Patents by Inventor Naoki Iwata

Naoki Iwata 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: 20240120773
    Abstract: A noncontact power supply device provided with one or more coil units and a cover housing the coil units inside of it. The cover is formed by joining a first sheet arranged at one surface sides of front and back surfaces of the coil units and a second sheet arranged at the other surface sides, the first sheet is a sheet covering the one surface sides of the coil units, the second sheet is a sheet having another surface part covering the other surface sides of the coil units and side surface parts covering side surfaces, the side surface parts of the second sheet are made to abut against side surfaces of the coil units by bending boundaries with the other surface part, and outer edge parts of the side surface parts of the second sheet and outer edge parts of the first sheet are joined.
    Type: Application
    Filed: September 22, 2023
    Publication date: April 11, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Iwata, Osamu Yamashita, Shinjiro Saigusa, Toshiya Hashimoto, Katsuya Kobayashi, Sungmin Cho
  • Publication number: 20240113560
    Abstract: A noncontact power supply device is comprised of a plurality of coil units each having a coil for transmitting power to an object for receiving power by noncontact. Furthermore, the coil units are joined together by a bonding agent having rubbery elasticity.
    Type: Application
    Filed: August 29, 2023
    Publication date: April 4, 2024
    Inventors: Osamu YAMASHITA, Naoki IWATA, Shinjiro SAIGUSA, Sungmin CHO, Katsuya KOBAYASHI, Toshiya HASHIMOTO
  • Publication number: 20240097504
    Abstract: A noncontact power supply apparatus includes a coil unit having a coil for transmitting electric power to a power supply target by noncontact and an electromagnetic shield for reducing a leakage magnetic field of the coil. The electromagnetic shield is the laminate body in which the metal plates are laminated. A lubricant having a predetermined viscosity is applied to a contacting surface between the metal plates.
    Type: Application
    Filed: September 6, 2023
    Publication date: March 21, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Osamu Yamashita, Naoki Iwata, Shinjiro Saigusa, Sungmin Cho, Katsuya Kobayashi, Toshiya Hashimoto
  • Publication number: 20240096549
    Abstract: A power transmission coil unit provided with a board having at its back surface a component mounting part to which electronic components are mounted and a coil forming part at which a coil comprised of a conductor pattern is formed, a core arranged so as to abut against a back surface of the board and formed with a hole for housing the electronic components at a position facing the electronic components, and a protective member provided at a further front surface side of the power transmission coil unit than the component mounting part of the board and receiving a load applied to the power transmission coil unit. A space is formed on a back surface side of the facing portion of the protective member positioned at the location facing the component mounting part.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 21, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Osamu Yamashita, Naoki Iwata, Shinjiro Saigusa, Sungmin Cho, Katsuya Kobayashi, Toshiya Hashimoto
  • Publication number: 20240088718
    Abstract: A power transmitting coil unit includes a board on which a coil comprised of a conductor pattern is formed and to a back surface side of which capacitors are mounted, a core arranged at a back surface side of the board and formed with a hole at a position facing the capacitors, a bottom plate arranged at a back surface side of the core, a space formed defined by a back surface of the board, a front surface of the bottom plate, and an inner circumferential surface of the hole and in which the capacitors are housed, and support member arranged in the space and supporting the board.
    Type: Application
    Filed: August 23, 2023
    Publication date: March 14, 2024
    Inventors: Osamu YAMASHITA, Naoki IWATA, Shinjiro SAIGUSA, Sungmin CHO, Katsuya KOBAYASHI, Toshiya HASHIMOTO
  • Publication number: 20230376195
    Abstract: Further improvement in usability is promoted. An information processing device (10) includes a control unit (140) that executes processing of displaying an operation area having a predetermined shape in an edge area of a display screen, and moving the operation area to a center area of the display screen by a first operation set in advance as a predetermined operation on the operation area.
