Patents by Inventor Tadasuke Higuchi
Tadasuke Higuchi 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: 20260021751Abstract: A seat member movable device that moves a seat member with respect to a placement base, the seat member movable device including a support disc that supports the seat member, a base that supports the support disc so as to be movable with respect to the placement base, and a drive device that moves the support disc. In a restrained state in which movement of the support disc is restrained by a restraining unit, as a lifting/lowering shaft is rotated by driving of a motor, a pinion moves in a first direction, and moves one of a first plate-shaped member and a second plate-shaped member in a direction away from the other thereof, to release the restrained state by the restraining unit.Type: ApplicationFiled: July 9, 2025Publication date: January 22, 2026Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Tadasuke HIGUCHI
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Patent number: 12510121Abstract: A rotational force transmission device configured to transmit a rotational force and applied to a vehicle seat apparatus. The rotational force transmission device includes an input-side transmission member having a ball point, an output-side transmission member slidably coupled to the input-side transmission member and having a ball point, and an elastic member providing an elastic force to make the input-side transmission member and the output-side transmission member displaced apart from each other along a central axis direction.Type: GrantFiled: April 3, 2023Date of Patent: December 30, 2025Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kouju Suzuki, Tadasuke Higuchi
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Publication number: 20250368097Abstract: A seat rotating device includes: a transmission state selection mechanism that is provided between a rotary disc and a release plate and selects between a non-transmission state in which rotation of the release plate is not transmitted to the rotary disc and a transmission state in which rotation of the release plate is transmitted to the rotary disc; and a lock unit that is provided between the rotary disc and an outer circumferential ring and provided to select between a rotationally fixed state in which rotation of the rotary disc with respect to the outer circumferential ring is fixed and a rotatable state in which rotation of the rotary disc with respect to the outer circumferential ring is allowed.Type: ApplicationFiled: May 21, 2025Publication date: December 4, 2025Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Shinichi ITO, Tadasuke HIGUCHI
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Publication number: 20250364867Abstract: Provided is an electric motor having a stator in which stator coils are circumferentially arranged. A center of the circumference is defined as a first center, and a position shifted from the first center is defined as a second center. The electric motor comprises: a ring rotor that is arranged inside the stator and has an annular shape around the second center; an eccentric shaft that is supported to be rotatable about the first center and supports the ring rotor such that the ring rotor is rotatable about the second center; an output portion that outputs a rotation of the ring rotor; a detector that detects a position of the ring rotor or the eccentric shaft; and a controller that controls a timing for energizing each of the stator coils based on a detection signal from the detector.Type: ApplicationFiled: May 22, 2025Publication date: November 27, 2025Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Tadasuke HIGUCHI
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Publication number: 20230323919Abstract: There is provided a rotational force transmission device configured to transmit a rotational force and applied to a vehicle seat apparatus. The rotational force transmission device includes an input-side transmission member having a ball point, an output-side transmission member slidably coupled to the input-side transmission member and having a ball point, and an elastic member providing an elastic force to make the input-side transmission member and the output-side transmission member displaced apart from each other along a central axis direction.Type: ApplicationFiled: April 3, 2023Publication date: October 12, 2023Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kouju SUZUKI, Tadasuke HIGUCHI
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Patent number: 10618431Abstract: A sliding device of the present disclosure includes: a fixed rail; a movable rail; a rack fixed within the fixed rail, the rack extending along an axis parallel to a longitudinal axis of the fixed rail; a pinion provided to the movable rail, the pinion including multiple teeth to be engaged with the rack and rotating by receiving a driving force; and a restrictor slidingly displaced integrally with the movable rail, the restrictor contacting with the rack when the movable rail is sliding, to thereby restrict the rack from being displaced in a direction away from the pinion.Type: GrantFiled: November 30, 2018Date of Patent: April 14, 2020Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Tadasuke Higuchi
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Patent number: 10583752Abstract: A sliding device of the present disclosure includes: a fixed rail; a movable rail; a rack; a pinion; an intermediate gear; a driving device; and a support member. The support member includes a first support body and a second support body. The first support body and the second support body being coupled below the pinion and integrally molded. The sliding device further includes a restricting body configured to restrict elastic displacement such that an end of the first support body above the pinion and an end of the second support body above the pinion separate from each other.Type: GrantFiled: November 30, 2018Date of Patent: March 10, 2020Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Tadasuke Higuchi
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Patent number: 10562411Abstract: Provided is a sliding device. The sliding device includes a fixed rail, a movable rail, a rack, a pinion, a locking mechanism that restricts sliding of the movable rail, and a gear mechanism. The gear mechanism includes multiple gears and transmits a rotation generated in an electric motor to the pinion. The gear mechanism is configured such that the pinion is capable of rotating more than a specified angle of rotation when the electric motor is in a stopped state.Type: GrantFiled: May 18, 2018Date of Patent: February 18, 2020Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Tadasuke Higuchi, Naoaki Hoshihara, Yoichi Takada
