Patents by Inventor Atsushi Nakashima

Atsushi Nakashima 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: 11958428
    Abstract: The present invention is an airbag device equipped in a vehicle seat having a seat cushion forming a seat surface and a seatback forming a backrest, containing: an inflator; and an airbag that is stowed in the seatback and deployed by the expansion gas discharged from the inflator. The airbag includes a pair of left and right side chambers that deploy from the side parts of the seatback forward and an upper chamber that is provided continuously with the side chambers and deploys above the head of the occupant. The airbag, from a state of being spread out before stowing, is rolled or folded and compressed in a long rod shape in a direction intersecting a longitudinal direction. The location corresponding to the upper chamber of the long rod-shaped airbag is stowed in a stowing part at the rear surface of the headrest at the upper part of the seatback.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: April 16, 2024
    Assignee: Autoliv Development AB
    Inventors: Takayuki Shimizu, Atsushi Nakashima
  • Publication number: 20240010157
    Abstract: An airbag device includes a driver airbag cushion and a curtain airbag cushion. The curtain airbag cushion includes a first seam portion formed so as to extend vertically within a range in which the driver airbag cushion is projected outward in the vehicle width direction, a first chamber expanding so as to be thicker in the vehicle width direction than the first seam portion on the front side of the first seam portion, and a second chamber expanding so as to be thicker in the vehicle width direction than the first seam portion on the rear side of the first seam portion. The driver airbag cushion is expanded and deployed in a state separated from the first chamber while being in contact with a curved portion of the second chamber that is curved toward the first seam portion.
    Type: Application
    Filed: August 10, 2021
    Publication date: January 11, 2024
    Inventor: Atsushi NAKASHIMA
  • Patent number: 11858448
    Abstract: An airbag device equipped in a vehicle seat. The vehicle seat has a structure in which a seat frame is arranged with left and right sides inside the seat back. The airbag device according to the present invention includes: an inflator that is secured to the side of the seat frame of the vehicle seat and an airbag that is stowed inside the seat back in an elongated and compressed state and is expanded and deployed by the expansion gas discharged from the inflator. The airbag in the stowed state is arranged along the seat frame, and includes a lower portion area lower than the inflator and an upper portion area above the inflator. The lower portion area is arranged inside the seat frame, and the upper portion area is arranged outside the seat frame.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: January 2, 2024
    Assignee: Autoliv Development AB
    Inventors: Takayuki Shimizu, Atsushi Nakashima
  • Patent number: 11787360
    Abstract: A vehicle seat includes a seat back, an inflator, and a side airbag. The side airbag includes a head chamber housed along an upper frame of the seat back and configured to inflate and deploy between a shoulder belt and a head in response to supply of gas from the inflator in an event of side collision. The head chamber is housed while being folded in a seat up-and-down direction to reduce a vertical width and then rolled from a front end in a seat fore-and-aft direction.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: October 17, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUTOLIV DEVELOPMENT AB
    Inventors: Yuto Ota, Kazuhiro Kawamura, Yuta Arai, Atsushi Nakashima, Takayuki Shimizu
  • Patent number: 11766985
    Abstract: An airbag device installed in a vehicle seat having a seat cushion forming the seat surface and a seatback forming the backrest, and an inflator that generates expansion gas and an airbag that is deployed by the expansion gas released from said inflator. The airbag includes a pair of left and right side chambers that deploy forward from the side of the seatback and primarily protect the occupant's waist to shoulders, and an upper chamber that is continuous with the side chambers, deploys forward above the side chambers, and mainly protects the occupant's neck and head. On the left and right sides of the seatback, the location on the side where the seatbelt crosses near the shoulder is the first side, and the side opposite to said first side is the second side. A recess is formed on the first side of the airbag where the seatbelt fits.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: September 26, 2023
    Assignee: Autoliv Development AB
    Inventors: Takayuki Shimizu, Atsushi Nakashima
  • Publication number: 20230242061
    Abstract: The present invention is an airbag device equipped in a vehicle seat having a seat cushion forming a seat surface and a seatback forming a backrest, containing: an inflator; and an airbag that is stowed in the seatback and deployed by expansion gas discharged from the inflator. The airbag includes a pair of left and right side chambers that deploy from the side parts of the seatback forward and an upper chamber that is provided continuously with the side chambers and deploys above the head of the occupant. The airbag, from a state of being spread out before stowing, is rolled or folded and compressed in a long rod shape in a direction intersecting a longitudinal direction. The location corresponding to the upper chamber of the long rod-shapedairbag is stowed in a stowing part at the rear surface of the headrest at the upper part of the seatback.
