Patents by Inventor Ken Fujimoto

Ken Fujimoto 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: 11608017
    Abstract: A vehicle front body structure is provided for reliably transferring a collision load to a crash can and a front frame by preventing a bumper beam from buckling during a small overlap collision. Bending rigidity of the bumper beam in a vehicle width direction is such that 1) a bending moment generated on the bumper beam when a collision load in a direction toward a vehicle rear side is applied to an extending section, which extends outward in the vehicle width direction from a crash can fixed section, is the highest in a vehicle width direction inner end portion of the crash can fixed section on a side where the collision load is applied, and 2) the bending moment is continuously reduced as a distance from the vehicle width direction inner end portion in the vehicle width direction increases.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: March 21, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Narahara, Nobuyuki Shibutake, Yasushi Ishikawa, Yuichi Morita, Ken Fujimoto, Yusaku Yamaguchi
  • Patent number: 11591025
    Abstract: A front vehicle-body structure controls inward breakage of an apron reinforcement in the event of a small overlap collision, without increasing weight. Embodiments include a pair of right and left apron reinforcements extending in a vehicle front-rear direction; and a pair of right and left hinge pillars respectively connected to rear ends of the pair of apron reinforcements. A reinforcement outer member of the apron reinforcement includes a linear portion extending in the vehicle front-rear direction from a rear end of the apron reinforcement connected to the hinge pillar to an intermediate portion of the apron reinforcement. A horizontal bead, provided as a deformation facilitating portion to facilitate deformation toward an inside of a vehicle body, is disposed on an outer surface portion positioned on a vehicle-width-direction outer side of the linear portion, the horizontal bead having a reduced longitudinal rigidity toward a front side in the vehicle front-rear direction.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: February 28, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yasushi Ishikawa, Yuichi Morita, Yusuke Desaki, Yusuke Matsumura, Ken Fujimoto, Yusaku Yamaguchi
  • Patent number: 11591024
    Abstract: A side body structure of a vehicle can include: a hinge pillar; a front pillar that is coupled to an upper end portion of this hinge pillar via a bent section, extends upward to the rear, and is coupled to a front end portion of a roof side rail via a connected section; and an apron rein that extends forward from a position below the bent section in the hinge pillar, where the bent section can include an energy absorption section that is subjected to out-of-plane deformation in a longitudinal orthogonal direction of the front pillar and thereby can absorb collision energy when the collision energy, which can be directed rearward, is applied to the apron rein. The energy absorption section can be configured to include an outer bead section and an inner bead section respectively provided in an outer member and a lower inner member.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: February 28, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yasushi Ishikawa, Yuichi Morita, Ken Fujimoto, Yusaku Yamaguchi, Matsubara Hiroshi, Miyoshi Katsuhisa, Yokogi Yuji
  • Patent number: 11541941
    Abstract: A front vehicle-body structure is provided that is lightweight and reduces an impact load transmitted to lower limbs of an occupant. Embodiments include a transmission disposed in a vehicle front portion, a dash lower panel dividing an inside from an outside of a vehicle cabin in a vehicle rear of the transmission, and an organ type accelerator pedal disposed on a vehicle-width-direction inner side of the dash lower panel opposed to the transmission. The dash lower panel includes a panel rear portion in which the accelerator pedal is arranged, a panel front portion extending from the panel rear portion to a vehicle front upper side, and a fragile portion extending in a vehicle width direction along a boundary between the panel rear portion and the panel front portion, which is fragile compared to the panel rear portion and the panel front portion.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 3, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yuki Nagashima, Masaru Chikita, Yasushi Ishikawa, Ken Fujimoto
