Patents Assigned to Kabushiki Kaisha Toyota Chuo Kenkyusho
  • Publication number: 20200259491
    Abstract: An output circuit may be provided with: input and output terminals; a ground terminal shared by both an input side and an output side; a first switching element of n-channel type having first positive and negative electrodes, and a first gate; a second switching element of the n-channel type having second positive and negative electrodes, and a second gate; a diode; and a resistive element; in which the first positive electrode is connected with a power source, the first negative electrode is connected with the output terminal, anode of the diode is connected with the first negative electrode, cathode of the diode is connected with the first gate, the resistive element is connected between the source and the first gate, the second positive electrode is connected with the first gate, the second negative electrode is connected with the ground terminal, and the second gate is connected with the input terminal.
    Type: Application
    Filed: December 17, 2019
    Publication date: August 13, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Norikazu OOTA, Kanae MURATA, Takashi OZAKI
  • Publication number: 20200254395
    Abstract: An inorganic structure body has a free-standing structure including a fibrous member and/or a shell. The fibrous member and/or the shell include a metal and/or an inorganic material and have a three-dimensionally continuous configuration. The free-standing structure may have a structure that is based on a nonwoven fabric or a porous membrane used as a substrate.
    Type: Application
    Filed: September 7, 2018
    Publication date: August 13, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shougo HIGASHI, Keisuke SHIGETOH, Atsushi BENIYA, Nobuhiko MURAMOTO, Kazutaka NISHIKAWA, Shin TAJIMA, Ryoji ASAHI
  • Patent number: 10739457
    Abstract: A laser radar device includes: a light source; a projection light scanner that scans one part of light split off from emission light of the light source, and that generates transmission light for radiating onto a target object; an image forming section that forms plural respective reception lights of the transmission light reflected by respective locations of the target object into an image on a single flat plane as plural image-formation points; an optical receiver that is disposed at the plural image-formation points, and that includes plural unit optical reception sections for mixing each of the plural reception lights together with a reference light and performing optical heterodyne detection; and a reference light scanner that scans or distributes another light split off from the emission light from the light source, and that generates the reference light for radiating onto each of plural of the unit optical reception sections.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 11, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Daisuke Inoue, Tadashi Ichikawa, Tatsuya Yamashita, Akari Nakao, Kazuo Hasegawa
  • Patent number: 10734667
    Abstract: A negative electrode electrolyte solution which contains titanium ions, a chelating agent, and a catechol-based compound having a catechol structure is used for a negative electrode of a flow battery in which an electrolyte solution is circulated so as to perform charge and discharge.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: August 4, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Jiro Sakata
  • Patent number: 10734995
    Abstract: An output circuit may be provided with: input and output terminals; a ground terminal shared by both an input side and an output side; a first switching element of n-channel type having first positive and negative electrodes, and a first gate; a second switching element of the n-channel type having second positive and negative electrodes, and a second gate; a diode; and a resistive element; in which the first positive electrode is connected with a power source, the first negative electrode is connected with the output terminal, anode of the diode is connected with the first negative electrode, cathode of the diode is connected with the first gate, the resistive element is connected between the source and the first gate, the second positive electrode is connected with the first gate, the second negative electrode is connected with the ground terminal, and the second gate is connected with the input terminal.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 4, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Norikazu Oota, Kanae Murata, Takashi Ozaki
  • Patent number: 10727517
    Abstract: A solid oxide fuel cell includes an Si support substrate having a through hole, an electrolyte film formed on the surface of an Si support substrate and containing a solid oxide having oxygen ion conductivity, a first electrode formed on a surface of the electrolyte film (surface on the side opposite to the Si support substrate), and a second electrode formed at least on a surface exposed from the through hole in a rear face of the electrolyte film. The electrolyte film includes a porous layer including the solid oxide and containing pores inside, a first dense layer formed on a surface of the porous layer (surface on the side opposite to the Si support substrate), and a second dense layer formed at the interface between a rear face of the porous layer and the Si support substrate.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: July 28, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hidehito Matsuo, Teruhisa Akashi, Hirofumi Funabashi, Hiroko Iguchi, Shigeo Hori, Toshihiko Tani
  • Patent number: 10727494
    Abstract: A solid oxide fuel cell is disclosed herein. The fuel cell includes a silicon substrate, an electrolyte film laminated on the silicon substrate, and a gas flow path formed inside the silicon substrate. The electrolyte film is opposed to the gas flow path via an electrode film. A portion of a side wall of the gas flow path has a fillet shape, and the portion is close to the electrolyte film.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 28, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Teruhisa Akashi, Hirofumi Funabashi, Hiroko Iguchi, Hidehito Matsuo, Shigeo Hori
  • Publication number: 20200212678
    Abstract: A non-contact power transmission device is configured with which a primary circuit that supplies power and a secondary circuit that supplies the power supplied from the primary circuit to a load are coupled via a transformer, the non-contact power transmission device capable of connecting a storage battery and an application using the primary circuit and the secondary circuit.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 2, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masanori ISHIGAKI, Shuntaro INOUE, Keisuke ISHIKAWA, Kenichi TAKAGI
  • Patent number: 10693273
    Abstract: A reflector includes a gain fiber and a periodic refraction structure unit. The gain fiber has a core doped with a rare earth element. The periodic refraction structure unit includes a high-refractive-index region that has a predetermined width, that is formed at a predetermined spacing along an optical axis direction of the gain fiber, that is formed across an entire section of the core that is orthogonal to the optical axis of the core, and that has a first refractive index, and a low-refractive-index region that is formed adjacent to the high-refractive-index region, that has a width equal to the predetermined spacing, and that has a second refractive index lower than the first refractive index. A width di of an ith periodic structure of refractive index in the periodic refraction structure unit is given by the equation di=Hi·(?/(2·ni))+?/(4·ni).