    Type: Application
    Filed: August 10, 2021
    Publication date: November 23, 2023
    Applicant: Sony Group Corporation
    Inventors: Hiroaki ADACHI, Seiji MURAMATSU, Naoki IWATA, Kenji YOKOYAMA, Kazuki KOZUMA, Toshiyuki KIMURA
  • Publication number: 20230124819
    Abstract: In an optical measurement device, in a first process, a reference member is irradiated with excitation light, light for a calibration process including scattered light associated with the excitation light from a reference member is detected as detection light, a calibration signal corresponding to the light for the calibration process is designated as a detection signal, and a calibration process for removing a signal component corresponding to the scattered light from the detection signal in a second process is performed. Also, in the optical measurement device, in the second process, a sample is irradiated with the excitation light, measurement target light including fluorescence generated from the sample and light scattered from the sample irradiated with the excitation light is detected as detection light, and a signal component corresponding to the scattered light from a measurement signal.
    Type: Application
    Filed: January 21, 2021
    Publication date: April 20, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Fusanori KONDO, Naoki IWATA, Tomokazu MATSUMURA, Teruo TAKESHITA
  • Publication number: 20230124033
    Abstract: An optical measurement device includes an irradiation optical system, a detection optical system, and a cancel circuit. In a fluorescence detection process, a sample is designated as an irradiation target, the sample is irradiated with irradiation light, measurement target light including fluorescence generated from the sample irradiated with the irradiation light and light scattered from the sample irradiated with the irradiation light is detected as detection light, a signal component corresponding to the scattered light is removed from a measurement signal corresponding to the measurement target light in consideration of a result of performing a calibration process during a preliminary process. In the preliminary process, the calibration process for removing a signal component corresponding to the scattered light from the measurement signal is performed on the basis of a calibration signal having a higher signal intensity than a signal corresponding to the scattered light in the measurement signal.
    Type: Application
    Filed: January 21, 2021
    Publication date: April 20, 2023
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Naoki IWATA, Fusanori KONDO, Tomokazu MATSUMURA, Teruo TAKESHITA
  • Patent number: 11457000
    Abstract: An information intermediating apparatus in an information transaction system including an information providing apparatus, an information acquiring apparatus and the information intermediating apparatus connected to a communication network, includes: a first receiver that receives second information, of first and second information necessary for restoring transaction object information, and first feature information indicating a feature of the first information; a second receiver that receives second feature information from the information acquiring apparatus, the second feature information being calculated from the first information transmitted to the information acquiring apparatus from the information providing apparatus; a feature information determination unit that determines whether an identity is present between the first feature information and the second feature information; and a transmitter that transmits the second information to the information acquiring apparatus, when the feature information d
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 27, 2022
    Assignees: DENSO CORPORATION, TOHOKU UNIVERSITY
    Inventors: Tsuneo Nakata, Naoki Iwata, Masao Sakai, Masayuki Fukumitsu, Shingo Hasegawa, Shuji Isobe, Junya Iwazaki, Eisuke Koizumi
  • Patent number: 11272421
    Abstract: A data transfer path calculation device includes: a travel plan acquisition section that acquires a travel plan composed of routes on which vehicles are estimated to travel and passage times at which the vehicles are estimated to pass through points on the routes; a communication environment acquisition section that, for each of wireless base stations, acquires communication environment information indicating a communication environment for communicating with the corresponding one of the wireless base stations at points; and a transfer path calculation section that searches for a data transfer path based on the travel plan and the communication environment information, the data transfer path being a path through which data sequentially passes, among the vehicles, from an acquisition vehicle through one or more relay vehicles by inter-vehicle communication and from a last relay vehicle among the relay vehicles, the data finally reaching a server via one of the wireless base stations.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: March 8, 2022
    Assignee: DENSO CORPORATION
    Inventor: Naoki Iwata
  • Publication number: 20210389249
    Abstract: An optical measurement device includes a light detection element for detecting detection light including fluorescence generated from an immuno-chromatography test piece irradiated with excitation light and scattered light caused by the excitation light and having a phase equivalent to that of the excitation light, and a cancel circuit for processing a detection signal corresponding to the detection light. The cancel circuit removes a signal component corresponding to the scattered light from the detection signal on the basis of a phase difference between the fluorescence and the scattered light.