  • Patent number: 11441670
    Abstract: Because an EOP starts operating from when a decrease in discharge flow rate of an MOP is predicted or detected, a PL actual pressure that should be obtained with a PL command pressure set to a value for a required transmission torque is more easily maintained even when the discharge flow rate of the MOP becomes insufficient. After a lapse of a predetermined period of time from the start of operation of the EOP, the PL command pressure is temporarily set to a value higher than the value for the required transmission torque, and a regulator valve is controlled to operate to close a drain port. Therefore, the operation of the EOP in a high PL actual pressure is reduced, and a delay in response of a pressure regulating operation of the regulator valve in the process of reduction of the discharge flow rate of the MOP is reduced.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kota Fujii, Yuki Makino, Toshiaki Tamachi, Koji Hayashi, Tooru Matsubara, Ken Fujimoto, Masato Nakano
  • Publication number: 20220041220
    Abstract: A side body structure of a vehicle can include: a hinge pillar; a front pillar that is coupled to an upper end portion of this hinge pillar via a bent section, extends upward to the rear, and is coupled to a front end portion of a roof side rail via a connected section; and an apron rein that extends forward from a position below the bent section in the hinge pillar, where the bent section can include an energy absorption section that is subjected to out-of-plane deformation in a longitudinal orthogonal direction of the front pillar and thereby can absorb collision energy when the collision energy, which can be directed rearward, is applied to the apron rein. The energy absorption section can be configured to include an outer bead section and an inner bead section respectively provided in an outer member and a lower inner member.
    Type: Application
    Filed: July 16, 2021
    Publication date: February 10, 2022
    Applicant: Mazda Motor Corporation
    Inventors: Yasushi ISHIKAWA, Yuichi MORITA, Ken FUJIMOTO, Yusaku YAMAGUCHI, Matsubara HIROSHI, Miyoshi KATSUHISA, Yokogi YUJI
  • Publication number: 20220041216
    Abstract: A front vehicle-body structure controls inward breakage of an apron reinforcement in the event of a small overlap collision, without increasing weight. Embodiments include a pair of right and left apron reinforcements extending in a vehicle front-rear direction; and a pair of right and left hinge pillars respectively connected to rear ends of the pair of apron reinforcements. A reinforcement outer member of the apron reinforcement includes a linear portion extending in the vehicle front-rear direction from a rear end of the apron reinforcement connected to the hinge pillar to an intermediate portion of the apron reinforcement. A horizontal bead, provided as a deformation facilitating portion to facilitate deformation toward an inside of a vehicle body, is disposed on an outer surface portion positioned on a vehicle-width-direction outer side of the linear portion, the horizontal bead having a reduced longitudinal rigidity toward a front side in the vehicle front-rear direction.
    Type: Application
    Filed: July 19, 2021
    Publication date: February 10, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasushi ISHIKAWA, Yuichi MORITA, Yusuke DESAKI, Yusuke MATSUMURA, Ken FUJIMOTO, Yusaku YAMAGUCHI
  • Publication number: 20220001819
    Abstract: A vehicle front body structure is provided for reliably transferring a collision load to a crash can and a front frame by preventing a bumper beam from buckling during a small overlap collision. Bending rigidity of the bumper beam in a vehicle width direction is such that 1) a bending moment generated on the bumper beam when a collision load in a direction toward a vehicle rear side is applied to an extending section, which extends outward in the vehicle width direction from a crash can fixed section, is the highest in a vehicle width direction inner end portion of the crash can fixed section on a side where the collision load is applied, and 2) the bending moment is continuously reduced as a distance from the vehicle width direction inner end portion in the vehicle width direction increases.
