Patents Assigned to Mazda Motor Corporation
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Publication number: 20250109314Abstract: Provided is a moisture absorption film layered product that can be photocured by using ultraviolet ray, which can achieve curing in a short time, and that has both excellent defogging properties and abrasion resistance. A moisture absorption film layered product including a moisture absorption film formed on a surface of a substrate, wherein the moisture absorption film is formed by curing a photocurable resin composition containing a siloxane resin (A) having a (meth)acryloyl group, three particular (meth)acrylate monomers (B), (C), and (D), and a photo-initiator as essential components, a blending proportion of (A):(B):(C):(D) is 0.1 to 5:35 to 55:0.5 to 10:40 to 60, (B) is a bifunctional monomer having a hydroxy group, (C) is a monofunctional monomer having an ethylene glycol chain, and (D) is a monofunctional monomer having a hydroxy group.Type: ApplicationFiled: September 20, 2024Publication date: April 3, 2025Applicants: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., Mazda Motor CorporationInventors: Takashi Saito, Tetsuya Maeda, Hiroto Matsui, Mitsuyoshi Kawabe, Daiji Katsura
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Patent number: 12263847Abstract: A driver abnormality determination apparatus includes circuitry configured to detect a driver state of a driver of a vehicle, detect a driving operation of the driver, detect an exertion level of an involuntary function of the driver based on the driver state, detect an exertion level of a driving function of the driver based on the driving operation; and determine driver abnormality based on the execution level of the involuntary function and the execution level of the driving function. On condition that a function level of one of the execution level of the involuntary function and the execution level of the driving function is equal to or lower than a specified determination criterion, the circuitry is configured to relax a determination criterion for the other function level.Type: GrantFiled: March 11, 2021Date of Patent: April 1, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Koji Iwase, Makoto Yoshida, Junichiro Kuwahara, Yohei Iwashita
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Patent number: 12263725Abstract: A vehicle door is provided having an outer panel reinforced by a panel reinforcement and which is configured to generate low-frequency sound dominantly at the time of closing the door. The door has an outer panel openably/closably attached to a vehicle body by a front hinge; and a panel reinforcement extending in a vehicle front-rear direction on an inner side of the outer panel. The outer panel and the panel reinforcement are fixed by plural adhesion sections. The number of the adhesion sections in an upper area of the outer panel is larger than the number of the adhesion sections in a lower area of the outer panel. The number of the adhesion sections provided in a front lower area near the front hinge in the lower area is larger than the number of adhesion sections in a rear lower area away from the front hinge in the lower area.Type: GrantFiled: November 22, 2022Date of Patent: April 1, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Daisuke Nakayama, Tomohiro Komaji, Hidemitsu Shinhara, Masaki Mouri, Eiji Oro, Masayoshi Sannabe
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Patent number: 12264260Abstract: A multilayer coating film includes a lustrous layer containing a luster material and a colored layer containing a reddish coloring agent, and having translucency. Regarding a Y value of an XYZ colorimetric system calibrated with a standard white plate, when a light incident angle is 45°, Y(5°) represents a Y value of reflected light measured at a light receiving angle of 5°, and Y(15°) represents a Y value of reflected light measured at a light receiving angle of 15°, the lustrous layer satisfies the following: Y(5°) is 30 or more to 700 or less; Y(15°)=k×Y(5°) (where k is a coefficient); and k is 0.01 or more to 0.3 or less. The concentration of the reddish coloring agent in the colored layer is 1 mass % or more to 17 mass % or less.Type: GrantFiled: October 22, 2021Date of Patent: April 1, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka, Kazuteru Tamai, Eiichi Kawase, Tomohiro Fujimoto, Takayoshi Nakamoto
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Patent number: 12263783Abstract: A vehicle control system includes a plurality of zone ECUs and a central processing unit. Each zone ECU outputs a blinking timing signal for blinking a blinker installed in a vehicle on the basis of a blinking control signal received from the central processing unit. Furthermore, the zone ECUs are configured to be connected to each other via a local network, share blinking timing information of the blinker with another zone ECU via the local network, and adjust a blinking timing signal of the zone ECUs on the basis of the shared information.Type: GrantFiled: July 21, 2020Date of Patent: April 1, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Yoshimasa Kurokawa, Tetsuhiro Yamashita
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Patent number: 12263883Abstract: A vehicle-body structure comprises a dash panel, a pair of right-and-left front side frames, a pair of right-and-left side sills, a pair of right-and-left first longitudinal load-transmitting members respectively extending from respective vehicle-rear portions of the right-and-left front side frames to the right-and-left side sills along an upper face of the floor panel, and a pair of right-and-left second longitudinal load-transmitting members respectively extending from the respective vehicle-rear portions of the right-and-left front side frames toward a vehicle-front portion of the battery case along a lower face of the floor panel.Type: GrantFiled: March 14, 2022Date of Patent: April 1, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Takehiro Kamei, Takayuki Kimura
