Patents by Inventor Yukio Takahashi

Yukio Takahashi 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: 20220416414
    Abstract: To suppress downward radiation of electromagnetic waves from an antenna unit. An antenna unit to be used by being installed so as to face a window glass for a building, the antenna unit comprising a plurality of array antennas, wherein each of the plurality of array antennas has a plurality of radiating elements and at least one conductor situated on an interior side relative to the plurality of radiating elements, and where the effective wavelength of the plurality of array antennas at the operation frequency is ?, and an integer of 0 or more is n, the distance from the center of the upper radiating element among the plurality of radiating elements to the upper edge of the conductor in the up-and-down direction is (0.5+n)?±0.22?, as seen in a plan view of the antenna unit.
    Type: Application
    Filed: September 6, 2022
    Publication date: December 29, 2022
    Applicant: AGC Inc.
    Inventors: Yukio TAKAHASHI, Masaki HORIE, Ryuta SONODA
  • Patent number: 11517603
    Abstract: The present invention provides a preventing or improving agent that can favorably promote bone formation, is effective in preventing or improving osteoporosis or a decrease in bone strength, has high safety, and is suitable for long-term continuous ingestion or administration, by forming a bone remodeling accelerator comprising one or more kinds selected from the group consisting of flavanone and a glycoside thereof.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 6, 2022
    Assignee: HOKURIKU UNIVERSITY
    Inventors: Masakazu Miura, Tatsuo Takahashi, Hirokazu Suzuki, Yukio Kawata, Shoko Kitade, Mako Takenaka, Masanori Ohmoto, Yuki Sato
  • Patent number: 11493669
    Abstract: An anti-reflective structural body is constituted of an integrally molded article and includes an anti-reflective structure formed on a base surface that constitutes an outer surface of the molded article, and the anti-reflective structure includes a plurality of recesses, each being formed to be recessed from the base surface independently of mutually adjacent recesses and having an inclined surface, which is inclined with respect to the base surface and forms at least one punctiform or linear apex portion at a bottom portion.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 8, 2022
    Assignee: OTSUKA TECHNO CORPORATION
    Inventors: Yasuyuki Okada, Hideaki Sato, Yosuke Kamikado, Yukio Takahashi, Yuta Uchiyama, Naoki Oyama, Shunsuke Morimoto
  • Publication number: 20220310316
    Abstract: In the multi-layer coil component, the hole portion is provided in the vicinity of the side surface of the element body, and the distance from the tip position of the external electrode to the hole portion is shorter than the distance from the tip position of the external electrode to the coil. Therefore, when a crack is generated starting from the tip position of the external electrode on the mounting surface, the crack progress toward the hole portion located at a distance closer than the coil. Therefore, in the multi-layer coil component, splitting of the coil due to the crack can be prevented.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 29, 2022
    Applicant: TDK CORPORATION
    Inventors: Yuya OSHIMA, Kenji KOMORITA, Masayuki SUZUKI, Yuudai KATOU, Takeru SASAKI, Shigeshi OSAWA, Takehiro ISHII, Kouichi KAKUDA, Yukio TAKAHASHI, Tsubasa OZAWA, Makoto YOSHINO
  • Publication number: 20220306541
    Abstract: A ferrite composition comprises a main component and a subcomponent. The main component includes 32.0 to 46.4 mol % of iron oxide in terms of Fe2O3, 4.4 to 14.0 mol % of copper oxide in terms of CuO, and 8.4 to 56.9 mol % of zinc oxide in terms of ZnO. The subcomponent includes 0.53 to 11.00 parts by weight of a silicon compound in terms of SiO2, 0.1 to 12.8 parts by weight of a tin compound in terms of SnO2, and 0.5 to 7.0 parts by weight of a bismuth compound in terms of Bi2O3, with respect to 100 parts by weight of the main component.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 29, 2022
    Applicant: TDK CORPORATION
    Inventors: Kouichi KAKUDA, Takashi SUZUKI, Yukio TAKAHASHI, Kunihiko KAWASAKI, Hiroyuki TANOUE, Takehiro ISHII, Takuya NIIBORI, Takahiro SATO, Akihiko OIDE, Yasuhiro ITO, Takashi ENDO, Kunio ODA
  • Patent number: 11410807
