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公开(公告)号：US20240258681A1
公开(公告)日：2024-08-01
申请号：US18290348
申请日：2022-05-10
Applicant: AGC Inc.
Inventor： Shoichi Takeuchi , Hideaki Shoji , Toshiki Sayama , Yusuke Kato
CPC classification number: H01Q1/1271 , H01Q1/3275 , H01Q1/48 , H01Q9/0414
Abstract: Provided is a vehicle antenna system that is able to efficiently receive circularly polarized signals from the zenith direction. A vehicle antenna system (100) is provided with window glass (30) for a vehicle (20) and an antenna element (40) that is able to receive signals of a predetermined frequency band. The antenna element (40) is provided on a first principal plane of a dielectric substrate (43), and includes a radiating conductor (41) that is able to receive circularly polarized signals of a first frequency, and a grounding conductor (44) positioned opposite the radiating conductor (41) via the dielectric substrate (43). The normal direction of the first principal plane is less than or equal to 45° relative to the vertical direction, and the radiating conductor (41) is positioned away from the inner surface of the window glass (30) via the dielectric layer (60) in the direction of the vehicle interior.
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公开(公告)号：US20240166029A1
公开(公告)日：2024-05-23
申请号：US18429411
申请日：2024-01-31
Applicant: AGC Inc.
Inventor： Hideaki SHOJI , Shoichi Takeuchi , Toshiki Sayama , Yusuke Kato , Satoshi Kaneko
CPC classification number: B60J1/20 , H01Q1/3208
Abstract: A window glass apparatus for a vehicle including a first bus bar provided in or on the glass plate and including an upper portion extending in a direction along an upper edge of the glass plate; a second bus bar provided in or on the glass plate and including a lower portion extending in a direction along a lower edge of the glass plate; and an antenna disposed in a space near the upper portion and configured to transmit and receive a radio wave having a certain frequency; wherein the glass plate has a heating area extending between the upper portion and the lower portion, and a non-heating area extending above the upper portion; wherein the heating area is an area where a conductive member is disposed, the conductive member being configured to flow a direct current in an up-down direction.
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公开(公告)号：US11697272B2
公开(公告)日：2023-07-11
申请号：US17746630
申请日：2022-05-17
Applicant: AGC Inc.
Inventor： Shunsuke Sadakane , Shoichi Takeuchi , Hideo Tsuboi , Kazuhiko Niwano , Nobutaka Kidera , Ryota Okuda
CPC classification number: B32B17/10614 , B32B7/025 , B32B17/10036 , B32B17/10761 , B32B27/20 , B32B27/30 , B32B2250/05 , B32B2250/40 , B32B2264/1023 , B32B2305/30 , B32B2307/204 , B32B2307/732 , B32B2315/08 , B32B2329/06 , B32B2605/006 , B32B2605/08 , B60J1/001
Abstract: A laminated glass according to the present invention includes a first glass plate, a second glass plate, and an interlayer film. The interlayer film includes a laminated region including a first layer that is in contact with the first glass plate, a second layer that is in contact with the second glass plate, and a third layer disposed between the first layer and the second layer. When the relative dielectric constant of the first glass plate is denoted by εg1, the relative dielectric constant of the second glass plate is denoted by εg2, the relative dielectric constant of the first layer is denoted by εm1, the relative dielectric constant of the second layer is denoted by εm2, and the relative dielectric constant of the third layer is denoted by εm3, relationships εm1 εm1, εm3>εm2 are established.
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公开(公告)号：US11999134B2
公开(公告)日：2024-06-04
申请号：US17874221
申请日：2022-07-26
Applicant: AGC Inc.
Inventor： Nobutaka Kidera , Kazuhiko Niwano , Shoichi Takeuchi , Tetsuo Abe , Yutaka Kuroiwa
CPC classification number: B32B17/10449 , B32B3/18 , B32B7/023 , B32B7/025 , B32B17/10036 , B32B17/10614 , B32B2250/03 , B32B2250/40 , B32B2264/1021 , B32B2264/1022 , B32B2264/1023 , B32B2264/501 , B32B2307/204 , B32B2307/416 , B32B2307/42 , B32B2605/00
Abstract: A laminated glass according to an embodiment of the present invention includes a first glass plate, a second glass plate, and an interlayer film held between the first glass plate and the second glass plate. When a relative dielectric constant of the first glass plate is represented by εg1; a relative dielectric constant of the second glass plate is represented by εg2; a relative dielectric constant of a first interlayer film provided in a first region of the interlayer film is represented by εm1; a reflection coefficient at an interface between the first glass plate and the first interlayer film is represented by Γ1; and a reflection coefficient at an interface between the second glass plate and the first interlayer film is represented by Γ2, the reflection coefficients Γ1 and Γ2 satisfy relations 0.0≤Γ1≤0.2 and 0.0≤Γ2≤0.2.
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公开(公告)号：US11804649B2
公开(公告)日：2023-10-31
申请号：US17239229
申请日：2021-04-23
Applicant: AGC Inc. , NTT DOCOMO, INC.