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Publication number: 20250099308Abstract: To facilitate unfolding of a wheelchair outside a vehicle by a simple one-handed operation even in a seated state on a driver's seat of the vehicle, a wheelchair includes an upper support arm and a lower support arm, each of which couples a left side frame and a right side frame and is folded in an up-down direction in a central portion thereof in a left-right direction. A tensioning member having a flexibility is coupled to the upper support arm and the lower support arm; and a grip section is attached to the tensioning member. The upper support arm and the lower support arm, when each of which is in a folded state, are urged in an unfolding direction by a predetermined tensile force input to the tensioning member.Type: ApplicationFiled: September 24, 2024Publication date: March 27, 2025Applicant: MAZDA MOTOR CORPORATIONInventors: Takashi IWASE, Noboru KATO
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Publication number: 20250099309Abstract: A folding wheelchair which prevents unexpected unfolding includes an upper support arm and a lower support arm coupling a left side frame and a right side frame foldable in an up-down direction in central portions thereof in a left-right direction. An engaged section is provided in at least one of the upper support arm and the lower support arm. An engagement section engages the engaged section to prevent relative displacement in the up-down direction of the central portions of the upper support arm and the lower support arm in the left-right direction. An operation section switches operation of the engagement section from an engagement state with the engaged section to an unengaged state.Type: ApplicationFiled: September 24, 2024Publication date: March 27, 2025Applicant: MAZDA MOTOR CORPORATIONInventors: Takashi IWASE, Isao TODA, Sho Chang LEE
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Publication number: 20250099307Abstract: To improve body rigidity during unfolding of a foldable wheelchair, a wheelchair includes a support arm 40 that couples a left side frame and a right side frame and is folded in a central portion in a left-right direction; a footrest that couples a front end portion of the left side frame and a front end portion of the right side frame and is folded in a central portion in the left-right direction; and a rod that connects the central portion of the support arm in the left-right direction and the central portion of the footrest in the left-right direction.Type: ApplicationFiled: September 23, 2024Publication date: March 27, 2025Applicant: MAZDA MOTOR CORPORATIONInventors: Takashi IWASE, Isao TODA
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Publication number: 20250099310Abstract: To facilitate attachment of a seat and suppress rattling of the attached seat, a seat frame is provided with a frame abutment section that abuts a side frame from one side in a left-right direction; an abutment member that abuts the side frame from the other side in the left-right direction; and a shaft member that supports the abutment member in a manner to allow rotation thereof about an axis extending in a body front-rear direction with respect to a body portion of the seat frame. The side frame includes a convex section that protrudes upward, the convex section pressing the abutment member from below during attachment of the seat frame and thereby causing the abutment member to rotate in a direction in which a portion of the abutment member below the axis abuts the side frame.Type: ApplicationFiled: September 23, 2024Publication date: March 27, 2025Applicant: MAZDA MOTOR CORPORATIONInventors: Takashi IWASE, Noboru KATO, Haruo OHE, Isao TODA
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Patent number: 12257998Abstract: A body-size class specification device of the present invention comprises a class feature-quantity information memorizing section to memorize class feature-quantity information to correlate plural classes for classifying a body size according to a dimension ratio of prescribed parts of a body with plural prescribed feature quantities for characterizing the plural classes, a first input section as an example of a feature-quantity acquiring section to acquire feature quantity of an object person to be specified for the class, an eye-height measuring section and an upper-body-length-ratio processing section, and a class specifying section to specify the class corresponding to the feature quantity of the object person acquired by the feature-quantity acquiring section based on the class feature-quantity information memorized by the class feature-quantity information memorizing section.Type: GrantFiled: June 2, 2022Date of Patent: March 25, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Kosuke Noguchi, Yoshito Hirata, Hiroki Uemura, Tomonori Ohtsubo
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Patent number: 12257905Abstract: To arrange a power unit, an electric power conversion unit, and engine-related components compactly, a drive motor, a reduction drive, a generator, and an engine body are integrally arranged in this order in a vehicle width direction of a power unit compartment such that respective heights thereof are substantially the same. An electric power conversion unit, in which a motor inverter, an electric power generation inverter, and a DC/DC converter are integrated, is arranged above the drive motor, the reduction drive, and the generator. Engine-related components such as a low-voltage battery, an air cleaner, and an oil filter are arranged above the engine body.Type: GrantFiled: December 7, 2022Date of Patent: March 25, 2025Assignee: Mazda Motor CorporationInventors: Osami Ohno, Satoshi Maruyama, Hiroshi Tanaka, Kei Yonemori, Akihiro Furukawa, Li-Hsuan Huang, Chih-Yuan Chen, Iou-Uei Jang
