Patents by Inventor Yuji Yamamoto

Yuji Yamamoto 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: 20240290946
    Abstract: An electrode using a carbon nanotube as a conductive material, and excellent in resistance characteristics is provided. An electrode for a secondary battery herein disclosed has a collector, and an active material layer formed on the collector. The active material layer includes an active material and a carbon nanotube. At least a part of the surface of the carbon nanotube is coated with a material including an element with a lower electronegativity than that of carbon.
    Type: Application
    Filed: November 15, 2023
    Publication date: August 29, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuji YAMAMOTO
  • Publication number: 20240287631
    Abstract: An agglomerated ore is reduced while being subjected to a predetermined load at 1000° C. to 1200° C., both inclusive, to produce a reduced aggregate; a tumble treatment is performed on the reduced aggregate using a tumble tester; cluster strength CS of the reduced aggregate calculated by Formula (1) below is measured; and a clustering property of the agglomerated ore is assessed using the cluster strength CS: CS=(W?/W)×100 . . . (1), where CS is cluster strength (mass %); W is the mass (g) of a reduced aggregate that is equal to or larger than a maximum particle diameter of the agglomerated ore; and W? is the mass (g) of a reduced aggregate after a tumble treatment in the tumble tester that is equal to or larger than the maximum particle diameter of the agglomerated ore.
    Type: Application
    Filed: March 9, 2022
    Publication date: August 29, 2024
    Applicant: JFE STEEL CORPORATION
    Inventors: Yuya MORITA, Takahide HIGUCHI, Tetsuya YAMAMOTO, Toshiyuki HIROSAWA, Yuji IWAMI, Kenya HORITA, Shohei FUJIWARA, Kenta TAKEHARA, Daisuke IGAWA
  • Patent number: 12072670
    Abstract: A method for producing a resin particle dispersion includes: preparing a phase-inverted emulsion by phase inversion emulsification of a resin using an organic solvent and an aqueous medium; and removing the organic solvent from the phase-inverted emulsion by reduced pressure distillation.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: August 27, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Keita Yamamoto, Takashi Inukai, Yuji Isshiki
  • Patent number: 12072392
    Abstract: Provided is a short-circuit detection device including: a signal acquisition unit configured to acquire, from a magnetic flux detector configured to detect a magnetic flux generated in an air gap between a rotor and a stator of a rotating electric machine, a detection signal corresponding to the magnetic flux; a signal processing unit configured to subject the detection signal acquired by the signal acquisition unit to filtering of removing at least one component of odd-order components included in the detection signal, to thereby generate a filtered signal being the detection signal subjected to the filtering; and a short-circuit detection unit configured to detect a short circuit of a field winding through use of the filtered signal generated by the signal processing unit.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: August 27, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuji Takizawa, Haruyuki Kometani, Kenta Motoyoshi, Atsushi Yamamoto, Susumu Maeda, Nobuaki Muroki
  • Publication number: 20240274151
    Abstract: The present technology relates to a particular-sound detector and method, and a program that make it possible to improve the performance of detecting particular sounds. The particular-sound detector includes a particular-sound detecting section that detects a particular sound on a basis of a plurality of audio signals obtained by collecting sounds by a plurality of microphones provided to a wearable device. In addition, the plurality of the microphones includes two microphones that are equidistant at least from a sound source of the particular sound, and one microphone arranged at a predetermined position. The present technology can be applied to headphones.
    Type: Application
    Filed: April 25, 2024
    Publication date: August 15, 2024
    Applicant: Sony Group Corporation
    Inventors: Yuki Yamamoto, Yuji Tokozume, Toru Chinen
  • Publication number: 20240271245
    Abstract: Provided is an ore crushing method capable of efficiently crushing iron ores that are difficult to finely crush. The ore crushing method includes coarsely crushing the iron ores to reduce the proportion of particles with a particle size of greater than or equal to 1 mm, and then finely crushing the iron ores to increase the proportion of particles with a particle size of less than 63 ?m.
    Type: Application
    Filed: March 4, 2022
    Publication date: August 15, 2024
    Applicant: JFE STEEL CORPORATION
    Inventors: Kenta TAKEHARA, Tetsuya YAMAMOTO, Takahide HIGUCHI, Kenya HORITA, Yuji IWAMI, Shohei FUJIWARA, Yuya MORITA, Toshiyuki HIROSAWA, Daisuke IGAWA
  • Publication number: 20240266895
    Abstract: A coil assembly includes a band member and a plurality of coils. The band member is rolled along a circumferential direction into an annular shape and has a plurality of layers in a radial direction. The coils have vertical portions, and are located at predetermined positions in the circumferential direction and the radial direction on the band member and connected in a predetermined connection pattern. Moreover, the coil assembly further includes vertical-portion laminates constituted of the vertical portions of the coils which are radially laminated in a cross section of the band member and the coils taken along the radial direction. Each of the vertical-portion laminates is configured so that each radially-adjacent pair of the vertical portions constituting the vertical-portion laminate have different electric potentials when the coils are energized.
