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公开(公告)号：US11121461B2
公开(公告)日：2021-09-14
申请号：US16659914
申请日：2019-10-22
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Toshiya Sakai , Kazumasa Sakurai , Asahi Kondo
Abstract: An antenna device includes a dielectric substrate, a ground plane, an antenna unit, and an additional functional unit. The dielectric substrate includes a plurality of pattern formation layers. The ground plane is formed on a first pattern formation layer included in the plurality of pattern formation layers, and acts as an antenna grounding surface. The antenna unit is formed on a pattern formation layer that is included in the plurality of pattern formation layers and that is different from the first pattern formation layer. The antenna unit includes one or more antenna patterns configured to act as radiation elements. The additional functional unit includes one or more parasitic patterns provided on a propagation path for a surface propagating over the dielectric substrate, and causes the surface wave to generate a radiation wave with polarization different from polarization of a radio wave transmitted and received by the antenna unit.
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公开(公告)号：US20200045810A1
公开(公告)日：2020-02-06
申请号：US16597159
申请日：2019-10-09
Applicant: DENSO CORPORATION
Inventor： Kazumasa Sakurai , Kazuya Wakita
IPC: H05K1/02
Abstract: An interlayer transmission line includes a plurality of dielectric layers stacked on each other, a signal via that penetrates the plurality of dielectric layers in a stacking direction, and mutually connects signal patterns disposed on two external faces of the plurality of dielectric layers externally exposed, a ground plane that is disposed between the dielectric layers, and covers an area surrounding a circular removal region centered around the signal via, and a plurality of ground vias that penetrate at least one layer of the dielectric layers in the stacking direction of the dielectric layers, are disposed along a plurality of concentric circles centered around the signal via, and are electrically connected with the ground plane.
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公开(公告)号：US12300881B2
公开(公告)日：2025-05-13
申请号：US17646032
申请日：2021-12-27
Applicant: DENSO CORPORATION
Inventor： Kazumasa Sakurai , Toshiya Sakai
IPC: H01Q1/42 , G01S7/02 , G01S7/03 , G01S13/931 , H01Q1/52
Abstract: A radar device comprises an antenna portion, a radome, and a housing. The antenna portion includes an antenna surface provided with one or more antennas, the antenna emitting a radio wave. The radome is made of a material allowing passage of the radio wave emitted by the antenna portion, and is disposed to face the antenna surface. The housing forms, together with the radome, a space for accommodating the antenna portion. The housing includes a peripheral edge which surrounds the antenna surface and is in contact with the radome, at least part of the peripheral edge includes a barrier part which protrudes outward from the radome along the antenna surface.
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公开(公告)号：US12212065B2
公开(公告)日：2025-01-28
申请号：US17647426
申请日：2022-01-07
Applicant: DENSO CORPORATION
Inventor： Kazumasa Sakurai , Kazushi Kawaguchi
Abstract: A broadband planar array antenna in one aspect of the present disclosure includes: a multi-layer board; a plurality of patch antenna patterns; and a transmission line that connects the plurality of patch antenna patterns in series. The distance from the transmission line to an end of each of the plurality of patch antenna patterns along the polarization direction of a radiated radio wave is shorter with increasing proximity to a feeding point of the transmission line.
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公开(公告)号：US11831060B2
公开(公告)日：2023-11-28
申请号：US16795994
申请日：2020-02-20
Applicant: DENSO CORPORATION
Inventor： Kazumasa Sakurai , Kazuya Wakita
IPC: H01P3/08
CPC classification number: H01P3/08
Abstract: A high-frequency transmission line includes a multi-layer substrate, a plurality of line portions, a plurality of signal vias, a ground plane, and a plurality of metal portions. When a high-frequency signal that is transmitted through each of the plurality of line portions is transmitted through the transmission area corresponding to each of the plurality of line portions, the plurality of metal portions confine the high-frequency signal in the transmission area. The plurality of metal portions pass through at least a single dielectric layer, are electrically continuous with the ground plane. The plurality of metal portions are formed along the transmission direction and are arranged in an alternating manner with each of the plurality of signal vias so as to sandwich each of the plurality of signal vias in a direction differing from the transmission direction.