    Type: Application
    Filed: September 2, 2020
    Publication date: August 3, 2023
    Inventors: Takayuki SHIMIZU, Atsushi NAKASHIMA
  • Publication number: 20230138018
    Abstract: A vehicle seat includes a seat back, an inflator, and a side airbag. The side airbag includes a head chamber housed along an upper frame of the seat back and configured to inflate and deploy between a shoulder belt and a head in response to supply of gas from the inflator in an event of side collision. The head chamber is housed while being folded in a seat up-and-down direction to reduce a vertical width and then rolled from a front end in a seat fore-and-aft direction.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 4, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUTOLIV DEVELOPMENT AB
    Inventors: Yuto OTA, Kazuhiro KAWAMURA, Yuta ARAI, Atsushi NAKASHIMA, Takayuki SHIMIZU
  • Publication number: 20230069779
    Abstract: An airbag device equipped in a vehicle seat. The vehicle seat has a structure in which a seat frame is arranged with left and right sides inside the seat back. The airbag device according to the present invention includes: an inflator that is secured to the side of the seat frame of the vehicle seat and an airbag that is stowed inside the seatbag [sic] in an elongated and compressed state and is expanded and deployed by the expansion gas discharged from the inflator. The airbag in the stowed state is arranged along the seat frame, and includes a lower portion area lower than the inflator and an upper portion area above the inflator. The lower portion area is arranged inside the seat frame, and the upper portion area is arranged outside the seat frame.
    Type: Application
    Filed: January 20, 2021
    Publication date: March 2, 2023
    Inventors: Takayuki SHIMIZU, Atsushi NAKASHIMA
  • Publication number: 20230034054
    Abstract: An airbag device installed in a vehicle seat having a seat cushion forming a seat surface and a seatback forming a backrest, being provided with an inflator stowed in one side portion of the seatback that generates inflation gas, and an airbag stowed in the seatback in a rolled or folded state that deploys from one side portion by the inflator releasing the inflation gas. The airbag deploys toward the front of the seatback and includes an upper chamber region for protecting at least around the head and neck of the occupant and a lower chamber region for protecting mainly from the waist to the shoulders of the occupant.
    Type: Application
    Filed: January 14, 2021
    Publication date: February 2, 2023
    Inventors: Takayuki SHIMIZU, Atsushi NAKASHIMA, Yutaka NAKAJIMA
  • Publication number: 20220379833
    Abstract: The present invention is an airbag device installed in a vehicle seat having a seat cushion forming the seat surface and a seatback forming the backrest, a pair of inflators stowed in the left and right side portions of said seatback and generating expansion gas, and an airbag stowed in said seatback in a rolled or folded state and deployed by the expansion gas released from said inflators. The airbag is configured to include a pair of left and right side chambers that deploy from the side of the seatback toward the front and restrain movement of at least the waist to the shoulders of an occupant, and a connection part that connects the pair of side chambers and is positioned above the head of the occupant when the airbag is deployed.
    Type: Application
    Filed: August 5, 2020
    Publication date: December 1, 2022
    Inventors: Takayuki SHIMIZU, Atsushi NAKASHIMA
  • Publication number: 20220289134
    Abstract: An airbag device installed in a vehicle seat having a seat cushion forming the seat surface and a seatback forming the backrest, and an inflator that generates expansion gas and an airbag that is deployed by the expansion gas released from said inflator. The airbag includes a pair of left and right side chambers that deploy forward from the side of the seatback and primarily protect the occupant's waist to shoulders, and an upper chamber that is continuous with the side chambers, deploys forward above the side chambers, and mainly protects the occupant's neck and head. On the left and right sides of the seatback, the location on the side where the seatbelt crosses near the shoulder is the first side, and the side opposite to said first side is the second side. A recess is formed on the first side of the airbag where the seatbelt fits.