    Type: Application
    Filed: October 24, 2019
    Publication date: December 16, 2021
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Teruo TAKESHITA, Tomokazu MATSUMURA, Fusanori KONDO, Naoki IWATA
  • Publication number: 20200229065
    Abstract: A data transfer path calculation device includes: a travel plan acquisition section that acquires a travel plan composed of routes on which vehicles are estimated to travel and passage times at which the vehicles are estimated to pass through points on the routes; a communication environment acquisition section that, for each of wireless base stations, acquires communication environment information indicating a communication environment for communicating with the corresponding one of the wireless base stations at points; and a transfer path calculation section that searches for a data transfer path based on the travel plan and the communication environment information, the data transfer path being a path through which data sequentially passes, among the vehicles, from an acquisition vehicle through one or more relay vehicles by inter-vehicle communication and from a last relay vehicle among the relay vehicles, the data finally reaching a server via one of the wireless base stations.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 16, 2020
    Inventor: Naoki IWATA
  • Publication number: 20200185150
    Abstract: A method for manufacturing a powder core includes: making a mixed powder of a magnetic metal powder, a lubricant, and a glass powder; making a molded body by pressing the mixed powder; removing the lubricant from the molded body; and annealing the molded body from which the lubricant has been removed.
    Type: Application
    Filed: November 19, 2019
    Publication date: June 11, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoki Iwata, Shinjiro Saigusa, Masafumi Suzuki, Minoru Nakamura
  • Publication number: 20200028834
    Abstract: An information intermediating apparatus in an information transaction system including an information providing apparatus, an information acquiring apparatus and the information intermediating apparatus connected to a communication network, includes: a first receiver that receives second information, of first and second information necessary for restoring transaction object information, and first feature information indicating a feature of the first information; a second receiver that receives second feature information from the information acquiring apparatus, the second feature information being calculated from the first information transmitted to the information acquiring apparatus from the information providing apparatus; a feature information determination unit that determines whether an identity is present between the first feature information and the second feature information; and a transmitter that transmits the second information to the information acquiring apparatus, when the feature information d
    Type: Application
    Filed: July 15, 2019
    Publication date: January 23, 2020
    Inventors: Tsuneo NAKATA, Naoki IWATA, Masao SAKAI, Masayuki FUKUMITSU, Shingo HASEGAWA, Shuji ISOBE, Junya IWAZAKI, Eisuke KOIZUMI
  • Patent number: 10535454
    Abstract: Provided is a compressed powder core that can suppress a decrease in the inductance even when a high magnetic field (of greater than or equal to 40 kA/m) is applied to the compressed powder core while suppressing an iron loss and a decrease in the strength of the compressed powder core. The compressed powder core 1A has soft magnetic particles 11A and aluminum nitride layers 12A formed on the surface layers of the respective soft magnetic particles 11A. The compressed powder core 1A has a ratio of the first differential relative permeability ??L to the second differential relative permeability ??H satisfying a relationship of ??L/??H?6, and has a magnetic flux density of greater than or equal to 1.4 T when a magnetic field of 60 kA/m is applied. The soft magnetic particles of the compressed powder core 1A contain Si in the range of 1.0 to 3.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 14, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Okamoto, Toshimitsu Takahashi, Sinjiro Saigusa, Kohei Ishii, Naoki Iwata, Jung Hwan Hwang, Masashi Ohtsubo, Takeshi Hattori, Masashi Hara
  • Patent number: 10497500
    Abstract: A powder magnetic core having excellent specific resistance or strength. The powder magnetic core has soft magnetic particles, first coating layers that coat the surfaces of the soft magnetic particles and include aluminum nitride, and second coating layers that coat at least a part of the surfaces of the first coating layers and include a low-melting-point glass having a softening point lower than an annealing temperature for the soft magnetic particles. The first coating layers including aluminum nitride are excellent in the wettability to the low-melting-point glass which constitutes the second coating layers and suppress diffusion of constitutional elements between the soft magnetic particles and the low-melting-point glass of the second coating layers. The powder magnetic core can stably exhibit a higher specific resistance and higher strength than the prior art owing to such a synergistic action of the first coating layers and second coating layers.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 3, 2019