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Patent Agency Ranking
公开(公告)号：US20170155190A1
公开(公告)日：2017-06-01
申请号：US15322850
申请日：2015-07-01
Applicant: DENSO CORPORATION
Inventor： Kazushi Kawaguchi , Kazumasa Sakurai , Asahi Kondo
CPC classification number: H01Q1/42 , H01Q1/3233 , H01Q9/0407 , H01Q9/0485 , H01Q13/28
Abstract: An antenna apparatus includes: an antenna that performs either transmission or reception of electromagnetic waves having a predetermined frequency; a case provided with a mounting surface on a predetermined surface, mounting the antenna on the mounting surface; a radome formed of a transmissive material allowing the electromagnetic waves to pass therethrough, mounted on the mounting surface so as to cover the antenna. A groove portion is formed on the mounting surface. The radome has a thickness corresponding to a value of ½ wavelength of the electromagnetic waves propagating therethrough multiplied by m, where m is positive integer number. The groove portion is formed in a direction forming a predetermined angle with respect to a normal direction of an opening surface of the antenna, to have a depth defined as ½ wavelength of the electromagnetic waves propagating in the groove portion multiplied by n, where n is positive integer number.
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公开(公告)号：US12276748B2
公开(公告)日：2025-04-15
申请号：US17495261
申请日：2021-10-06
Applicant: DENSO CORPORATION
Inventor： Kazumasa Sakurai , Toshiya Sakai
IPC: G01S7/02 , G01S7/03 , G01S13/93 , G01S13/931 , H01Q15/18
Abstract: A radar device configured to emit radio waves and detects an object present in a prescribed detection region includes an antenna unit and a radio wave reflector. The antenna unit is configured to emit the radio waves. The radio wave reflector is disposed in a region around the antenna unit and outside the detection region and includes a reflection surface having a height gradually changed with respect to an installation surface of the radar device.
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公开(公告)号：US12060021B2
公开(公告)日：2024-08-13
申请号：US17467353
申请日：2021-09-06
Applicant: DENSO CORPORATION
Inventor： Airi Yoshida , Kazumasa Sakurai , Naohito Takasuka
IPC: B60R21/0134 , B60R21/0132 , B60R21/0136 , B60R21/232
CPC classification number: B60R21/0134 , B60R21/0132 , B60R21/0136 , B60R21/232
Abstract: A driving control device is configured to control driving of occupant protection devices to be mounted on a vehicle. The driving control device includes a detection result acquisition unit, a collision form estimation unit, and a device selection unit. The detection result acquisition unit acquires a detection result of an object ahead of the vehicle before collision. The collision form estimation unit estimates a form of collision that may occur with the object based on the detection result. When a collision between the vehicle and the object is detected, the device selection unit selects which of the occupant protection devices should be driven based on the collision form estimated by the collision form estimation unit.
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9.发明授权公开(公告)号：US11637366B2
公开(公告)日：2023-04-25
申请号：US16888275
申请日：2020-05-29
Applicant: DENSO CORPORATION
Inventor： Kazumasa Sakurai , Yuji Sugimoto , Kazushi Kawaguchi , Asahi Kondo
IPC: H01Q1/42 , G01S7/02 , G01S7/03 , H01Q1/32 , G01S13/931
Abstract: A radar apparatus includes transmitting means, receiving means, target detection means, and a cover member. The cover member is positioned opposite at least one of the transmitting means and the receiving means, such as to cover at least one of the transmitting means and the receiving means. The cover member is provided with a first face which is positioned opposite at least one of the transmitting means and the receiving means, and a second face which is on an opposite side from the first face and is not parallel to the first face.
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公开(公告)号：US11575196B2
公开(公告)日：2023-02-07
申请号：US16061836
申请日：2016-12-15
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Kazushi Kawaguchi , Kazumasa Sakurai , Toshiya Sakai , Asahi Kondo
Abstract: An antenna device includes a dielectric substrate, a ground plate arranged on a first surface of the dielectric substrate, an antenna part arranged on a second surface of the dielectric substrate, and a reflecting part. The reflecting part is arranged around the antenna part and has a plurality of conductor patches each functioning as a reflecting plate. The plurality of conductor patches form a plurality of blocks aligned along a predetermined block arrangement direction. The plurality of blocks are configured such that phases of reflected waves at an operating frequency are different for each of the blocks and phase differences of reflected waves between adjacent blocks are non-uniformly different for each of the adjacent blocks.
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