Patents by Inventor Manabu TATSUDA
Manabu TATSUDA 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: 12202548Abstract: To suppress damage on a bonnet at light collision, a vehicle-body structure includes rear-portion crush cans that perform compressive deformation when a first predetermined load is applied, and front-portion crush cans that perform compressive deformation when a second predetermined load smaller than the first predetermined load is applied. A front portion of a bonnet is positioned on a vehicle rear side of front portions of the rear-portion crush cans.Type: GrantFiled: September 21, 2022Date of Patent: January 21, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Takuma Inami, Nobuyuki Nakayama, Hiroyuki Baba, Mitsuru Wakabayashi, Koji Miyamoto, Masaki Motoki, Manabu Tatsuda
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Patent number: 12187211Abstract: To suppress deformation of a vehicle cabin by efficiently absorbing an impact load obliquely from a vehicle front side, a vehicle-body front structure includes an upper-side cross member, a lower-side cross member, upper-side impact absorption members that support respective ones of both vehicle-width-direction sides of the upper-side cross member, and lower-side impact absorption members that support respective ones of both vehicle-width-direction sides of the lower-side cross member. The upper-side impact absorption members and the lower-side impact absorption members are each positioned farther on a vehicle-width-direction outer side at a position farther on a vehicle front side.Type: GrantFiled: September 9, 2022Date of Patent: January 7, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Takuma Inami, Nobuyuki Nakayama, Hiroyuki Baba, Mitsuru Wakabayashi, Koji Miyamoto, Masaki Motoki, Manabu Tatsuda
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Publication number: 20230097956Abstract: To suppress damage on a bonnet at light collision, a vehicle-body structure includes rear-portion crush cans that perform compressive deformation when a first predetermined load is applied, and front-portion crush cans that perform compressive deformation when a second predetermined load smaller than the first predetermined load is applied. A front portion of a bonnet is positioned on a vehicle rear side of front portions of the rear-portion crush cans.Type: ApplicationFiled: September 21, 2022Publication date: March 30, 2023Applicant: Mazda Motor CorporationInventors: Takuma INAMI, Nobuyuki NAKAYAMA, Hiroyuki BABA, Mitsuru WAKABAYASHI, Koji MIYAMOTO, Masaki MOTOKI, Manabu TATSUDA
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Publication number: 20230099466Abstract: To suppress deformation of a vehicle cabin by efficiently absorbing an impact load obliquely from a vehicle front side, a vehicle-body front structure includes an upper-side cross member, a lower-side cross member, upper-side impact absorption members that support respective ones of both vehicle-width-direction sides of the upper-side cross member, and lower-side impact absorption members that support respective ones of both vehicle-width-direction sides of the lower-side cross member. The upper-side impact absorption members and the lower-side impact absorption members are each positioned farther on a vehicle-width-direction outer side at a position farther on a vehicle front side.Type: ApplicationFiled: September 9, 2022Publication date: March 30, 2023Applicant: Mazda Motor CorporationInventors: Takuma INAMI, Nobuyuki NAKAYAMA, Hiroyuki BABA, Mitsuru WAKABAYASHI, Koji MIYAMOTO, Masaki MOTOKI, Manabu TATSUDA
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Patent number: 11414132Abstract: A vehicle body structure includes a side sill having a closed cross-section portion, and a reinforcement body inside the closed cross-section portion and joined to the side sill. The reinforcement body comprises first and second reinforcement portions. The first reinforcement portion has a first bonding surface on the upper side and is joined to an inner wall of the closed cross-section portion at a portion other than the first bonding surface, and the second reinforcement portion has a second bonding surface facing the first bonding surface from above the first bonding surface, and is joined to the inner wall at a portion other than the second bonding surface. The first and second bonding surfaces are bonded together through a damping member made of an adhesive material. The first and second bonding surfaces are disposed at an inclination angle of 30 degrees or less with respect to a horizontal plane.Type: GrantFiled: September 17, 2020Date of Patent: August 16, 2022Assignee: MAZDA MOTOR CORPORATIONInventors: Keisuke Ebisumoto, Tadashi Yamazaki, Yuki Kataoka, Manabu Tatsuda
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Patent number: 11325654Abstract: A front vehicle-body structure includes a front wheel including a wheel; and a side sill that extends in a front-rear direction on a rear side of the front wheel and has side sill inner and outer portions positioned on vehicle-width-direction inner and outer sides, respectively. Vehicle-width-direction end portions of the inner and outer portions are joined at a joined portion formed by the vehicle-width-direction end portions abutting against each other. The inner portion has a higher buckling strength in the front-rear direction than the outer portion. The joined portion has a second joined portion extending inclined to the vehicle-width-direction outer side toward a rear side, and a first joined portion bent from the second joined portion, extending to a front side, and positioned on a front-end portion of the side sill closer to the vehicle-width-direction inner side than a center line of the wheel in the vehicle width direction.Type: GrantFiled: August 25, 2020Date of Patent: May 10, 2022Assignee: MAZDA MOTOR CORPORATIONInventors: Keisuke Ebisumoto, Takeshi Nakamura, Hirotaka Natsume, Yuki Kataoka, Manabu Tatsuda, Ippei Kuroda, Satoshi Nakamura
