Patents by Inventor Kohshi Katoh

Kohshi Katoh 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: 11904744
    Abstract: A vehicle-mounted seat device includes an SB main frame, a back rest which the back of a seated person leans on, a relay disc fixed to the back rest, a first engagement member fixed with respect to the SB main frame at a position higher than the relay disc, an upper wire for suspending and holding the back rest from the first engagement member so as to be able to swing with respect to the SB main frame with the relay disc being the center, and a height adjustment mechanism constructed to be capable of pulling in part of the upper wire, so that an amount by which the upper wire is pulled in is changed to cause a change in disposed height of the back rest with respect to the SB main frame.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: February 20, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Patent number: 11535130
    Abstract: A vehicle seat includes a seat cushion configured to support the buttocks of an occupant, a seat back configured to support the back of the occupant, an elastic force adjustment unit configured to adjust elastic force of a lumbar spine support of the seat back configured to support the lumbar spine of the occupant, in a longitudinal direction, and a controller configured to operate the elastic force adjustment unit. The controller is configured to make the elastic force larger in the case where oscillation of the vehicle is large, than that in the case where oscillation of the vehicle is small.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: December 27, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Patent number: 11491900
    Abstract: A hanging type seat mounted in a vehicle comprises a seat main body for supporting an occupant from below; one or more front hanging tools which are passed across a front part of the seat main body, extended upward in the front-back direction, and attached to a structure in the vehicle; one or more rear hanging tools which are passed across a rear part of the seat main body, extended upward in the front-back direction, and attached to a structure in the vehicle; and two or more transverse hanging tools which are passed across both sides of the seat main body, extended laterally upward, and attached to a structure in the vehicle; wherein the seat main body is hung and held by the one or more front hanging tools, the one or more rear hanging tools, and the two or more transverse hanging tools.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: November 8, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kohshi Katoh, Tetsuya Nagai, Ken Motozawa, Mitsuru Asai, Takayuki Mori
  • Patent number: 11472320
    Abstract: In the vehicle seat, rear suspension members are provided at two positions spaced away from each other in a lateral direction on an edge of a seat cushion near a seatback, and support the seat cushion while the seat cushion is suspended from a seat cushion support frame so that the seat cushion is movable in the lateral direction. A front suspension member is provided at one position or two positions spaced away from each other in the lateral direction on ahead of the rear suspension members, and supports the seat cushion while the seat cushion is suspended from the seat cushion support frame so that the seat cushion is movable in the lateral direction.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: October 18, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Ryunosuke Seki, Kenji Iida, Akira Takinami, Masatoshi Hada
  • Patent number: 11458874
    Abstract: A vehicle seat includes a lock-to-neutral-position mechanism that locks a seat cushion at a neutral position, and an immediate lock mechanism that locks the seat cushion immediately at a current position when locking is required. A steering sensor senses a steering angle and a steering angular velocity. The immediate lock mechanism performs the locking when the steering angle is large, whereas the lock-to-neutral-position mechanism performs the locking when the steering velocity is high. When the steering wheel is at the neutral position, the locking by the immediate lock mechanism is released and the locking is switched over to the lock-to-neutral-position mechanism that is in a lock ready state.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: October 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Takashi Sugimoto, Osamu Oda, Kohshi Katoh, Akira Takinami, Masatoshi Hada
  • Patent number: 11305677
    Abstract: A vehicle seat device includes an SB main frame that is joined to a seat cushion via a reclining shaft; an SB subframe that is swingable with respect to the SB main frame at least about a roll axis; a backrest that is installed on the SB subframe; and a lower support wire and an upper support wire that limit rearward movement of the SB subframe and allow movement of the SB subframe about the roll axis. A straight line connecting between the front end and the rear end of the lower support wire is inclined with respect to a normal line so as to rise toward the front, the normal line being normal to a straight line connecting between an upper end of the SB main frame and the reclining shaft.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: April 19, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Koki Kunugi, Ayumu Takeda, Masatoshi Hada
  • Patent number: 11299119
