Patents Assigned to Kabushiki Kaisha Toyota Chuo Kenkyusho
  • Patent number: 11047453
    Abstract: A planetary gear mechanism has a first planetary gear train that includes a ring gear to which power from a main power source is input, a planetary carrier that is connected to a first output shaft, a first planetary pinion that is turnably supported by the planetary carrier, and a first sun gear that is connected to a distribution electric motor. The planetary gear mechanism also has a second planetary gear train that includes the ring gear, the planetary carrier, the first planetary pinion, a second planetary pinion that is turnably supported by the planetary carrier, and a second sun gear that is connected to a second output shaft.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 29, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasumitsu Osada, Teruhiko Nakazawa, Atsushi Suzuki, Hiroyuki Nishizawa, Yasuhiro Torii
  • Patent number: 11040882
    Abstract: A carbon material precursor comprises an acrylamide-based polymer having a weight-average molecular weight of 10,000 to 2,000,000 and a polydispersity of the molecular weight (weight-average molecular weight/number-average molecular weight) of 5.0 or less.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 22, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takuya Morishita, Kazuhiro Nomura, Hiromitsu Tanaka, Megumi Sasaki, Makoto Kato
  • Patent number: 11021072
    Abstract: A heat management control device for a vehicle that includes an electric motor and a power supply section that includes a storage battery and that supplies electrical power to the electric motor. The heat management control device includes a charging device that charges the storage battery through a connection to an external power source, a heat exchanger that performs heat exchange of heat generated by the charging device during charging with fluid flowing in a specific transport path. The heat management control device includes a heat storage section that uses a chemical reaction partway along the specific transport path in order to recover heat from the fluid and that stores the recovered heat, and a fluid supply controller that, from immediately after a vehicle is started, releases heat stored by the heat storage section to the fluid, and selectively supplies the fluid to a predetermined plurality of warm-up targets.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: June 1, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Gentaro Yamanaka
  • Publication number: 20210154976
    Abstract: A heat-resistant member includes a base member composed of an isotropic graphite and a film with a single layer or multiple layers formed on the entire or partial surface of the base member. The film includes a dense WC layer with a single layer or multiple layers, and the dense WC layer includes WC as a main component and has a porosity of less than 3%. The film may further include a porous WC layer with a single layer or multiple layers formed on an entire or partial surface of the dense WC layer. In this case, the porous WC layer preferably includes WC as a main component and has a porosity larger than that of the dense WC layer.
    Type: Application
    Filed: July 15, 2020
    Publication date: May 27, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Daisuke NAKAMURA
  • Patent number: 11009127
    Abstract: A shift mechanism switches power transmission paths among a first transmission shaft, a second transmission shaft, and a third transmission shaft that are concentrically arranged on a rotational axis. The shift mechanism has a drive drum that is provided so as to be coaxial with the rotational axis and pivotable about the rotational axis, and a first driven drum and a second driven drum that are arranged on the rotational axis so as to be concentric with the drive drum and move along the rotational axis as the drive drum pivots. As the first driven drum moves, a first shift sleeve advances and retreats, and the first transmission shaft and the second transmission shaft are connected and disconnected. In addition, as the second driven drum moves, a second shift sleeve advances and retreats, and the second transmission shaft and the third transmission shaft are connected and disconnected.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: May 18, 2021
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Isamu Shiotsu, Hirotsugu Yoshino, Hideaki Komada, Yosuke Suzuki
  • Patent number: 11011982
    Abstract: A power supply device includes battery circuit modules each having a battery, a first switching element S1 connected in parallel to the battery, and a second switching element S2 connected in series to the battery between the battery and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group in which the battery circuit modules are connected in series, and a control circuit for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: May 18, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki Goto, Keisuke Ishikawa, Shuji Tomura, Naoki Yanagizawa
  • Patent number: 11008663
    Abstract: The electrolysis system of the present invention has a water electrolysis unit equipped with a water electrolysis cell using a solid polymer electrolyte membrane as its diaphragm, a DC power source for supplying the water electrolysis cell with a DC current, and a mitigation unit for mitigating, when a counter electromotive force or abrupt potential fluctuation occurs in the water electrolysis cell, the counter electromotive force or the potential fluctuation. The mitigation unit is preferably a coil+diode (A) connected in parallel between the DC power source and the water electrolysis cell or a diode (B) connected between the DC power source and the water electrolysis cell. The electrolysis system is preferably equipped further with a lowering rate controller for controlling the lowering rate of a current supplied from the DC power source to the water electrolysis cell.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: May 18, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hajime Murata, Kiyoshi Yamazaki
  • Patent number: 11001660
    Abstract: A carbon material precursor includes an acrylamide/vinyl cyanide-based copolymer which contains 50 to 99.9 mol % of acrylamide-based monomer unit and 0.1 to 50 mol % of vinyl cyanide-based monomer unit; a carbon material precursor composition includes the above-described carbon material precursor and at least one additional component selected from the group consisting of acids and salts thereof; and a method for producing a carbon material, includes subjecting the above-described carbon material precursor or the above-described carbon material precursor composition to thermal-stabilization treatment as necessary, followed by carbonization treatment.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 11, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takuya Morishita, Kenichi Hayashida, Kazuhiro Nomura
  • Publication number: 20210134962
    Abstract: A semiconductor device includes: a substrate; and an n-type layer including a nitride semiconductor formed on the surface of the substrate. In the n-type layer, the concentration of donor impurities (excluding O) is 1×1015 cm?3 or more and 1×1020 cm?3 or less, the concentration of C impurities is 1×1016 cm?3 or less, the concentration of O impurities is 1×1016 cm?3 or less, the concentration of Ca impurities is 1×1016 cm?3 or less, and the sum total of the concentrations of the C impurities, the O impurities, and the Ca impurities is lower than the concentration of the donor impurities. Such a semiconductor device can be fabricated by using a halogen-free vapor phase epitaxy (HF-VPE) device.