    Type: Application
    Filed: June 30, 2020
    Publication date: September 15, 2022
    Inventors: Takayuki SHIMIZU, Atsushi NAKASHIMA
  • Patent number: 11338759
    Abstract: [Problem] To expand and deploy a hood-shaped airbag in a reliably sandwiched condition between the top of a shoulder of a seated occupant and a seatbelt in a normal set condition during a collision, and reduce injury to the occupant by a device other than an airbag such as a seatbelt or the like. [Resolution Means] An airbag device 11 contains an airbag 12 and inflator 13 integrally covering the head 2a and a side portion of a seated occupant 2. The airbag 12 in a flat condition prior to folding has a plurality of chambers 12c demarcated in a longitudinal direction. The chamber 12c has a head protecting chamber 12ca stored in an upper portion of a backrest portion 1b of a seat 1 and a pair of side protecting chambers 12cb stored in opposing positions separated in a vehicle width direction on both left and right sides of the backrest portion 1b.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: May 24, 2022
    Assignee: Autoliv Development AB
    Inventors: Yutaka Nakajima, Atsushi Nakashima, Takayuki Shimizu
  • Patent number: 11260819
    Abstract: An airbag apparatus equipped in a vehicle seat having a seat cushion that forms a seating surface and a seat back that forms a backrest includes: an inflator that generates inflation gas; and an airbag housed within at least the seat back and deployed by inflation gas released from the inflator. The airbag includes a pair of left and right side chambers that deploy towards the front from a side portion of the seat back and an upper chamber that deploys above the head of a passenger. The airbag is rolled in a direction that intersects the longitudinal direction from a flat unfolded state prior to being housed or folded to be compressed into a long bar shape. A folded portion is formed by folding at least a location corresponding to the upper chamber of the long bar shaped airbag to house the folded portion above the seat back.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: March 1, 2022
    Assignee: Autoliv Development AB
    Inventors: Takayuki Shimizu, Atsushi Nakashima
  • Publication number: 20210039579
    Abstract: [Problem] To provide an airbag apparatus that may reliably restrain a passenger regardless of the posture of the passenger seated in a seat. [Solution] An airbag apparatus equipped in a vehicle seat having a seat cushion that forms a seating surface and a seat back that forms a backrest, comprising: an inflator that generates inflation gas; and an airbag housed within at least the seat back and deployed by inflation gas released from the inflator. The airbag includes a pair of left and right side chambers that deploy towards the front from a side portion of the seat back and an upper chamber that deploys above the head of a passenger. The airbag is rolled in a direction that intersects the longitudinal direction from a flat unfolded state prior to being housed or folded to be compressed into a long bar shape. A folded portion is formed by folding at least a location corresponding to the upper chamber of the long bar shaped airbag to house the folded portion above the seat back.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 11, 2021
    Inventors: Takayuki SHIMIZU, Atsushi NAKASHIMA
  • Publication number: 20210039581
    Abstract: [Problem] To expand and deploy a hood-shaped airbag in a reliably sandwiched condition between the top of a shoulder of a seated occupant and a seatbelt in a normal set condition during a collision, and reduce injury to the occupant by a device other than an airbag such as a seatbelt or the like. [Resolution Means] An airbag device 11 contains an airbag 12 and inflator 13 integrally covering the head 2a and a side portion of a seated occupant 2. The airbag 12 in a flat condition prior to folding has a plurality of chambers 12c demarcated in a longitudinal direction. The chamber 12c has a head protecting chamber 12ca stored in an upper portion of a backrest portion 1b of a seat 1 and a pair of side protecting chambers 12cb stored in opposing positions separated in a vehicle width direction on both left and right sides of the backrest portion 1b.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 11, 2021
    Inventors: Yutaka NAKAJIMA, Atsushi NAKASHIMA, Takayuki SHIMIZU
  • Patent number: 10576775
