Patents by Inventor Takashi Murata

Takashi Murata 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: 20210091274
    Abstract: Provided are a wavelength conversion member having high light extraction efficiency and excellent luminescence intensity and a light emitting device using the wavelength conversion member. A wavelength conversion member 1 containing a phosphor and having a plate-like shape includes a light entrance surface 1a and a light exit surface 1b opposite to the light entrance surface 1a, wherein Rain is 0.01 to 0.05 ?m and Raout?Rain is 0.01 to 0.2 ?m where Rain represents a surface roughness of the light entrance surface la and Raout represents a surface roughness of the light exit surface 1b.
    Type: Application
    Filed: July 12, 2018
    Publication date: March 25, 2021
    Inventors: Hiroyuki SHIMIZU, Hideki ASANO, Minekazu TAKADA, Takashi MURATA
  • Patent number: 10839970
    Abstract: The present invention provides a spent nuclear fuel assembly storage including a metal cask which stores a spent nuclear fuel assembly and a container body which stores the metal cask and has a substantially hexagonal tubular shape, and an assembly of the spent nuclear fuel assembly storage containers, and a method of assembling the spent nuclear fuel assembly storage container.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: November 17, 2020
    Assignees: WATS Co., Ltd., IHI Construction Materials Co., Ltd., MURATA ENGINEERING Co., Ltd.
    Inventors: Yoshio Hida, Hiroaki Kato, Takashi Murata, Masakatsu Uehara
  • Publication number: 20200358149
    Abstract: A power storage device includes at least one power storage cell, a heater that increases a temperature of the power storage cell, a pressing member that presses the heater against the power storage cell, and a sensor provided in the heater. The heater includes a base material and a heater wire provided on the base material. The base material includes a lead portion drawn from between the pressing member and the power storage cell. The heater wire includes a heater lead wire formed on the lead portion. The sensor is provided on the heater lead wire.
    Type: Application
    Filed: April 20, 2020
    Publication date: November 12, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Haruka TSURUTA, Takashi MURATA, Satoshi KITAGAWA, Masaki HANADA
  • Publication number: 20200343576
    Abstract: A power storage device includes: a power storage stack which includes a plurality of power storage cells; a heating member that heats the power storage stack; a cooling member that cools the power storage stack; a first pressing member that presses the heating member against the power storage stack; a second pressing member that presses the cooling member against the power storage stack; and a sheet member covering the bottom of the power storage stack so that an enclosed space is formed between the sheet member and the power storage stack in a cross section of the power storage stack, wherein the sheet member has a first surface and a second surface, the cooling member is disposed on the first surface, within the enclosed space, and the heating member is disposed on the second surface, on an outer side of the enclosed space.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 29, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Haruka TSURUTA, Takashi MURATA, Satoshi KITAGAWA, Masaki HANADA
  • Patent number: 10700394
    Abstract: A battery pack includes: a lower battery module; an upper battery module stacked vertically upwardly of the lower battery module; and a heating unit provided between the lower battery module and the upper battery module, the heating unit being configured to heat the lower battery module and the upper battery module. The heating unit includes a heating line disposed at a position closer to the lower battery module relative to the upper battery module in a stacking direction of the lower battery module and the upper battery module. According to such a configuration, there can be provided a battery pack in which temperature variation is suppressed between battery modules stacked upwardly/downwardly.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: June 30, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Murata, Masaki Hanada
  • Patent number: 10687429
    Abstract: The present invention provides a switch capable of reducing the length in the height direction. According to the present invention, there is provided a switch comprising a switch portion having an operating surface and a circuit board having an electrode, wherein the electrode is configured to be capable of detecting an operation on the switch portion, a component mounting surface of the circuit board is arranged nonparallel to the operating surface and the thickness of the circuit board does not exceed the height of the switch portion.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 16, 2020
    Assignee: EIZO Corporation
    Inventors: Shuhei Miyanaga, Sachi Minami, Seiji Miyazawa, Takashi Murata, Yosuke Kochi
  • Patent number: 10636947
