Patents by Inventor Yasuaki Suzuki

Yasuaki Suzuki 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).

  • Patent number: 11719291
    Abstract: The present disclosure discloses one example of a one-way coupling that eliminates the need for a component corresponding to a guide piece. The one-way coupling of the present discloser includes an input shaft and an output shaft, and is configured to transmit a drive force from the input shaft to the output shaft, and inhibit the drive force inputted to the output shaft from being transmitted to the input shaft. The one-way coupling includes: a transmitter; an immovable ring; a pressure-contact cam; a first wedge member displaceable between a locked position and an unlocked position, and receiving a pressing force from the pressure-contact cam when the drive force is inputted to the input shaft, and thereby the first wedge member is displaced to the locked position; and a first holder holding an arrangement of the first wedge member when the drive force is inputted to the output shaft.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: August 8, 2023
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kosuke Taniguchi, Wataru Sakaguchi, Yasuaki Suzuki, Masashi Hiroshima
  • Patent number: 11680609
    Abstract: A unidirectional joint includes a wedge member having a pressure contact portion that comes in pressure contact with an inner circumferential surface of an immovable ring. The wedge member includes a first follower displacing the wedge member to an unlocked position by receiving a pressing force from a release cam when a driving force is input to an input side protrusion and a second follower displacing the wedge member to a locked position by receiving a pressing force from a pressure cam when a driving force is input to an output side rotating part.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: June 20, 2023
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Masashi Hiroshima, Wataru Sakaguchi, Yasuaki Suzuki
  • Publication number: 20230175558
    Abstract: The present disclosure discloses one example of a one-way coupling that eliminates the need for a component corresponding to a guide piece. The one-way coupling of the present discloser includes an input shaft and an output shaft, and is configured to transmit a drive force from the input shaft to the output shaft, and inhibit the drive force inputted to the output shaft from being transmitted to the input shaft. The one-way coupling includes: a transmitter; an immovable ring; a pressure-contact cam; a first wedge member displaceable between a locked position and an unlocked position, and receiving a pressing force from the pressure-contact cam when the drive force is inputted to the input shaft, and thereby the first wedge member is displaced to the locked position; and a first holder holding an arrangement of the first wedge member when the drive force is inputted to the output shaft.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 8, 2023
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Kosuke TANIGUCHI, Wataru SAKAGUCHI, Yasuaki SUZUKI, Masashi HIROSHIMA
  • Patent number: 11668530
    Abstract: Oil cooler is provided to include: a number of core plates each of which has three oil pass holes where oil flows and three cooling water pass holes where cooling water flows; heat-exchanging section where core plates are laminated to define inter-plate oil flow passage and inter-plate cooling water flow passage alternately between an adjacent pair of core plates, in which oil and cooling water can mutually independently flow in direction perpendicular to core plate lamination direction while changing its flow direction by U-turn thereby proceeding in core plate lamination direction as a whole; one end part located at one side of core plate lamination direction and provided with both oil inlet and oil outlet; and the other end part located at the other side of core plate lamination direction and provided with both cooling water inlet and cooling water outlet.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: June 6, 2023
    Assignees: MAHLE INTERNATIONAL GMBH, MAHLE JAPAN LTD.
    Inventors: Hirotaka Kobayashi, Yasuaki Suzuki, Masahiro Ariyama
  • Publication number: 20230160441
    Abstract: A unidirectional joint includes a wedge member having a pressure contact portion that comes in pressure contact with an inner circumferential surface of an immovable ring. The wedge member includes a first follower displacing the wedge member to an unlocked position by receiving a pressing force from a release cam when a driving force is input to an input side protrusion and a second follower displacing the wedge member to a locked position by receiving a pressing force from a pressure cam when a driving force is input to an output side rotating part.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 25, 2023
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Masashi HIROSHIMA, Wataru SAKAGUCHI, Yasuaki SUZUKI
  • Patent number: 11618350
    Abstract: A lifter device includes a pinion gear and a rotation control device that is configured to control rotation of the pinion gear. The rotation control device includes a rotation shaft, a support member, a rotation driving mechanism, and a lock mechanism. The rotation drive mechanism includes a feed gear, and a plurality of feed pawls. The lock mechanism is configured to release locking of the rotation shaft until any one of the feed pawls meshes with the feed gear when an operation handle is operated. A plurality of the feed pawls are provided with respect to either operation direction on a seat lifting side or lowering side of the operation handle, and one of the feed pawls meshes with the feed gear when at least one of the others of the feed pawls does not mesh with the gear.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: April 4, 2023
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Yasuaki Suzuki
  • Patent number: 11384822