    Abstract: Provided is a knock type writing instrument provided with a simple mechanism allowing a stable fretting operation or the like. A knock type writing instrument 1 is provided with: a shaft cylinder 2; a refill 5 arranged inside the shaft cylinder 2; a spring 6 biasing the refill 5 backward; an operation part 20 pressed forward against a biasing force of the spring 6 in a knocking operation; and a main rotor 30, and is switchable between a writing state and a non-writing state with the knocking operation. The knock type writing instrument 1 is further provided with: a knock locking member 50 movable forward and backward inside the shaft cylinder 2 due to gravity; and a locking part 60 provided on a side of the shaft cylinder 2 and capable of being locked with the knock locking member 50. When a front end of the shaft cylinder 2 is directed upward, the knock locking member 50 moves backward to be locked with the locking part 60 to prevent forward movement of the operation part 20.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: March 3, 2020
    Assignee: Mitsubishi Pencil Company, Limited
    Inventors: Yoshiharu Namiki, Kazuhiko Furukawa, Yusuke Nakamura, Kazuhiko Takanashi, Atsushi Nakashima, Yoshihiro Manta
  • Patent number: 10214173
    Abstract: A curtain airbag capable of applying tension in a vertical direction to improve occupant ejection mitigation performance. The curtain airbag is housed in an upper portion of a side surface inside a vehicle cabin and deployed along the side surface. The curtain airbag includes: a main chamber having a protection area for the occupant, and receiving an inflation gas and being inflated along a side window of a vehicle; a first chamber that overlaps an upper edge of the side window of the vehicle, the first chamber extends by being deployed toward an upper side of the main chamber along the upper portion of the side surface inside the vehicle cabin. The main chamber includes a second chamber positioned in a below portion of the first chamber to overlap the vehicle beltline upon deployment.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: February 26, 2019
    Assignee: AUTOLIV DEVELOPMENT AB
    Inventors: Teruyuki Asada, Takayoshi Takeuchi, Atsushi Nakashima, Yosuke Shimizu
  • Publication number: 20180333980
    Abstract: Provided is a knock type writing instrument provided with a simple mechanism allowing a stable fretting operation or the like. A knock type writing instrument 1 is provided with: a shaft cylinder 2; a refill 5 arranged inside the shaft cylinder 2; a spring 6 biasing the refill 5 backward; an operation part 20 pressed forward against a biasing force of the spring 6 in a knocking operation; and a main rotor 30, and is switchable between a writing state and a non-writing state with the knocking operation. The knock type writing instrument 1 is further provided with: a knock locking member 50 movable forward and backward inside the shaft cylinder 2 due to gravity; and a locking part 60 provided on a side of the shaft cylinder 2 and capable of being locked with the knock locking member 50. When a front end of the shaft cylinder 2 is directed upward, the knock locking member 50 moves backward to be locked with the locking part 60 to prevent forward movement of the operation part 20.
    Type: Application
    Filed: December 9, 2015
    Publication date: November 22, 2018
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Yoshiharu NAMIKI, Kazuhiko FURUKAWA, Yusuke NAKAMURA, Kazuhiko TAKANASHI, Atsushi NAKASHIMA, Yoshihiro MANTA
  • Patent number: 10093269
    Abstract: A passenger protecting device 10 for a vehicle has: a side airbag portion 20 that is accommodated at an interior of a side support portion 14B, and that, by receiving a supply of gas and inflating at a time of an oblique side collision of a vehicle, causes the side support portion 14B to bulge-out toward the seat upper side; and a seat cushion airbag portion 22 that is accommodated at an interior of the seat portion 14A, and that, by receiving a supply of gas and inflating at a time of an oblique side collision of the vehicle, causes the seat portion 14A to bulge-out toward the seat upper side and raises the femoral region D of the passenger P, and whose inflation is completed later than the side airbag portion 20.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: October 9, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ippei Kobayashi, Mitsuyoshi Ohno, Atsushi Nakashima
  • Patent number: 10065594
    Abstract: An airbag device, comprising: a gas generation device that is operable to generate gas; and an airbag that includes: a first chamber portion that is disposed at a vehicle front side of a vehicle seat on which a vehicle occupant sits, the first chamber portion being inflated due to gas generated by the gas generation device being supplied into the first chamber portion, a second chamber portion that is inflated due to gas generated by the gas generation device being supplied into the second chamber portion and that is disposed adjacent to the first chamber portion in a vehicle width direction, and a connection portion.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 4, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Osamu Fukawatase, Atsushi Nakashima