    Abstract: A ferrite composition includes main-phase particles, first sub-phase particles, second sub-phase particles, and a grain boundary. At least 10% or more of the main-phase particles contain a portion whose Zn concentrations monotonously decrease from a particle surface toward a particle central part along a length of 50 nm or more. The first sub-phase particles contain Zn2SiO4. The second sub-phase particles contain SiO2. A total area ratio of the first sub-phase particles and the second sub-phase particles is 30.5% or more.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: August 9, 2022
    Assignee: TDK CORPORATION
    Inventors: Takeshi Shibayama, Takashi Suzuki, Yukio Takahashi
  • Patent number: 11373789
    Abstract: A ferrite sintered body of the invention includes; a main component including 48.65 to 49.45 mol % of iron oxide in terms of Fe2O3, 2 to 16 mol % of copper oxide in terms of CuO, 28.00 to 33.00 mol % of zinc oxide in terms of ZnO, and a balance including nickel oxide, and a subcomponent including boron oxide in an amount of 5 to 100 ppm in terms of B2O3 with respect to 100 parts by weight of the main component, in which the ferrite sintered body includes crystal grains having an average crystal grain size of 2 to 30 ?m.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: June 28, 2022
    Assignee: TDK CORPORATION
    Inventors: Takeshi Shibayama, Yukio Takahashi, Takashi Suzuki, Hiroyuki Tanoue, Masashi Shimoyasu, Masahiro Kato
  • Publication number: 20220177987
    Abstract: A method and system for predicting slopping in a converter occurring during decarburization refining in the converter in which molten steel is produced from a molten pig iron by blowing oxidizing gas to the molten pig iron in the converter from a top blowing lance, or optionally further blowing oxidizing gas or inert gas from a bottom blowing tuyere to perform the decarburization refining of the molten pig iron. The method includes measuring an emission spectrum of a throat combustion flame blowing out from a throat of the converter, calculating emission intensity of the measured emission spectrum at a wavelength in a range of 580 to 620 nm, and predicting the occurrence of the slopping based on a time-series change of the calculated emission intensity.
    Type: Application
    Filed: March 24, 2020
    Publication date: June 9, 2022
    Applicant: JFE STEEL CORPORATION
    Inventors: Shota AMANO, Yukio TAKAHASHI, Hiroto KASE, Naoki KIKUCHI
  • Publication number: 20220154299
    Abstract: A top-blowing lance nozzle is configured to freely switch an adequate expansion condition so as to control an oxygen-blowing amount and a jetting velocity independently of each other without requiring a plurality of lance nozzles or a mechanically movable part. A lance nozzle is configured to blow refining oxygen to molten iron charged in a reaction vessel while a gas is blown from a top-blowing lance to the molten iron. One or more blowing holes for blowing a working gas are on an inner wall side surface of the nozzle, at a site where the lance nozzle has a minimum cross-sectional area in a nozzle axis direction or at a neighboring site of the site.
    Type: Application
    Filed: April 2, 2020
    Publication date: May 19, 2022
    Applicant: JFE STEEL CORPORATION
    Inventors: Yumi MURAKAMI, Nobuhiko ODA, Yusuke FUJII, Goro OKUYAMA, Shota AMANO, Shinji KOSEKI, Shingo SATO, Yukio TAKAHASHI, Ryo KAWABATA, Naoki KIKUCHI, Atsuo YUASA
  • Patent number: 11293069
    Abstract: In a method for oxygen-blowing refining of molten iron, an oxygen-containing gas as a main supply gas is supplied from an inlet side of a blowing nozzle for the oxygen-containing gas passing through an outer shell of the top-blowing lance and blown from the blowing nozzle while a control gas is jetted toward inside of the blowing nozzle for at least part of a period of the oxygen-blowing refining from a spout arranged in a side face of the nozzle at a site where the cross-sectional area of the nozzle minimum takes the minimum in the axial direction of the nozzle or a neighborhood thereof so that at least part of the spout exists in each space formed by dividing into two portions by an arbitrary plane passing through a central axis of the nozzle.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: April 5, 2022
    Assignee: JFE Steel Corporation
    Inventors: Nobuhiko Oda, Goro Okuyama, Shota Amano, Kenji Nakase, Yukio Takahashi, Yuta Hino, Naoki Kikuchi, Yuji Miki
  • Patent number: 11282622
    Abstract: A ferrite composition includes a main component and a sub-component. The main component includes 10.0 to 38.0 mol % of a Fe compound in terms of Fe2O3, 3.0 to 11.0 mol % of a Cu compound in terms of CuO, 39.0 to 80.0 mol % (excluding 39.0 mol %) of a Zn compound in terms of ZnO, and a balance of a Ni compound. The sub-component includes 10.0 to 23.0 parts by weight of a Si compound in terms of SiO2, 0 to 3.0 parts by weight (including 0 parts by weight) of a Co compound in terms of Co3O4, and 0.1 to 3.0 parts by weight of a Bi compound in terms of Bi2O3 with respect to 100 parts by weight of the main component.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: March 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Takeshi Shibayama, Takashi Suzuki, Takahiro Sato, Kenji Komorita, Tatsuro Suzuki, Yukio Takahashi, Hiroyuki Tanoue, Yasuhiro Ito
