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公开(公告)号：EP4101898A1
公开(公告)日：2022-12-14
申请号：EP21750353.1
申请日：2021-01-14
发明人： MATSUZAKI Yuya , FUKE Kazuhiro , UI Takehiro
IPC分类号： C08L101/00 , H05K9/00
摘要： A composite material and an electromagnetic wave absorber made by molding the same, which are capable of exhibiting an excellent electromagnetic wave absorption function and capable of suppressing the deterioration of mechanical properties of the electromagnetic wave absorber itself. A composite material comprising a single type of thermoplastic resin and a conductive filler contained in a dispersed state in the thermoplastic resin, wherein the composite material includes at least one portion A and a portion B with different conductive filler content percentages in a mixed manner, and wherein the ratio of the conductive filler content percentage in the portion A to the conductive filler content percentage in the portion B is greater than 1.0; and an electromagnetic wave absorber made by molding the same.
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公开(公告)号：EP4397990A1
公开(公告)日：2024-07-10
申请号：EP22864593.3
申请日：2022-08-30
发明人： MATSUZAKI Yuya , FUKE Kazuhiro , UI Takehiro , AKIYAMA Kyohei
摘要： An electromagnetic shield 10a includes a plate-shaped solid portion 15 having a first surface 13 configured to allow an electromagnetic wave to be incident on the first surface 13. The solid portion 15 includes solid dielectrics having different relative permittivities. The solid dielectrics are disposed in turn in contact with each other in a particular direction along the first surface 13.
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3.发明公开
公开(公告)号：EP4271157A1
公开(公告)日：2023-11-01
申请号：EP21911084.8
申请日：2021-12-24
发明人： FUKE Kazuhiro , UI Takehiro , MATSUZAKI Yuya , AKIYAMA Kyohei
摘要： The present invention provides a member which, with a novel configuration, can transmit and attenuate incident radio waves, without the need for mixing a radio wave absorption material for example a dielectric loss material such as carbon particles or a magnetic loss material such as an iron oxide powder, or incorporating a scattering body. Provided is a radio wave scattering body that is characterized by being configured to transmit at least a portion of incident radio waves and to emit the transmitted radio waves in a scattering state, and comprising a resin composition in which a resin is a main component.
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公开(公告)号：EP4270652A1
公开(公告)日：2023-11-01
申请号：EP22876502.0
申请日：2022-09-29
发明人： MATSUZAKI Yuya , FUKE Kazuhiro , SUZUKI Takuya
摘要： A method for designing radio scattering bodies includes making a determination of a value Q1 of an objective function. The objective function represents a radio scattering property of a design target T for a case where a radio wave E is incident on the design target under a given condition. The determination of the value Q1 is made by computation using an analysis model M including the design target T, the analysis model being created on the basis of a set value P1 of a parameter describing a shape of the design target T.
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公开(公告)号：EP4270047A1
公开(公告)日：2023-11-01
申请号：EP22845967.3
申请日：2022-07-20
发明人： UI Takehiro , FUKE Kazuhiro , MATSUZAKI Yuya , AKIYAMA Kyohei
IPC分类号： G01S7/03 , H01Q17/00 , H05K9/00 , G01S13/931
摘要： An electromagnetic shield 1a includes a plate-shaped base 5, a plurality of first projecting portions 32, and a plurality of second projecting portions 2. The plate-shaped base 5 has a first surface 10 and a second surface 20. The first surface 10 is a surface configured to allow an electromagnetic wave Ei to be incident on the first surface 10. The second surface 20 is a surface being distant from the first surface 10 and extending along the first surface 10. The plurality of first projecting portions 32 project from the first surface 10 in a direction away from the second surface 20. The plurality of second projecting portions 33 project from the second surface 20 in a direction away from the first surface 10. The electromagnetic shield 1a includes a dielectric.
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公开(公告)号：EP4375696A1
公开(公告)日：2024-05-29
申请号：EP22845966.5
申请日：2022-07-20
发明人： UI Takehiro , FUKE Kazuhiro , MATSUZAKI Yuya , AKIYAMA Kyohei
摘要： An electromagnetic shield 1a includes a plate-shaped base 5 having a first surface 10 and a second surface 20. The first surface 10 is a surface configured to allow an electromagnetic wave to be incident on the first surface 10. The second surface 20 is distant from the first surface 10 and extends along the first surface 10. The electromagnetic shield 1a includes projecting strip portions 11. The electromagnetic shield 1a includes a dielectric. The electromagnetic shield 1a has a space 15 forming either a gap or a hole, and the gap or the hole is in contact with the projecting strip portion 11 along a direction intersecting with a longitudinal direction of the projecting strip portion 11.