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 23, 2020
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SCHOOL FOUNDATION
    Inventors: Kazuo Hasegawa, Satoru Kato, Tomoya Okazaki, Kazuya Saito
  • Patent number: 10648710
    Abstract: A heat pump system generates cooling by evaporating a refrigerant using an evaporator, and generates cooling by using a compressor to desorb refrigerant that has been evaporated by the evaporator and adsorbed at an adsorption device.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 12, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Ryuichi Iwata, Tsutomu Shinagawa, Takafumi Yamauchi
  • Patent number: 10647360
    Abstract: A vehicular structural element that includes: a plurality of elongated tube-shaped members; and a retaining member that retains the plurality of elongated tube-shaped members, such that they are disposed alongside each other in a circumferential direction with respect to a predetermined central axis. A tubular assembly configured by an assembly of the plurality of elongated tube-shaped members has inner locations disposed at an inner region viewed along an axial direction set with a lower rigidity in the axial direction than outer locations disposed at an outer region viewed along the axial direction.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 12, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hidekazu Nishigaki, Yasuo Asaga, Ichiro Aoi
  • Patent number: 10637078
    Abstract: A fuel cell disclosed herein may comprise: a substrate provided with a recess through which fuel gas passes; an electrolyte membrane covering an opening of the recess; an insulating film covering one surface of the electrolyte membrane and having a through hole reaching the electrolyte membrane; a first electrode in contact with the one surface of the electrolyte membrane in the through hole; a second electrode in contact with the other surface of the electrolyte membrane; and a heater disposed in the insulating film at a position adjacent to the through hole.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: April 28, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hirofumi Funabashi, Teruhisa Akashi, Hiroko Iguchi, Hidehito Matsuo, Shigeo Hori
  • Publication number: 20200125856
    Abstract: A surveillance performance (information expressing uncertainty of information relating to a potential risk area in a region that requires monitoring) and a tracking performance (information expressing the product of an importance level of a potential risk area and a coverage ratio (an overlap rate between potential risk areas and moving bodies)) are mutually analyzed, and plural moving bodies are allotted to either surveillance or tracking. Potential risk areas that require monitoring are determined such that the surveillance performance and the tracking performance respectively satisfy predetermined levels. The plural moving bodies are allocated to potential risk areas determined to be potential risk areas that require monitoring (simultaneous optimization). The respective moving bodies subject to simultaneous optimization start moving toward their allocated potential risk areas to monitor the potential risk areas.
    Type: Application
    Filed: June 28, 2018
    Publication date: April 23, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Tatsuya MIYANO, Kazuki SHIBATA, Tomohiko JIMBO
  • Publication number: 20200114458
    Abstract: A highly corrosion-resistant spot weldment can be produced at low cost without occurrence of prominent protrusions and the like on the surface. The spot weldment is joined by a nugget formed inside stacked sheet materials through bringing a pair of electrodes arranged opposite to each other into pressure contact with the stacked sheet materials from outside and energizing the stacked sheet materials from the electrodes. The nugget has a diameter that is ?4?t (t: thickness of sheet material) and a flattening level of 3.5 to 8, which is a ratio of diameter to thickness. Both outer surface parts of the sheet materials are free from protrusions formed due to bulging of molten metal. Even when the electrodes are made of a copper alloy, the increased amount of Cu in the outer surface parts is 0.2 mass % or less with respect to the component composition before spot welding.