    Type: Application
    Filed: April 17, 2024
    Publication date: August 8, 2024
    Applicant: DENSO CORPORATION
    Inventors: Yuji Hayashi, Toshio Yamamoto
  • Publication number: 20240246175
    Abstract: A method of manufacturing a member includes forming a welded member by joining a first portion of a plate-shaped first plate material and a second portion of a plate-shaped second plate material by laser welding. The method also includes cooling a portion situated near the first portion of the first plate material and a portion situated near the second portion of the second plate material when performing the laser welding.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 25, 2024
    Inventors: Yuji Nakada, Koichiro Yamamoto
  • Patent number: 12043177
    Abstract: A vehicle-mounted display device includes a glass plate that includes a first arcuate surface at a first outer circumferential edge part, the first arcuate surface facing a front surface side, a casing that supports the glass plate from a rear surface side, the casing including a housing and a frame that projects from the housing, and a display unit stored in the casing configured to output a display light toward the glass plate. A rear surface of the glass plate and a front surface of the frame face each other at a spaced distance. The frame further includes a projection that projects, within the spaced distance, from the front surface of the frame toward the rear surface of the glass plate at a second outer circumferential edge part of the front surface of the frame, and the projection includes a second arcuate surface.
    Type: Grant
    Filed: May 10, 2023
    Date of Patent: July 23, 2024
    Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Norihito Kitajima, Tomoaki Yamamoto, Yuji Matsumoto
  • Patent number: 12043401
    Abstract: A transmission cooling assembly of a helicopter includes: a transmission including a speed change structure that changes the speed of rotation produced by rotational power input from a prime mover and outputs the resulting rotational power and a housing accommodating the speed change structure; a cowl covering at least a part of an outer surface of the housing, with a gap defined between the cowl and the outer surface; and a flow structure that allows external air to flow through the gap.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: July 23, 2024
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kenta Ogasawara, Akira Hayasaka, Hiroki Yamamoto, Hidenori Arisawa, Yuji Shinoda, Mitsuaki Tanaka, Hironori Hashimoto
  • Publication number: 20240223053
    Abstract: A synchronous reluctance motor of an embodiment includes a columnar rotor iron core at a center of which a rotary shaft is disposed, and a flux barrier slit group provided for each magnetic pole of the rotor iron core, the slit group includes an outer layer slit disposed along an outer circumferential edge portion of the rotor iron core, and an inner layer slit having both end portions positioned close to an outer circumference of the rotor iron core on opposite sides of the outer layer slit in a circumferential direction, the inner layer slit having a curved shape that is convex toward a central side of the rotor iron core, and a permanent magnet is disposed in the inner layer slit.
    Type: Application
    Filed: March 2, 2022
    Publication date: July 4, 2024
    Applicants: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATION, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shinichi ICHIKAWA, Masayuki KAWAKAMI, Yuji YAMAMOTO, Makoto MATSUSHITA, Katsutoku TAKEUCHI
  • Patent number: 12009506
    Abstract: The present disclosure can bring excellent output characteristics to a nonaqueous electrolyte secondary battery that uses a cathode active material containing tungsten while desired durability is secured. The battery of the present disclosure includes a cathode, an anode, and a nonaqueous electrolyte. The cathode includes a cathode active material layer that contains a granular cathode active material. The cathode active material includes a core part that contains a lithium-transition metal composite oxide of a layered structure; a tungsten-concentrated layer that is formed over a surface of the core part and has a higher tungsten concentration than in the core part; and a lithium-tungsten compound particle that adheres to at least part of a surface of the tungsten-concentrated layer and contains tungsten and lithium. In the battery of the present disclosure, the tungsten-concentrated layer has an amorphous structure. This can bring excellent output characteristics while desired durability is secured.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: June 11, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA AND, SUMITOMO METAL MINING CO., LTD.
    Inventors: Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
  • Publication number: 20240148895
    Abstract: An antibody-drug conjugate represented by formula (I): (where Ab is an antibody, X is a group represented by formula (X-1), formula (X-2) or formula (X-3): (where at the left represents the binding site with NH and at the right represents the binding side with D), D is a group represented by formula (D-1) or formula (D-2): (where represents the binding site with X), and n is in the range of about 1 to about 8).
    Type: Application
    Filed: August 24, 2023
    Publication date: May 9, 2024
    Inventors: Masayuki MIYANO, Yuya NAKAZAWA, Kentaro ISO, Yuki YABE, Hirotatsu UMIHARA, Junichi TAGUCHI, Satoshi INOUE, Shuntaro TSUKAMOTO, Hiroyuki KOGAI, Atsumi YAMAGUCHI, Tsuyoshi AKAGI, Yohei MUKAI, Toshifumi HIRAYAMA, Masaki KATO, Toshiki MOCHIZUKI, Akihiko YAMAMOTO, Yuji YAMAMOTO, Takato SAKURADA
  • Patent number: 11967700
    Abstract: A non-aqueous electrolyte secondary battery that has a low initial resistance and an increase in resistance after charging and discharging is suppressed. The secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active substance layer, which contains a lithium composite oxide having a layered structure. The lithium composite oxide is a porous particle. A surface of the porous particle includes a layer having a rock salt type structure. A thickness of the layer is not less than 5 nm and not more than 80 nm. A void ratio of the porous particle is not less than 15% and not more than 48%. The porous particle contains two or more voids having diameters that are at least 10% of the particle diameter of the porous particle. The surface of the porous particle includes a coating of lithium tungstate.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 23, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO METAL MINING CO., LTD.
