Patents by Inventor Osamu Kagaya

Osamu Kagaya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240145937
    Abstract: A radio wave control system includes a phase adjustment plate that transmits a radio wave from a second main surface to a first main surface and focuses the radio wave on a focal point; and a reflection plate installed at a position irradiated with the radio wave transmitted through the phase adjustment plate.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Applicant: AGC Inc.
    Inventors: Akira KUMAGAI, Keisuke ARAI, Osamu KAGAYA, Yasuo MORIMOTO
  • Publication number: 20240137075
    Abstract: A reflect array that sets a reflection angle of a radio wave to an angle that is different from an angle of specular reflection. The reflect array includes a plurality of cells arranged in an array. Each of the plurality of cells includes at least two main resonant elements and a parasitic resonant element coupled to the at least two main resonant elements. The parasitic resonant element is configured to adjust a resonant frequency of the parasitic resonant element and adjust a reflection phase of a surface of the reflect array by adjusting a resonant frequency of the at least two main resonant elements each adjacent to the parasitic resonant element, to which the parasitic resonant element is coupled.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Applicant: AGC Inc.
    Inventors: Akira KUMAGAI, Kotaro ENOMOTO, Osamu KAGAYA, Yutaka UI
  • Patent number: 11967768
    Abstract: A slot array antenna includes a dielectric layer, a power feeding unit, a first coplanar waveguide formed in a conductor layer provided on one surface of the dielectric layer, and a second coplanar waveguide formed in the conductor layer, wherein each of the first coplanar waveguide and the second coplanar waveguide includes a first end part connected to a point to which the power feeding unit is connected or situated in proximity and at least one second end part connected to at least one slot formed in the conductor layer.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: April 23, 2024
    Assignee: AGC INC.
    Inventors: Qiang Chen, Osamu Kagaya, Toshiki Sayama, Takeshi Motegi
  • Patent number: 11949160
    Abstract: A distributed antenna includes a strip member extending in a strip-like shape including a dielectric body of a plate shape having a first surface that is one surface of the dielectric body and a second surface that is opposite to the first surface; a transmission line provided on the first surface, on the second surface, or between the first surface and the second surface; and a plurality of antenna elements electrically connected to the transmission line and disposed in a distributed manner on the first surface or on the second surface, or electrically connected to the transmission line and disposed in a distributed manner between the first surface and the second surface.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: April 2, 2024
    Assignee: AGC Inc.
    Inventors: Akira Kumagai, Yasuo Morimoto, Takeshi Motegi, Keisuke Arai, Osamu Kagaya
  • Publication number: 20240089011
    Abstract: An optical transceiver includes an attenuation mechanism capable of attenuating the electromagnetic waves in an intermediate space of the interior space. The interior space is continuous in a first direction between the photoelectric device and the optical connector, the interior space being surrounded with a conductive surface from every direction perpendicular to the first direction. The attenuation mechanism is a post structure including some conductive posts electrically continuous to the conductive surface, the conductive posts extending in a second direction perpendicular to the first direction, the conductive posts being arranged at some points in a plan view along the second direction, the points being at vertices of some quadrangles, adjacent quadrangles of which share one side with each other, the quadrangles being arranged in the first direction, the optical fiber passing through at least one adjacent pair of the quadrangles in the first direction.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 14, 2024
    Inventors: Osamu KAGAYA, Hiroyoshi ISHII
  • Publication number: 20240063536
    Abstract: A reflector system, an active reflector, and a method of positioning an active reflector are provided, whereby dead zones can be cancelled efficiently. The reflector system includes: a first active reflector having a first reflecting surface configured to reflect, at a variable reflecting angle, radio waves transmitted from a transmitter, at least a part of the first reflecting surface being in a boundary area located at a boundary between a line-of-sight area and a non-line-of-sight area formed by one or more obstacles that block the radio waves from the transmitter; and a second active reflector having a second reflecting surface configured to reflect, at a variable reflecting angle, the radio waves from the transmitter or the radio waves reflected by the first active reflector, the second reflecting surface being provided in the non-line-of-sight area, or at least a part of the second reflecting surface being provided in the boundary area.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Applicant: AGC Inc.
    Inventors: Kouichirou TAKAHASHI, Osamu KAGAYA, Akira KUMAGAI, Shimpei NAGAE
  • Patent number: 11894625
    Abstract: An antenna includes an antenna conductor to be provided on an exterior side of a chassis and a flexible substrate. The flexible substrate includes a first insulating portion that is a portion of a sheet-shaped dielectric where the sheet-shaped dielectric is folded, a grounding conductor provided between the first insulating portion and the chassis, a second insulating portion that is a portion of the sheet-shaped dielectric where the sheet-shaped dielectric is not folded, and a signal line configured to feed power to the antenna conductor. A thickness of the first insulating portion is greater than a thickness of the second insulating portion.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: February 6, 2024
    Assignee: AGC Inc.
