Patents Assigned to Toyota Shatai Kabushiki Kaisha
  • Patent number: 10926437
    Abstract: A molded article may include a composite wall portion that is composed of a resin substrate and a wood insert embedded in the resin substrate. The wood insert is integrated with the resin substrate in a boundary portion defined as a joining portion of an end surface of the wood insert and an end surface of the resin substrate with its inner and outer surfaces substantially exposed on inner and outer surfaces of the composite wall portion.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: February 23, 2021
    Assignee: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventor: Makoto Segi
  • Patent number: 10897049
    Abstract: A separator assembly for a fuel cell includes a first separator, a second separator, and a joined portion. In the joined portion, the first separator and the second separator are joined to each other through laser welding. The first separator includes a first surface that is intended to be opposed to the membrane electrode assembly. The first surface of the first separator includes an exposed portion where the base of the first separator is exposed. The second separator includes a second surface that is intended to be opposed to the membrane electrode assembly. A film including conductive particles is arranged on the entire second surface of the second separator. The joined portion is formed by irradiating the exposed portion of the first separator with laser.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 19, 2021
    Assignee: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Eiichiro Morozumi, Michi Hashiba, Takayuki Suzuki
  • Patent number: 10840520
    Abstract: A fuel cell stack includes a plurality of power generation cells stacked and connected in series and coolant passages configured to circulate coolant. The power generation cells each include a membrane electrode assembly and two separators sandwiching the membrane electrode assembly. The separators are each formed by a metal plate. The coolant passages include through-holes extending through the separators and aligned in a stacking direction of the power generation cells. A method for manufacturing a fuel cell stack includes forming a coating of electrodeposition paint on surfaces of ones of the separators having a high electric potential in the fuel cell stack by operating the fuel cell stack and using the coolant that contains electrodeposition paint particles.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: November 17, 2020
    Assignee: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Eiichiro Morozumi, Michi Hashiba
  • Patent number: 10840522
    Abstract: A fuel cell includes stacked power cells and an end cell. Each power cell includes a first plate and two first separators sandwiching the first plate. The end cell includes a second plate and two second separators sandwiching the second plate. Through holes formed in each plate and each separator form a power generating gas inlet passage extending in the power cells. The end cell has at least one of a “first structure,” in which a bottom wall of the through hole of the second plate or an upstream one of the second separators is downwardly recessed compared to corresponding portions of the power cells, and a “second structure,” in which a bottom wall of the through hole of the second plate or a downstream one of the second separators upwardly projects compared to corresponding portions of the power cells.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: November 17, 2020
    Assignees: TOYOTA SHATAI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Kondo, Keiji Hashimoto, Daisuke Kanno
  • Patent number: 10790532
    Abstract: A fuel cell stack includes: a plurality of power generation cells stacked on top of each other; a dummy cell provided on at least one of both ends of the plurality of power generation cells, the dummy cell being configured not to generate electric power; and a reaction gas supply manifold extending through the plurality of power generation cells and the dummy cell. The dummy cell includes one or more dummy cell reaction gas introduction channels as a reaction gas introduction channel that introduces reaction gas from the reaction gas supply manifold to a center area of the dummy cell. At least one of the dummy cell reaction gas introduction channels is provided so as to connect to a bottom face at a lower side of the reaction gas supply manifold in a direction of gravitational force.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: September 29, 2020
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Shatai Kabushiki Kaisha
    Inventors: Daisuke Kanno, Takenori Yamasaki, Atsushi Ida, Daisuke Hayashi, Shuji Kurita, Takashi Kondo, Keiji Hashimoto
  • Patent number: 10759930
    Abstract: A molding material mixture contains cellulose nanofibers (CNFs) and at least one base material selected from the group consisting of a resin and fibers. A hydrophobic polymer is chemically bonded to at least some of the —OH groups of the cellulose nanofibers. The base material and the cellulose nanofibers are ground or pelletized.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: September 1, 2020
    Assignees: TOYOTA SHATAI KABUSHIKI KAISHA, KURASHIKI BOSEKI KABUSHIKI KAISHA
    Inventors: Asuka Akihama, Minoru Sugiyama
  • Publication number: 20200263752
    Abstract: A shock absorbing member includes an outer member being hollow and made of a metal, and an inner member held in the outer member. The inner member includes a wood member and a bracket that is made of a solid resin or a metal and that is integral with the wood member. The inner member includes a holding structure configured to position and hold the bracket to the outer member.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 20, 2020
    Applicants: TOYOTA SHATAI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihisa MIURA, Junichi TAKAYANAGI, Kazunari KOJIO, Munetaka HAYAKAWA
  • Patent number: 10727523