Inventor： Minoru Inomata , Tetsuro Imai , Hideaki Shoji , Shoichi Takeuchi
CPC classification number: H01Q1/3233 , H01Q21/0037 , H01Q21/28
Abstract: An antenna system for a vehicle includes a plurality of antenna sets provided on or in proximity to a dielectric arranged on front and rear sides or on right and left sides of the vehicle, or arranged on both thereof, wherein a first antenna set includes first and second antennas, a second antenna set includes third and fourth antennas, a third antenna set includes fifth and sixth antennas, a fourth antenna set includes seventh and eighth antennas, each of the first, third, fifth, and seventh antennas has a higher antenna gain for transmitting and receiving a horizontally polarized wave than transmitting and receiving a vertically polarized wave, and each of the second, fourth, sixth, and eighth antennas has a higher antenna gain for transmitting and receiving the vertically polarized wave than transmitting and receiving the horizontally polarized wave.
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Patent Agency Ranking
公开(公告)号：US12003021B2
公开(公告)日：2024-06-04
申请号：US17322153
申请日：2021-05-17
Applicant: AGC Inc.
Inventor： Shoichi Takeuchi , Hideaki Shoji
CPC classification number: H01Q1/325 , B32B7/12 , B32B17/10165 , B32B2457/00 , B32B2605/00
Abstract: An antenna system includes a glass plate, a resin layer, and an antenna, wherein a predetermined frequency of 3 GHz or greater is defined as F, a transmission coefficient S21 of the glass plate concerning an incident wave of F is defined as S21G, S21 of a laminate concerning the F is defined as S21GR, a frequency closest to F at which S21 of the glass plate becomes a maximum is defined as FP, S21 of the glass plate concerning an incident wave of FP is defined as S21GP, a frequency closest to F among frequencies of incident waves at which S21 of the glass plate becomes a minimum is defined as FV, and S21 of the glass plate concerning an incident wave of FV is defined as S21GV, and wherein a thickness of the resin layer is configured such that: S21GR−S21G≥(S21GP−S21GV)×0.2.
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公开(公告)号：US11183750B2
公开(公告)日：2021-11-23
申请号：US17073917
申请日：2020-10-19
Applicant: AGC Inc.
Inventor： Kenichiro Kodama , Koki Mikamo , Fuminori Watanabe , Shoichi Takeuchi
IPC: H01Q1/32
Abstract: A vehicle antenna includes a conductor plate, a radiator plate facing the conductor plate, a feeding portion located on a same side as the conductor plate with respect to the radiator plate, a connection conductor connecting the feeding portion and the radiator plate, and a first element and a second element arranged away from each other on both sides in a vehicle-width direction of a vehicle with respect to the radiator plate, wherein the radiator plate is arranged at an inclination of equal to or less than ±15 degrees with respect to a vertical plane perpendicular to a horizontal plane.
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公开(公告)号：US20250015476A1
公开(公告)日：2025-01-09
申请号：US18883653
申请日：2024-09-12
Applicant: AGC Inc.
Inventor： Shoichi Takeuchi , Hideaki Shoji , Toshiki Sayama , Yusuke Kato
Abstract: A vehicle-type-antenna-device includes: a dielectric plate for a vehicle; and an antenna attached to the dielectric-plate; wherein the antenna includes: a dielectric-layer disposed along a curved-surface of the dielectric-plate, a conductive-layer laminated on the dielectric-layer and having a planar-pattern formed thereon, a feeding portion electrically connected to the planar-pattern, and an electronic-component electrically connected to the conductive-layer and having a higher rigidity than a combined rigidity of the dielectric-layer and the conductive-layer, wherein a curved-region of the dielectric-plate is defined as an extent to which the dielectric-layer-is attached to the curved-surface includes a first-curved line having a smallest radius-of-curvature in the curved-region and a second-curved line intersecting the first-curved line and having a radius-of-curvature larger than that of the first-curved line, and a longitudinal direction of an extent of the dielectric-plate to which the electronic-component is disposed is a direction along the second-curved line, the extent being a range.
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公开(公告)号：US20240145924A1
公开(公告)日：2024-05-02
申请号：US18409594
申请日：2024-01-10
Applicant: AGC Inc.
Inventor： Yusuke Kato , Shoichi Takeuchi , Hideaki Shoji , Toshiki Sayama
CPC classification number: H01Q9/0428 , H01Q1/325
Abstract: An antenna and an antenna apparatus for vehicle that can achieve reduction in size are provided. The antenna includes a dielectric body, a radiation conductor disposed on a first principal surface side of the dielectric body, and a ground conductor disposed on a second principal surface side of the dielectric body. The ground conductor is a planar conductor disposed within a rectangular region having a length LG1 in a first direction and a length LG2 in a second direction. When the ground conductor is divided into a first region and a second region, the ground conductor includes a slit that starts extending toward the inside of the ground conductor starting from an outer edge of the ground conductor in the first region.
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公开(公告)号：US11522278B2
公开(公告)日：2022-12-06
申请号：US16918427
申请日：2020-07-01
Applicant: AGC Inc.
Inventor： Hideaki Shoji , Shoichi Takeuchi
Abstract: An antenna device includes a first conductor plate including a first end portion and a second end portion, the first conductor plate being provided with a first feeding portion between the first end portion and the second end portion, a second conductor plate including a third end portion connected to the first feeding portion, a fourth end portion located at a position away from the first conductor plate, and a plate surface of which width in a direction parallel to the first conductor plate increases with a distance from the third end portion toward the fourth end portion, and a third conductor plate including a fifth end portion capacitively coupling with the fourth end portion, a sixth end portion connected, on a same side as the first end portion with respect to the first feeding portion, to the first conductor plate, and a counter portion opposite the plate surface.
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