    Type: Application
    Filed: February 19, 2019
    Publication date: May 6, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Taishi KIMURA, Daisuke NAKAMURA, Tetsuo NARITA, Keita KATAOKA
  • Patent number: 10995412
    Abstract: An electrode set for chemical reaction includes a substrate, and electrodes for reduction and oxidation reactions alternately arranged on the same surface of the substrate.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 4, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuhiko Takeda, Takeshi Morikawa, Naohiko Kato, Shintaro Mizuno, Masahito Shiozawa, Hiroaki Wakayama
  • Patent number: 10985290
    Abstract: A photodetector includes a light receiving part having a plurality of light receiving elements, and a signal processing part that adds outputs from the light receiving elements and outputs the result. A plurality of measurements are performed while combination of effective light receiving elements among the light receiving elements in the light receiving part is changed. The results of the measurements are subjected to a compressive sensing process to determine an output signal of for each light receiving element or for each group of light receiving elements.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: April 20, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hiroyuki Matsubara, Isamu Takai, Seigo Ito
  • Patent number: 10981465
    Abstract: A system includes energy modules that output power to an energy management bus based on load demands. An energy module includes energy cells enclosed within a module housing that provide power to the energy management bus and a driving system attached to the module housing that transports the energy module. The energy module includes a local controller that controls power output from the energy cells to the energy management bus, engages a self-driving mode in response to receiving a disconnection signal from a central controller, and controls movement of the energy module in the self-driving mode to a predetermined location via the driving system. The central controller receives a current module status from the energy modules and controls a configuration of the energy modules providing power to the energy management bus based on the current module status.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 20, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masanori Ishigaki, Tomoki Nishi, George Bucsan
  • Patent number: 10972006
    Abstract: A power supply device includes battery circuit modules each having a battery, a first switching element S1 connected in parallel to the battery, and a second switching element S2 connected in series to the battery between the battery and the first switching element S1, the second switching element S2 being turned off when the first switching element S1 is turned on, a battery circuit module group in which the battery circuit modules are connected in series, and a control circuit for outputting, at intervals of a certain time, a gate signal for turning on and off the first switching element S1 and the second switching element S2 to the battery circuit modules.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 6, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki Goto, Keisuke Ishikawa, Shuji Tomura, Naoki Yanagizawa
  • Patent number: 10961607
    Abstract: A hardfacing alloy satisfies the following condition when the hardfacing alloy as a whole is 100 mass % (also simply referred to as “%,” hereinafter), Ni: 10-25%, Si: 1-3%, Fe: 3-18%, the total of one or more elements of Mo, W, and Nb: 6.5-20%, and the balance: Cu and impurities. In particular, it preferably satisfies Fe+2Mo?22.6(%), Mo equivalent/Fe?1.17, and Mo equivalent=Mo+0.522W+1.033Nb. In a hardfacing part composed of the hardfacing alloy, coarse hard particles are formed to ensure the wear resistance, and a soft phase present in the hard particles ensures the machinability. This may be understood as a raw material powder for hardfacing treatment and may also be understood as a hardfacing member in which a hardfacing part is formed on a base material using the raw material powder.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: March 30, 2021
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadashi Oshima, Hajime Kato, Kouji Tanaka, Takashi Saito, Natsuki Sugiyama, Minoru Kawasaki, Jun Nomasaki, Hisao Fukuhara, Naoyuki Miyara, Hironori Aoyama
  • Publication number: 20210087069
    Abstract: An oxide ion conductor has a X3Z2(TO4)3 structure, where X is a divalent metal element, Z is a trivalent metal element, and T is a tetravalent metal element, and has a composition expressed by (X1-xAx)3(Z1-yBy)2(T1-zCz)3O12+? where the element X is Ca, Fe, Gd, Ba, Sr, Mn, and/or Mg, the element Z is Al, Cr, Fe, Mn, V, Ga, Co, Ni, Ru, Rh, and/or Ir, the element T is Si and/or Ge, an element A is La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and/or Sr, an element B is Zn, Mn, Co, Ru, and/or Rh, and an element C is Si, Al, Ga, and/or Sn, 0?x?0.2, 0?y?0.2, and 0?z?0.2 are satisfied, and ? is a value securing electrical neutrality.