    Abstract: A fuel cell stack includes multiple power generating units and a dummy unit, and respectively providing openings providing reactant-gas supply manifolds. Each power generating unit includes one or more first supply passages extending from the opening to a central region thereof. The dummy unit includes one or more second supply passages extending from the opening to a central region thereof, and a second supply passage port at the highest position in the vertical direction among the second supply passage ports where the second supply passages are connected to the opening is located at a lower position in the vertical direction than a first supply passage port at the highest position in the vertical direction among the first supply passage ports where the first supply passages are connected to the opening.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 28, 2020
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Shatai Kabushiki Kaisha
    Inventors: Daisuke Kanno, Takenori Yamasaki, Atsushi Ida, Daisuke Hayashi, Shuji Kurita, Takashi Kondo, Keiji Hashimoto
  • Patent number: 10727511
    Abstract: A fuel battery includes unit cells, each of which includes a membrane electrode assembly having two gas diffusion layers. Gas passage forming bodies are stacked on an outer surface of each of the gas diffusion layers of each of the unit cells so that each of the unit cells includes a fuel gas passage and an oxidant gas passage. Each of the gas passage forming bodies includes water guide passages, each of which is located between adjacent ones of the gas passages. A communication passage is arranged between each of the gas passages and an adjacent one of the water guide passages to guide water from the gas passage to the water guide passage. The communication passage has a higher pressure loss than that of the gas passage.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: July 28, 2020
    Assignee: Toyota Shatai Kabushiki Kaisha
    Inventors: Keiji Hashimoto, Kousuke Kawajiri, Satoshi Futami
  • Patent number: 10651495
    Abstract: A fuel cell includes a first separator and a second separator. A second protrusion is formed on a first sealing portion of the first separator. A concave portion is formed in a second sealing portion of the second separator. When fuel cells are stacked together sequentially in the vertical direction without displacing relative to one another, the center of the second protrusion and the center of the concave portion are aligned with each other. Even if the fuel cells are displaced while being stacked together, the upper fuel cell in the vertical direction is moved to decrease the distance between the center of the second protrusion and the center of the corresponding concave portion.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: May 12, 2020
    Assignees: TOYOTA SHATAI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Hashimoto, Satoshi Futami, Kousuke Kawajiri, Nobuaki Nonoyama
  • Patent number: 10640067
    Abstract: A vehicular impact-absorbing member may include a wood member having a first pair of opposite surfaces perpendicular to an axis direction of annual rings thereof and a second pair of opposite surfaces parallel to the axis direction of the annual rings thereof, a pair of restraint members respectively positioned on the second pair of opposite surfaces of the wood member, and connecting members connecting the pair of restraint members to each other with the wood member sandwiched between the pair of restraint members.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: May 5, 2020
    Assignees: TOYOTA SHATAI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihisa Miura, Junichi Takayanagi
  • Patent number: 10557016
    Abstract: A flame retardant resin composition includes a thermoplastic resin, flame retardant reinforced fibers, and a flame retardant. The flame retardant reinforced fibers include cellulosic fibers, a phosphorus compound that is grafted to the surface of the cellulosic fibers, and a polyamine compound that is bound to the phosphorus compound. The flame retardant is a phosphorus-based flame retardant.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: February 11, 2020
    Assignees: Toyota Shatai Kabushiki Kaisha, Kurashiki Boseki Kabushiki Kaisha
    Inventors: Asuka Akihama, Minoru Sugiyama
  • Patent number: 10547069
    Abstract: A fuel cell includes power generation cells and an end cell. Each power generation cell has in it a gas passage, through which power generation gas passes. The fuel cell includes an introducing conduit, which distributes and introduces the power generation gas into the gas passages, and a discharging conduit, which merges flows of the power generation gas after passing through the gas passages and discharges the merged flow. The end cell has in it a bypass passage, which connects the introducing conduit and the discharging conduit to each other. The bypass passage is composed of parallel channels, each of which is independently connected to the introducing conduit. The parallel channels include lower parallel channels and upper parallel channels. The pressure loss in each of the lower parallel channels is smaller than the pressure loss in each of the upper parallel channels.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: January 28, 2020
    Assignee: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Takashi Kondo, Keiji Hashimoto
  • Patent number: 10507550
    Abstract: A work region evaluating system includes an imaging unit and a processing unit. The processing unit includes an image processing section that converts a three-dimensional image of a vehicle body component recorded by the imaging unit to three-dimensional image data, an extraction section that extracts work regions and reference regions respectively from both the three-dimensional image data and three-dimensional design data, an alignment section that aligns the three-dimensional image data with the three-dimensional design data with reference to the reference regions, and an evaluation section that evaluates a relation between the work region extracted from the three-dimensional image data and the work region extracted from the three-dimensional design data, based on the three-dimensional image data and the three-dimensional design data which are aligned with each other by the alignment section.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: December 17, 2019
