Patents by Inventor Akira Kumagai

Akira Kumagai 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: 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: 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
  • 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: 20220352620
    Abstract: An antenna device including a transparent antenna element that can be provided at a position visible from outside of a transparent cover of an electronic apparatus is provided. An antenna device includes a flexible substrate that is transparent and that is to be provided on an inner surface side opposite to an outer surface of a transparent cover, made of glass or resin, of an electronic apparatus, and an antenna element that is transparent and that is to be provided at a position, of the flexible substrate, that is visible from outside of the transparent cover, the antenna element having a directivity oriented toward an outside of the electronic apparatus.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Applicant: AGC Inc.
    Inventors: Yasuo MORIMOTO, Akira KUMAGAI, Takeshi MOTEGI, Kazuhiko NIWANO, Kouichirou TAKAHASHI
  • 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: 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: 11272579
    Abstract: Provided is a heat generating component of which volume resistivity hardly varies even if used repeatedly at a high temperature for a long period of time. Since a thin coating heater part (13) formed on a substrate part (12) is composed of a thermal sprayed coating containing TixOy (wherein, 0<y/x<2.0 is satisfied), obtained is a heat generating component (11) having volume resistivity which is suitable for a heater and hardly varies even if prescribed temperature change and temperature keeping are repeated.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: March 8, 2022
    Assignee: TOCALO CO., LTD.
    Inventors: Shikou Abukawa, Kensuke Taguchi, Toru Moriyama, Yasuhiro Sato, Akira Kumagai, Yu Asakimori
  • Patent number: 10882329
    Abstract: A thermal head X1 according to the present disclosure includes a substrate, a heat generator, an electrode, and a protective layer. The heat generator is positioned on the substrate. The electrode is positioned on the substrate and connected to the heat generator. The protective layer covers the heat generator and part of the electrode. The protective layer contains titanium and nitrogen. The protective layer satisfies P2>P1 where P1 is the peak intensity of X-ray diffraction of the (111) plane, and P2 is the peak intensity of X-ray diffraction of the (200) plane.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 5, 2021
    Assignee: Kyocera Corporation
    Inventors: Akira Kumagai, Hironari Abe
  • Publication number: 20200101761
    Abstract: A thermal head X1 according to the present disclosure includes a substrate, a heat generator, an electrode, and a protective layer. The heat generator is positioned on the substrate. The electrode is positioned on the substrate and connected to the heat generator. The protective layer covers the heat generator and part of the electrode. The protective layer contains titanium and nitrogen. The protective layer satisfies P2>P1 where P1 is the peak intensity of X-ray diffraction of the (111) plane, and P2 is the peak intensity of X-ray diffraction of the (200) plane.
    Type: Application
    Filed: March 23, 2018
    Publication date: April 2, 2020
    Applicant: KYOCERA Corporation
    Inventors: Akira KUMAGAI, Hironari ABE
  • Publication number: 20190327790
    Abstract: Provided is a heat generating component of which volume resistivity hardly varies even if used repeatedly at a high temperature for a long period of time. Since a thin coating heater part (13) formed on a substrate part (12) is composed of a thermal sprayed coating containing TixOy (wherein, 0<y/x<2.0 is satisfied), obtained is a heat generating component (11) having volume resistivity which is suitable for a heater and hardly varies even if prescribed temperature change and temperature keeping are repeated.
    Type: Application
    Filed: June 2, 2017
    Publication date: October 24, 2019
    Inventors: Shikou ABUKAWA, Kensuke TAGUCHI, Toru MORIYAMA, Yasuhiro SATO, Akira KUMAGAI, Yu ASAKIMORI
  • Publication number: 20190124918
    Abstract: Provided is a biofilm formation inhibitor causing no damage to pipes and instruments and being safe to humans. A biofilm formation inhibitor comprises at least one quinone compound selected from the group consisting of a hydroquinone substituted by a hydroxyl group or an alkyl group, a p-benzoquinone substituted by a hydroxyl group or an alkyl group and a C1 to C5 alkyl resorcinol, as an active ingredient. A biofilm formation inhibition composition comprises a quinone-based compound and a chelating agent. A method for inhibiting biofilm formation comprising adding a quinone-based compound and a chelating agent in an aqueous liquid. A biofilm formation inhibition composition comprises a quinone-based compound and an organic solvent. A method for inhibiting biofilm formation comprises adding the biofilm formation inhibition composition in an aqueous liquid.