    Inventors: Yasuo Morimoto, Takeshi Motegi, Toshiki Sayama, Motoshi Ono, Osamu Kagaya
  • Publication number: 20230411863
    Abstract: A protective plate-equipped reflective member includes a reflective member that reflects or re-radiates a radio wave incident thereon; and a protective plate that is installed on a radio wave-incident side of the reflective member, wherein d=?×?0/(1.75×?r0.555) and ? is greater than or equal to 1 and less than or equal to 1.25, where a wavelength specified with respect to an operating center frequency f0 [Hz] is denoted by ?0 [mm], a plate thickness of the protective plate is denoted by d [mm], a relative permittivity of the protective plate at the operating center frequency f0 [Hz] is denoted by ?r, and a constant is denoted by ?.
    Type: Application
    Filed: August 30, 2023
    Publication date: December 21, 2023
    Applicant: AGC Inc.
    Inventors: Kouichirou TAKAHASHI, Osamu KAGAYA, Akira KUMAGAI, Shimpei NAGAE
  • Publication number: 20230331620
    Abstract: To provide a glass plate for a window material and a window comprising the glass plate, which are less likely to be a barrier to radio transmitting/receiving in use of a radio-utilizing apparatus, and a radio communication apparatus comprising the glass plate. A glass plate having a radio transmittance of at least 20% at a frequency of 100 GHz as calculated as 18 mm thickness, a window comprising the glass plate, and a radio communication apparatus comprising the glass plate.
    Type: Application
    Filed: March 13, 2023
    Publication date: October 19, 2023
    Applicant: AGC Inc.
    Inventors: Eriko Maeda, Takato Kajihara, Kensuke Nagai, Yutaka Kuroiwa, Osamu Kagaya, Ryuta Sonoda, Hiroyuki Hijiya
  • Patent number: 11792915
    Abstract: A printed circuit board includes: a conductor plate below the inner dielectric layer; some vias through the inner dielectric layer, bonded to the conductor plate, centered at respective points on an upper surface of the conductor plate; a ground conductor above the inner dielectric layer, bonded to the vias, extending outwardly from any quadrangle with vertices being the nearest four points of the points; an electromagnetic resonance plate above the inner dielectric layer and inside the quadrangle, electrically connected to the ground conductor and the vias with a portion other than a protruding outer edge serving as a junction; an upper dielectric layer above the electromagnetic resonance plate; and a differential transmission line pair composed of a pair of strip conductors overlapping with the electromagnetic resonance plate, above the upper dielectric layer. The conductor plate and the vias constitute an electromagnetic field confinement structure.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: October 17, 2023
    Assignee: CIG PHOTONICS JAPAN LIMITED
    Inventor: Osamu Kagaya
  • Publication number: 20230212059
    Abstract: To provide a glass plate for a window material and a window comprising the glass plate, which are less likely to be a barrier to radio transmitting/receiving in use of a radio-utilizing apparatus, and a radio communication apparatus comprising the glass plate. A glass plate having a radio transmittance of at least 20% at a frequency of 100 GHz as calculated as 18 mm thickness, a window comprising the glass plate, and a radio communication apparatus comprising the glass plate.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Applicant: AGC Inc.
    Inventors: Eriko Maeda, Takato Kajihara, Kensuke Nagai, Yutaka Kuroiwa, Osamu Kagaya, Ryuta Sonoda, Hiroyuki Hijiya
  • Patent number: 11658386
    Abstract: An antenna unit for glass according to the present invention is installed on the indoor side of a glass sheet, and transmits and receives electromagnetic waves at the indoor side through the glass sheet.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: May 23, 2023
    Assignees: AGC Inc., NTT DOCOMO, INC.
    Inventors: Tetsuya Hiramatsu, Ryuta Sonoda, Osamu Kagaya, Kentaro Oka, Akira Saito, Kensuke Miyachi, Akinobu Ueda, Yoshiyuki Kawano, Jun Andou, Taku Yamazaki
  • Patent number: 11634353
    Abstract: To provide a glass plate for a window material and a window comprising the glass plate, which are less likely to be a barrier to radio transmitting/receiving in use of a radio-utilizing apparatus, and a radio communication apparatus comprising the glass plate. A glass plate having a radio transmittance of at least 20% at a frequency of 100 GHz as calculated as 18 mm thickness, a window comprising the glass plate, and a radio communication apparatus comprising the glass plate.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: April 25, 2023
    Assignee: AGC Inc.
    Inventors: Eriko Maeda, Takato Kajihara, Kensuke Nagai, Yutaka Kuroiwa, Osamu Kagaya, Ryuta Sonoda, Hiroyuki Hijiya
  • Patent number: 11522294
    Abstract: An antenna system includes a glass plate having a thickness of 1.1 mm or more and a dielectric loss tangent of 0.005 or more at 28 GHz, and an antenna located away from one of surfaces of the glass plate, wherein a ratio of electric power radiated from the antenna to electric power input into the antenna is defined as a radiation efficiency, and when an effective wavelength of an electromagnetic wave at a predetermined frequency is 10 GHz or more is denoted as ?g and the radiation efficiency as ?0 [dB] when the glass plate and the antenna are in contact, and is denoted as ??g/2 [dB] when a distance between the one of the surfaces and the antenna is ?g/2, the glass plate and the antenna are arranged to obtain the radiation efficiency of ?A [dB] that satisfies ?A??0+(??g/2??0)×0.1.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: December 6, 2022
    Assignee: AGC INC.