    Assignee: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Katsuhide Arimoto, Takao Mizuno, Yuta Yokomichi
  • Patent number: 10511036
    Abstract: A channel forming body used in a fuel cell module has a gas channel, a water conduit, and a communication path that provides communication between the gas channel and the water conduit. When a ridge is seen in a cross-section perpendicular to a channel extension direction, one of both ends of an external shape of the ridge is shaped so as to be located closer to a center of the ridge than an imaginary surface of the channel assumed to extend in a straight line along the channel extension direction. Portions of the ridge located closer to the center of the ridge are formed opposite from each other at left and right ends of the external shape of the ridge with the communication path interposed therebetween.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: December 17, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Hiroya Nakaji, Kazunori Shibata, Hiroki Okabe, Kousuke Kawajiri, Satoshi Futami, Keiji Hashimoto, Takamasa Kanie
  • Patent number: 10501036
    Abstract: The present disclosure provides a bumper reinforcement including: a bumper main body portion extending in a vehicle transverse direction and is provided at a vehicle longitudinal direction outer side of a pair of left and right side members, the pair of left and right side members being disposed at a vehicle front portion or a vehicle rear portion and extending in a vehicle longitudinal direction; and a reinforcing member formed of wood and is block-shaped, and that is disposed within a cross-section of at least a vehicle transverse direction central portion of the bumper main body portion, an axially central direction of annual growth rings of the wood of the reinforcing member being set to a direction that runs along the vehicle transverse direction.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 10, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Junichi Takayanagi, Toshihisa Miura
  • Publication number: 20190288299
    Abstract: A separator assembly for a fuel cell includes a first separator, a second separator, and a joined portion. In the joined portion, the first separator and the second separator are joined to each other through laser welding. The first separator includes a first surface that is intended to be opposed to the membrane electrode assembly. The first surface of the first separator includes an exposed portion where the base of the first separator is exposed. The second separator includes a second surface that is intended to be opposed to the membrane electrode assembly. A film including conductive particles is arranged on the entire second surface of the second separator. The joined portion is formed by irradiating the exposed portion of the first separator with laser.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 19, 2019
    Applicant: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Eiichiro MOROZUMI, Michi HASHIBA, Takayuki SUZUKI
  • Publication number: 20190229354
    Abstract: A fuel cell stack includes a plurality of power generation cells stacked and connected in series and coolant passages configured to circulate coolant. The power generation cells each include a membrane electrode assembly and two separators sandwiching the membrane electrode assembly. The separators are each formed by a metal plate. The coolant passages include through-holes extending through the separators and aligned in a stacking direction of the power generation cells. A method for manufacturing a fuel cell stack includes forming a coating of electrodeposition paint on surfaces of ones of the separators having a high electric potential in the fuel cell stack by operating the fuel cell stack and using the coolant that contains electrodeposition paint particles.
    Type: Application
    Filed: January 9, 2019
    Publication date: July 25, 2019
    Applicant: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Eiichiro MOROZUMI, Michi HASHIBA
  • Patent number: 10347920
    Abstract: A gas channel forming plate is arranged between a membrane electrode assembly and a flat separator base. The gas channel forming plate includes gas channels arranged on a surface that faces the membrane electrode assembly, water channels each formed on the back side of the protrusion between an adjacent pair of the gas channels, communication passages that connect the gas channels and the water channels to each other, and guide portions formed by causing an inner wall surface of a gas channel to protrude inward in the gas channel. The guide portions are formed such that the upstream edge of each communication passage is arranged in a range in which, in the velocity vector of the gas flowing in the gas channel, the directional component directed from the side corresponding to the membrane electrode assembly toward the flat separator base has a positive value.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: July 9, 2019
    Assignee: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Yoshinori Shinozaki, Satoshi Futami, Kousuke Kawajiri, Keiji Hashimoto
  • Patent number: 10286486
    Abstract: A welding apparatus radiates a laser beam to a welding position in a state where a focal spot of the laser beam is in a near-focusing state. The welding apparatus radiates the laser beam to the welding position in a state where the focal spot of the laser beam is in a far-focusing state. The welding apparatus radiates the laser beam to the welding position in the state where the focal spot of the laser beam is in the far-focusing state. The welding apparatus radiates the laser beam to the welding position in a state where the focal spot of the laser beam is in the near-focusing state.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 14, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Tomoyuki Tanoue, Jyunichiro Makino, Keiichiro Inagaki