    Abstract: Provided is a wavelength conversion member that can be adjusted in chromaticity with high accuracy and a production method therefor. A wavelength conversion member 1 having a first principal surface 1a and a second principal surface 1b opposed to each other includes a glass matrix 2 and phosphor particles 3 disposed in the glass matrix 2, wherein concentrations of the phosphor particles 3 in the first principal surface 1a and in the second principal surface 1b are lower than concentrations of the phosphor particles 3 in surface layer bottom planes 1c and 1d located 20 ?m inward from the first principal surface 1a and 20 ?m inward from the second principal surface 1b, respectively.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: April 28, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Hiroyuki Shimizu, Hideki Asano, Takashi Murata
  • Patent number: 10483601
    Abstract: A battery pack includes a cell stack including a plurality of battery cells arrayed in one direction, a housing case housing the cell stack, and a heater configured to increase temperature of the battery cells. The heater is arranged on top of a bottom part of the housing case inside the housing case such that the heater is separated from a cell bottom part of the battery cell vertically downwardly, and a space between the bottom part of the housing case and the cell bottom part of the battery cell is a closed space in a section in a direction orthogonal to an array direction of the plurality of battery cells.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: November 19, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Murata, Masaki Hanada
  • Patent number: 10468560
    Abstract: Provided is a wavelength conversion member that is less likely to cause deformation or breakage due to thermal expansion and has an excellent light extraction efficiency. A wavelength conversion member 1 that converts a wavelength of excitation light 11 emitted from a light source includes: a container 2 having a frame-shaped sidewall 4; a phosphor layer 6 disposed in the container 2 and containing a resin and a phosphor; a cover member 5 disposed over the sidewall 4 of the container 2 and sealing an interior of the container 2; and a sealing material layer 9 disposed between the sidewall 4 of the container 2 and the cover member 5, wherein the phosphor layer 6 and the cover member 5 are in close contact with each other, and a cavity 10 surrounded by the phosphor layer 6, the cover member 5, and the sealing material layer 9 is provided over the sidewall 4 of the container 2.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: November 5, 2019
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Takashi Nishimiya, Hideki Asano, Takashi Murata
  • Publication number: 20190309911
    Abstract: Provided is a wavelength conversion member that can be adjusted in chromaticity readily and with high accuracy and a production method for the wavelength conversion member. A wavelength conversion member 1 having a first principal surface 1a and a second principal surface 1b opposed to each other includes a glass matrix 2 and phosphor particles 3 disposed in the glass matrix 2, wherein a concentration of the phosphor particles 3 in the first principal surface 1a is higher than a concentration of the phosphor particles 3 in a portion 20 ?m inward from the first principal surface 1a, a concentration of the phosphor particles 3 in the second principal surface 1b is lower than a concentration of the phosphor particles 3 in a portion 20 ?m inward from the second principal surface 1b, and the concentration of the phosphor particles 3 in the first principal surface 1a is higher than the concentration of the phosphor particles 3 in the second principal surface 1b.
    Type: Application
    Filed: July 21, 2017
    Publication date: October 10, 2019
    Inventors: Hiroyuki SHIMIZU, Hideki ASANO, Takashi MURATA
  • Patent number: 10439417
    Abstract: A battery system includes: a battery configured to be charged or discharged; a temperature sensor configured to detect a temperature of the battery; a heater configured to warm the battery; a charger configured to supply electric power from an external power supply to the battery and the heater; a relay provided in a passage through which the electric power from the charger is supplied to the battery; and a controller configured to control operations of the charger and the relay. The controller is configured to supply predetermined electric power from the charger to the heater and turn off the relay so as not to supply the electric power from the charger to the battery in a case where an SOC of the battery is equal to or more than a threshold and the temperature of the battery is lower than a predetermined temperature.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: October 8, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takashi Murata
  • Publication number: 20190305191
    Abstract: Provided is a wavelength conversion member that can be adjusted in chromaticity with high accuracy and a production method therefor. A wavelength conversion member 1 having a first principal surface 1a and a second principal surface 1b opposed to each other includes a glass matrix 2 and phosphor particles 3 disposed in the glass matrix 2, wherein concentrations of the phosphor particles 3 in the first principal surface 1a and in the second principal surface 1b are lower than concentrations of the phosphor particles 3 in surface layer bottom planes 1c and 1d located 20 ?m inward from the first principal surface 1a and 20 ?m inward from the second principal surface 1b, respectively.