    Type: Application
    Filed: September 19, 2019
    Publication date: April 16, 2020
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki MATSUOKA, Tatsuyuki AMAGO, Takashi ASADA, Toru HIOKI, Manabu OOGA, Shuhei OGURA
  • Publication number: 20200114461
    Abstract: An electrode tip for resistance spot welding includes a main body with tip and base portions. The tip portion has a bottomed and substantially cylindrical shape. The base portion has a substantially cylindrical shape and merges into the tip portion. The main body is made of a copper alloy such as chromium copper. The tip portion has a bottom part and a barrel part. The bottom part has a pressure-contact surface that is not recessed with respect to a workpiece to be pressed. The barrel part has a substantially cylindrical shape and merges into the bottom part. The electrode tip may have an inner diameter ratio (inner diameter of the barrel part to an outer diameter of the base portion) of 0.4 to 0.6, and may also have a bottom thickness ratio (thickness of the bottom part to the outer diameter of the base portion) of 0.15 to 0.5.
    Type: Application
    Filed: September 19, 2019
    Publication date: April 16, 2020
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki MATSUOKA, Tatsuyuki AMAGO, Takashi ASADA, Toru HIOKI, Manabu OOGA, Shuhei OGURA
  • Patent number: 10619617
    Abstract: An ignition device for an internal combustion engine with an ignition plug that ignites an air-fuel mixture in a combustion chamber, wherein a discharge current i provided by the ignition plug to the air-fuel mixture is controlled to be greater than a discharge current reference value ibf, which is a minimum current value at which a spark discharge blow-out phenomenon does not arise.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: April 14, 2020
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, DENSO CORPORATION
    Inventors: Shogo Sayama, Ryou Masuda, Takayuki Fuyuto, Masao Kinoshita, Yoshihiro Nomura, Akimitsu Sugiura
  • Patent number: 10598250
    Abstract: A torque variation suppressing apparatus includes a rotation element, and a plurality of first elastic elements and second elastic elements which apply elastic forces to the rotation element. With a rotation of the rotation element, a torque applied to the rotation element from each of the first elastic elements and the second elastic elements changes periodically, and a phase of the torque applied to the rotation element from at least one of the first elastic elements and the second elastic elements is changed so that an overall torque characteristic applied to the rotation element is set variable.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 24, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Eiji Tsuchiya, Yoshihiro Mizuno, Norio Yonezawa
  • Publication number: 20200076206
    Abstract: A power supply device is provided with a disconnection means (AND element) for forcibly disconnecting a battery module from a series connection regardless of a gate signal. The power supply device forcibly disconnects partial battery modules from the series connection by the disconnection means (AND element) during powering by a power supply output, thereby performing control so that the accumulated discharge current amounts thereof per unit time become smaller than those of the other battery modules.
    Type: Application
    Filed: January 29, 2018
    Publication date: March 5, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Shigeaki GOTO, Naoki YANAGIZAWA, Kyosuke TANEMURA, Shuji TOMURA
  • Patent number: 10578192
    Abstract: A degree of freedom of a hypoid gear is improved. An instantaneous axis in a relative rotation of a gear axis and a pinion axis, a line of centers, an intersection between the instantaneous axis and the line of centers, and an inclination angle of the instantaneous axis with respect to the rotation axis of the gear are calculated based on a shaft angle, an offset, and a gear ratio of a hypoid gear. Based on these variables, base coordinate systems are determined, and the specifications are calculated using these coordinate systems. For the spiral angles, pitch cone angles, and reference circle radii of the gear and pinion, one of the values for the gear and the pinion is set and a design reference point is calculated. Based on the design reference point and a contact normal of the gear, specifications are calculated. The pitch cone angle of the gear or the pinion can be freely selected.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 3, 2020
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayuki Aoyama, Mizuho Inagaki, Kiyokazu Sunami, Sho Honda, Yoshikatsu Shibata, Hiromi Miyamura
  • Publication number: 20200064086
    Abstract: A heat exchanger having a polyamine on at least part of a surface of the heat exchanger. The existence of polyamine on the surface of the heat exchanger allows the odor components to be temporality held by virtue of the action of polyamine, and the odor components are not released into an interior room or the like at once in conjunction with the evaporation of free water (such as condensed water). Thus, the release of odor components is made moderate, and changes in the concentration of odor components in the interior room are reduced, so that strong odors sensed by people are suppressed. A typical example of the polyamine is PEI, and a typical example of the heat exchanger is an evaporator used in a car air-conditioner.
    Type: Application
    Filed: April 13, 2018
    Publication date: February 27, 2020
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, DENSO CORPORATION
    Inventors: Hiroshi ITO, Satoru KOSAKA, Kiyomi SAKAKIBARA, Atsushi MURASE, Kenji NAKAMURA, Takayuki HIROSE, Kazuhisa UCHIYAMA, Tomohide NISHINO, Sayuri HASHIMOTO, Hirofumi FUTAMATA