    Abstract: A lifter device includes: an output shaft; a support member supporting the output shaft; an input member coupled to an operation handle; a feed portion transmitting forward and reverse rotation of the input member to the output shaft; a lock portion locking the rotation of the output shaft; and a friction generating portion applying a frictional force to the rotation of the output shaft. A rotating cam of the friction generating portion is a switching structure of switching to: a friction-suppression state when the operation handle is in a neutral position and when the operation handle is turned from the neutral position in a direction of raising the seat; and a friction-on state when the operation handle is turned from the neutral position in a direction of lowering the seat.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: July 12, 2022
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke Kajino, Yasuaki Suzuki, Masataka Iwata
  • Patent number: 11279263
    Abstract: Pawls in a lifter device, having: outer teeth that are rotatably supported by shafts for in lock plates and are meshed with inner teeth of a base; and pins that are provided in an intermediate section in the radial direction, between the shaft center of the shafts and the teeth tips of the inner teeth, and are pressed in the rotation direction by a rotation transmittance plate during a release operation. The pins have a protruding shape that protrudes from the pawls in the thrust direction.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: March 22, 2022
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke Kajino, Yasuaki Suzuki
  • Patent number: 11273732
    Abstract: Pawls in a lifter device have: outer teeth that are rotatably supported by shafts in lock plates and are meshed with inner teeth of a base; and pins that are provided in an intermediate section in the radial direction, between the shaft center of the shafts and the teeth tips of the inner teeth, and are pressed in the rotation direction by a rotation transmittance plate during a release operation.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: March 15, 2022
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke Kajino, Yasuaki Suzuki
  • Patent number: 11225174
    Abstract: A lifter device includes: a pinion gear; a rotation control device including: a rotation shaft rotating in synchronization with the pinion gear; a support member supporting the rotation shaft; a rotation drive mechanism configured to rotate the rotation shaft; and a lock mechanism configured to lock rotation of the rotation shaft when an operation handle is in an operation-released state and including: a first tooth; and a second tooth configured to selectively mesh with the first tooth to lock relative rotation of the rotation shaft and the support member; and a speed increasing mechanism provided closer to the rotation shaft than a meshing portion of the first tooth and the second tooth in a rotation transmission path, configured to transmit the rotation of the rotation shaft to one of the first tooth and the second tooth, and configured to speed up the transmitted rotation of the rotation shaft.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: January 18, 2022
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Yasuaki Suzuki
  • Publication number: 20210394649
    Abstract: A rotary plate provided to a lifter device is equipped with a wall which presses engaging ends of a pole toward the direction that brings said ends into abutment with a tooth surface of an inner tooth. A to-be-pressed surface of the pole has a shape that lies along a circular arc centered at an outline shape center point which is at a location shifted from a fluctuation center of the pole. The outline shape center point is on a normal line of the to-be-pressed surface at a contact point, and is situated on a side opposite to the direction in which the pole is fluctuated to be locked with respect to a straight line connecting between the contact point and the fluctuation center.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 23, 2021
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke KAJINO, Yasuaki SUZUKI
  • Patent number: 11142099
    Abstract: A lifter device includes: an output shaft; a support member supporting the output shaft; an input member coupled to an operation handle; a feed portion transmitting forward and reverse rotation of the input member to the output shaft; a lock portion locking the rotation of the output shaft; and a friction generating portion applying a frictional force to the rotation of the output shaft. A rotating cam of the friction generating portion is a switching structure of switching to: a friction-suppression state when the operation handle is in a neutral position and when the operation handle is turned from the neutral position in a direction of raising the seat; and a friction-on state when the operation handle is turned from the neutral position in a direction of lowering the seat. In the friction-on state, a rotating member is pressed against a fixed member and friction is generated.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: October 12, 2021
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke Kajino, Yasuaki Suzuki, Masataka Iwata
  • Publication number: 20210146805
    Abstract: A lifter device includes a pinion gear and a rotation control device that is configured to control rotation of the pinion gear. The rotation control device includes a rotation shaft, a support member, a rotation driving mechanism, and a lock mechanism. The rotation drive mechanism includes a feed gear, and a plurality of feed pawls. The lock mechanism is configured to release locking of the rotation shaft until any one of the feed pawls meshes with the feed gear when an operation handle is operated. A plurality of the feed pawls are provided with respect to either operation direction on a seat lifting side or lowering side of the operation handle, and one of the feed pawls meshes with the feed gear when at least one of the others of the feed pawls does not mesh with the gear.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 20, 2021
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Yasuaki SUZUKI
  • Publication number: 20210129713
    Abstract: Pawls in a lifter device, having: outer teeth that are rotatably supported by shafts for in lock plates and are meshed with inner teeth of a base; and pins that are provided in an intermediate section in the radial direction, between the shaft center of the shafts and the teeth tips of the inner teeth, and are pressed in the rotation direction by a rotation transmittance plate during a release operation. The pins have a protruding shape that protrudes from the pawls in the thrust direction.
