Seat cushion having an edge portion, to be used for a seat of saddle-riding vehicle, and manufacturing method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11753097
APP PUB NO 20220306228A1
SERIAL NO

17703464

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Abstract

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A seat cushion includes an edge portion and a three-dimensional fiber structure including core-sheath fusible fibers and skeletal fibers thermally fused at intersections thereof. The sheaths of the core-sheath fusible fibers are made of a thermoplastic elastomer to fuse the intersections and form a bulging portion at each of the fused intersections. The skeletal fibers and the cores of the core-sheath fusible fibers are made of a non-elastomer resin. The skeletal fibers are crimp-processed bulky fibers, and a fineness of the skeletal fibers and a fineness of the core-sheath fusible fibers are in a range of 1 to 200 dtex. The seat cushion has a layered structure including a plurality of layers fused together, each of the layers has the three-dimensional fiber structure, and the seat cushion has a density distribution based on regional variations of the layered structure and a stiffness distribution that depends on the density distribution.

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Patent Owner(s)

  • YAMAHA HATSUDOKI KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoyama, Yusuke Shizuoka, JP 6 93
Kakuta, Sho Shizuoka, JP 2 2
Kinomoto, Naoki Shizuoka, JP 12 49
Mashiko, Tetsuya Shizuoka, JP 24 166
Ozawa, Shigeyuki Shizuoka, JP 66 608
Sato, Hideyoshi Shizuoka, JP 13 29
Yokoyama, Mikito Osaka, JP 1 1

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