公开(公告)号：US20230335907A1

公开(公告)日：2023-10-19

申请号：US18338191

申请日：2023-06-20

Applicant: DENSO CORPORATION

Inventor： Yuuji KAKUYA ,  Masakazu IKEDA ,  Kenichiro SANJI ,  Tomokazu MIYASHITA ,  Ryozo FUJII ,  Masashi URABE ,  Hiromichi NAITO

IPC: H01Q1/32 ,  H01Q9/04

CPC classification number: H01Q9/0407 ,  H01Q1/3283

Abstract: A wireless communication device for transmitting and receiving radio waves of a target frequency includes a ground plate having a rectangular shape, a zeroth-order resonant antenna element arranged at a position shifted from a center of the ground plate in a lengthwise direction of the ground plate, and a circuit module configured to transmit and receive signal via the zeroth-order resonant antenna element. The zeroth-order resonant antenna element includes a counter conductor plate arranged at a predetermined distance from the ground plate and having a feed point connected to a feedline, and a short circuit portion electrically connecting the counter conductor plate and the ground plate. The ground plate, the counter conductor plate and the short circuit portion are configured to cause parallel resonance at the target frequency and satisfy a condition that resonance caused by the ground plate is reduced.

公开(公告)号：US20190143894A1

公开(公告)日：2019-05-16

申请号：US16250248

申请日：2019-01-17

Applicant: DENSO CORPORATION

Inventor： Masakazu IKEDA ,  Kaneyoshi UEDA ,  Hiroyuki OKUNO ,  Tatsuya HAYASHI

IPC: B60Q9/00 ,  G08G1/16 ,  H04W4/40 ,  H04W4/02

Abstract: A vehicle notification system may include a mobile communication terminal and a vehicle communication terminal. The mobile communication terminal and the vehicle communication terminal may perform a wireless communication with one another. The vehicle notification system may detect a terminal position. The vehicle notification system may detect speed of the mobile communication terminal. The vehicle notification system may detect vertical acceleration of the mobile communication terminal. The vehicle notification system may determine whether an action state of the person possessing the mobile communication terminal is walking, running, riding a bicycle, or riding on a vehicle using the speed and the vertical acceleration. The vehicle notification system may predict a risk degree of accident using the terminal position, a determination result of the action state, and the vehicle position. The vehicle notification system may perform a notification by changing a notification content corresponding to the risk degree of accident.

公开(公告)号：US20180186336A1

公开(公告)日：2018-07-05

申请号：US15580721

申请日：2016-06-07

Applicant: DENSO CORPORATION

Inventor： Masakazu IKEDA ,  Hiroaki KURAOKA

IPC: B60S1/02 ,  B32B17/10 ,  B60J1/00

CPC classification number: B60S1/026 ,  B32B17/10385 ,  B60J1/002 ,  E06B7/28 ,  H01Q1/1278 ,  H01Q15/0006 ,  H05B3/84 ,  H05B2203/014

Abstract: A transparent window plate is provided with a plurality of defogging heat wires arranged to have a side parallel with a first direction. The transparent window plate includes: a plurality of repetitive patterns that are arranged between one of the plurality of defogging heat wires and an adjacent one of the plurality of defogging heat wires so as to be not in contact with the plurality of defogging heat wires, and each of the plurality of repetitive patterns having at least one side parallel with the plurality of defogging heat wires. The plurality of repetitive patterns are aligned along the first direction; and the plurality of repetitive patterns are repetitively arranged along a second direction perpendicular to the first direction.

公开(公告)号：US20250112376A1

公开(公告)日：2025-04-03

申请号：US18792702

申请日：2024-08-02

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  MIRISE Technologies Corporation

Inventor： Yusuke ISONO ,  Masakazu IKEDA ,  Takahiro KATO

IPC: H01Q13/02

Abstract: A transmission device for transmitting an electromagnetic wave includes a first transmission member having a first transmission path and a second transmission member having a second transmission path. The first transmission path is a passage that has an opening on one surface of the first transmission member. The first transmission member and the second transmission member are disposed in such a manner that the second transmission path faces the one surface of the first transmission member with a gap between the second transmission member and the one surface of the first transmission member. The first transmission member has at least one recessed portion that has an opening at a location away from the first transmission path on the one surface.

公开(公告)号：US20250105484A1

公开(公告)日：2025-03-27

申请号：US18792774

申请日：2024-08-02

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  MIRISE Technologies Corporation

Inventor： Masakazu IKEDA ,  Takahiro KATO

IPC: H01P3/123 ,  H01Q1/38 ,  H01Q21/06

Abstract: A waveguide includes a first waveguide having a first waveguide hole and a second waveguide having a second waveguide hole and assembled to the first waveguide with a predetermined gap therebetween. The second waveguide hole has an opening on one surface of the second waveguide facing the first waveguide, and the opening has a rounded polygonal shape or a circular shape. The second waveguide includes a resin molded product and a metal coating film covering the resin molded product, and the second waveguide has a choke groove around the second waveguide hole. The choke groove has such a shape that a length between a wall surface of the second waveguide hole and an inner wall surface of the choke groove adjacent to the second waveguide hole is constant along a circumferential direction of the second waveguide hole.