    Type: Application
    Filed: April 25, 2019
    Publication date: May 6, 2021
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke KAJINO, Yasuaki SUZUKI
  • Publication number: 20210122264
    Abstract: Pawls in a lifter device have: outer teeth that are rotatably supported by shafts in lock plates and are meshed with inner teeth of a base; and pins that are provided in an intermediate section in the radial direction, between the shaft center of the shafts and the teeth tips of the inner teeth, and are pressed in the rotation direction by a rotation transmittance plate during a release operation.
    Type: Application
    Filed: April 25, 2019
    Publication date: April 29, 2021
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke KAJINO, Yasuaki SUZUKI
  • Publication number: 20200398706
    Abstract: A lifter device includes: a pinion gear; a rotation control device including: a rotation shaft rotating in synchronization with the pinion gear; a support member supporting the rotation shaft; a rotation drive mechanism configured to rotate the rotation shaft; and a lock mechanism configured to lock rotation of the rotation shaft when an operation handle is in an operation-released state and including: a first tooth; and a second tooth configured to selectively mesh with the first tooth to lock relative rotation of the rotation shaft and the support member; and a speed increasing mechanism provided closer to the rotation shaft than a meshing portion of the first tooth and the second tooth in a rotation transmission path, configured to transmit the rotation of the rotation shaft to one of the first tooth and the second tooth, and configured to speed up the transmitted rotation of the rotation shaft.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 24, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Yasuaki SUZUKI
  • Publication number: 20200284330
    Abstract: A lifter device includes: an output shaft; a support member supporting the output shaft; an input member coupled to an operation handle; a feed portion transmitting forward and reverse rotation of the input member to the output shaft; a lock portion locking the rotation of the output shaft; and a friction generating portion applying a frictional force to the rotation of the output shaft. A rotating cam of the friction generating portion is a switching structure of switching to: a friction-suppression state when the operation handle is in a neutral position and when the operation handle is turned from the neutral position in a direction of raising the seat; and a friction-on state when the operation handle is turned from the neutral position in a direction of lowering the seat.
    Type: Application
    Filed: March 3, 2020
    Publication date: September 10, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke KAJINO, Yasuaki SUZUKI, Masataka IWATA
  • Publication number: 20200282873
    Abstract: A lifter device includes: an output shaft; a support member supporting the output shaft; an input member coupled to an operation handle; a feed portion transmitting forward and reverse rotation of the input member to the output shaft; a lock portion locking the rotation of the output shaft; and a friction generating portion applying a frictional force to the rotation of the output shaft. A rotating cam of the friction generating portion is a switching structure of switching to: a friction-suppression state when the operation handle is in a neutral position and when the operation handle is turned from the neutral position in a direction of raising the seat; and a friction-on state when the operation handle is turned from the neutral position in a direction of lowering the seat. In the friction-on state, a rotating member is pressed against a fixed member and friction is generated.
    Type: Application
    Filed: March 3, 2020
    Publication date: September 10, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke KAJINO, Yasuaki SUZUKI, Masataka IWATA
  • Publication number: 20200208917
    Abstract: Oil cooler is provided to include: a number of core plates each of which has three oil pass holes where oil flows and three cooling water pass holes where cooling water flows; heat-exchanging section where core plates are laminated to define inter-plate oil flow passage and inter-plate cooling water flow passage alternately between an adjacent pair of core plates, in which oil and cooling water can mutually independently flow in direction perpendicular to core plate lamination direction while changing its flow direction by U-turn thereby proceeding in core plate lamination direction as a whole; one end part located at one side of core plate lamination direction and provided with both oil inlet and oil outlet; and the other end part located at the other side of core plate lamination direction and provided with both cooling water inlet and cooling water outlet.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 2, 2020
    Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Hirotaka KOBAYASHI, Yasuaki SUZUKI, Masahiro ARIYAMA
  • Publication number: 20200171984
    Abstract: A stopper is provided with a rotation shaft-side protrusion provided both on an outer circumferential surface of an outer circumferential surface part of a rotation shaft and on an end surface of a ratchet, and protrudes from each of the surfaces, an engagement member slidably supported on the outer circumferential surface, and engages with the rotation shaft-side protrusion in a rotation direction of the rotation shaft, and a support member-side protrusion provided to engage with the engagement member in the rotation direction such that a sliding surface part of a support member is formed concentric with the outer circumferential surface and a portion of the sliding surface part protrudes toward the outer circumferential surface part, wherein the sliding surface part faces the outer circumferential surface part so that the engagement member is slidably interposed between the support member and the outer circumferential surface.
    Type: Application
    Filed: May 24, 2018
    Publication date: June 4, 2020
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Yusuke KAJINO, Yasuaki SUZUKI