    Assignee: TOYOTA JIDOSHA KABUHIKI KAISHA
    Inventors: Masashi Ohtsubo, Masaaki Tani, Takeshi Hattori, Jung hwan Hwang, Masashi Hara, Shin Tajima, Naoki Iwata, Shinjiro Saigusa, Kohei Ishii, Daisuke Okamoto, Toshimitsu Takahashi
  • Publication number: 20190221340
    Abstract: A method of manufacturing a pressed powder magnetic core disclosed herein may include: mixing soft magnetic metal particles, low-melting-point glass particles and lubricant and heating a mixture of the soft magnetic metal particles, the low-melting-point glass particles and the lubricant at a temperature that is higher than a melting point of the lubricant and is lower than a softening point of the low-melting-point glass particles so as to obtain powder of coated metal particles in which surfaces of the soft magnetic metal particles are coated by the lubricant and the low-melting-point glass particles are distributed in coating layers of the lubricant; filling a mold with the powder; press-molding the powder in the mold; and annealing the press-molded powder. In the pressed powder magnetic core, an amount of the low-melting-point glass particles may be 0.1 wt % to 5.0 wt % relative to an amount of the soft magnetic metal particles.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 18, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki IWATA, Shinjiro Saigusa, Masafumi Suzuki, Masaaki Nishiyama, Jung Hwan Hwang, Masashi Ohtsubo
  • Publication number: 20180137959
    Abstract: A dust core includes: a plurality of soft magnetic particles each composed of an iron-based alloy containing aluminum, each of a surface of the plurality of soft magnetic particles being coated with an aluminum nitride film; and an aluminum oxide film with which at least the aluminum nitride films located at a surface of the dust core are entirely coated.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 17, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinjiro SAIGUSA, Naoki IWATA, Masafumi SUZUKI, Masaaki NISHIYAMA, Jung Hwan HWANG, Masashi OHTSUBO
  • Publication number: 20170263359
    Abstract: A powder magnetic core having excellent specific resistance or strength. The powder magnetic core has soft magnetic particles, first coating layers that coat the surfaces of the soft magnetic particles and include aluminum nitride, and second coating layers that coat at least a part of the surfaces of the first coating layers and include a low-melting-point glass having a softening point lower than an annealing temperature for the soft magnetic particles. The first coating layers including aluminum nitride are excellent in the wettability to the low-melting-point glass which constitutes the second coating layers and suppress diffusion of constitutional elements between the soft magnetic particles and the low-melting-point glass of the second coating layers. The powder magnetic core can stably exhibit a higher specific resistance and higher strength than the prior art owing to such a synergistic action of the first coating layers and second coating layers.
    Type: Application
    Filed: September 4, 2015
    Publication date: September 14, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi OHTSUBO, Masaaki TANI, Takeshi HATTORI, Jung hwan HWANG, Masashi HARA, Shin TAJIMA, Naoki IWATA, Shinjiro SAIGUSA, Kohei ISHII, Daisuke OKAMOTO, Toshimitsu TAKAHASHI
  • Publication number: 20170110227
    Abstract: Provided is a compressed powder core that can suppress a decrease in the inductance even when a high magnetic field (of greater than or equal to 40 kA/m) is applied to the compressed powder core while suppressing an iron loss and a decrease in the strength of the compressed powder core. The compressed powder core 1A has soft magnetic particles 11A and aluminum nitride layers 12A formed on the surface layers of the respective soft magnetic particles 11A. The compressed powder core 1A has a ratio of the first differential relative permeability ??L to the second differential relative permeability ??H satisfying a relationship of ??L/??H?6, and has a magnetic flux density of greater than or equal to 1.4 T when a magnetic field of 60 kA/m is applied. The soft magnetic particles of the compressed powder core 1A contain Si in the range of 1.0 to 3.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 20, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke OKAMOTO, Toshimitsu TAKAHASHI, Sinjiro SAIGUSA, Kohei ISHII, Naoki IWATA, Jung Hwan HWANG, Masashi OHTSUBO, Takeshi HATTORI, Masashi HARA