    Type: Application
    Filed: May 30, 2017
    Publication date: May 2, 2019
    Applicant: KAO CORPORATION
    Inventors: Mitsuru SUGIYAMA, Hirofumi TAKIGAWA, Kenji SASAKI, Masashi CHIBA, Akira KUMAGAI
  • Patent number: 9740564
    Abstract: An information device has a storage medium storing information items which includes a first program provided on a first partition, a second program and data provided on a second partition to restore the first program on the first partition to a predetermined state, a boot block which causes system activation from one of the first partition and the second partition, and an active-partition switching program which indicates, to the boot block, one of the first and second partitions. An input/output system activates the active-partition switching program when a specific operation is performed. The active-partition switching program indicates to the boot block that system activation is to be executed from the second partition.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: August 22, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Akira Kumagai
  • Patent number: 9503670
    Abstract: According to one embodiment, an electronic apparatus includes a data receiver, processing circuitry and an operation information receiver. The data receiver receives first data for displaying an image. The processing circuitry displays, using the first data, the image on a screen of a display. The operation information receiver receives operation information indicating that one of a plurality of buttons provided at a remote control is pressed. The processing circuitry displays, based on the operation information, an enlarged image of a first area of a plurality of divided areas of the image on the screen.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: November 22, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenichi Taniuchi, Kazuhiko Kashiwagi, Akira Kumagai, Yuuichiro Aso, Hirokazu Kato
  • Publication number: 20150172774
    Abstract: According to one embodiment, an electronic apparatus includes a receiver, processing circuitry, and a transmitter. The receiver receives first data and second data from a server, the first data being for displaying an image of a first item, the second data being for displaying a graphical user interface relating to the first item. The processing circuitry displays the graphical user interface on a screen by using the second data. The processing circuitry generates first video data for displaying the image on an external display by using the first data. The transmitter transmits the first video data to the external display.
    Type: Application
    Filed: October 9, 2014
    Publication date: June 18, 2015
    Inventors: Kenichi Taniuchi, Kazuhiko Kashiwagi, Akira Kumagai, Yuuichiro Aso
  • Publication number: 20150156443
    Abstract: According to one embodiment, an electronic apparatus includes a data receiver, processing circuitry and an operation information receiver. The data receiver receives first data for displaying an image. The processing circuitry displays, using the first data, the image on a screen of a display. The operation information receiver receives operation information indicating that one of a plurality of buttons provided at a remote control is pressed. The processing circuitry displays, based on the operation information, an enlarged image of a first area of a plurality of divided areas of the image on the screen.
    Type: Application
    Filed: October 7, 2014
    Publication date: June 4, 2015
    Inventors: Kenichi Taniuchi, Kazuhiko Kashiwagi, Akira Kumagai, Yuuichiro Aso, Hirokazu Kato
  • Patent number: 9039813
    Abstract: The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. A portion of the sealed vessel lower than the partition is an absorbing liquid storage portion, and a portion of the sealed vessel upper than the partition is an exhaust gas introducing portion. The partition is provided with a large number of sparger pipes so that the sparger pipes reach inside an absorbing liquid stored in the absorbing liquid storage portion. The partition is provided with a single gas riser in communication with a space upper than the absorbing liquid in the absorbing liquid storage portion. An upper end of the gas riser passes through a top plate portion of the sealed vessel and protrudes upward.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: May 26, 2015
    Assignee: CHIYODA CORPORATION
    Inventors: Noboru Takei, Sohsuke Kido, Naohiro Kaji, Akira Kumagai
  • Patent number: 8961666
    Abstract: The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. The partition is provided with a gas riser for deriving treated exhaust gas from an upper space of the absorbing liquid storage portion. A large number of sparger pipes are provided in a effective region, so as to reach inside an absorbing liquid stored in the absorbing liquid storage portion. A non-jet region is provided in the effective region. The froth layer is not formed in the non-jet region, and the absorbing liquid in a foamed state flows down from the froth layer therearound to circulate the absorbing liquid.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: February 24, 2015
    Assignee: Chiyoda Corporation
    Inventors: Noboru Takei, Sohsuke Kido, Naohiro Kaji, Akira Kumagai
  • Publication number: 20150046749
    Abstract: An information device has a storage medium storing information items which includes a first program provided on a first partition, a second program and data provided on a second partition to restore the first program on the first partition to a predetermined state, a boot block which causes system activation from one of the first partition and the second partition, and an active-partition switching program which indicates, to the boot block, one of the first and second partitions. An input/output system activates the active-partition switching program when a specific operation is performed. The active-partition switching program indicates to the boot block that system activation is to be executed from the second partition.
    Type: Application
    Filed: September 8, 2014
    Publication date: February 12, 2015
    Inventor: Akira Kumagai