Patents Assigned to Kabushiki Kaisha Toyota Chuo Kenkyusho
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Publication number: 20240287261Abstract: A method for producing a polymeric nanofiber aggregate comprises the steps of: dispersing a specific water-insoluble self-assembly compound in one solvent of a specific organic solvent and a mixed solvent of the organic solvent and water to obtain a gel-like composition; replacing the organic solvent in the gel-like composition with water to obtain a water-replaced gel-like composition; squeezing the water-replaced gel-like composition by compressing the water-replaced gel-like composition in a plurality of directions substantially orthogonal to a longitudinal direction while setting the water-replaced gel-like composition free in the longitudinal direction to obtain a self-assembly fiber bundle; and polymerizing the self-assembly compound in the self-assembly fiber bundle to obtain an aggregate formed of polymeric nanofibers oriented in the longitudinal direction.Type: ApplicationFiled: January 4, 2024Publication date: August 29, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Norihiro MIZOSHITA, Yuri SASAKI, Yumi SAIKI
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Publication number: 20240271336Abstract: A means for resolution is a carbon fiber precursor containing a crosslinked diene-based polymer and having a gel fraction of 40% or more, and its application.Type: ApplicationFiled: February 6, 2024Publication date: August 15, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Takuya Morishita, Mitsumasa Matsushita
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Publication number: 20240264237Abstract: An evaluation device includes: a first database that contains as data a measurement factor of a first type power storage device; a second database that contains as data a measurement factor of a second type power storage device which is different from the first type; and a conversion model that converts the data by machine learning. The evaluation device converts the data in the first database to the data in the second database using the conversion model, obtains a post-conversion database with data points greater in number than data points of the second database, and performs evaluation related to the second type power storage device using the post-conversion database.Type: ApplicationFiled: May 23, 2022Publication date: August 8, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Hirofumi HAZAMA, Hiroki KONDO
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Patent number: 12048900Abstract: 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: GrantFiled: September 7, 2018Date of Patent: July 30, 2024Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Shougo Higashi, Keisuke Shigetoh, Atsushi Beniya, Nobuhiko Muramoto, Kazutaka Nishikawa, Shin Tajima, Ryoji Asahi
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Publication number: 20240246826Abstract: [Problem] To provide a practical solid polymer fuel cell having high cell performance and excellent durability. [Means for solving] The polymer electrolyte fuel cell according to the present invention includes: a membrane electrode assembly in which electrodes each including a catalyst layer are joined to both surfaces of an electrolyte membrane; and a peroxide decomposition catalyst which is fixed to the electrolyte membrane and/or the electrodes and includes a hardly soluble carbide, a boride, and/or a silicide. The peroxide decomposition catalyst preferably contains a carbide, a boride and/or a silicide of a rare earth element, a transition metal element or a typical metal element.Type: ApplicationFiled: June 20, 2022Publication date: July 25, 2024Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Tomohiro TAKESHITA, Kazuhisa YANO, Rui IMOTO, Noriyuki KITAO, Kenji YAMAMOTO, Godai KITAYAMA
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Publication number: 20240240950Abstract: A route searching device may obtain map information including a plurality of roads. The route searching device may determine a reference position and a destination on the map information. The route searching device may determine a restricting condition for a mobile body to travel by departing from the reference position and reaching the destination. The route searching device may search a route from the reference position to the destination satisfying the restricting condition. The route searching device may identify a predetermined road from among the plurality of roads. The predetermined road may be a road on which the mobile body has travelled or which has been selected as the route before in the past. The route searching device may search the route such that a percentage at which the identified predetermined road is included in the route becomes low.Type: ApplicationFiled: December 18, 2023Publication date: July 18, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Keisuke OTAKI, Tomosuke MAEDA, Hiroyuki SAKAI, Takayoshi YOSHIMURA
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Publication number: 20240209248Abstract: An adhesive comprises a colloidal solution in which a coordination polymer containing a transition metal such as zinc or cobalt and an azole such as at least one kind of imidazoles is dispersed in a dispersion medium such as an alcohol.Type: ApplicationFiled: December 20, 2023Publication date: June 27, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Izuru MIYAZAKI, Mitsutaro UMEHARA, Yumi SAIKI, Shinya MORIBE, Akitoshi SUZUMURA
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Patent number: 12017401Abstract: A molding device may comprise a mold, a plate, and a ring. The mold may comprise: a lower surface; an upper surface parallel to the lower surface; a hole defined in a part of the upper surface; and a through hole extending from a bottom surface of the hole to the lower surface of the mold. The plate may comprise a surface with a gas outlet defined therein. The ring may be arranged between the lower surface of the mold and the surface of the plate and connecting the mold and the plate. The ring may surround the through hole exposed on the lower surface of the mold and the gas outlet exposed on the surface of the plate. In a region where the ring is not arranged, a space may be defined between the lower surface of the mold and the surface of the plate.Type: GrantFiled: February 3, 2023Date of Patent: June 25, 2024Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Norio Fujitsuka, Keiichi Shimaoka, Teruhisa Akashi, Shota Harada, Yuuki Inagaki, Katsuaki Goto, Keitaro Ito, Takahiko Yoshida
