Patents by Inventor Tadanori Hisamoto

Tadanori Hisamoto 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: 9592755
    Abstract: The time until a headrest contacts the head of an occupant in the event of a rear collision is shortened with a simple configuration. In a seat device, a stay (46) (including grommets (22)) is set with bending rigidity towards the vehicle front lower than the bending rigidity towards the vehicle rear. Accordingly, when the headrest oscillates in the event of a vehicle rear collision, the headrest is initially displaced towards the vehicle rear, however the headrest changes direction in a short time and begins to be displaced towards the vehicle front. Moreover, there is a large displacement of the headrest towards the vehicle front since the stay (46) (including the grommets (22)) has a lower bending rigidity towards the vehicle front than the bending rigidity towards the vehicle rear. The time until the headrest contacts the head (H) of the occupant can accordingly be shortened.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: March 14, 2017
    Assignee: NHK SPRING CO., LTD.
    Inventors: Masami Takayama, Atsushi Kageyama, Ken Okura, Junichi Nakano, Nozomu Munemura, Kensuke Nagai, Tadanori Hisamoto
  • Patent number: 9555724
    Abstract: A favorable appearance can be achieved using a simple configuration, even when the configuration is provided with a back shell that moves up and down relative to a back frame. In a vehicle seat 10, the back of a seated person is adapted to be supported by a movable back shell 42 that is supported so as to be capable of moving in an up-down direction relative to a back frame 30. A non-movable back shell 46 that is attached so as to be incapable of displacement relative to the back frame 30 is disposed on a back face side of the movable back shell 42, and the back frame 30 is covered by the non-movable back shell 46.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: January 31, 2017
    Assignee: NHK Spring Co., Ltd.
    Inventors: Shinji Uehara, Tadanori Hisamoto, Masumi Yoda, Tsunekazu Kanno
  • Patent number: 9403451
    Abstract: A headrest device comprising: a headrest stay that is coupled to an upper end portion of a seatback of a vehicle seat, and that supports a headrest pad; an internal structure that is embedded inside the headrest pad, that is supported from a rear by the headrest stay, and that supports a head of an occupant from the rear during a vehicle rear-on collision via a support face that is formed at a front face of the internal structure; and a forward projection portion that is configured by a portion of the headrest stay that projects forward, that is disposed at an upper side or a lower side of the support face within the headrest pad, and that suppresses the head supported by the support face from tilting backward or tilting forward by pivoting about the support face as a pivoting center.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: August 2, 2016
    Assignee: NHK SPRING CO., LTD.
    Inventors: Nozomu Munemura, Kensuke Nagai, Tadanori Hisamoto
  • Patent number: 9061621
    Abstract: A seat-cushion shell unit is configured to include a support panel provided to be movable up and down and tiltable to an arbitrary angle below a seat cushion shell, and a support pad provided between the seat cushion shell and the support panel. A front end part and a rear end part of a support panel are fixed to the seat frame, and the seat-cushion shell unit is attached to the seat frame.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: June 23, 2015
    Assignee: NHK SPRING CO., LTD.
    Inventor: Tadanori Hisamoto
  • Patent number: 9027993
    Abstract: A vehicle seat comprises: a vehicle body side member; a seat cushion having left and right side frames; left and right front links provided respectively between front end sides of the left and right side frames and the vehicle body side member, the left and right front links configure a portion of a lifter mechanism that moves the seat cushion, and one end side of the respective left and right front links is coupled to the vehicle body side member so as to be rotatable about an axis along the seat left-right direction; and a coupling member coupling together front end sides of the left and right side frames along the seat left-right direction, that is rotatable with respect to the left and right side frames about an axis along the seat left-right direction, and that is joined to other end side of the respective left and right front links.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: May 12, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventors: Nozomu Munemura, Hironobu Nakane, Ryo Nagahara, Tadanori Hisamoto
  • Publication number: 20140265504
    Abstract: A favorable appearance can be achieved using a simple configuration, even when the configuration is provided with a back shell that moves up and down relative to a back frame. In a vehicle seat 10, the back of a seated person is adapted to be supported by a movable back shell 42 that is supported so as to be capable of moving in an up-down direction relative to a back frame 30. A non-movable back shell 46 that is attached so as to be incapable of displacement relative to the back frame 30 is disposed on a back face side of the movable back shell 42, and the back frame 30 is covered by the non-movable back shell 46.
    Type: Application
    Filed: September 6, 2012
    Publication date: September 18, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Shinji Uehara, Tadanori Hisamoto, Masumi Yoda, Tsunekazu Kanno
  • Publication number: 20140132048
    Abstract: In a seat device, a stay including grommets is set with bending rigidity towards the vehicle front lower than the bending rigidity towards the vehicle rear. Moreover, there is a large displacement of the headrest towards the vehicle front since the stay including the grommets has a lower bending rigidity towards the vehicle front than the bending rigidity towards the vehicle rear. The headrest can be promptly displaced towards the side of the head of the occupant due to setting the bending rigidity of the stay including the grommets, thereby enabling the time until the headrest contacts the head of the occupant to be shortened with a simple configuration.
