Patents by Inventor Sakayu Terada
Sakayu Terada 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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Publication number: 20240166272Abstract: A vehicle body comprises a floor lower frame having front-and-rear end portions fixed to a rear end of a front side frame and a lower face of a floor panel, respectively, and a fixation portion where a suspension of a vehicle is fixed, a first floor upper frame extending along the floor lower frame and having front-and-rear end portions fixed to a dash panel and an upper face of a floor panel, respectively, a second floor upper frame connecting the dash panel and a hinge pillar on a rear side of the front side frame, and a connecting member connecting the first floor upper frame and a front end portion of a side sill in a vehicle width direction at a position above the floor panel.Type: ApplicationFiled: November 6, 2023Publication date: May 23, 2024Applicant: MAZDA MOTOR CORPORATIONInventors: Sakayu TERADA, Miho KURATA, Takashi YUUMA, Isamu KIZAKI, Munenari TAKAHASHI
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Publication number: 20240109459Abstract: A seat cushion is formed integrally by a body pad portion, an outer peripheral edge portion, and a connection portion. The outer peripheral edge portion protrudes toward a floor panel from the outer peripheral edge portion in a plan view and contacts a floor panel at its lower face. The connection portion is provided to protrude toward the floor panel at a portion which is separated from a front-side part of the outer peripheral edge portion and a rear-side part of the outer peripheral edge portion, respectively. The connection portion connects the floor panel and the body pad portion. A portion between the front-side part and the rear-side part of the outer peripheral edge portion in a vehicle longitudinal direction is a separation portion where a lower face of the seat cushion faces an upper face of the floor panel with a gap.Type: ApplicationFiled: February 23, 2023Publication date: April 4, 2024Applicant: MAZDA MOTOR CORPORATIONInventors: Kenji MATSUMOTO, Miho KURATA, Sakayu TERADA, Daisuke YAMADA, Yuki HANAZAWA, Naoko MOTOYOSHI, Aoi FUJIMOTO, Junsuke INOUE, Takashi SUZUKI
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Patent number: 11845496Abstract: A vibration damping structure includes a panel which is a structure and a damping member joined to the panel. The damping member has a plurality of joined portions joined to a mating surface of the panel through respective joined surfaces in the X direction, and a plurality of spacing portions recessed toward the side opposite to the panel in the Z direction between adjacent joined portions. The damping member is formed such that the damping member is higher in damping than the panel and a resonance frequency of the damping member is formed such that it is substantially the same as a primary resonance frequency of the panel.Type: GrantFiled: February 9, 2022Date of Patent: December 19, 2023Assignee: MAZDA MOTOR CORPORATIONInventors: Kaito Nakamura, Miho Kurata, Sakayu Terada, Shuhei Narita, Daisuke Yamada, Toshitaka Miyoshi
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Publication number: 20230192012Abstract: A vehicle upper structure reduces noise in a cabin by preventing vibration of a roof panel while avoiding an increase in manufacturing cost and an increase in vehicle weight. A vehicle includes a roof panel, a front header, a ceiling, and a vibration damping member. The front header extends in a vehicle width direction on an inner side of the cabin from the roof panel. The ceiling covers the roof panel from the inner side of the cabin. The vibration damping member is fixed to an upper surface of the ceiling. The vibration damping member is arranged between a sun visor fixed portion and a gusset fixed portion in the vehicle width direction and near the front header. The vibration damping member has at least two resonance frequencies and is configured such that one resonance frequency thereof is substantially the same as a resonance frequency of the ceiling.Type: ApplicationFiled: November 22, 2022Publication date: June 22, 2023Applicant: MAZDA MOTOR CORPORATIONInventors: Miho KURATA, Sakayu TERADA, Daisuke YAMADA, Kohya NAKAGAWA, Akinori UTSUNOMIYA, Koki YAMASHITA, Kenji MATSUMOTO
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Patent number: 11485423Abstract: Floor panel vibration is reduced by suppressing a mode in which an entire region surrounded by a plurality of frame members in a floor panel vibrates. Vehicle-body framework members having closed cross-section structures, and a panel member to which vibration is transmitted from an engine or/and a suspension via the vehicle-body framework members are provided. The panel member includes a flange portion having a planar shape on its outer peripheral edge and to which the vehicle-body framework members are joined along the panel outer peripheral edge; a curved surface portion that is curved such that a place closer to a panel central side bulges out more to a lower side in a continuous manner from a panel-central-side edge portion of the flange portion; and a flat surface portion that extends to the panel central side from the panel-central-side edge portion of the curved surface portion in a continuous manner.Type: GrantFiled: January 27, 2021Date of Patent: November 1, 2022Assignee: MAZDA MOTOR CORPORATIONInventors: Kaito Nakamura, Miho Kurata, Sakayu Terada