    Inventors: Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
  • Patent number: 11962000
    Abstract: A non-aqueous electrolyte secondary battery is obtained using a lithium composite oxide having a layered structure in a positive electrode active substance. An increase in resistance following repeated charging and discharging is suppressed. The battery includes a positive electrode provided with a positive electrode active substance layer, a negative electrode and a non-aqueous electrolyte. The positive electrode active substance layer contains a porous particle lithium composite oxide having a layered structure. The average void ratio of the porous particle is not less than 12% but not more than 50%, and it contains two or more voids having diameters that are at least 8% of its particle diameter. The surface of the porous particle is provided with a coating of lithium tungstate. The coverage ratio of the surface of the porous particle by the lithium tungstate is not less than 10% but not more than 65%.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 16, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO METAL MINING CO., LTD.
    Inventors: Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
  • Patent number: 11929503
    Abstract: Provided is a positive electrode for a secondary battery in which carbon nanotubes are used, of which an initial resistance is small, and that suppresses an increase in resistance when charging and discharging are repeated. The positive electrode for a secondary battery disclosed herein includes a positive-electrode current collector and a positive-electrode active material layer provided on the positive-electrode current collector. The positive-electrode active material layer contains a positive-electrode active material and carbon nanotubes, and substantially does not contain a resin binder. The positive-electrode active material layer includes a layer-like region that is in contact with the positive-electrode current collector, and a region other than the layer-like region. Both of the layer-like region and the region other than the layer-like region contain carbon nanotubes.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: March 12, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventor: Yuji Yamamoto
  • Publication number: 20240076548
    Abstract: Provided is a method for enabling recovery of metal element leaching capacity of a deep eutectic solvent used for leaching a metal element from an ore containing the metal element. A method for recycling a hydrophobic deep eutectic solvent disclosed here includes: preparing a hydrophobic deep eutectic solvent used for leaching a metal element from an ore containing the metal element; and bringing the hydrophobic deep eutectic solvent and hydrochloric acid into contact with each other. In the hydrophobic deep eutectic solvent, a hydrogen bond donor is a carboxy group-containing compound, and a hydrogen bond acceptor is chloride salt. The amount of use of the hydrochloric acid is such that hydrogen chloride is 1 mole or more with respect to 1 mole of the hydrogen bond acceptor.
    Type: Application
    Filed: August 22, 2023
    Publication date: March 7, 2024
    Applicants: Prime Planet Energy & Solutions, Inc., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, TOYOTA TSUSHO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji YAMAMOTO, Masahiro GOTO, Takafumi HANADA, Takeru MORIYAMA, Momoko PROCTER
  • Patent number: 11923534
    Abstract: A non-aqueous electrolyte secondary battery which is obtained using a lithium composite oxide having a layered structure and coated with a tungsten-containing compound in a positive electrode active substance, and which has a low initial resistance, and in which an increase in resistance following repeated charging and discharging is suppressed. The non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode active substance layer containing a lithium composite oxide having a layered structure. The lithium composite oxide includes a porous particle having a void ratio of not less than 20% but not more than 50%. The porous particle contains two or more voids having diameters that are at least 10% of the particle diameter of the porous particle. The surface of the porous particle is provided with a coating containing tungsten oxide and lithium tungstate.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: March 5, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO METAL MINING CO., LTD.
    Inventors: Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
  • Patent number: 11923533
    Abstract: A non-aqueous electrolyte secondary battery is obtained using a lithium composite oxide having a layered structure in a positive electrode active substance. An increase in resistance following repeated charging and discharging is suppressed. The battery includes a positive electrode provided with a positive electrode active substance layer, a negative electrode and a non-aqueous electrolyte. The positive electrode active substance layer contains a porous particle lithium composite oxide having a layered structure. The average void ratio of the porous particle is not less than 12% but not more than 50%, and it contains two or more voids having diameters that are at least 8% of its particle diameter. The surface of the porous particle is provided with a coating of lithium tungstate. The coverage ratio of the surface of the porous particle by the lithium tungstate is not less than 10% but not more than 65%.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: March 5, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO METAL MINING CO., LTD.
    Inventors: Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
  • Publication number: 20240067532
    Abstract: Provided are particles convertible to a lithium transition metal composite oxide that can reduce an initial resistance of a lithium ion secondary battery. The particles disclosed here are particles convertible to a lithium transition metal composite oxide by firing. Each of the particles includes lithium and a transition metal element. The particles have an average particle size of 2.0 ?m or more. In the case of obtaining a reflected electron image of the particles with a scanning electron microscope, a domain observed as a brightest region in the particles has a maximum diameter less than 1 ?m.
    Type: Application
    Filed: August 18, 2023
    Publication date: February 29, 2024
    Applicant: Prime Planet Energy & Solutions, Inc.
    Inventors: Yuji YAMAMOTO, Shinya SUZUKI