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Publication number: 20190168636Abstract: A sliding device of the present disclosure includes: a fixed rail; a movable rail; a rack; a pinion; an intermediate gear; a driving device; and a support member. The support member includes a first support body and a second support body. The first support body and the second support body being coupled below the pinion and integrally molded. The sliding device further includes a restricting body configured to restrict elastic displacement such that an end of the first support body above the pinion and an end of the second support body above the pinion separate from each other.Type: ApplicationFiled: November 30, 2018Publication date: June 6, 2019Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Tadasuke HIGUCHI
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Publication number: 20190168641Abstract: A sliding device of the present disclosure includes: a fixed rail; a movable rail; a rack fixed within the fixed rail, the rack extending along an axis parallel to a longitudinal axis of the fixed rail; a pinion provided to the movable rail, the pinion including multiple teeth to be engaged with the rack and rotating by receiving a driving force; and a restrictor slidingly displaced integrally with the movable rail, the restrictor contacting with the rack when the movable rail is sliding, to thereby restrict the rack from being displaced in a direction away from the pinion.Type: ApplicationFiled: November 30, 2018Publication date: June 6, 2019Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Tadasuke HIGUCHI
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Publication number: 20180334054Abstract: Provided is a sliding device. The sliding device includes a fixed rail, a movable rail, a rack, a pinion, a locking mechanism that restricts sliding of the movable rail, and a gear mechanism. The gear mechanism includes multiple gears and transmits a rotation generated in an electric motor to the pinion. The gear mechanism is configured such that the pinion is capable of rotating more than a specified angle of rotation when the electric motor is in a stopped state.Type: ApplicationFiled: May 18, 2018Publication date: November 22, 2018Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Tadasuke HIGUCHI, Naoaki HOSHIHARA, Yoichi TAKADA
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Patent number: 9586500Abstract: A slide rail of a vehicle seat includes a first rail to which a screw having a screw thread formed on an outer periphery is fixed, and a second rail that retains a nut into which the screw screws, and moves relative to the first rail by the nut rotating. The first rail has a through-hole into which the screw is inserted. At least one end of the screw has a deformed portion that is deformed toward an outside in a radial direction of the screw with respect to the first rail while the at least one end of the screw is in a state passing through the through-hole, and that keeps the screw from slipping out of the through-hole.Type: GrantFiled: August 6, 2015Date of Patent: March 7, 2017Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATIONInventors: Jueru Shimizu, Tadasuke Higuchi
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Publication number: 20160059740Abstract: A slide rail of a vehicle seat includes a first rail to which a screw having a screw thread formed on an outer periphery is fixed, and a second rail that retains a nut into which the screw screws, and moves relative to the first rail by the nut rotating. The first rail has a through-hole into which the screw is inserted. At least one end of the screw has a deformed portion that is deformed toward an outside in a radial direction of the screw with respect to the first rail while the at least one end of the screw is in a state passing through the through-hole, and that keeps the screw from slipping out of the through-hole.Type: ApplicationFiled: August 6, 2015Publication date: March 3, 2016Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA, SHIROKI CORPORATIONInventors: Jueru SHIMIZU, Tadasuke HIGUCHI
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Patent number: 8469448Abstract: An operation mechanism of a side support apparatus adapted to be accommodated in a right and left side support portions provided at a seatback and being movable between a support position and an open position, includes a support structure including a pulley and being movable between the open position and the support position, a first fixing portion including a first guide portion and a second guide portion and fixedly provided at a seatback member, and a drive cable being fixedly attached to the first fixing portion at a first end portion of the drive cable and being engaged with the pulley at an intermediate of the drive cable. The pulley is pushed by a tensile force generated at the drive cable by pulling the drive cable so that the support structure is movable relative to the first fixing portion in a direction toward the support position.Type: GrantFiled: February 1, 2011Date of Patent: June 25, 2013Assignee: Aisin Seiki Kabushiki KaishaInventors: Masatoshi Mori, Hideaki Honjo, Tadasuke Higuchi
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Publication number: 20110210590Abstract: An operation mechanism of a side support apparatus adapted to be accommodated in a right and left side support portions provided at a seatback and being movable between a support position and an open position, includes a support structure including a pulley and being movable between the open position and the support position, a first fixing portion including a first guide portion and a second guide portion and fixedly provided at a seatback member, and a drive cable being fixedly attached to the first fixing portion at a first end portion of the drive cable and being engaged with the pulley at an intermediate of the drive cable. The pulley is pushed by a tensile force generated at the drive cable by pulling the drive cable so that the support structure is movable relative to the first fixing portion in a direction toward the support position.Type: ApplicationFiled: February 1, 2011Publication date: September 1, 2011Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Masatoshi Mori, Hideaki Honjo, Tadasuke Higuchi