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Publication number: 20220324520Abstract: A vibration damping structure includes a panel which is a structure and a damping member joined to the panel. The damping member has a plurality of joined portions joined to a mating surface of the panel through respective joined surfaces in the X direction, and a plurality of spacing portions recessed toward the side opposite to the panel in the Z direction between adjacent joined portions. The damping member is formed such that the damping member is higher in damping than the panel and a resonance frequency of the damping member is formed such that it is substantially the same as a primary resonance frequency of the panel.Type: ApplicationFiled: February 9, 2022Publication date: October 13, 2022Applicant: Mazda Motor CorporationInventors: Kaito Nakamura, Miho Kurata, Sakayu Terada, Shuhei Narita, Daisuke Yamada, Toshitaka Miyoshi
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Publication number: 20210261203Abstract: Floor panel vibration is reduced by suppressing a mode in which an entire region surrounded by a plurality of frame members in a floor panel vibrates. Vehicle-body framework members having closed cross-section structures, and a panel member to which vibration is transmitted from an engine or/and a suspension via the vehicle-body framework members are provided. The panel member includes a flange portion having a planar shape on its outer peripheral edge and to which the vehicle-body framework members are joined along the panel outer peripheral edge; a curved surface portion that is curved such that a place closer to a panel central side bulges out more to a lower side in a continuous manner from a panel-central-side edge portion of the flange portion; and a flat surface portion that extends to the panel central side from the panel-central-side edge portion of the curved surface portion in a continuous manner.Type: ApplicationFiled: January 27, 2021Publication date: August 26, 2021Applicant: MAZDA MOTOR CORPORATIONInventors: Kaito NAKAMURA, Miho KURATA, Sakayu TERADA
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Patent number: 10618563Abstract: A frame member for a vehicle comprises a first side wall, a second side wall provided on an inward side, in a vehicle width direction, of the first side wall, an upper wall and a lower wall, which are configured to form a structure of the closed cross section of the frame member together with the first and the second side walls, an upper-side lateral rib and a lower-side lateral rib, which are respectively provided between the upper and lower walls to interconnect the first and the second side walls and extend linearly, when viewed from the longitudinal direction of the frame member, an upper-side vertical rib provided to face the first side wall and interconnect the upper wall and the upper-side lateral rib, and a lower-side vertical rib provided to face the first side wall and interconnect the lower wall and the lower-side lateral rib.Type: GrantFiled: May 15, 2018Date of Patent: April 14, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Sakayu Terada, Koji Miyamoto, Atsushi Gonokuchi, Takashi Yuuma
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Publication number: 20180334192Abstract: A frame member for a vehicle comprises a first side wall, a second side wall provided on an inward side, in a vehicle width direction, of the first side wall, an upper wall and a lower wall, which are configured to form a structure of the closed cross section of the frame member together with the first and the second side walls, an upper-side lateral rib and a lower-side lateral rib, which are respectively provided between the upper and lower walls to interconnect the first and the second side walls and extend linearly, when viewed from the longitudinal direction of the frame member, an upper-side vertical rib provided to face the first side wall and interconnect the upper wall and the upper-side lateral rib, and a lower-side vertical rib provided to face the first side wall and interconnect the lower wall and the lower-side lateral rib.Type: ApplicationFiled: May 15, 2018Publication date: November 22, 2018Applicant: MAZDA MOTOR CORPORATIONInventors: Sakayu TERADA, Koji MIYAMOTO, Atsushi GONOKUCHI, Takashi YUUMA