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Patent number: 12257965Abstract: A vehicle front structure comprises a beam member positioned in front of a sub frame and having a closed-cross section extending in a vehicle width direction and a plate member extending forwardly from the beam member. The plate member comprises a fixation portion fixed to the beam member, a body portion extending forwardly from the fixation portion, and a front end portion positioned at a front end of the body portion and configured to have higher rigidity against a load applied in a longitudinal direction than the body portion. The front end portion of the plate member comprises an upper section located at a higher level than the body portion and a lower section located at a lower level than the body portion. The upper section is positioned on a vehicle forward side of the lower section.Type: GrantFiled: September 1, 2022Date of Patent: March 25, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Masayuki Furutani, Ryo Ando, Reiko Yoshiura
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Patent number: 12255328Abstract: To improve the cycle characteristics of a lithium ion battery, a mixture of a powder of a conversion-type oxide made of an iron oxide and/or a silicon oxide and causing a conversion reaction with Li ions and a powder of an oxygen ion conductor are used as a negative electrode material of the lithium ion battery.Type: GrantFiled: January 25, 2022Date of Patent: March 18, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Suguru Ikeda, Hiroki Fujita, Hackho Kim
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Patent number: 12255487Abstract: A smoothing capacitor is forcibly discharged, in a state where a battery is disconnected from a high-voltage circuit, first discharge control is initiated to consume electric charges of the smoothing capacitor by an in-vehicle component via a DC/DC converter. Thereafter, when a voltage of the smoothing capacitor is reduced and reaches a specified threshold, second discharge control is executed to forcibly discharge the electric charges in an active discharge circuit. In the case where continuous forced discharge occurs, delay control to delay execution timing of the second discharge control is further executed.Type: GrantFiled: March 27, 2023Date of Patent: March 18, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Yuta Otsuka, Haruki Yamane, Takashi Yoshizaki, Shosuke Morimoto, Sho Kawanari, Hiroaki Kashihara, Yusuke Kame
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Patent number: 12247627Abstract: A power transmission system is provided, which includes a biasing member configured to bias a second power-transmission member in a rotational direction with respect to a first power-transmission member by a spline part of the biasing member being engaged with a spline part of the second power-transmission member while the biasing member is locked by the first power-transmission member and a spring part thereof is in a first elastically displaced state, and a temporarily fixing member having a temporarily fixing part which temporarily fixes the biasing member to the first power-transmission member in a second elastically displaced state with greater elastic displacement than in the first state. The second power-transmission member is provided, on a first axial side of the spline part, with a canceling part configured to cancel the temporary fixing of the biasing member to the first power-transmission member by the temporarily fixing part.Type: GrantFiled: February 18, 2022Date of Patent: March 11, 2025Assignee: Mazda Motor CorporationInventors: Kotaro Suzuki, Koichi Ando, Nobuyuki Matsubara, Yuji Tashiro
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Patent number: 12246777Abstract: A vehicle-body structure may include a floor panel, a dash panel extending upward from a vehicle front portion of the floor panel and partitioning a vehicle front portion of an occupant space, a cooler disposed on a vehicle front side of the dash panel, a control device disposed in the occupant space, and a supply pipe through which a heat exchange medium subjected to heat exchange at a heat exchanger is supplied to the control device. The heat exchanger may be closer to the control device than a powertrain PT mounted on an automobile.Type: GrantFiled: September 8, 2022Date of Patent: March 11, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Hiroshi Tanaka, Takuma Inami, Nobuyuki Nakayama, Hiroyuki Baba
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Patent number: 12249878Abstract: An inverter is disposed adjacent to one end of a motor in a rotational axis direction. The inverter includes a plurality of power modules, a smoothing capacitor, busbars that connect the power modules to the smoothing capacitor, and a thin case that accommodates these components. The plurality of power modules are disposed at the periphery of the smoothing capacitor. The smoothing capacitor and each of the power modules are disposed in an inner portion of the thin case and arranged on the same plane orthogonal to the rotational axis direction. The busbars are formed to extend in the circumferential direction. An inner edge portion of each of the busbars has an arc shape or a circular shape.Type: GrantFiled: October 21, 2022Date of Patent: March 11, 2025Assignees: MAZDA MOTOR CORPORATION, ROHM CO., LTD.Inventors: Takayuki Sato, Masashi Hayashiguchi
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Patent number: D1068601Type: GrantFiled: January 25, 2023Date of Patent: April 1, 2025Assignee: MAZDA MOTOR CORPORATIONInventor: Mitsuhiro Kumeya
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Patent number: D1068608Type: GrantFiled: March 27, 2023Date of Patent: April 1, 2025Assignee: MAZDA MOTOR CORPORATIONInventors: Yoshito Iwauchi, Yuichiro Shida