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Publication number: 20240201274Abstract: A detection device includes a detector and a controller. The detector has at least one resonator circuit applying at least one specific frequency vibration to a lithium-ion secondary battery, measures an attenuation characteristic of at least one resonant current, and outputs the attenuation characteristic as a detection signal. The controller detects lithium deposition and/or presence of foreign metal inside the lithium-ion secondary battery by using the detection signal of the attenuation characteristic acquired from the detector.Type: ApplicationFiled: June 14, 2022Publication date: June 20, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Keisuke ISHIKAWA, Masanori ISHIGAKI
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Publication number: 20240186550Abstract: Based on an operation condition ?(t) of a polymer electrolyte fuel cell at a time t, the concentration distribution of a radical generation ion and the concentration distribution of a radical scavenging ion in an electrolyte membrane are estimated. Next, a load command p(t+?t) at a time (t+?t) is acquired. Next, a reference operation condition ?ref(t+?t) under which the load command p(t+?t) can be realized is acquired. Next, whether or not a judgment index exceeds a first threshold value ?1 is judged. When the judgment index exceeds ?1, an operation condition which is different from ?ref(t+?t) and gives the judgment index of ?1 or less is selected as ?(t+?t). On the other hand, when the judgment index does not exceed ?1, ?ref(t+?t) is selected as ?(t+?t). The fuel cell system has a control device for performing such treatments.Type: ApplicationFiled: February 17, 2022Publication date: June 6, 2024Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masao SUZUKI, Naoki KITANO, Masahiro IMANISHI
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Patent number: 12003002Abstract: An object provides a power generation apparatus performing the purification of an Al alloy melt using scrap as raw material. A power generation apparatus includes: a container body with aluminum alloy melt and molten salt in a liquid junction with the aluminum alloy melt; an anode which is in contact with the aluminum alloy melt; and a cathode which is in contact with the molten salt. DC power is obtained from between the anode and the cathode by an anode reaction on the aluminum alloy melt side and a cathode reaction on the molten salt side. When the aluminum alloy melt and the molten salt are separated by a separator allowing ionic conduction between the aluminum alloy melt and molten salt, the power generation efficiency is enhanced. The amount of a reactant in the Al alloy melt is monitored by measuring the electrical quantity associated with the power generation.Type: GrantFiled: June 15, 2021Date of Patent: June 4, 2024Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Jun Yaokawa, Kazuma Hibi, Takuma Minoura, Hiroshi Kawahara, Yasushi Iwata
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Publication number: 20240149260Abstract: The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer contains first catalyst particles and lies on the substrate across a first region extending between the upstream end and a first position. The first position is at a first distance from the upstream end toward the downstream end. The second catalyst layer contains second catalyst particles and lies on the first catalyst layer across the first region. The second catalyst layer is provided with pores. Pore connectivity of the second catalyst layer is 5% to 35%. A mean value of areas of the pores of the second catalyst layer in a cross-sectional backscattered electron image of the second catalyst layer may be 0.7 ?m2 to 9.0 ?m2.Type: ApplicationFiled: November 7, 2023Publication date: May 9, 2024Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, CATALER CORPORATIONInventors: Nobusuke KABASHIMA, Toshio YAMAMOTO, Miho HATANAKA, Tetsuya SHINOZAKI
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Patent number: 11969813Abstract: A spot welding method includes a heating step of energizing an electrode in pressure contact with an Al alloy member to heat and melt a join part by resistance heating and a cooling step of cooling the join part after the heating step in a state in which the electrode is in pressure contact with the Al alloy member. The alloy is a wrought alloy of Mg: 0.2 to 1.2 mass %, Si: 0.4 to 1.5%, and Cu: 1.1% or less or a casting alloy of Si: 7 to 11% and Mg: 0.1 to 0.4% with respect to 100% as a whole. The cooling step includes a first cooling process performed with a reduced amount of input energy to the join part as compared with the heating step and a second cooling process performed after the first cooling process at a higher cooling rate than that in the first cooling process.Type: GrantFiled: February 25, 2021Date of Patent: April 30, 2024Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideaki Matsuoka, Takanori Nakagaki, Kyosuke Izuno, Koki Nakada, Manabu Ooga
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Patent number: 11970669Abstract: [Technical Problem] An object is to provide a lubricant capable of forming a stable adsorption film on a sliding surface and stabilizing the sliding characteristics (for example, ensuring the wear resistance, etc.). [Solution to Problem] The present invention provides a lubricant represented by the following chemical structural formula. (R: a hydrocarbon group whose carbon number is 8 to 24, m and n: integers of 2 to 8) [Selected Figure] FIG.Type: GrantFiled: January 27, 2023Date of Patent: April 30, 2024Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Mamoru Tohyama, Hiroshi Moritani, Shigeru Hotta, Norikazu Sato, Hisato Takeuchi, Yoshihiro Kikuzawa, Tomoyuki Kinjo
