Patents by Inventor Kazutoyo Fujikawa
Kazutoyo Fujikawa 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: 11767065Abstract: A vehicle floor assembly having a floor panel and a pair of elongated members disposed along opposing sides of the floor panel. A central tunnel extends longitudinally between the pair of elongated members and has an upper surface elevated vertically from a planar extent of the floor panel. A crossmember beam is coupled to and spans between the pair of longitudinal members. The crossmember beam has a cross-sectional shape extending continuously along a length of the crossmember beam. The crossmember beam includes a curved shape along at least a section of the length of the crossmember beam that positions a lower surface of the crossmember beam above the upper surface of the central tunnel.Type: GrantFiled: March 31, 2022Date of Patent: September 26, 2023Assignee: Shape Corp.Inventors: Tomohisa Honda, Kazutoyo Fujikawa
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Publication number: 20230016200Abstract: A rocker component for a vehicle includes a tubular beam having a transverse cross-sectional shape extending continuously along a length of the tubular beam. The transverse cross-sectional shape of the tubular beam includes an inboard portion that has an inboard height dimension and an outboard portion that has an outboard height dimension. The outboard height dimension is less than the inboard height dimension. The transverse cross-sectional shape of the tubular beam also includes an upper planar wall and a lower planar wall that connect linearly between the respective upper and lower ends of the inboard portion and the outboard portion to form a tapered shape.Type: ApplicationFiled: July 19, 2022Publication date: January 19, 2023Inventors: Takashi Matsui, Kazutoyo Fujikawa, Matthew Kuipers, Zehua Qin
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Publication number: 20220315117Abstract: A vehicle floor assembly having a floor panel and a pair of elongated members disposed along opposing sides of the floor panel. A central tunnel extends longitudinally between the pair of elongated members and has an upper surface elevated vertically from a planar extent of the floor panel. A crossmember beam is coupled to and spans between the pair of longitudinal members. The crossmember beam has a cross-sectional shape extending continuously along a length of the crossmember beam. The crossmember beam includes a curved shape along at least a section of the length of the crossmember beam that positions a lower surface of the crossmember beam above the upper surface of the central tunnel.Type: ApplicationFiled: March 31, 2022Publication date: October 6, 2022Inventors: Tomohisa Honda, Kazutoyo Fujikawa
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Publication number: 20220297758Abstract: An interlocking beam assembly for a frame assembly of a vehicle that includes an upper beam and a lower beam. The upper beam includes an upper hollow section integrally formed with a lower hollow section and a common wall shared by the upper and lower hollow sections. A notch is disposed in the lower hollow section of the upper beam at a select portion along a length of the upper beam. The notch is defined at cut edges along a bottom wall and side walls of the lower hollow section. A lower beam is configured to extend substantially perpendicular to the upper beam and attach in the notch in the upper beam between the cut edges of the side walls in a manner that bridges load paths across the notch in the upper beam.Type: ApplicationFiled: March 17, 2022Publication date: September 22, 2022Inventors: Kazutoyo Fujikawa, Tadashi Chikami
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Patent number: 9415805Abstract: A front vehicle body structure has a member provided at a side section of a vehicle body along a vehicle-body front-rear direction, a powertrain disposed on an inner side of the vehicle body relative to the member and fixed to a front section of the vehicle body, and a load transmission member provided on the member and configured to come into contact with one end portion, in a vehicle width direction, of the powertrain when receiving a collision load applied by an obstacle from a front side of the vehicle body, and to transmit the load from the obstacle to the powertrain in a state of being sandwiched between the obstacle and the powertrain. The load transmission member has a concave curved surface formed in a surface thereof along the vehicle-body front-rear direction. The concave curved surface is elastically deformed in the state of being sandwiched between the obstacle and the powertrain and receiving the load.Type: GrantFiled: March 20, 2014Date of Patent: August 16, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Kazutoyo Fujikawa, Takamasa Ono, Hajime Kumamaru
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Publication number: 20160023681Abstract: A front vehicle body structure has a member provided at a side section of a vehicle body along a vehicle-body front-rear direction, a powertrain disposed on an inner side of the vehicle body relative to the member and fixed to a front section of the vehicle body, and a load transmission member provided on the member and configured to come into contact with one end portion, in a vehicle width direction, of the powertrain when receiving a collision load applied by an obstacle from a front side of the vehicle body, and to transmit the load from the obstacle to the powertrain in a state of being sandwiched between the obstacle and the powertrain. The load transmission member has a concave curved surface formed in a surface thereof along the vehicle-body front-rear direction. The concave curved surface is elastically deformed in the state of being sandwiched between the obstacle and the powertrain and receiving the load.Type: ApplicationFiled: March 20, 2014Publication date: January 28, 2016Applicant: Nissan Motor Co., Ltd.Inventors: Kazutoyo Fujikawa, Takamasa Ono, Hajime Kumamaru
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Patent number: 7578545Abstract: In a body frame structure for an automotive vehicle, the amount of the bending and deforming of a longitudinal frame member in the rear direction can be controlled and the amount of the collision energy absorption during a frontal collision can be increased. A kick-up portion that bends and deforms the front portion upwardly during the application of the collision load is provided between a front portion and a rear portion of the closed section of the longitudinal frame member, which extend in the longitudinal direction of the vehicle. A deformation guide member, which constrains the longitudinal frame member to bend and deform in the lateral direction of the vehicle at the front portion by colliding portions of the deformation guide member with each other due to the applied frontal collision load, is provided inside the closed section of the kick-up portion of the longitudinal frame members.Type: GrantFiled: October 12, 2005Date of Patent: August 25, 2009Assignee: Nissan Motor Co. Ltd.Inventor: Kazutoyo Fujikawa
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Publication number: 20080272619Abstract: In a body frame structure for an automotive vehicle, the amount of the bending and deforming of a longitudinal frame member in the rear direction can be controlled and the amount of the collision energy absorption during a frontal collision can be increased. A kick-up portion that bends and deforms the front portion upwardly during the application of the collision load is provided between a front portion and a rear portion of the closed section of the longitudinal frame member, which extend in the longitudinal direction of the vehicle. A deformation guide member, which constrains the longitudinal frame member to bend and deform in the lateral direction of the vehicle at the front portion by colliding portions of the deformation guide member with each other due to the applied frontal collision load, is provided inside the closed section of the kick-up portion of the longitudinal frame members.Type: ApplicationFiled: October 12, 2005Publication date: November 6, 2008Inventor: Kazutoyo Fujikawa