    Type: Application
    Filed: June 23, 2021
    Publication date: January 6, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi NARAHARA, Nobuyuki SHIBUTAKE, Yasushi ISHIKAWA, Yuichi MORITA, Ken FUJIMOTO, Yusaku YAMAGUCHI
  • Publication number: 20210323611
    Abstract: A front vehicle-body structure is provided that is lightweight and reduces an impact load transmitted to lower limbs of an occupant. Embodiments include a transmission disposed in a vehicle front portion, a dash lower panel dividing an inside from an outside of a vehicle cabin in a vehicle rear of the transmission, and an organ type accelerator pedal disposed on a vehicle-width-direction inner side of the dash lower panel opposed to the transmission. The dash lower panel includes a panel rear portion in which the accelerator pedal is arranged, a panel front portion extending from the panel rear portion to a vehicle front upper side, and a fragile portion extending in a vehicle width direction along a boundary between the panel rear portion and the panel front portion, which is fragile compared to the panel rear portion and the panel front portion.
    Type: Application
    Filed: March 19, 2021
    Publication date: October 21, 2021
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yuki NAGASHIMA, Masaru CHIKITA, Yasushi ISHIKAWA, Ken FUJIMOTO
  • Publication number: 20210222768
    Abstract: Because an EOP starts operating from when a decrease in discharge flow rate of an MOP is predicted or detected, a PL actual pressure that should be obtained with a PL command pressure set to a value for a required transmission torque is more easily maintained even when the discharge flow rate of the MOP becomes insufficient. After a lapse of a predetermined period of time from the start of operation of the EOP, the PL command pressure is temporarily set to a value higher than the value for the required transmission torque, and a regulator valve is controlled to operate to close a drain port. Therefore, the operation of the EOP in a high PL actual pressure is reduced, and a delay in response of a pressure regulating operation of the regulator valve in the process of reduction of the discharge flow rate of the MOP is reduced.
    Type: Application
    Filed: September 28, 2020
    Publication date: July 22, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kota FUJII, Yuki MAKINO, Toshiaki TAMACHI, Koji HAYASHI, Tooru MATSUBARA, Ken FUJIMOTO, Masato NAKANO
  • Patent number: 10442466
    Abstract: Provided is a frame structure of a vehicle comprising a front side frame; a reinforcing member disposed in a closed cross section; and an inner bead portion which is formed from a plurality of ridgelines extending vertically on a side wall of the front side frame and projects inwardly into the closed cross section, in which the side wall has the front inclined planar portion which includes a line connecting the upper end portion of the intermediate ridgeline with the middle portion of the front ridgeline; and the rear inclined planar portion which includes a line connecting the upper end portion of the intermediate ridgeline with the middle portion of the rear ridgeline, and the reinforcing member is joined to the front proximal portion and the rear proximal portion of the intermediate ridgeline, which are the front and rear inclined planar portions.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 15, 2019
    Assignee: Mazda Motor Corporation
    Inventors: Takashi Narahara, Takahiro Aonuma, Kazuto Ishii, Hiroto Kido, Takehito Kobayashi, Ken Fujimoto, Taiga Kamikawaji
  • Patent number: 10293859
    Abstract: In a structure which comprises a hinge pillar at a side face portion of a vehicle, a front pillar connected to the hinge pillar, an apron member extending forward from a joint portion of the hinge pillar to the front pillar, and a hinge pillar reinforcement provided at the joint portion of the hinge pillar to the front pillar, a reinforcing member which connects a side face portion and an upper face portion of the hinge pillar reinforcement is provided, and a bead portion which interconnects the upper face portion and the side face portion of the hinge pillar reinforcement in a brace shape is provided and the reinforcing member.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: May 21, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Daisuke Kiyoshita, Toshiharu Ikeda, Ken Fujimoto
  • Patent number: 10183705
    Abstract: In a lower vehicle-body structure of a vehicle which comprises a suspension cross member, a side member, and first and second reinforcing members which are provided in a closed cross section formed by the side member and a slant portion, the suspension cross member being fixed by fastening a bolt which is inserted through the suspension cross member to a weld nut which is vertically fixed to a bottom plate portion of the side member, the first reinforcing member is joined to a front-side semicircular portion of a peripheral portion of the weld nut and the second reinforcing member is joined to a rear-side semicircular portion of the peripheral portion of the weld nut.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: January 22, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Narahara, Masaya Nishimoto, Takahiro Aonuma, Kazuto Ishii, Ken Fujimoto
  • Publication number: 20180251158
    Abstract: Provided is a frame structure of a vehicle comprising a front side frame; a reinforcing member disposed in a closed cross section; and an inner bead portion which is formed from a plurality of ridgelines extending vertically on a side wall of the front side frame and projects inwardly into the closed cross section, in which the side wall has the front inclined planar portion which includes a line connecting the upper end portion of the intermediate ridgeline with the middle portion of the front ridgeline; and the rear inclined planar portion which includes a line connecting the upper end portion of the intermediate ridgeline with the middle portion of the rear ridgeline, and the reinforcing member is joined to the front proximal portion and the rear proximal portion of the intermediate ridgeline, which are the front and rear inclined planar portions.
