Patents Assigned to Yokowo Co., Ltd.
  • Patent number: 10978794
    Abstract: An antenna device to be mounted to a vehicle roof, includes: a case unit having an accommodating space formed therein and having a radio wave permeability; and an antenna unit to be accommodated in the accommodating space, wherein the antenna unit has: a pair of capacitance loading elements facing across a plane, as a center, perpendicular to the vehicle roof at a predetermined interval and at a predetermined angle to each other; a coupling portion provided at a portion lower than an upper edge of the pair of the capacitance loading elements to conduct each of the pair of capacitance loading elements each other via each of the coupling portions; and a helical element electrically connected to the coupling portions.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 13, 2021
    Assignee: YOKOWO CO., LTD.
    Inventors: Noritaka Terashita, Motohisa Ono, Yuki Kato
  • Patent number: 10976346
    Abstract: A socket includes: a contact probe; and an insulating support body supporting the contact probe. The contact probe includes: a first plunger to be connected with an object to be inspected; a second plunger to be connected with an inspecting board; and a spring configured to urge the first plunger and the second plunger in a direction apart from each other. In a state where a tip end of the first plunger is released, a projecting amount of the second plunger from the insulating support body is zero with a natural length of the spring.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: April 13, 2021
    Assignee: YOKOWO CO., LTD.
    Inventors: Tsugio Yamamoto, Kenichi Sato, Takayoshi Okuno
  • Publication number: 20210091480
    Abstract: A patch antenna includes: a radiating element having a flat-plate shape; and a parasitic element provided at a position spaced away from the radiating element in planar view in which the radiating element is seen from a direction perpendicular to a plate surface of the radiating element. A longitudinal direction of the parasitic element is oriented along a direction of a line segment connecting a center of the radiating element and a feeding point in the planar view.
    Type: Application
    Filed: February 7, 2019
    Publication date: March 25, 2021
    Applicant: YOKOWO CO., LTD.
    Inventor: Takeshi SAMPO
  • Patent number: 10950930
    Abstract: An antenna device has a configuration in which a feeding point is located at a position that is distant from an outer periphery of a ground conductor plate to a center side and that would correspond to polarized waves parallel to the ground conductor plate. The antenna devices includes a ground conductor plate and an antenna element. The antenna element includes a first vertical portion and a second vertical portion which are erected substantially perpendicularly from the ground conductor plate and a first parallel portion, a second parallel portion, and a third parallel portion which extend substantially parallel to the ground conductor plate. An end portion, in the ?Z direction, of the first vertical portion serves as a feeding point and is located at a position that is distant from an outer periphery of the ground conductor plate to a center side.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: March 16, 2021
    Assignee: YOKOWO CO., LTD.
    Inventor: Takeshi Sampo
  • Publication number: 20210075095
    Abstract: An antenna device for vehicle that is attached to a roof of a vehicle, the antenna device for vehicle including: an antenna base; an antenna case covering the antenna base from above; and an antenna element provided inside the antenna case, wherein the antenna base has a metal base fixed to the roof, and a metal plate electrically connected to the metal base.
    Type: Application
    Filed: December 20, 2018
    Publication date: March 11, 2021
    Applicant: YOKOWO CO., LTD.
    Inventors: Noritaka TERASHITA, Yusuke YOKOTA, Takashi KANEKO
  • Publication number: 20210066794
    Abstract: An antenna device for vehicle includes: an antenna element; an external connection terminal; a connection detection resistor having one end being grounded and having another end being connected with the external connection terminal, the connection detection resistor being connected in parallel with the antenna element; and a protection circuit having a capacitor, the capacitor having one end being grounded and having another end being connected with the external connection terminal, the capacitor being connected in parallel with the connection detection resistor, the protection circuit conducting a surge current from the external connection terminal to a ground side.
    Type: Application
    Filed: January 8, 2019
    Publication date: March 4, 2021
    Applicant: YOKOWO CO., LTD.
    Inventors: Noritaka TERASHITA, Motohisa ONO
  • Publication number: 20210066808
    Abstract: The present invention provides a small low-profile antenna device for a vehicle, the antenna device being able to achieve bandwidth widening and increase gain in a horizontal direction by being fixed to a predetermined part of the vehicle. The antenna device for a vehicle includes a metal surface and a slot 110 is formed in the metal surface with a slit 111 provided at a part of edges of the slot 110. The slot faces a direction parallel to the ground with a first power feed unit G1 being provided on inner edges of the slot. A slot 120, in which the slit 111 is provided, operates as a slot antenna adapted to transmit or receive signals in four or more frequency bands.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 4, 2021
    Applicant: YOKOWO CO., LTD.