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公开(公告)号：EP4270654A1
公开(公告)日：2023-11-01
申请号：EP22853123.2
申请日：2022-08-03
发明人： MATSUZAKI Yuya , FUKE Kazuhiro , UI Takehiro , AKIYAMA Kyohei
摘要： An electromagnetic shield 10a is disposed in front of a radar 30. The radar 30 has different angles of view in different directions. The radar 30 has a first angle of view 2α in a first direction and a second angle of view 2β in a second direction. The second angle of view 2β is smaller than the first angle of view 2α. The second direction is orthogonal to the first direction. The electromagnetic shield 10a has a pair of first sides 11 and a pair of second sides 12. The pair of first sides 11 face each other in the first direction. The pair of second sides 12 face each other in the second direction. The electromagnetic shield 10a includes a dielectric. At least one of the pair of first sides 11 includes a structure 15 having at least one selected from the group consisting of a projecting portion and a recessed portion.
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公开(公告)号：EP4270046A1
公开(公告)日：2023-11-01
申请号：EP22845965.7
申请日：2022-07-20
发明人： UI Takehiro , FUKE Kazuhiro , MATSUZAKI Yuya , AKIYAMA Kyohei
IPC分类号： G01S7/03 , H05K9/00 , G01S13/931
摘要： An electromagnetic shield 1a includes a plate-shaped base 5, a plurality of first projecting portions 11, and a contact portion 5f. The base 5 has a first surface 10 and a second surface 20. The first surface 10 is a surface configured to allow an electromagnetic wave to be incident on the first surface 10. The second surface 20 is distant from the first surface 10 and extends along the first surface 10. The plurality of first projecting portions 11 project from the first surface 10 in a direction away from the second surface 20. The electromagnetic shield 1a includes a dielectric. The electromagnetic shield 1a is capable of being attached to a component other than the electromagnetic shield 1a such that the component is in contact with the contact portion 5f and the first surface 10 faces the component. The electromagnetic shield 1a includes a second projecting portion 21a in a particular portion 10p. A distance from the contact portion 5f to the particular portion 10p in a direction parallel to the first surface 10 is equal to or shorter than a first distance d1 between the first projecting portion 11 closest to the contact portion 5f and the contact portion 5f.
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公开(公告)号：EP4375697A1
公开(公告)日：2024-05-29
申请号：EP22845968.1
申请日：2022-07-20
发明人： UI Takehiro , FUKE Kazuhiro , MATSUZAKI Yuya , AKIYAMA Kyohei
IPC分类号： G01S7/03 , H01Q17/00 , H05K9/00 , G01S13/931
CPC分类号： G01S13/931 , H05K9/00 , G01S7/03 , H01Q17/00
摘要： An electromagnetic shield 1a includes a plate-shaped base 5 and first projecting portions 11. The base 5 has a first surface 10 and a second surface 20, the first surface 10 being configured to allow an electromagnetic wave to be incident on the first surface 10. The second surface 20 is distant from the first surface 10 and extends along the first surface 10. The electromagnetic shield 1a includes a dielectric. In the electromagnetic shield 1a, at least one of the first projecting portions 11 has a side 11s including a first point S1 and a second point S2, the side 11s makes different inclination angles with a projecting direction of the first projecting portion 11 at the first point S1 and the second point S2. In the projecting direction of the first projecting portion 11, the second point S2 is closer to the first surface 10 than the first point S1 is. On the side 11s, an inclination angle β is greater than an inclination angle α.
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公开(公告)号：EP4270655A1
公开(公告)日：2023-11-01
申请号：EP22853171.1
申请日：2022-08-04
发明人： MATSUZAKI Yuya , FUKE Kazuhiro , UI Takehiro , AKIYAMA Kyohei
摘要： An electromagnetic shield 10a includes a plate-shaped base 5. The base 5 has a first surface 11 and a second surface 12. The first surface 11 is a surface configured to allow an electromagnetic wave to be incident on the first surface 11. The second surface 12 is distant from the first surface 11 and extends along the first surface 11. The electromagnetic shield 10a includes a dielectric. The first surface 11 includes a plurality of first recessed portions 11a and a first solid portion 11b. The plurality of first recessed portions 11a are arranged at a given interval in a particular direction along the first surface 11. The first solid portion 11b includes a surface 11s in contact with an edge 11c of the first recessed portion 11a in the particular direction, the surface 11s being a basis of a depth of the first recessed portion 11a. The first solid portion 11b has a dimension in a depth direction of the first recessed portion 11a, the dimension being equal to or greater than a depth D1 of the first recessed portion 11a. The second surface 12 includes a plurality of second recessed portions 12a arranged alternately with the plurality of first recessed portions 11a in the particular direction.
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