公开(公告)号：US12164127B2

公开(公告)日：2024-12-10

申请号：US17191915

申请日：2021-03-04

Applicant: AGC Inc. ,  AGC FLAT GLASS NORTH AMERICA, INC.

Inventor： Shimpei Morita ,  Kouichirou Takahashi ,  Osamu Kagaya ,  Takato Kajihara ,  Akiyo Nogami

IPC: G02B5/20 ,  C03C17/36 ,  G02B5/26

Abstract: A radio-wave transmitting substrate includes a dielectric substrate, and, on at least one main surface of the dielectric substrate, a heat-ray reflection film including an electroconductive film, and an opening where the electroconductive film is absent in a plan view. At least a part of the at least one main surface in a plan view is a radio-wave transmitting region. The radio-wave transmitting region is a region where every 1-cm square unit region in the region satisfies the following expression (a): L>802.6×S−503.7. L is an overall length (unit: mm/cm2) of a boundary between the heat-ray reflection film and the opening in the unit region, and S is a proportion of an area occupied by the heat-ray reflection film in the unit region.

公开(公告)号：US10714809B2

公开(公告)日：2020-07-14

申请号：US15588242

申请日：2017-05-05

Applicant: AGC Inc.

Inventor： Kouichirou Takahashi

IPC: H01Q1/12 ,  H01Q13/10 ,  H01Q5/378 ,  H01Q9/06 ,  B60R11/00

Abstract: An antenna for vehicle for receiving electric waves from a vehicle front side is attached to an internal side of a window glass for vehicle. The antenna includes a first radiator having a shape of a plate, at least a part of the first radiator being arranged separated from the window glass for vehicle; and a second radiator arranged separated from the first radiator, and arranged so as to sandwich at least a part of the first radiator between the second radiator and the window glass for vehicle.

公开(公告)号：US10135114B2

公开(公告)日：2018-11-20

申请号：US15001629

申请日：2016-01-20

Applicant: AGC INC.

Inventor： Kazuhiko Niwano ,  Kouichirou Takahashi ,  Koji Ikawa

IPC: H01Q1/12 ,  H01Q21/28

Abstract: A MIMO antenna includes a plurality of antenna elements respectively including a plurality of conductive elements that are connected to different feeding points from each other; and one or more base members each being directly or indirectly provided at an upper edge portion of a windshield of a vehicle, the conductive elements being provided at either of the base members, wherein D/W, where “W” is a width of an open portion of a window frame at which the windshield is provided and “D” is a minimum distance between the conductive elements of the antenna elements in a direction parallel to the direction of “W”, is less than or equal to 0.35.