    Abstract: A seatback subframe is swingable laterally of the vehicle with respect to a seatback main frame. A backrest is attached to the seatback subframe. Side airbag modules are attached to the seatback subframe at side edges.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: April 12, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Patent number: 11267425
    Abstract: A seatback subframe is swingable laterally of the vehicle with respect to a seatback main frame. A backrest is attached to the seatback subframe. Side airbag modules are attached to the seatback subframe at side edges.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: March 8, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Patent number: 11260780
    Abstract: A vehicle-mounted seat device includes an SB main frame, a backrest, an SB subframe, and one or more front-back position regulation mechanisms for regulating the position of the SB subframe in the front-back direction relative to the SB main frame. Each front-back position regulation mechanism includes a front restraining bracket secured relative to the SB main frame, a rear restraining bracket secured on the SB subframe, and a front-back wire strung between the front and rear restraining brackets. The rear restraining bracket is deformed such that its front end portion is displaced rearward relative to its end portion upon input of a load greater than a predetermined load. A maximum pulling load of the front-back wire is greater than a load that causes initial deformation of the rear restraining bracket.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: March 1, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Patent number: 11180056
    Abstract: A vehicle-mounted seat device includes an SB main frame, a backrest, a relay disk secured at the center in the width direction of the backrest, a plurality of radial wires for suspending the backrest such that the backrest can swing relative to the SB main frame with the relay disk as the center, an SB subframe capable of swinging together with the backrest, a headrest, a headrest stay extending downward from the headrest and mounted on the SB main frame so as to rotate around a rotation shaft; a pressure-receiving body secured on the headrest stay so as to be disposed behind and opposed to the relay disk; and a provisional connection mechanism for provisionally connecting the headrest stay to the SB main frame.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: November 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Patent number: 11135944
    Abstract: A seat cushion is swingable about an axis A with respect to a seat cushion support frame that is a part of a main frame. A cushion return spring that is a flat spring is disposed between the seat cushion and the seat cushion support frame so that an elastic force of the cushion return spring returns the seat cushion to a neutral position. A pair of clamp rollers that clamps the cushion return spring is disposed. The clamp rollers are movable along a longitudinal axis of the cushion return spring. Changing of a clamping position by moving the clamp rollers changes an effective length of the cushion return spring. In this way, a swingable range of the seat cushion and a force to return the seat cushion to the neutral position are changed.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Sugimoto, Kohshi Katoh, Osamu Oda, Tetsuya Nagai, Yuji Yamada, Akira Takinami, Masatoshi Hada
  • Publication number: 20210221267
    Abstract: A vehicle seat device includes an SB main frame that is joined to a seat cushion via a reclining shaft; an SB subframe that is swingable with respect to the SB main frame at least about a roll axis; a backrest that is installed on the SB subframe; and a lower support wire and an upper support wire that limit rearward movement of the SB subframe and allow movement of the SB subframe about the roll axis. A straight line connecting between the front end and the rear end of the lower support wire is inclined with respect to a normal line so as to rise toward the front, the normal line being normal to a straight line connecting between an upper end of the SB main frame and the reclining shaft.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 22, 2021
    Inventors: Tetsuya Nagai, Kohshi Katoh, Koki Kunugi, Ayumu Takeda, Masatoshi Hada
  • Patent number: 11040647
    Abstract: A headrest is supported by an upper lateral member and a lower lateral member of a seat frame. A headrest stay is inserted through each of guide slots, both of which are formed in both the upper lateral member and the lower lateral member, and an extension wire is hooked on a lower end of the headrest stay. In a rear-collision, a seat back is retreated by a force received from a seated passenger, and a tension of the tension wire is accordingly loosened, which causes the headrest to be tilted forward by an urging force of tilt springs.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: June 22, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuya Nagai, Kohshi Katoh, Koki Kunugi, Ryunosuke Seki
  • Patent number: 10988063
    Abstract: A seat for a vehicle includes a seat back frame, a first elastic member, and a second elastic member. The seat back frame includes a main frame and a sub-frame. The first elastic member and the second elastic member are configured to support the sub-frame such that the sub-frame is rotatable in a width direction of the seat and are mounted between the main frame and upper end portions of the sub-frame on both sides in the width direction of the seat. Each of the first elastic member and the second elastic member has a limit of elongation and has a characteristic in which a load that is applied to the sub-frame in a rear direction of the seat acts as tension to generate a reaction force due to the limit of elongation and does not generate the reaction force in the width direction of the seat.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 27, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kohshi Katoh, Norihisa Aoki, Kohei Yasuda
