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).
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Patent number: 10793034Abstract: A vehicle seat includes a seatback. The seatback includes a main frame and a sub-frame suspended from the main frame. The sub-frame is configured to swivel with respect to the main frame. The sub-frame includes a first lateral member, a second lateral member separated from the first lateral member by a distance, and a reinforcement member coupling the first lateral member with the second lateral member.Type: GrantFiled: March 15, 2017Date of Patent: October 6, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Carlos David Gonzalez Uribe, Kohshi Katoh, Hikaru Sato
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Publication number: 20200269735Abstract: 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: ApplicationFiled: February 20, 2020Publication date: August 27, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tetsuya NAGAI, Kohshi KATOH, Takashi SUGIMOTO, Osamu ODA, Ryunosuke SEKI, Kenji IIDA, AKira TAKINAMI, Masatoshi HADA
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Patent number: 10682938Abstract: A vehicle seat in which a net structure may be attached easily to a frame while ensuring rigidity of the seatback frame. In the vehicle seat, a net structure is drawn within a seat frame. The seat frame includes: a net frame in which the net structure is drawn, a receiving frame formed integrally with the seat frame, and a fastening mechanism that fastens the net frame to the receiving frame.Type: GrantFiled: October 12, 2018Date of Patent: June 16, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kohshi Katoh
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Publication number: 20200139849Abstract: 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: ApplicationFiled: October 30, 2019Publication date: May 7, 2020Inventors: Takashi Sugimoto, Kohshi Katoh, Osamu Oda, Tetsuya Nagai, Yuji Yamada, Akira Takinami, Masatoshi Hada
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Publication number: 20200139916Abstract: 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: ApplicationFiled: October 29, 2019Publication date: May 7, 2020Inventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
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Publication number: 20200114795Abstract: 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: ApplicationFiled: October 9, 2019Publication date: April 16, 2020Inventors: Tetsuya Nagai, Takashi Sugimoto, Osamu Oda, Kohshi Katoh, Akira Takinami, Masatoshi Hada
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Publication number: 20200108749Abstract: 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: ApplicationFiled: October 2, 2019Publication date: April 9, 2020Applicant: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Nagai, Kohshi Katoh, Takashi Sugimoto, Osamu Oda, Masatoshi Hada
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Publication number: 20200086776Abstract: 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: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Inventors: Tetsuya Nagai, Takashi Sugimoto, Osamu Oda, Kohshi Katoh, Akira Takinami, Masatoshi Hada
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Patent number: 10391902Abstract: A seatback of a vehicle seat includes a seatback frame and a backrest attached to the seatback frame. The backrest includes a first supporting area configured to receive a load of a shoulder of the occupant, and a second supporting area configured to receive a load of a spine area of the occupant. Support stiffness in the first supporting area for a vertical load is lower than that in the second supporting area. Support stiffness in the second supporting area for a shearing load is higher than that in the first supporting area.Type: GrantFiled: March 15, 2017Date of Patent: August 27, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Carlos David Gonzalez Uribe, Kohshi Katoh, Hikaru Sato
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Publication number: 20190255976Abstract: 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: ApplicationFiled: February 15, 2019Publication date: August 22, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kohshi KATOH, Norihisa AOKI, Kohei YASUDA
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Patent number: 10328825Abstract: A vehicle seat comprises a seat cushion frame configuring a frame member of a seat cushion, and a seat unit that is supported by the seat cushion frame and on which an occupant sits, that has a higher seating face rigidity in a seat front-rear direction than a seating face rigidity in a seat width direction, and that has the seating face rigidity in the seat width direction set lower at a seat front-rear direction rear side than at a seat front-rear direction front side.Type: GrantFiled: February 15, 2018Date of Patent: June 25, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu Hamabe, Kohshi Katoh, Eishi Takeuchi
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Publication number: 20190111816Abstract: A vehicle seat in which a net structure may be attached easily to a frame while ensuring rigidity of the seatback frame. In the vehicle seat, a net structure is drawn within a seat frame. The seat frame includes: a net frame in which the net structure is drawn, a receiving frame formed integrally with the seat frame, and a fastening mechanism that fastens the net frame to the receiving frame.Type: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Applicant: Toyota Jidosha Kabushiki KaishaInventor: Kohshi KATOH