    Type: Application
    Filed: January 18, 2017
    Publication date: September 6, 2018
    Applicant: Mazda Motor Corporation
    Inventors: Takashi Narahara, Takahiro Aonuma, Kazuto Ishii, Hiroto Kido, Takehito Kobayashi, Ken Fujimoto, Taiga Kamikawaji
  • Publication number: 20180237073
    Abstract: In a structure which comprises a hinge pillar at a side face portion of a vehicle, a front pillar connected to the hinge pillar, an apron member extending forward from a joint portion of the hinge pillar to the front pillar, and a hinge pillar reinforcement provided at the joint portion of the hinge pillar to the front pillar, a reinforcing member which connects a side face portion and an upper face portion of the hinge pillar reinforcement is provided, and a bead portion which interconnects the upper face portion and the side face portion of the hinge pillar reinforcement in a brace shape is provided and the reinforcing member.
    Type: Application
    Filed: November 1, 2017
    Publication date: August 23, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Daisuke KIYOSHITA, Toshiharu IKEDA, Ken FUJIMOTO
  • Publication number: 20170225718
    Abstract: In a lower vehicle-body structure of a vehicle which comprises a suspension cross member, a side member, and first and second reinforcing members which are provided in a closed cross section formed by the side member and a slant portion, the suspension cross member being fixed by fastening a bolt which is inserted through the suspension cross member to a weld nut which is vertically fixed to a bottom plate portion of the side member, the first reinforcing member is joined to a front-side semicircular portion of a peripheral portion of the weld nut and the second reinforcing member is joined to a rear-side semicircular portion of the peripheral portion of the weld nut.
    Type: Application
    Filed: December 21, 2016
    Publication date: August 10, 2017
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi NARAHARA, Masaya NISHIMOTO, Takahiro AONUMA, Kazuto ISHII, Ken FUJIMOTO
  • Patent number: 6686508
    Abstract: Provided is a production process for high quality bisphenol A which is reduced in a sulfonic acid-containing heavy matter contained in the product and which is improved in a hue. In an after-treating step for a reaction mixed solution obtained by condensing excess phenol with acetone in the presence of an acid catalyst, a filtering step by a filter is provided at least in one step between a step for dissolving an adduct of bisphenol A and phenol by using a phenol-containing solution and a step for crystallizing and separating the above adduct from this solution.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: February 3, 2004
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Kazuyuki Hirano, Ken Fujimoto
  • Publication number: 20030120120
    Abstract: Provided is a production process for high quality bisphenol A which is reduced in a sulfonic acid-containing heavy matter contained in the product and which is improved in a hue. In an after-treating step for a reaction mixed solution obtained by condensing excess phenol with acetone in the presence of an acid catalyst, a filtering step by a filter is provided at least in one step between a step for dissolving an adduct of bisphenol A and phenol by using a phenol-containing solution and a step for crystallizing and separating the above adduct from this solution.
    Type: Application
    Filed: October 31, 2002
    Publication date: June 26, 2003
    Inventors: Kazuyuki Hirano, Ken Fujimoto