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Publication number: 20240068128Abstract: A heat-resistant member comprises: a substrate made of isotropic graphite; a single-layered dense low-emissivity layer covering part of surfaces of the substrate; and a single-layered or multi-layered dense high-emissivity layer covering all or part of the remaining surfaces of the substrate. The dense low-emissivity layer has an outermost surface with an emissivity of ?A, and has a relative density of 97% or more. The dense high-emissivity layer has an outermost surface with an emissivity of ?B (>?A), and has a high-density region with a relative density of 97% or more in any portion between the outermost surface and the interface with the substrate. Preferably, an emissivity difference (?B??A) is 0.1 or more.Type: ApplicationFiled: January 25, 2022Publication date: February 29, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventor: Daisuke NAKAMURA
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Patent number: 11915924Abstract: A recess is formed in one silicon substrate. A silicon oxide film is formed in another one silicon substrate at a portion space apart from a space-to-be-formed region. The silicon oxide film has a groove surrounding the space-to-be-formed region and extending to an outer periphery of the other one silicon substrate. Further, the other one silicon substrate and the one silicon substrate are directly bonded to each other via the silicon oxide film so as to cover the groove. A gas discharge passage, a stacking structure of the silicon substrates and the silicon oxide film are formed, and the space is formed inside the stacking structure by the recess. Then, by the heat treatment, the gas inside the space is discharged to the outside of the stacking structure through the gas discharge passage.Type: GrantFiled: September 24, 2020Date of Patent: February 27, 2024Assignees: DENSO CORPORATION, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Megumi Suzuki, Yasuo Yamamoto, Teruhisa Akashi
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Publication number: 20240052531Abstract: A method for a fiber bundle, including a heating process of Joule-heating the fiber bundle by energization between at least a pair of electrodes. The fiber bundle is carried in contact with the electrodes and has electrical conductivity at least between the electrodes. At least one of the electrodes has an aggregating structure that aggregates the fiber bundle while being in contact with the outer surface of fiber bundle. The aggregating structure has a trench or cylindrical shape with a structural surface that narrows in the depth direction. When the electrodes are each composed of a rotating body, the aggregating structure is a trench provided on the outer surface of the rotating body. The trench has a bottom surface that narrows toward a rotation center side. The trench may have a widened portion on the outer peripheral edge side. The widened portion guides the fiber bundle to the bottom surface.Type: ApplicationFiled: July 27, 2023Publication date: February 15, 2024Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihide KATAGIRI, Takuya MORISHITA, Yuka YAMADA, Akira KUNITOMO
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Publication number: 20240044827Abstract: A detection device for detecting a status of a lithium-ion secondary battery includes a control module that acquires real part of AC impedance at a frequency at which the real part of the AC impedance is increased 10 times or more than the real part of the AC impedance at 1 kHz due to a skin effect, and detects deposition of lithium and/or the presence of foreign metal inside the lithium-ion secondary battery by using the acquired real part of the AC impedance.Type: ApplicationFiled: December 28, 2021Publication date: February 8, 2024Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Masanori ISHIGAKI, Keisuke ISHIKAWA
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Patent number: 11894717Abstract: A power supply system including: a DC power trunk line; a demand-side device; a supply-side device that is configured to supply electric power and that is connected with the DC power trunk line to output a DC power to the demand-side device that is connected with the DC power trunk line to receive a DC power, and a calculator that is configured to: set a power-feeding voltage of the supply-side device on a supply side; set a power-receiving voltage of the demand-side device on a demand side; and regard a charge amount or a time integration of current value supplied from the supply-side device to the DC power trunk line, as well as a charge amount or a time integration of current value supplied from the DC power trunk line to the demand-side device, as an amount of power interchange.Type: GrantFiled: December 17, 2021Date of Patent: February 6, 2024Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventor: Tatsuo Fukano
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Publication number: 20230406720Abstract: Porous oxide semiconductor particles have a connected structure in which porous primary particles having an aggregate of crystallites composed of an oxide semiconductor are connected to each other and have a specific surface area of 60 m2/g or more. The porous oxide semiconductor particles have preferably a pore diameter of 1 nm or more and 20 nm or less. The porous oxide semiconductor particles have preferably a tap density of 0.005 g/cm3 or more and 1.0 g/cm3 or less. The oxide semiconductor is preferably SnO2 or SnO2 doped with at least one element selected from the group consisting of Nb, Sb, W, Ta, and Al.Type: ApplicationFiled: October 14, 2021Publication date: December 21, 2023Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanori INABA, Kazuhisa YANO, Tomohiro TAKESHITA, Kensaku KODAMA, Toshiyuki SUZUKI