    Type: Application
    Filed: June 13, 2012
    Publication date: May 15, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Masami Takayama, Atsushi Kageyama, Ken Okura, Junichi Nakano, Nozomu Munemura, Kensuke Nagai, Tadanori Hisamoto
  • Publication number: 20130300166
    Abstract: A headrest device comprising: a headrest stay that is coupled to an upper end portion of a seatback of a vehicle seat, and that supports a headrest pad; an internal structure that is embedded inside the headrest pad, that is supported from a rear by the headrest stay, and that supports a head of an occupant from the rear during a vehicle rear-on collision via a support face that is formed at a front face of the internal structure; and a forward projection portion that is configured by a portion of the headrest stay that projects forward, that is disposed at an upper side or a lower side of the support face within the headrest pad, and that suppresses the head supported by the support face from tilting backward or tilting forward by pivoting about the support face as a pivoting center.
    Type: Application
    Filed: April 22, 2013
    Publication date: November 14, 2013
    Inventors: Nozomu Munemura, Kensuke Nagai, Tadanori Hisamoto
  • Publication number: 20130278030
    Abstract: A vehicle seat comprises: a vehicle body side member; a seat cushion having left and right side frames; left and right front links provided respectively between front end sides of the left and right side frames and the vehicle body side member, the left and right front links configure a portion of a lifter mechanism that moves the seat cushion, and one end side of the respective left and right front links is coupled to the vehicle body side member so as to be rotatable about an axis along the seat left-right direction; and a coupling member coupling together front end sides of the left and right side frames along the seat left-right direction, that is rotatable with respect to the left and right side frames about an axis along the seat left-right direction, and that is joined to other end side of the respective left and right front links.
    Type: Application
    Filed: April 16, 2013
    Publication date: October 24, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Nozomu Munemura, Hironobu Nakane, Ryo Nagahara, Tadanori Hisamoto
  • Patent number: 7328916
    Abstract: In a knee protection system according to the present invention, a knee protection panel is driven from a standby position surrounded by an interior member to the vehicle rear side to a knee-protecting position in front of the knees of an occupant by a drive mechanism when the vehicle is crashing, whereby the knees moving forward are protected by the knee protection panel thus driven. The drive mechanism includes a holding portion for holding the knee protection panel in such a manner that the knee protection panel is moved rearward. Engagement portions are provided, respectively, at locations where the holding portion and the knee protection panel connect with each other in such a manner as to be brought into engagement with each other.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: February 12, 2008
    Assignees: Toyota Jidosha Kabushiki Kaisha, NHK Spring Co., Ltd.
    Inventors: Hiroyuki Tajima, Takahiko Sato, Akiyoshi Nagano, Masakazu Hashimoto, Osamu Fukawatase, Takeaki Kato, Hiroyoshi Yamaguchi, Tadanori Hisamoto, Shinichi Horibata
  • Patent number: 7152881
    Abstract: An actuator of an active knee bolster is provided with a drive force generation device and a one way lock mechanism that is disposed in a vicinity of an operation end of the drive force generation device. The one way lock mechanism is configured such that, if attempted movement of a piston member in an inward insertion direction occurs, respective engagement portions are moved to a taper portion by urging force of a spring, whereby the engagement portions are abutted against an external periphery surface of the piston member such that the piston member and the engagement portions are fixed. Accordingly, as a result of the one way lock mechanism, a main body of the active knee bolster that has been moved to a restraining position cannot return in a vehicle forward direction, and thus it is possible to generate a substantial lower limb restraining force that restrains a lower limb of an occupant.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: December 26, 2006
    Assignees: Toyota Jidosha Kabushiki Kaisha, NHK Spring Co., Ltd.
    Inventors: Osamu Fukawatase, Takeaki Kato, Hiroyoshi Yamaguchi, Tadanori Hisamoto, Shinichi Horibata
  • Publication number: 20050218641
    Abstract: In a knee protection system according to the present invention, a knee protection panel is driven from a standby position surrounded by an interior member to the vehicle rear side to a knee-protecting position in front of the knees of an occupant by a drive mechanism when the vehicle is crashing, whereby the knees moving forward are protected by the knee protection panel thus driven. The drive mechanism includes a holding portion for holding the knee protection panel in such a manner that the knee protection panel is moved rearward. Engagement portions are provided, respectively, at locations where the holding portion and the knee protection panel connect with each other in such a manner as to be brought into engagement with each other.
    Type: Application
    Filed: March 22, 2005
    Publication date: October 6, 2005
    Inventors: Hiroyuki Tajima, Takahiko Sato, Akiyoshi Nagano, Masakazu Hashimoto, Osamu Fukawatase, Takeaki Kato, Hiroyoshi Yamaguchi, Tadanori Hisamoto, Shinichi Horibata
  • Publication number: 20040169363
    Abstract: An actuator of an active knee bolster is provided with a drive force generation device and a one way lock mechanism that is disposed in a vicinity of an operation end of the drive force generation device. The one way lock mechanism is configured such that, if attempted movement of a piston member in an inward insertion direction occurs, respective engagement portions are moved to a taper portion by urging force of a spring, whereby the engagement portions are abutted against an external periphery surface of the piston member such that the piston member and the engagement portions are fixed. Accordingly, as a result of the one way lock mechanism, a main body of the active knee bolster that has been moved to a restraining position cannot return in a vehicle forward direction, and thus it is possible to generate a substantial lower limb restraining force that restrains a lower limb of an occupant.
    Type: Application
    Filed: February 20, 2004
    Publication date: September 2, 2004
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NHK SPRING CO., LTD.
    Inventors: Osamu Fukawatase, Takeaki Kato, Hiroyoshi Yamaguchi, Tadanori Hisamoto, Shinichi Horibata