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Patent number: 9944330Abstract: An upper face portion of a suspension tower portion of a vehicle comprises an fastening face portion where plural fastening portions to which an upper-side attached portion of a suspension is fixedly fastened are provided and a top face portion which is provided at a higher level than the fastening face portion so as to face the upper-side attached portion of the suspension, the top face portion being connected to a central portion of the fastening face portion via a vertical wall portion. An inner-peripheral-side rib is provided on an inner-peripheral side of the vertical wall portion.Type: GrantFiled: August 4, 2016Date of Patent: April 17, 2018Assignee: MAZDA MOTOR CORPORATIONInventors: Miho Kowaki, Sakayu Terada, Ryotaro Hirata
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Patent number: 9878742Abstract: A suspension tower portion structure of a vehicle is configured such that an upper face portion of a suspension tower portion comprises an fastening face portion where plural fastening portions to which an upper-side attached portion of a suspension is fixedly fastened are provided, plural arc-shaped wall portions which are each provided to rise around the fastening portion are provided on the fastening face portion, and the arc-shaped wall portion is configured to be spaced apart from a fastening seat portion of a fastening member to be fastened to the fastening portion 11, having a constant distance therebetween.Type: GrantFiled: August 4, 2016Date of Patent: January 30, 2018Assignee: MAZDA MOTOR CORPORATIONInventors: Miho Kowaki, Sakayu Terada, Takehiro Kamei, Ryotaro Hirata
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Publication number: 20170080982Abstract: An upper face portion of a suspension tower portion of a vehicle comprises an fastening face portion where plural fastening portions to which an upper-side attached portion of a suspension is fixedly fastened are provided and a top face portion which is provided at a higher level than the fastening face portion so as to face the upper-side attached portion of the suspension, the top face portion being connected to a central portion of the fastening face portion via a vertical wall portion. An inner-peripheral-side rib is provided on an inner-peripheral side of the vertical wall portion.Type: ApplicationFiled: August 4, 2016Publication date: March 23, 2017Applicant: MAZDA MOTOR CORPORATIONInventors: Miho KOWAKI, Sakayu TERADA, Ryotaro HIRATA
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Publication number: 20170080983Abstract: A suspension tower portion structure of a vehicle is configured such that an upper face portion of a suspension tower portion comprises an fastening face portion where plural fastening portions to which an upper-side attached portion of a suspension is fixedly fastened are provided, plural arc-shaped wall portions which are each provided to rise around the fastening portion are provided on the fastening face portion, and the arc-shaped wall portion is configured to be spaced apart from a fastening seat portion of a fastening member to be fastened to the fastening portion 11, having a constant distance therebetween.Type: ApplicationFiled: August 4, 2016Publication date: March 23, 2017Applicant: MAZDA MOTOR CORPORATIONInventors: Miho KOWAKI, Sakayu TERADA, Takehiro KAMEI, Ryotaro HIRATA
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Patent number: 9381942Abstract: Disclosed is a rear vehicle body structure of a vehicle, which comprises a rear floor panel, and a rear side frame joined to a lower surface of the rear floor panel to extend in a front-rear direction. A bottom wall of the rear side frame has a bottom reinforcing portion formed to protrude upwardly or downwardly, and a standing wall of the rear side frame located on a vehicle-widthwise inner side has a side reinforcing portion formed to protrude outwardly in the vehicle width direction. The bottom reinforcing portion includes a top, an outer inclined section extending from the top obliquely outwardly in the vehicle width direction, and an inner inclined section extending from the top obliquely inwardly in the vehicle width direction, wherein the inner inclined section has an inclination angle less than an inclination angle of the outer inclined section.Type: GrantFiled: October 17, 2014Date of Patent: July 5, 2016Assignee: MAZDA MOTOR CORPORATIONInventors: Masanori Honda, Yuki Toyama, Motoki Esumi, Koji Yoshimura, Sakayu Terada
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Patent number: 9321487Abstract: A frame body (1) has a closed cross-section formed by a first surface (11), a second surface (12) wider than the first surface (11), and two side surfaces (13), and each of the side surfaces (13) has a single bent part (14) or two or more bent parts (14). In the cross-section of the frame body (1), the first surface (11) and an outer part (13a) of the side surface (13) form an angle of approximately 90 degrees or larger than 90 degrees inside the closed cross-section, and a specific bent part which is the single bent part (14) or one of the bent parts (14) closest to the second surface (12) is bent to protrude inward of the closed cross-section.Type: GrantFiled: January 16, 2013Date of Patent: April 26, 2016Assignee: MAZDA MOTOR CORPORATIONInventors: Masanori Honda, Chikara Kawamura, Sakayu Terada
