings the first movable gripping member and the second movable gripping member into and out of contact with the fixed gripping member. The fixed gripping member includes a shaft that rotatably supports the first movable gripping member and the second movable gripping member. Further, the bending portion includes an opening and closing pin that pushes an opening and closing guide hole provided in the first movable gripping member, and an opening and closing guide hole provided in the second movable gripping member.Type: ApplicationFiled: September 8, 2022Publication date: January 5, 2023Applicant: MAX CO., LTD.Inventors: Takahiro NAGAOKA, Akira KASAHARA
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Patent number: 11459778Abstract: A reinforcing bar binding machine includes a first movable gripping member that is displaced in a direction to come in contact with and separate from one side of a fixed gripping member. A second movable gripping member is displaced in a direction to come in contact with and separate from the other side of the fixed gripping member; and a bending portion brings the first movable gripping member and the second movable gripping member into and out of contact with the fixed gripping member. The fixed gripping member includes a shaft that rotatably supports the first movable gripping member and the second movable gripping member. In addition, the bending portion includes an opening and closing pin that pushes an opening and closing guide hole provided in the first movable gripping member and an opening and closing guide hole provided in the second movable gripping member.Type: GrantFiled: June 30, 2020Date of Patent: October 4, 2022Assignee: MAX CO., LTD.Inventors: Takahiro Nagaoka, Akira Kasahara
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Patent number: 11333231Abstract: A drive control apparatus includes a circuitry configured to operate a differential lock device of a differential device in timings which are different between a two wheel drive state and a four wheel drive state. The differential device is disposed between one of a pair of front wheels and a pair of rear wheels of the vehicle and configured to transmit a driving force from a drive source to the one of the pair of front wheels and the pair of rear wheels. The differential lock device is configured to lock a differential rotation of a pair of output members of the differential device that are differentially rotatable with respect to each other, and configured to respectively output the drive force.Type: GrantFiled: May 25, 2021Date of Patent: May 17, 2022Assignee: GKN Automotive LimitedInventors: Takahiro Nagaoka, Ryuya Saitoh
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Patent number: 11274458Abstract: A binding machine includes a first guide having an introduction part into which the wire to be fed by the wire feeding unit is to be introduced, and configured to curl the wire introduced from the introduction part, a second guide configured to guide the wire delivered from the first guide toward the binding unit, a main body part having one end portion at which the first guide and the second guide are provided, and, an entry regulation part provided in the main body part, provided at one side of the introduction part of the first guide at a downstream side of the binding unit with respect to a feeding direction of the wire to be fed toward the first guide by the wire feeding unit, and configured to prevent the wire from entering into one side of the introduction part of the first guide.Type: GrantFiled: June 13, 2019Date of Patent: March 15, 2022Assignee: MAX CO., LTD.Inventors: Osamu Itagaki, Takahiro Nagaoka
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Patent number: 11248666Abstract: A system is configured to control a clutch that connects a first rotating body and a second rotating body. The system includes a biasing portion, an actuator, an energization device, and a control unit. The biasing portion permanently biases the clutch in a connecting direction. The actuator drives the clutch in a disconnecting direction. The energization device energizes the actuator. The control unit controls the energization device. The energization device outputs a first current value to the actuator when a connection of the clutch is detected even if a condition for permitting a disconnection is satisfied. The energization device outputs a second current value lower than the first current value when the condition for permitting the disconnection is satisfied and a disconnection of the clutch is detected.Type: GrantFiled: July 7, 2020Date of Patent: February 15, 2022Assignee: GKN Automotive LimitedInventor: Takahiro Nagaoka
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Publication number: 20210388889Abstract: A drive control apparatus includes a circuitry configured to operate a differential lock device of a differential device in timings which are different between a two wheel drive state and a four wheel drive state. The differential device is disposed between one of a pair of front wheels and a pair of rear wheels of the vehicle and configured to transmit a driving force from a drive source to the one of the pair of front wheels and the pair of rear wheels. The differential lock device is configured to lock a differential rotation of a pair of output members of the differential device that are differentially rotatable with respect to each other, and configured to respectively output the drive force.Type: ApplicationFiled: May 25, 2021Publication date: December 16, 2021Inventors: Takahiro Nagaoka, Ryuya Saitoh
