公开(公告)号：US20220169313A1

公开(公告)日：2022-06-02

申请号：US17432998

申请日：2020-02-07

Applicant: MAZDA MOTOR CORPORATION

Inventor： Tomohito OKUYAMA ,  Ryuji NONAKA ,  Junji KISHIMOTO ,  Toshimine MORINO ,  Kazuhisa TO ,  Chikara TANAKA ,  Shin SASAKI

IPC: B62D25/06 ,  B62D29/04

Abstract: A vehicle roof structure is provided capable of maintaining side collision performance of a vehicle even without a roof reinforcing member. The vehicle roof structure includes an annular frame that is joined to a circumferential edge of a roof panel (which includes an outer panel and an inner panel), and supports the roof panel. The annular frame has a higher rigidity than the roof panel, is arranged in an opening of a roof, and is joined to a pair of roof side rails, a front header, and a rear header.

公开(公告)号：US20210307217A1

公开(公告)日：2021-09-30

申请号：US17183379

申请日：2021-02-24

Applicant: Nippon Steel Chemical & Material Co., Ltd. ,  Mazda Motor Corporation

Inventor： Toshiaki MIYANAGA ,  Kazuhisa TO ,  Nobuyoshi KAJIOKA ,  Junichi OGAWA ,  Kenji HIRAMOTO

IPC: H05K9/00 ,  C08K3/04 ,  C08K7/06 ,  C08K13/04

Abstract: The electrically conductive resin composition may contain matrix resin, coke powder, and carbon fiber. The volume mean particle diameter of the coke powder may be not less than 1 μm and not more than 500 μm. The content percentage of the coke powder in the electrically conductive resin composition may be not less than 1 wt % and not more than 60 wt %. The aspect ratio of the carbon fiber may be not less than 3 and not more than 1700. The content percentage of the carbon fiber in the electrically conductive resin composition may be not less than 0.5 wt % and not more than 10 wt %.

公开(公告)号：US20190143612A1

公开(公告)日：2019-05-16

申请号：US16089237

申请日：2017-03-29

Applicant: KURIMOTO, LTD. ,  MAZDA MOTOR CORPORATION

Inventor： Takeshi KITAGAWA ,  Masaya HAZAMA ,  Toshiki OKAUJI ,  Makoto TAKEDA ,  Jun WATANABE ,  Takashi TABAKOYA ,  Shin MATSUMURA ,  Yoshiyasu KAJIMOTO ,  Kazuhisa TO

IPC: B29C70/12 ,  B29C70/22 ,  B29C70/52

Abstract: A fiber-reinforced resin hollow body includes an axial-direction fiber layer containing reinforcing fibers aligned parallel to an axial direction of the hollow body, and a non-axial-direction fiber layer provided on top of at least one of an internal and an external side of the axial-direction fiber layer, and containing reinforcing fibers oriented in a direction different from the alignment direction of the axial-direction fiber layer. The non-axial-direction fiber layer includes one or more peripheral-direction fiber layers containing reinforcing fibers aligned parallel to a peripheral direction of the hollow body, and one or more non-aligned fiber layers containing reinforcing fibers not aligned in a specific direction.

公开(公告)号：US20200071863A1

公开(公告)日：2020-03-05

申请号：US16537501

申请日：2019-08-09

Applicant: MAZDA MOTOR CORPORATION ,  MIZUNO TECHNICS CORPORATION

Inventor： Kohya NAKAGAWA ,  Kiyoshi FUJIWARA ,  Kazuhisa TO ,  Chikara TANAKA ,  Takahiro ATSUMI ,  Hiroki ASHIDA

IPC: D04C1/06 ,  D04C1/04

Abstract: Provided is a fiber reinforced plastic member made by a braiding technique to obtain high rigidity and superior vibration damping performance under a bending load. A reinforcing member made of carbon fiber reinforced plastic resin extends in a specific direction along an axis of the reinforcing member and includes a carbon fiber braided structure. The carbon fiber braided structure has a structure in which a plurality of axial yarns, a plurality of first braid yarns, and a plurality of second braid yarns are braided. A plurality of first braid yarns are wound to intersect the axis at a first braid angle. A plurality of second braid yarns are wound to intersect the axis at a second braid angle. The first braid yarns and the second braid yarns intersect each other. The reinforcing member has a region approximately in the longitudinal middle where the first braid angle and the second braid angle of the first braid yarns and the second braid yarns take values larger than in other region regarding the longitudinal direction.

公开(公告)号：US20190105870A1

公开(公告)日：2019-04-11

申请号：US16089232

申请日：2017-03-29

Applicant: KURIMOTO, LTD. ,  MAZDA MOTOR CORPORATION

Inventor： Takeshi KITAGAWA ,  Masaya HAZAMA ,  Toshiki OKAUJI ,  Makoto TAKEDA ,  Jun WATANABE ,  Takashi TABAKOYA ,  Shin MATSUMURA ,  Yoshiyasu KAJIMOTO ,  Kazuhisa TO

IPC: B32B5/26 ,  B32B1/08 ,  B29C70/52 ,  B29C70/20

Abstract: A fiber-reinforced resin hollow body includes an axial-direction fiber layer containing reinforcing fibers aligned parallel to an axial direction of the hollow body, and a non-axial-direction fiber layer provided on top of at least one of an internal and an external side of the axial-direction fiber layer, and containing reinforcing fibers oriented in a direction different from a direction in which the reinforcing fibers contained in the axial-direction fiber layer are aligned. The non-axial-direction fiber layer has end portions in a peripheral direction of the hollow body, the end portions overlapping each other.