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Patent number: 11292525Abstract: A front vehicle-body structure for appropriately dispersing a collision load includes a floor panel; a side sill; a floor frame extending in a front-rear direction on a vehicle-width-direction inner side of the side sill; and a first cross member connecting the side sill and the floor frame to each other in the vehicle width direction. The side sill has a raised wall and an upper wall portion positioned on the vehicle-width-direction inner side in a cross-section orthogonally intersecting with the front-rear direction and extending in an up-down direction, a corner extending in the front-rear direction is formed between the raised wall and the upper wall portion, and a first joint member and a corner reinforcement member that reinforce the raised wall and the corner are provided at a position to which the first cross member is connected in the front-rear direction on an inner side of the side sill.Type: GrantFiled: August 27, 2020Date of Patent: April 5, 2022Assignee: MAZDA MOTOR CORPORATIONInventors: Keisuke Ebisumoto, Tadashi Yamazaki, Manabu Tatsuda, Ippei Kuroda
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Publication number: 20210094618Abstract: A vehicle body structure includes a side sill having a closed cross-section portion, and a reinforcement body inside the closed cross-section portion and joined to the side sill. The reinforcement body comprises first and second reinforcement portions. The first reinforcement portion has a first bonding surface on the upper side and is joined to an inner wall of the closed cross-section portion at a portion other than the first bonding surface, and the second reinforcement portion has a second bonding surface facing the first bonding surface from above the first bonding surface, and is joined to the inner wall at a portion other than the second bonding surface. The first and second bonding surfaces are bonded together through a damping member made of an adhesive material. The first and second bonding surfaces are disposed at an inclination angle of 30 degrees or less with respect to a horizontal plane.Type: ApplicationFiled: September 17, 2020Publication date: April 1, 2021Applicant: MAZDA MOTOR CORPORATIONInventors: Keisuke EBISUMOTO, Tadashi YAMAZAKI, Yuki KATAOKA, Manabu TATSUDA
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Publication number: 20210061366Abstract: A front vehicle-body structure includes a front wheel including a wheel; and a side sill that extends in a front-rear direction on a rear side of the front wheel and has side sill inner and outer portions positioned on vehicle-width-direction inner and outer sides, respectively. Vehicle-width-direction end portions of the inner and outer portions are joined at a joined portion formed by the vehicle-width-direction end portions abutting against each other. The inner portion has a higher buckling strength in the front-rear direction than the outer portion. The joined portion has a second joined portion extending inclined to the vehicle-width-direction outer side toward a rear side, and a first joined portion bent from the second joined portion, extending to a front side, and positioned on a front-end portion of the side sill closer to the vehicle-width-direction inner side than a center line of the wheel in the vehicle width direction.Type: ApplicationFiled: August 25, 2020Publication date: March 4, 2021Applicant: MAZDA MOTOR CORPORATIONInventors: Keisuke EBISUMOTO, Takeshi NAKAMURA, Hirotaka NATSUME, Yuki KATAOKA, Manabu TATSUDA, Ippei KURODA, Satoshi NAKAMURA
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Publication number: 20210061370Abstract: A front vehicle-body structure for appropriately dispersing a collision load includes a floor panel; a side sill; a floor frame extending in a front-rear direction on a vehicle-width-direction inner side of the side sill; and a first cross member connecting the side sill and the floor frame to each other in the vehicle width direction. The side sill has a raised wall and an upper wall portion positioned on the vehicle-width-direction inner side in a cross-section orthogonally intersecting with the front-rear direction and extending in an up-down direction, a corner extending in the front-rear direction is formed between the raised wall and the upper wall portion, and a first joint member and a corner reinforcement member that reinforce the raised wall and the corner are provided at a position to which the first cross member is connected in the front-rear direction on an inner side of the side sill.Type: ApplicationFiled: August 27, 2020Publication date: March 4, 2021Applicant: MAZDA MOTOR CORPORATIONInventors: Keisuke EBISUMOTO, Tadashi YAMAZAKI, Manabu TATSUDA, Ippei KURODA