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Publication number: 20150344074Abstract: Disclosed is a rear vehicle body structure of a vehicle, which comprises a rear floor panel, and a rear side frame joined to a lower surface of the rear floor panel to extend in a front-rear direction. A bottom wall of the rear side frame has a bottom reinforcing portion formed to protrude upwardly or downwardly, and a standing wall of the rear side frame located on a vehicle-widthwise inner side has a side reinforcing portion formed to protrude outwardly in the vehicle width direction. The bottom reinforcing portion includes a top, an outer inclined section extending from the top obliquely outwardly in the vehicle width direction, and an inner inclined section extending from the top obliquely inwardly in the vehicle width direction, wherein the inner inclined section has an inclination angle less than an inclination angle of the outer inclined section.Type: ApplicationFiled: October 17, 2014Publication date: December 3, 2015Applicant: MAZDA MOTOR CORPORATIONInventors: Masanori HONDA, Yuki TOYAMA, Motoki ESUMI, Koji YOSHIMURA, Sakayu TERADA
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Patent number: 9156504Abstract: A rear frame (11) includes: a first inclined part (11A) having a rearward rising incline, a trailing arm attachment part (11B) extending horizontally at the rear side of the first inclined part (11A), and a second inclined part (11C) having a rearward rising incline at the rear side of the trailing arm attachment part (11B). An upward-convex first protrusion (41), in which at least a portion of the front end section of a trailing arm (21) is accommodated, is formed in the trailing arm attachment part (11B), a downward-convex second protrusion (42) is formed in the front section of the first inclined part (11A), and the first protrusion (41) and the second protrusion (42) are disposed so as to mutually overlap in the vehicle width direction.Type: GrantFiled: December 4, 2012Date of Patent: October 13, 2015Assignee: Mazda Motor CorporationInventors: Sakayu Terada, Takashi Yoshimura, Kazuya Chikamori
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Publication number: 20150217810Abstract: A rear frame includes: a first inclined part having a rearward rising incline, a trailing arm attachment part extending horizontally at the rear side of the first inclined part, and a second inclined part having a rearward rising incline at the rear side of the trailing arm attachment part. An upward-convex first protrusion, in which at least a portion of the front end section of a trailing arm is accommodated, is formed in the trailing arm attachment part, a downward-convex second protrusion is formed in the front section of the first inclined part, and the first protrusion and the second protrusion are disposed so as to mutually overlap in the vehicle width direction.Type: ApplicationFiled: December 4, 2012Publication date: August 6, 2015Applicant: MAZDA MOTOR CORPORATIONInventors: Sakayu Terada, Takashi Yoshimura, Kazuya Chikamori
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Patent number: 9079618Abstract: A pair of right-and-left roof rails, a roof panel provided between the roof rails, a roof reinforcement extending in a vehicle width direction below the roof panel, a center pillar, and a gusset joined to an end portion, in the vehicle width direction, of the roof reinforcement are provided. Further, a node-shaped plate member is provided inside the roof rail at a position which overlaps the roof reinforcement longitudinally and vertically. Accordingly, buckling of a portion of the roof reinforcement which is located in the vicinity of a roof side can be restrained.Type: GrantFiled: December 20, 2013Date of Patent: July 14, 2015Assignee: Mazda Motor CorporationInventors: Katsuyoshi Ishigame, Yuichi Sugimura, Sakayu Terada, Keizo Kawasaki
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Patent number: 8967672Abstract: In a vehicle-body structure of a vehicle, where suspension forming members are attached to a vehicle body, there are provided a first face portion, through which the suspension forming member extends, a second face portion provided to face to the first face portion, and a support member provided between the first face portion and the second face portion and supporting the suspension forming members, and the support member is joined to said second face portion via a reinforcing member which is formed integrally with the support member or formed separately from the support member. Accordingly, vibrations of the support member can be properly restrained.Type: GrantFiled: August 30, 2012Date of Patent: March 3, 2015Assignee: Mazda Motor CorporationInventors: Osamu Kurogi, Tsuyoshi Sugihara, Kohya Nakagawa, Kuniaki Nagao, Sakayu Terada, Miho Kowaki, Akira Iyoshi, Shigeaki Watanabe