  • Patent number: 11124849
    Abstract: When the decarburization refining of molten iron is performed by top-blowing oxygen gas from the top blowing lance, the oscillation of molten iron, a bubble burst, and spitting due to the bubble burst are suppressed. A refining method for a converter includes decarburizing molten iron in the converter with a top blowing lance having Laval nozzles disposed at the lower end thereof by blowing oxygen gas on the surface of the molten iron in the converter through the Laval nozzles, in which one or both of an oxygen feeding rate from the top blowing lance and lance height LH are adjusted in such a manner that an oxygen accumulation index S(F) is 40 or less.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: September 21, 2021
    Assignee: JFE STEEL CORPORATION
    Inventors: Shota Amano, Yukio Takahashi, Naoki Kikuchi, Yuji Miki
  • Publication number: 20210215052
    Abstract: A turbine impeller includes: a base material which contains aluminum as a main element; and an anti-erosion coating which covers a surface of the base material. Accordingly, since liquid droplets hit the anti-erosion coating before the base material even when the liquid droplets flow into the rotating turbine impeller, the damage to the base material due to erosion is suppressed.
    Type: Application
    Filed: June 6, 2019
    Publication date: July 15, 2021
    Applicant: IHI Corporation
    Inventors: Yoshimitsu MATSUYAMA, Yukio TAKAHASHI, Atsushi HIRATA, Kazuo MIYOSHI, Kenichi TAKAHASHI, Daisuke WADA, Yasuhiro RAI
  • Publication number: 20210216680
    Abstract: A molten metal component estimation device including: an input device configured to receive measurement information about a refining facility including measurement results regarding an optical characteristic; a model database that stores model expressions and model parameters, regarding a blowing process reaction, including a model expression and model parameters representing a relation between the oxygen efficiency in decarburization and a carbon concentration in a molten metal in the refining facility; and a processor configured to: estimate component concentrations of the molten metal including the carbon concentration in the molten metal by using the measurement information, the model expressions and the model parameters; estimate the carbon concentration in the molten metal based on the measurement results; and determine the model expression and the model parameters to be used when estimating the component concentrations of the molten metal, based on the estimation result of the carbon concentration in t
    Type: Application
    Filed: April 3, 2019
    Publication date: July 15, 2021
    Applicant: JFE STEEL CORPORATION
    Inventors: Hiroto KASE, Shinji TOMIYAMA, Yukio TAKAHASHI, Shota AMANO, Toshifumi KODAMA
  • Patent number: 10894745
    Abstract: A ferrite composition includes a main component and an accessory component. The main component includes 43.0 to 51.0 mol % of iron oxide in terms of Fe2O3, 5.0 to 15.0 mol % of copper oxide in terms of CuO, 1.0 to 24.9 mol % of zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The accessory component includes 0.2 to 3.0 pts. wt. of silicon compound in terms of SiO2, 3.0 to 8.0 pts. wt. of cobalt compound in terms of Co3O4 (excluding 3.0 pts. wt.), and 0.2 to 8.0 pts. wt. of bismuth compound in terms of Bi2O3 with respect to 100 pts. wt. of the main component.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: January 19, 2021
    Assignee: TDK CORPORATION
    Inventors: Kouichi Kakuda, Ryuichi Wada, Yukio Takahashi, Hiroyuki Tanoue, Tatsuro Suzuki, Takahiro Sato, Takashi Suzuki
  • Publication number: 20210005951
    Abstract: An antenna unit used by being attached to window glass for a building includes a radiating element, a wave directing member arranged on an outdoor side with respect to the radiating element, and a conductor arranged on an indoor side with respect to the radiating element, wherein where a distance between the radiating element and the wave directing member is denoted as a, and where a relative permittivity of a medium constituted by a dielectric member between the radiating element and the wave directing member is denoted as ?r, the distance a is (2.11×?r?1.82) mm or more.