  • Patent number: 10960805
    Abstract: A locking block is fixed with respect to a seat cushion. A locking pin which can advance and retract relative to the locking block is provided on a main frame side. A V groove shape receptacle is formed on the locking block. When the locking pin is advanced into the receptacle portion, the locking pin is guided by a receiving inclined surface of the receptacle portion forming the V-shape groove, and advances to a bottom of the receptacle portion. With this process, the locking block moves in a rotational direction B, and when the locking pin engages the bottom, the seat cushion is fixed.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: March 30, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuya Nagai, Takashi Sugimoto, Osamu Oda, Kohshi Katoh, Akira Takinami, Masatoshi Hada
  • Publication number: 20210086666
    Abstract: A vehicle-mounted seat device includes an SB main frame, a backrest, an SB subframe, and one or more front-back position regulation mechanisms for regulating the position of the SB subframe in the front-back direction relative to the SB main frame. Each front-back position regulation mechanism includes a front restraining bracket secured relative to the SB main frame, a rear restraining bracket secured on the SB subframe, and a front-back wire strung between the front and rear restraining brackets. The rear restraining bracket is deformed such that its front end portion is displaced rearward relative to its end portion upon input of a load greater than a predetermined load. A maximum pulling load of the front-back wire is greater than a load that causes initial deformation of the rear restraining bracket.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 25, 2021
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Publication number: 20210086669
    Abstract: A vehicle-mounted seat device includes an SB main frame, a back rest which the back of a seated person leans on, a relay disc fixed to the back rest, a first engagement member fixed with respect to the SB main frame at a position higher than the relay disc, an upper wire for suspending and holding the back rest from the first engagement member so as to be able to swing with respect to the SB main frame with the relay disc being the center, and a height adjustment mechanism constructed to be capable of pulling in part of the upper wire, so that an amount by which the upper wire is pulled in is changed to cause a change in disposed height of the back rest with respect to the SB main frame.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 25, 2021
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Publication number: 20210061140
    Abstract: A vehicle-mounted seat device includes an SB main frame, a backrest, a relay disk secured at the center in the width direction of the backrest, a plurality of radial wires for suspending the backrest such that the backrest can swing relative to the SB main frame with the relay disk as the center, an SB subframe capable of swinging together with the backrest, a headrest, a headrest stay extending downward from the headrest and mounted on the SB main frame so as to rotate around a rotation shaft; a pressure-receiving body secured on the headrest stay so as to be disposed behind and opposed to the relay disk; and a provisional connection mechanism for provisionally connecting the headrest stay to the SB main frame.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 4, 2021
    Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
  • Publication number: 20200391635
    Abstract: A hanging type seat mounted in a vehicle comprises a seat main body for supporting an occupant from below; one or more front hanging tools which are passed across a front part of the seat main body, extended upward in the front-back direction, and attached to a structure in the vehicle; one or more rear hanging tools which are passed across a rear part of the seat main body, extended upward in the front-back direction, and attached to a structure in the vehicle; and two or more transverse hanging tools which are passed across both sides of the seat main body, extended laterally upward, and attached to a structure in the vehicle; wherein the seat main body is hung and held by the one or more front hanging tools, the one or more rear hanging tools, and the two or more transverse hanging tools.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Inventors: Kohshi Katoh, Tetsuya Nagai, Ken Motozawa, Mitsuru Asai, Takayuki Mori
  • Publication number: 20200353854
    Abstract: A headrest is supported by an upper lateral member and a lower lateral member of a seat frame. A headrest stay is inserted through each of guide slots, both of which are formed in both the upper lateral member and the lower lateral member, and an extension wire is hooked on a lower end of the headrest stay. In a rear-collision, a seat back is retreated by a force received from a seated passenger, and a tension of the tension wire is accordingly loosened, which causes the headrest to be tilted forward by an urging force of tilt springs.
    Type: Application
    Filed: April 24, 2020
    Publication date: November 12, 2020
    Inventors: Tetsuya Nagai, Kohshi Katoh, Koki Kunugi, Ryunosuke Seki