    Inventor: Masato TANAKA
  • Patent number: 10938095
    Abstract: A vehicle antenna device includes an antenna base, an antenna case that covers the antenna base, and an antenna element positioned inside the antenna case and including a capacitive element and a coil element. The coil element includes a supporting body and a winding held by the supporting body, and the supporting body has a support area and projections that are formed along an axial direction of the coil element and hold the winding in the support area.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: March 2, 2021
    Assignee: YOKOWO CO., LTD.
    Inventors: Sadao Ohno, Kengo Osawa
  • Publication number: 20210058107
    Abstract: A high-frequency switch includes an input interface configured to receive a high-frequency signal; an output interface configured to output the high-frequency signal to outside; and a reactance switch inserted between the input interface and the output interface. The reactance switch includes a plurality of reactance circuits connected in a cascade arrangement between the input interface and the output interface. Each of the plurality of reactance circuits is configured to form a common passband for the high-frequency signal based on a reactance of a respective predetermined values, and at least one of the reactance circuits is a variable reactance circuit having a reactance which changes in response to a control signal input from the outside so that the passband of the variable reactance circuit changes.
    Type: Application
    Filed: December 11, 2018
    Publication date: February 25, 2021
    Applicant: YOKOWO CO., LTD.
    Inventors: Yoshio AOKI, Akihiro NAKAMURA
  • Publication number: 20210050647
    Abstract: Provided is an antenna device for a vehicle capable of firmly fixing a capacitance loading element. An antenna device 1 for a vehicle includes: an antenna case 5; a capacitance loading element 20 housed in an internal space of the antenna case 5; a capacitance loading element holder 10 including an upper holder 11 and a lower holder 12 and configured to sandwich and hold the capacitance loading element 20 between the upper holder 11 and the lower holder 12; and a metal base 50 configured to hold the lower holder 12. The capacitance loading element 20 includes two elements and a connecting portion that connects the two elements, the connecting portion is provided at a position lower than upper edges of the two elements, the upper holder 11 holds the two elements, and the upper holder 11 and the lower holder 12 sandwich and hold the connecting portion.
    Type: Application
    Filed: February 15, 2019
    Publication date: February 18, 2021
    Applicant: YOKOWO CO., LTD.
    Inventors: Masayuki TAKANO, Yoshinori TAKAHASHI
  • Publication number: 20210044006
    Abstract: An antenna device for a vehicle, the antenna device includes; an antenna; a camera; and a case that accommodates the antenna and the camera, wherein the antenna includes a capacitance loading element disposed at a position separate from the camera, and when the capacitance loading element is divided into a short-distance-side portion and a long-distance-side portion based on a distance from the camera, a length of a first portion of the short-distance-side portion is shorter than a length of a second portion of the short-distance-side portion in a height direction, in which the first portion overlaps the camera in top view and/or side view while the second portion does not overlap the camera in top view and/or side view.
    Type: Application
    Filed: February 7, 2019
    Publication date: February 11, 2021
    Applicant: YOKOWO CO., LTD.
    Inventors: Masaru SHIMIZU, Tsuyoshi KOMORI, Yuzou HARADA
  • Patent number: 10904709
    Abstract: There is provided a transmission/reception device that suppresses communication in a situation with low necessity. The transmission/reception device 1 includes a first antenna 11 for performing first communication, a control unit, and a recording unit 39 in which related information of a mobile terminal is registered. The transmission/reception device is mounted in a vehicle. The control unit 33 performs a control to suppress the first communication for the mobile terminal when determining that the mobile terminal is located in an interior of the vehicle based on at least one of a communication result of the first communication and a communication result of second communication with the mobile terminal in which the related information is registered in the recording unit 39.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: January 26, 2021
    Assignee: YOKOWO CO., LTD.
    Inventor: Tetsuji Sawai
  • Publication number: 20200393496
    Abstract: Provided is a probe head capable of reducing an inductance value of a ground probe. In a probe head 1, a pin plate 40, a pin block 50, and a solder resist film 60 are stacked in this order from a measuring instrument side to be integrally formed, and constitute a support body that supports a signal probe 10 and a first ground probe 20. The pin plate 40 is an insulator. The pin block 50 is a conductor, and is electrically connected to the first ground probe 20 and a measuring instrument-side ground, and is not electrically connected to the signal probe 10. The solder resist film 60 is provided on the surface of the pin block 50 on a side of a device to be inspected, and is interposed between the pin block 50 and the device to be inspected.
    Type: Application
    Filed: November 6, 2018
    Publication date: December 17, 2020
    Applicant: YOKOWO CO., LTD.