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Patent number: 10239421Abstract: A vehicle seat in which a swiveling motion of a sub-frame is restricted only to a desirable direction is provided. A sub-frame is suspended from a seatback frame. A first elastic member connects a right upper end of the sub-frame to the seat back frame, and a second elastic member a left upper end of the sub-frame to the seat back frame. A universal joint mechanism connects a lower lateral portion of the sub-frame to a lateral member of the seat back frame.Type: GrantFiled: September 13, 2017Date of Patent: March 26, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kohshi Katoh, Carlos David Gonzalez Uribe, Yasuhiro Suwa
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Patent number: 10202053Abstract: A vehicle seat in which a thickness of a seatback is reduced is provided. A supporting mechanism comprises a pivot shaft, a hub member, and a reinforcement shaft. A front end of a seat base frame is connected to a lower frame through a first joint in a pivotal manner. One end of a pivot shaft is connected to a rear end of the seat base frame in a pivotal manner, and other end of the pivot shaft is connected to a hub through a second joint in a pivotal manner. The pivot shaft and the reinforcement shaft are overlapped in a width direction of the vehicle at least partially.Type: GrantFiled: July 21, 2017Date of Patent: February 12, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Carlos David Gonzalez Uribe, Kohshi Katoh
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Publication number: 20180170214Abstract: A vehicle seat comprises a seat cushion frame configuring a frame member of a seat cushion, and a seat unit that is supported by the seat cushion frame and on which an occupant sits, that has a higher seating face rigidity in a seat front-rear direction than a seating face rigidity in a seat width direction, and that has the seating face rigidity in the seat width direction set lower at a seat front-rear direction rear side than at a seat front-rear direction front side.Type: ApplicationFiled: February 15, 2018Publication date: June 21, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu HAMABE, Kohshi KATOH, Eishi TAKEUCHI
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Patent number: 9975458Abstract: A vehicle seat apparatus includes a seat portion, a seatback arranged on a rear side of the seat portion, a seat portion supporting mechanism that supports the seat portion such that a right side and a left side of the seat portion are able to move relative to one another in a vertical direction of the vehicle seat apparatus, and a seat portion restoring force generating mechanism that generates a restoring force that returns the seat portion to an original position when the seat portion rotates.Type: GrantFiled: January 7, 2014Date of Patent: May 22, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Eishi Takeuchi, Kohshi Katoh, Koki Kunugi
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Patent number: 9950646Abstract: A vehicle seat of the present invention includes a seatback frame, a backrest section that supports a back of an occupant, a swivel-coupling section that couples the backrest section and that is capable of swiveling with respect to the seatback frame in a seat width direction, and an outer periphery support section that couples plural locations at an outer peripheral side of the backrest section to the seatback frame, that supports the backrest section with respect to the seatback frame, and that permits the backrest section to swivel.Type: GrantFiled: June 19, 2015Date of Patent: April 24, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kohshi Katoh, Eishi Takeuchi, Tsutomu Hamabe, Yasuhiro Suwa
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Patent number: 9937820Abstract: A vehicle seat comprises a seat cushion frame configuring a frame member of a seat cushion, and a seat unit that is supported by the seat cushion frame and on which an occupant sits, that has a higher seating face rigidity in a seat front-rear direction than a seating face rigidity in a seat width direction, and that has the seating face rigidity in the seat width direction set lower at a seat front-rear direction rear side than at a seat front-rear direction front side.Type: GrantFiled: July 6, 2015Date of Patent: April 10, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsutomu Hamabe, Kohshi Katoh, Eishi Takeuchi
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Publication number: 20180072187Abstract: A vehicle seat in which a swiveling motion of a sub-frame is restricted only to a desirable direction is provided. A sub-frame is suspended from a seatback frame. A first elastic member connects a right upper end of the sub-frame to the seat back frame, and a second elastic member a left upper end of the sub-frame to the seat back frame. A universal joint mechanism connects a lower lateral portion of the sub-frame to a lateral member of the seat back frame.Type: ApplicationFiled: September 13, 2017Publication date: March 15, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kohshi KATOH, Carlos David GONZALEZ URIBE, Yasuhiro SUWA
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Publication number: 20180022238Abstract: A vehicle seat in which a thickness of a seatback is reduced is provided. A supporting mechanism comprises a pivot shaft, a hub member, and a reinforcement shaft. A front end of a seat base frame is connected to a lower frame through a first joint in a pivotal manner. One end of a pivot shaft is connected to a rear end of the seat base frame in a pivotal manner, and other end of the pivot shaft is connected to a hub through a second joint in a pivotal manner. The pivot shaft and the reinforcement shaft are overlapped in a width direction of the vehicle at least partially.Type: ApplicationFiled: July 21, 2017Publication date: January 25, 2018Inventors: Carlos David GONZALEZ URIBE, Kohshi KATOH