公开(公告)号：US20230092857A1

公开(公告)日：2023-03-23

申请号：US18070277

申请日：2022-11-28

Applicant: DENSO CORPORATION

Inventor： Yuuji KAKUYA ,  Masakazu IKEDA ,  Kenichirou SANJI ,  Tomokazu MIYASHITA ,  Ryozou FUJII

IPC: H01Q9/04 ,  H01Q1/48 ,  H01Q1/32

Abstract: An antenna device includes a ground plate and an antenna element. The ground plate is a conductor member with a flat rectangular shape. The antenna element is a conductor member having a feed point electrically connected to a feeder line. A length of the ground plate in a predetermined direction is shorter than a target wavelength that is a wavelength of a radio wave to be transmitted or received. The ground plate is connected to a grounding cable at a connection position on the ground plate. The connection position is shifted from an edge of the ground plate by an odd multiple of ¼ of the target wavelength.

公开(公告)号：US20210256728A1

公开(公告)日：2021-08-19

申请号：US17313626

申请日：2021-05-06

Applicant: DENSO CORPORATION

Inventor： Masakazu IKEDA ,  Mitsutoshi MORINAGA

IPC: G06T7/70 ,  G06T7/254 ,  G01S13/58 ,  G01S13/89

Abstract: In an object detection apparatus for detecting a position of an object based on at least measured distances to the object as measurement results by a plurality of ranging sensors, a speed difference calculator calculates, for each of candidate points representing the position of the object, a relative speed difference between the relative speeds of the candidate point acquired from the plurality of ranging sensors. The candidate-point determiner determines that a candidate point of the candidate points, the relative speed difference of which is equal to or greater than a predetermined value, is a virtual image of the object. An object detector detects the position of the object based on positions of the candidate points each determined to be a real image after removal of the candidate points each determined to be a virtual image from all of the candidate points.

公开(公告)号：US20210184356A1

公开(公告)日：2021-06-17

申请号：US16079948

申请日：2017-02-13

Applicant: DENSO CORPORATION ,  SOKEN, INC. ,  NATIONAL UNIVERSITY CORPORATION KYOTO INSTITUTE OF TECHNOLOGY

Inventor： Masakazu IKEDA ,  Yuji SUGIMOTO ,  Hiroaki KURAOKA ,  Shiro KOIDE ,  Tetsuya UEDA ,  Kohei ENOMOTO

IPC: H01Q9/04 ,  H01Q1/48

Abstract: An antenna device includes a ground plate, a patch portion disposed parallel to the ground plate with a particular spacing, a plurality of short circuit portions that electrically connect the patch portion to the ground plate, and a loop portion which is a loop shaped conductor member at a particular spacing from an outer edge portion of the patch portion. The patch portion has an area which forms an electrostatic capacitance that causes parallel resonance with an inductance provided by the short circuit portions at a particular target frequency. The loop portion is formed with a perimeter length which is an integral multiple of the wavelength of radio waves at the target frequency. A feed point is disposed on the loop portion, and current is supplied to the patch portion through the loop portion.

公开(公告)号：US20190103676A1

公开(公告)日：2019-04-04

申请号：US16143718

申请日：2018-09-27

Applicant: DENSO CORPORATION ,  National University Corporation Kyoto Institute of Technology

Inventor： Yuji SUGIMOTO ,  Masakazu IKEDA ,  Shiro KOIDE ,  Tetsuya UEDA ,  Shuhei TERADA

IPC: H01Q9/04 ,  H01Q1/38 ,  H01Q1/42 ,  H01Q5/10 ,  H01Q1/32 ,  H01Q21/06 ,  H01Q7/00

Abstract: An antenna device includes a ground plate, a patch section parallel to, and spaced apart from, the ground plate, a first short circuit section having a plurality of first conductive elements that electrically connect the patch section and the ground plate, and a second short circuit section having a plurality of second conductive elements electrically connected at one end to the ground plate. The plurality of first conductive elements are arranged in a circle with a first radius from a patch center point and provide a preset inductance. The plurality of second conductive elements are arranged in a circle with a second radius from the patch center point and provide a preset inductance.

公开(公告)号：US20180350241A1

公开(公告)日：2018-12-06

申请号：US15768417

申请日：2016-10-04

Applicant: DENSO CORPORATION

Inventor： Masakazu IKEDA ,  Kimiaki TANAKA ,  Hiroyuki OKUNO ,  Tatsuya HAYASHI

IPC: G08G1/16 ,  G08G1/005 ,  G01S5/00 ,  H04W4/40

CPC classification number: G08G1/166 ,  B60R21/00 ,  B60R21/34 ,  G01S5/0072 ,  G08G1/005 ,  G08G1/09 ,  G08G1/16 ,  H04W4/40

Abstract: A vehicular terminal includes: a subject-side critical area setting unit that sets an area, to which a subject terminal is movable from a current position within a predetermined time, as a subject-side critical area; an object-side critical area setting unit that sets an area, to which a pedestrian terminal is movable from a current position within the predetermined time, as an object-side critical area; a determination unit that determines whether the subject-side critical area overlaps with the object-side critical area, and determines a possibility of collision between a vehicle and a pedestrian; and a communication controller that notifies notification information via a notification unit when the possibility of collision is determined.