    Type: Application
    Filed: February 12, 2019
    Publication date: March 25, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Seiji KAJITA, Nobuko OHBA, Akitoshi SUZUMURA, Shin TAJIMA, Ryoji ASAHI
  • Patent number: 10957925
    Abstract: First, a reaction gas is supplied to a fuel cell stack including a laminate of solid polymer electrolyte fuel cells and power generation is performed so that a temperature of the fuel cell stack reaches 65° C. or higher (heating power generation step). Next, the reaction gas is supplied to the fuel cell stack and the power generation is performed under a condition in which relative humidity is 100% or more (cleaning power generation step). Cooling water of room temperature may be supplied to the fuel cell stack from the outside before the cleaning power generation step is performed after the heating power generation step is completed, or after the cleaning power generation step is completed (quenching step).
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 23, 2021
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hajime Murata, Kensaku Kodama, Manabu Kato, Toshiaki Kusakari
  • Publication number: 20210079234
    Abstract: A coating liquid includes aluminum phosphate, a nonionic surfactant, and water and/or water-soluble solvent that dissolves or disperses the aluminum phosphate and the nonionic surfactant. An amount of the nonionic surfactant is preferably 1 vol % or more and 10 vol % or less. The nonionic surfactant is preferably at least one selected from the group consisting of ester, ether, alkylglycoside, octylphenol ethoxylate, pyrrolidone, and polyhydric alcohol. Applying such a coating liquid to a surface of a thermoelectric member, and drying and firing the coating liquid enables formation of a dense antioxidant film containing aluminum phosphate on the surface of the thermoelectric member.
    Type: Application
    Filed: February 19, 2019
    Publication date: March 18, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masato MATSUBARA, Yumi SAIKI, Ryoji ASAHI
  • Publication number: 20210061774
    Abstract: A graphene nanostructure has a nanographene, a ? conjugated functional group bonded to the nanographene via a pyrazine skeleton, and at least one Br group and/or at least one CN group introduced into the ? conjugated functional group. A graphene nanostructure preferably has an average size of 1 nm or larger to 100 nm or smaller, a band gap of 0.01 eV or higher to 1.2 eV or lower, and/or a HOMO level of ?6.0 eV or higher to ?4.0 eV or lower. As the ? conjugated functional group into which the Br group(s) and/or the CN group(s) are/is introduced, a 4-bromobenzene group, a 4,5-dibromobenzene group, a 5-bromopyridine group, a 5-bromopyrazine group, a benzonitrile group, a phthalonitrile group, or a 2,3-dicyanopyrazine group is desirable.
    Type: Application
    Filed: July 17, 2018
    Publication date: March 4, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Hiroyuki TETSUKA
  • Patent number: 10926647
    Abstract: A vehicle driving apparatus includes a first motor, a second motor, and a planetary mechanism, and obtains a driving force by combining motive forces obtained from the first motor and the second motor by a planetary gear of the planetary mechanism. The vehicle driving apparatus includes at least one of a design value and a control quantity in which a frequency ratio between a sound generated by a rotation of the first motor and a sound generated by a rotation of the second motor satisfies a reduction condition of dissonance.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: February 23, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Teruhiko Nakazawa, Ryoichi Hibino, Makoto Kusakabe, Yasumitsu Osada, Shoji Nakahara, Hiroyuki Nishizawa, Yasuhiro Torii
  • Patent number: 10930962
    Abstract: The nitrogen battery of the present disclosure includes a positive electrode that uses nitrogen as a positive electrode active material, a negative electrode, and an ion conducting medium that contains a silane compound and conducts alkali metal ions.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: February 23, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Nobuhiro Ogihara, Yoko Hase