    Inventors: Yoshihiko SAKURAI, Hiroshi ISHIGURE, Daisuke HOSOKAWA
  • Patent number: 10866265
    Abstract: The inspection jig includes a rigid substrate, a flexible substrate connected to the rigid substrate, a support for supporting a part of the flexible substrate in a state that the part of the flexible substrate is protruded with respect to the rigid substrate, and a stretchable contactor provided on a protruding portion of the flexible substrate.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 15, 2020
    Assignee: YOKOWO CO., LTD.
    Inventor: Takahiro Nagata
  • Publication number: 20200350663
    Abstract: An antenna apparatus includes a signal processing section having a first processing unit for calculating position information of a vehicle to which a first antenna element is attached, a second processing unit for performing mobile communication, a third processing unit for receiving information from outside of the vehicle and transmitting information that pertains to the vehicle, and a fourth processing unit for receiving a digital broadcast; an antenna element section having the first antenna element to a fourth antenna element; and a transceiver unit connected to a gateway ECU of the vehicle through an onboard LAN. The first antenna element to the fourth antenna element are covered with an antenna case. The first to fourth processing units are accommodated in a housing arranged at a position closer to the antenna element section than the gateway ECU.
    Type: Application
    Filed: August 29, 2018
    Publication date: November 5, 2020
    Applicant: YOKOWO CO., LTD.
    Inventors: Tomio AMBE, Hirotoshi MIZUNO
  • Publication number: 20200350688
    Abstract: A novel small-sized low profile antenna device that replaces a monopole antenna is provided. The antenna device is attached to a vehicle, the vehicle has an attachment surface, and the antenna device includes plural metal surfaces provided on a plane generally orthogonal to the attachment surface, the plural metal surfaces being formed at different angles from each other. A section of the antenna device opposed to the attachment surface is open, and each of the metal surfaces is formed with at least either one of a slot antenna and a slit antenna for a vertically polarized wave.
    Type: Application
    Filed: February 13, 2019
    Publication date: November 5, 2020
    Applicant: YOKOWO CO., LTD.
    Inventors: Tomio AMBE, Atsushi EIKA
  • Publication number: 20200300889
    Abstract: A first signal line pattern has one end electrically connected to a first connector. A second signal line pattern has one end electrically connected to a second connector. The second signal line pattern has the other end facing the other end of the first signal line pattern. A conductive block has a convex portion. The convex portion of the conductive block is electrically connected to a third portion of the conductive pattern positioned between the other end of the first signal line pattern and the other end of the second signal line pattern of the wiring board.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 24, 2020
    Applicant: YOKOWO CO., LTD.
    Inventors: Masaki NOGUCHI, Takahiro NAGATA, Tsuyoshi YAMATO
  • Publication number: 20200295444
    Abstract: A patch antenna includes a flat-plate radiating element; and a metal wall provided outside a peripheral edge of the radiating element, such that a wall surface of the metal wall intersects a line connecting a center of the radiating element and a feeding point. An antenna device for a vehicle includes: the patch antenna; a housing installed in a predetermined orientation at a predetermined position of the vehicle; and a support supporting the patch antenna such that the patch antenna is used for vertically polarized waves when the housing is installed in the predetermined orientation at the predetermined position.
    Type: Application
    Filed: August 1, 2018
    Publication date: September 17, 2020
    Applicant: YOKOWO CO., LTD.
    Inventor: Takeshi SAMPO
  • Publication number: 20200292764
    Abstract: This optical module comprises a stem; lead pins extending through the stem; glasses filled between the stem and the lead pins; elements (photodiode, amplifier) disposed on a first main surface of the stem, and connected to the lead pins; FPC in contact with a second main surface of the stem; a cap attachable to the stem; and an aligning-fixing parts (metal-made flange, Z-sleeve) that aligns an optical fiber stub with the cap and fix the optical fiber stub to the cap.
    Type: Application
    Filed: July 11, 2017
    Publication date: September 17, 2020
    Applicant: Yokowo Co., Ltd.
    Inventors: Hideki KAMITSUNA, Akira OHKI
  • Publication number: 20200296546
    Abstract: There is provided a transmission/reception device that suppresses communication in a situation with low necessity. The transmission/reception device 1 includes a first antenna 11 for performing first communication, a control unit, and a recording unit 39 in which related information of a mobile terminal is registered. The transmission/reception device is mounted in a vehicle. The control unit 33 performs a control to suppress the first communication for the mobile terminal when determining that the mobile terminal is located in an interior of the vehicle based on at least one of a communication result of the first communication and a communication result of second communication with the mobile terminal in which the related information is registered in the recording unit 39.
    Type: Application
    Filed: August 28, 2018
    Publication date: September 17, 2020
    Applicant: YOKOWO CO., LTD.
    Inventor: Tetsuji SAWAI