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Publication number: 20210138527Abstract: A reinforcing bar binding machine includes a magazine in which two wires are housed in a drawable manner; a curl guide unit that winds the juxtaposed wires around the reinforcing bars and a wire feeding unit that winds the wires around the reinforcing bars with the curl guide unit in an operation of juxtaposing and feeding the wires so that the wires are wound around the reinforcing bars. In addition, the binding machine includes a binding unit that twists crossing portions of one end side and the other end side of each of the wires wound around the reinforcing bars. The binding unit further includes a bending portion that bends the one end side and the other end side of each of the wires, which are wound around the reinforcing bars, toward the reinforcing bars.Type: ApplicationFiled: December 23, 2020Publication date: May 13, 2021Applicant: MAX CO., LTD.Inventors: Osamu ITAGAKI, Akira KASAHARA, Takahiro NAGAOKA
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Publication number: 20210114080Abstract: It provides a reinforcing bar binding machine that allows binding objects such as reinforcing bars to be bound by wires with end portions of the wires directed to the binding object side. The reinforcing bar binding machine (1A) includes: a magazine (2A) in which two wires (W) are housed in a drawable manner; a curl guide unit (5A) that winds the juxtaposed wires (W) around the reinforcing bars (S); a wire feeding unit (3A) that winds the wires (W) around the reinforcing bars (S) with the curl guide unit (5A) in an operation of juxtaposing and feeding the wires (W) and winds the wires (W), which is wound around the reinforcing bars (S), around the reinforcing bars (S); and a binding unit (7A) that twists crossing portions of one end side and the other end side of each of the wires (W) wound around the reinforcing bars (S).Type: ApplicationFiled: December 23, 2020Publication date: April 22, 2021Applicant: MAX CO., LTD.Inventors: Osamu ITAGAKI, Akira KASAHARA, Takahiro NAGAOKA
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Patent number: 10906086Abstract: A reinforcing bar binding machine includes a magazine in which two wires are housed in a drawable manner; a curl guide unit that winds the juxtaposed wires around the reinforcing bars and a wire feeding unit that winds the wires around the reinforcing bars with the curl guide unit in an operation of juxtaposing and feeding the wires so that the wires are wound around the reinforcing bars. In addition, the binding machine includes a binding unit that twists crossing portions of one end side and the other end side of each of the wires wound around the reinforcing bars. The binding unit further includes a bending portion that bends the one end side and the other end side of each of the wires, which are wound around the reinforcing bars, toward the reinforcing bars.Type: GrantFiled: July 21, 2016Date of Patent: February 2, 2021Assignee: MAX CO., LTD.Inventors: Osamu Itagaki, Akira Kasahara, Takahiro Nagaoka
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Publication number: 20210010544Abstract: A system is configured to control a clutch that connects a first rotating body and a second rotating body. The system includes a biasing portion, an actuator, an energization device, and a control unit. The biasing portion permanently biases the clutch in a connecting direction. The actuator drives the clutch in a disconnecting direction. The energization device energizes the actuator. The control unit controls the energization device. The energization device outputs a first current value to the actuator when a connection of the clutch is detected even if a condition for permitting a disconnection is satisfied. The energization device outputs a second current value lower than the first current value when the condition for permitting the disconnection is satisfied and a disconnection of the clutch is detected.Type: ApplicationFiled: July 7, 2020Publication date: January 14, 2021Inventor: Takahiro Nagaoka
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Publication number: 20200399914Abstract: A reinforcing bar binding machine includes a first movable gripping member that is displaced in a direction to come in contact with and separate from one side of a fixed gripping member. A second movable gripping member is displaced in a direction to come in contact with and separate from the other side of the fixed gripping member; and a bending portion brings the first movable gripping member and the second movable gripping member into and out of contact with the fixed gripping member. The fixed gripping member includes a shaft that rotatably supports the first movable gripping member and the second movable gripping member. In addition, the bending portion includes an opening and closing pin that pushes an opening and closing guide hole provided in the first movable gripping member and an opening and closing guide hole provided in the second movable gripping member.Type: ApplicationFiled: June 30, 2020Publication date: December 24, 2020Applicant: MAX CO., LTD.Inventors: Takahiro NAGAOKA, Akira KASAHARA
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Patent number: 10843564Abstract: A vehicle includes a first axle temporary driven by a motor, a second axle permanently connected to the motor via a propeller shaft, and a sub-shaft that connects the propeller shaft and the first axle. A control system for a connection between the motor and the first axle includes a first clutch between the propeller shaft and the sub-shaft, a second clutch between the sub-shaft and the first axle. The first clutch is controlled to continue applying a synchronous torque until the second clutch is determined to be connected. The second clutch is controlled to be connected in response to a determination that the second clutch is connectable.Type: GrantFiled: July 11, 2019Date of Patent: November 24, 2020Assignee: GKN Automotive Ltd.Inventors: Yuu Yaguchi, Takahiro Nagaoka, Yasumasa Narita