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Patent Agency Ranking
公开(公告)号：US09936539B2
公开(公告)日：2018-04-03
申请号：US14774667
申请日：2014-06-04
Inventor： Shigeaki Sakatani , Kazuma Oikawa , Kentaro Takada , Norio Abe , Takaaki Hyoudou
CPC classification number: H05B3/36 , B60H1/00 , B60N2/56 , B60N2/5685 , H05B1/00 , H05B3/342 , H05B2203/014 , H05B2203/02 , H05B2203/029 , H05B2203/037
Abstract: A seat heater that is a seat including: a planer heating element that has a plurality of electric heating wires on its upper surface and that includes a fiber layer; a cushion member that locates over a lower surface of the planer heating element; and a skin that locates above the planer heating element, wherein the planer heating element has, in voids of the fiber layer, a silica aerogel that is a silica porous body having pores with a mean pore diameter of 10 nm to 68 nm.
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公开(公告)号：US12195911B2
公开(公告)日：2025-01-14
申请号：US16877046
申请日：2020-05-18
Inventor： Kazuma Oikawa , Tooru Wada , Shigeki Sakaguchi , Takashi Kubo , Takashi Tsuruta , Shigeaki Sakatani , Daido Komyoji
IPC: H01M10/658 , D06M11/79 , H01M10/0525 , C01B33/158
Abstract: A manufacturing method of a heat insulating sheet of the present disclosure includes a composite generating step of impregnating a nonwoven fiber with a basic sol prepared to generate a composite of a hydrogel-nonwoven fiber, the basic sol being prepared by adding carbonate ester to a water glass composition; and a drying step of drying a liquid contained in the composite at a temperature lower than a critical temperature of the liquid and a pressure lower than a critical pressure of the liquid to remove the liquid from the composite. A heat insulating sheet according to the present disclosure includes an aerogel and a nonwoven fiber, and has a compression rate at 0.30 MPa to 5.0 MPa of 40% or less. In an electronic device of the present disclosure, the heat insulating sheet is disposed between an electronic component and a housing. In a battery unit of the present disclosure, the heat insulating sheet is disposed between batteries. This provides a heat insulating sheet that can be used under a high load and a manufacturing method thereof, and an electronic device and a battery unit including the same.
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13.发明授权公开(公告)号：US11577490B2
公开(公告)日：2023-02-14
申请号：US16586858
申请日：2019-09-27
Inventor： Kazuma Oikawa , Shigeaki Sakatani , Kazuhiro Nishikawa , Daido Komyoji
Abstract: A heat insulating material includes an aerogel that has macro-pores and meso-pores. A method for manufacturing a heat insulating material, including: a sol preparation step of adding a gelling agent into sodium silicate such that a molar ratio of the gelling agent relative to NaO2 is 0.1 to 0.75, and adjusting a sol into which macro-pores are introduced by leaving unreacted Na and non-cross-linked oxygen in a siloxane skeleton; an impregnating and gelling step of impregnating a nonwoven fabric fiber structure with the sol to form a composite of hydrogel-nonwoven fabric fiber; a hydrophobizating step of mixing the formed composite of hydrogel-nonwoven fabric fiber with a silylating agent to modify a surface thereof; and a drying step of removing a liquid contained in the surface modified composite of hydrogel-nonwoven fabric fiber by drying under a temperature and pressure lower than respective critical values.
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14.发明授权公开(公告)号：US11293583B2
公开(公告)日：2022-04-05
申请号：US15897037
申请日：2018-02-14
Inventor： Daido Kohmyohji , Kazuma Oikawa , Takashi Tsuruta , Tooru Wada , Shigeaki Sakatani , Hidenori Miyakawa
Abstract: Heat-insulation materials that can be placed along the lines of heat sources, heat-insulation structures using the same, and processes for producing the same. A heat-insulation material, that includes: fiber sheets that each have fibers and an aerogel and that have different sizes; and at least one covering material that covers the fiber sheets, or at least one elastic material that includes the fiber sheets. The at least one covering material may include a first covering material and a second covering material.
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15.发明授权公开(公告)号：US10710332B2
公开(公告)日：2020-07-14
申请号：US16719972
申请日：2019-12-18
Inventor： Kazuma Oikawa , Kei Toyota , Shinji Okada , Shigeaki Sakatani
Abstract: A heat-insulation sheet includes a first silica xerogel layer, a second silica xerogel layer, and a composite layer. The first silica xerogel layer includes a first silica xerogel, and the second silica xerogel layer includes a second silica xerogel. The composite layer is located between the first silica xerogel layer and the second silica xerogel layer, and includes at least one type of unwoven fabric fibers, and a third silica xerogel. The third silica xerogel is located in a spatial volume of the unwoven fabric fibers.
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