    Type: Application
    Filed: July 21, 2017
    Publication date: October 3, 2019
    Inventors: Hiroyuki SHIMIZU, Hideki ASANO, Takashi MURATA
  • Publication number: 20190258053
    Abstract: The present invention is intended to provide an adaptive optics system and an optical device that allow correction of wavefront phase aberration with higher accuracy than before and have a wider correction range than the conventional ones, regardless of the distance between the observation target and the fluctuation layer, and the size of the observation target. An adaptive optics system includes: a wavefront phase modulator that makes aberration correction to incident light and emits the corrected light; and an imaging-conjugated position adjustment mechanism that adjusts freely within a specimen the position of a surface imaging-conjugated with a fluctuation correction surface formed by the wavefront phase modulator. The imaging-conjugated position adjustment mechanism adjusts the fluctuation correction surface to be imaging-conjugated with a fluctuation layer existing in the specimen.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 22, 2019
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Masayuki HATTORI, Yosuke TAMADA, Takashi MURATA, Yasuhiro KAMEI, Mitsuyasu HASEBE, Yutaka HAYANO, Shin OYA
  • Publication number: 20190254179
    Abstract: The present invention provides a switch capable of reducing the length in the height direction. According to the present invention, there is provided a switch comprising a switch portion having an operating surface and a circuit board having an electrode, wherein the electrode is configured to be capable of detecting an operation on the switch portion, a component mounting surface of the circuit board is arranged nonparallel to the operating surface and the thickness of the circuit board does not exceed the height of the switch portion.
    Type: Application
    Filed: August 9, 2017
    Publication date: August 15, 2019
    Applicant: EIZO Corporation
    Inventors: Shuhei MIYANAGA, Sachi MINAMI, Seiji MIYAZAWA, Takashi MURATA, Yosuke KOCHI
  • Publication number: 20190241456
    Abstract: Provided is a method for manufacturing a wavelength conversion member by which unevenness in luminescent color are less likely to occur. A method for manufacturing a wavelength conversion member includes the steps of: preparing a slurry containing glass particles to be a glass matrix 2 and phosphor particles 3; forming a green sheet by applying the slurry onto a support substrate and moving a doctor blade relative to the slurry, the doctor blade being spaced a predetermined distance away from the support substrate; forming a green sheet laminate by applying heat and pressure to a plurality of the green sheets overlaid one upon another; and sintering the green sheet laminate to obtain a wavelength conversion member, wherein in the step of forming a green sheet laminate, the plurality of green sheets are overlaid one upon another so that, as for at least two of the plurality of green sheets, respective directions of movement of the doctor blade in the step of forming a green sheet intersect each other.
    Type: Application
    Filed: August 2, 2017
    Publication date: August 8, 2019
    Applicant: Nippon Electric Glass Co., Ltd.
    Inventors: Hiroyuki SHIMIZU, Hideki ASANO, Takashi MURATA
  • Patent number: 10358047
    Abstract: An electric power storage system for a vehicle includes a temperature sensor configured to detect a temperature of a battery, a battery heater, a charger connectable with an external power supply and configured to deliver external power to the battery and the battery heater, and a controller. In the system, a first electric power is supplied to the battery heater when the state of charge of the battery is larger than a predetermined value and the temperature of the battery is equal to or lower than the predetermined temperature, and a second electric power is supplied to the battery heater when the state of charge of the battery is equal to or smaller than the predetermined value and the temperature of the battery is equal to or lower than the predetermined temperature. The first electric power is smaller than the second electric power.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Murata, Tomokazu Masuda
  • Patent number: 10322645
    Abstract: A power storage system for a vehicle includes a battery, a temperature sensor, a battery heater, a charger, and a controller. The battery is configured to supply electric power to a motor for traveling of the vehicle, and configured to be charged with external power supplied from an external power supply. The temperature sensor is configured to detect a temperature of the battery. The battery heater is configured to raise the temperature of the battery. The charger is configured to be connectable with the external power supply, and deliver the external power to the battery and the battery heater, respectively. The controller is configured to perform charge control. The charge control is a control that charges the battery with the external power. The controller is configured to store a map. The map specifies, for each temperature of the battery, a ratio of a temperature-elevating power supplied to the battery heater to a maximum power of the external power at the time when a charging time is minimized.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: June 18, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takashi Murata
  • Publication number: 20190119148
    Abstract: Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO2, 0 to 20% B2O3, 0 to 25% Al2O3, 0 to 3% Li2O, 0 to 3% Na2O, 0 to 3% K2O, 0 to 3% Li2O+Na2O+K2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 4% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphoric acid chloride phosphor.
    Type: Application
    Filed: June 8, 2017
    Publication date: April 25, 2019
    Inventors: Naoki FUJITA, Takashi MURATA
  • Patent number: D900068
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 27, 2020
    Assignee: Audio-Technica Corporation
    Inventor: Takashi Murata
  • Patent number: D900069
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 27, 2020
    Assignee: Audio-Technica Corporation
    Inventor: Takashi Murata