    Type: Application
    Filed: September 14, 2020
    Publication date: January 7, 2021
    Applicants: AGC Inc., AGC GLASS EUROPE, AGC FLAT GLASS NORTH AMERICA, INC., AGC Vidros do Brasil Ltda.
    Inventors: Masaki HORIE, Ryuta SONODA, Yukio TAKAHASHI
  • Publication number: 20200392592
    Abstract: In a method for oxygen-blowing refining of molten iron, an oxygen-containing gas as a main supply gas is supplied from an inlet side of a blowing nozzle for the oxygen-containing gas passing through an outer shell of the top-blowing lance and blown from the blowing nozzle while a control gas is jetted toward inside of the blowing nozzle for at least part of a period of the oxygen-blowing refining from a spout arranged in a side face of the nozzle at a site where the cross-sectional area of the nozzle minimum takes the minimum in the axial direction of the nozzle or a neighborhood thereof so that at least part of the spout exists in each space formed by dividing into two portions by an arbitrary plane passing through a central axis of the nozzle.
    Type: Application
    Filed: November 8, 2018
    Publication date: December 17, 2020
    Applicant: JFE Steel Corporation
    Inventors: Nobuhiko Oda, Goro Okuyama, Shota Amano, Kenji Nakase, Yukio Takahashi, Yuta Hino, Naoki Kikuchi, Yuji Miki
  • Patent number: 10839995
    Abstract: A ferrite composition includes a main component that includes more than 44.0 mol % to 50.0 mol % or less of an Fe compound, 5.5 to 14.0 mol % of a Cu compound, 4.0 to 39.0 mol % of a Zn compound, and a balance of less than 40.0 mol % of a Ni compound. The ferrite composition further includes a subcomponent that includes, with respect to 100 parts by weight of the main component, more than 3.0 parts by weight to 13.0 parts by weight or less of an Si compound, more than 2.0 parts by weight to 10.0 parts by weight or less of a Co compound, and 0.25 to 5.00 parts by weight of a Bi compound. A weight ratio of the content of the Co compound to the content of the Si compound is 0.4 to 2.9.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 17, 2020
    Assignee: TDK CORPORATION
    Inventors: Takeshi Shibayama, Yukio Takahashi, Tatsuro Suzuki, Hiroyuki Tanoue, Yasuhiro Ito, Takahiro Sato, Takashi Suzuki
  • Patent number: 10770210
    Abstract: A ferrite composition includes a main component and an accessory component. The main component includes 18 to 30 mol % of iron oxide in terms of Fe2O3, 4 to 14 mol % of copper oxide in terms of CuO, 0 to 6 mol % of zinc oxide in terms of ZnO, and a remaining part of nickel oxide. The accessory component includes 0.30 to 1.83 pts.wt. of silicon compound in terms of SiO2, 2.00 to 10.00 pts.wt. of cobalt compound in terms of Co3O4, and 1.00 to 3.00 pts.wt. of bismuth compound in terms of Bi2O3 with respect to 100 pts.wt. of the main component. A cobalt compound content in terms of Co3O4 divided by a silicon compound content in terms of SiO2 is a value of 5.5 to 30.0.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: September 8, 2020
    Assignee: TDK CORPORATION
    Inventors: Takeshi Shibayama, Asuka Murai, Yukio Takahashi, Takashi Suzuki, Hiroyuki Tanoue, Masaki Takahashi
  • Publication number: 20200258668
    Abstract: A ferrite composition includes main-phase particles, first sub-phase particles, second sub-phase particles, and a grain boundary. At least 10% or more of the main-phase particles contain a portion whose Zn concentrations monotonously decrease from a particle surface toward a particle central part along a length of 50 nm or more. The first sub-phase particles contain Zn2SiO4. The second sub-phase particles contain SiO2. A total area ratio of the first sub-phase particles and the second sub-phase particles is 30.5% or more.
    Type: Application
    Filed: January 23, 2020
    Publication date: August 13, 2020
    Applicant: TDK CORPORATION
    Inventors: Takeshi SHIBAYAMA, Takashi SUZUKI, Yukio TAKAHASHI