    Inventors: Toshiki Sayama, Ryota Okuda, Takeshi Motegi, Osamu Kagaya
  • Publication number: 20220344832
    Abstract: An antenna device includes a flexible substrate, an antenna element provided on a front surface or a rear surface of the flexible substrate, a feeding line provided on the front surface or the rear surface of the flexible substrate to feed power to the antenna element, a dielectric in a plate shape stacked on a rear side of the flexible substrate, the dielectric having flexibility and being bendable, and a reflector plate provided on a rear side of the dielectric.
    Type: Application
    Filed: July 12, 2022
    Publication date: October 27, 2022
    Applicant: AGC Inc.
    Inventors: Toshiki SAYAMA, Takeshi MOTEGI, Akira KUMAGAI, Yasuo MORIMOTO, Osamu KAGAYA, Keisuke ARAI
  • Publication number: 20220279644
    Abstract: A printed circuit board includes: a conductor plate below the inner dielectric layer; some vias through the inner dielectric layer, bonded to the conductor plate, centered at respective points on an upper surface of the conductor plate; a ground conductor above the inner dielectric layer, bonded to the vias, extending outwardly from any quadrangle with vertices being the nearest four points of the points; an electromagnetic resonance plate above the inner dielectric layer and inside the quadrangle, electrically connected to the ground conductor and the vias with a portion other than a protruding outer edge serving as a junction; an upper dielectric layer above the electromagnetic resonance plate; and a differential transmission line pair composed of a pair of strip conductors overlapping with the electromagnetic resonance plate, above the upper dielectric layer. The conductor plate and the vias constitute an electromagnetic field confinement structure.
    Type: Application
    Filed: January 31, 2022
    Publication date: September 1, 2022
    Inventor: Osamu KAGAYA
  • Publication number: 20220255234
    Abstract: A distributed antenna includes a strip member extending in a strip-like shape including a dielectric body of a plate shape having a first surface that is one surface of the dielectric body and a second surface that is opposite to the first surface; a transmission line provided on the first surface, on the second surface, or between the first surface and the second surface; and a plurality of antenna elements electrically connected to the transmission line and disposed in a distributed manner on the first surface or on the second surface, or electrically connected to the transmission line and disposed in a distributed manner between the first surface and the second surface.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Applicant: AGC Inc.
    Inventors: Akira KUMAGAI, Yasuo MORIMOTO, Takeshi MOTEGI, Keisuke ARAI, Osamu KAGAYA
  • Patent number: 11294129
    Abstract: In an optical module, optical signal output having satisfactory waveform and intensity can be obtained. A differential transmission line includes a first differential transmission line, which has a first characteristic impedance and is connected to a drive IC, a second differential transmission line, which has a second characteristic impedance and is connected to a light output element, the second characteristic impedance being smaller than the first characteristic impedance, and connecting portions configured to connect the first differential transmission line and the second differential transmission line in series with each other. A resistive element is arranged between the connecting portions. The resistive element has a resistance value that is set to a value with which an absolute value of a reflection coefficient for a signal traveling from the second differential transmission line side to the first differential transmission line side is 0.10 or less.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 5, 2022
    Assignee: CIG PHOTONICS JAPAN LIMITED
    Inventor: Osamu Kagaya
  • Publication number: 20220102864
    Abstract: An antenna includes an antenna conductor to be provided on an exterior side of a chassis and a flexible substrate. The flexible substrate includes a first insulating portion that is a portion of a sheet-shaped dielectric where the sheet-shaped dielectric is folded, a grounding conductor provided between the first insulating portion and the chassis, a second insulating portion that is a portion of the sheet-shaped dielectric where the sheet-shaped dielectric is not folded, and a signal line configured to feed power to the antenna conductor. A thickness of the first insulating portion is greater than a thickness of the second insulating portion.
    Type: Application
    Filed: December 8, 2021
    Publication date: March 31, 2022
    Applicant: AGC Inc.
    Inventors: Yasuo MORIMOTO, Takeshi MOTEGI, Toshiki SAYAMA, Motoshi ONO, Osamu KAGAYA
  • Patent number: 11234326
    Abstract: Provided is a printed circuit board realizing selective inhibition of electromagnetic noise and enabling high-density arrangement of differential transmission lines without increasing cost. The printed circuit board includes a pair of strip conductors (first layer), a first resonance conductor plate, a ground conductive layer (together with a second layer) including an opening portion, a second resonance conductor plate (third layer), a third resonance conductor plate (fourth layer), first via holes connecting the first and second resonance conductor plates, a second via hole connecting the second and third resonance conductor plates, and third via holes connecting the third resonance conductor plate and the ground conductive layer, wherein a polygon obtained by sequentially connecting centers of the adjacent third via holes overlaps so as to include the first resonance conductor plate, and center-to-center distance between the adjacent third via holes is 0.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: January 25, 2022
    Assignee: Lumentum Japan, Inc.
    Inventor: Osamu Kagaya