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公开(公告)号:US20250163080A1
公开(公告)日:2025-05-22
申请号:US18948705
申请日:2024-11-15
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI , Takuro Yokoya
Abstract: The present disclosure provides means for producing a MOF having an RHO-type topology with a high gas adsorption property in high yields. One aspect of the present disclosure relates to a metal organic framework containing metal ions as zinc cations and ligands as 2-ethylimidazole (2-EtIm) or monocarboxylic acid anions. The metal organic framework has an RHO-type topology in which the 2-EtIm anions are partially substituted with the monocarboxylic acid anions. Another aspect of the disclosure relates to a method for producing the metal organic framework having the above-described features.
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公开(公告)号:US20170102191A1
公开(公告)日:2017-04-13
申请号:US15286034
申请日:2016-10-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI , Masaki WATANABE
CPC classification number: F28D20/0039 , B60K6/00 , C09K5/00 , F28D20/0034 , F28D2020/0082 , F28D2021/0028 , F28D2021/008 , F28F27/02 , Y02E60/142
Abstract: A heat storage apparatus includes: a first tank; a second tank that is provided above the first tank; an on-off valve; and a heat storage solution that is accommodated in the first tank and the second tank. The heat storage solution has a characteristic of absorbing heat and separating into a first liquid and a second liquid having a lower density than the first liquid at a lower critical solution temperature or higher, the first liquid and the second liquid have a characteristic of releasing heat and mixing with each other at a temperature lower than the lower critical solution temperature, and when the heat storage solution separates into the first liquid and the second liquid, the first liquid is accommodated in the first tank and the second liquid is accommodated in the second tank.
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3.
公开(公告)号:US20200010486A1
公开(公告)日:2020-01-09
申请号:US16435743
申请日:2019-06-10
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI
Abstract: [OBJECT] To provide a metal-organic framework having high hygroscopicity under low humidity conditions, and a method for producing such a metal-organic framework.[SOLVING MEANS] A method for producing a coordinatively unsaturated metal-organic framework includes the steps of providing a precursor metal-organic framework comprising a metal cluster and a polycarboxylic acid ion and a monocarboxylic acid ion coordinated to the metal cluster, and allowing the precursor metal-organic framework and a metal salt having a Lewis acidity to coexist in a solvent to desorb at least a part of the monocarboxylic acid ion, which is coordinated to the metal cluster, from the metal cluster, as well as a coordinatively unsaturated metal-organic framework, including an M6O8-x(OH)x-type metal cluster and carboxylic acid ions including a polycarboxylic acid ion as a polydentate ligand and a C1-3 monocarboxylic acid ion as a monodentate ligand coordinated to the metal cluster.
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公开(公告)号:US20190186430A1
公开(公告)日:2019-06-20
申请号:US16160280
申请日:2018-10-15
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Tomohiro SHINAGAWA , Takashi HOTTA , Takeo YAMAGUCHI , Yoshio OHASHI , Taizo YOSHINAGA , Yuji MIYOSHI
Abstract: An EGR cooler in the disclosure includes: a gas path configured to allow an EGR gas to flow; a refrigerant path configured to perform heat exchange between the EGR gas circulating along the gas path and a refrigerant; an exothermic body containing portion configured such that an exothermic body to generate heat by adsorbing a predetermined working gas is contained within the EGR cooler and at least a part of the exothermic body contacts with a wall surface of the gas path; a working gas tank in which the working gas is stored; and a gas moving apparatus configured to move the working gas stored in the working gas tank, from the working gas tank to the exothermic body containing portion.
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公开(公告)号:US20250161919A1
公开(公告)日:2025-05-22
申请号:US18945703
申请日:2024-11-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI , Naoto NAGATA
Abstract: Provided is an inexpensive oxygen storage material having an excellent oxygen release performance at low temperature. The present disclosure relates to an oxygen storage material containing a composite oxide. The composite oxide contains cerium and/or europium and silicon and/or phosphorus. The composite oxide has an apatite-type crystalline structure.
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公开(公告)号:US20180280929A1
公开(公告)日:2018-10-04
申请号:US15939662
申请日:2018-03-29
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI
Abstract: A metal-organic framework includes: a tetravalent Group 4 element ion or a tetravalent rare earth ion as a metal ion; and an ion of a first organic molecule having a trimesic acid skeleton and an ion of a second organic molecule having an isophthalic acid skeleton as multidentate ligands.
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公开(公告)号:US20250059056A1
公开(公告)日:2025-02-20
申请号:US18756470
申请日:2024-06-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI
Abstract: The present disclosure provides a novel metal organic framework and a gas adsorbing material containing the metal organic framework. The metal organic framework in one aspect of the embodiment contains zinc (Zn) and at least one ligand selected from 4-methylimidazole (4-MeIm), imidazole (Im), and benzimidazole (BzIm). When a mole ratio of the 4-MeIm, Im, and BzIm is x:y:z (4-MeIm:Im:BzIm), the mole ratio x:y:z falls within a polygonal region (including on a boundary line) having the following vertices in a ternary composition diagram: A (1:0:0), B (0.608:0.392:0), C (0.407:0.441:0.152), D (0.278:0.496:0.226), E (0:0.613:0.387), F (0:0.388:0.612), G (0.221:0.277:0.502), H (0.455:0.117:0.428), and I (0.563:0:0.437).
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公开(公告)号:US20200330956A1
公开(公告)日:2020-10-22
申请号:US16827770
申请日:2020-03-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI
IPC: B01J20/22 , B01D53/26 , B01D53/02 , C07F5/06 , C07D307/68 , C07D213/80 , F25B30/00
Abstract: The present invention provides a metal-organic framework which can both adsorb water vapor in low relative humidity and reduce the magnitude of the humidity difference between the adsorption humidity and the desorption humidity.A metal organic framework wherein the metal ion is an aluminum ion, a first ligand is an organic compound ion consisting of a first heterocycle having two carboxyl groups, and a heteroatom composing the first heterocycle is present on the minor angle side of the angle created by the two carboxyl groups, a second ligand is different than the first ligand, is an organic compound ion consisting of a second heterocycle having two carboxyl groups, and a heteroatom composing the second heterocycle is present on the major angle side of the angle create by the two carboxyl groups, and a third ligand is different than the first ligand and the second ligand, is an organic compound ion having two carboxyl groups, and the first ligand, second ligand, and third ligand are present in a specific ratio.
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9.
公开(公告)号:US20190331368A1
公开(公告)日:2019-10-31
申请号:US16391707
申请日:2019-04-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Kimihiro TSUCHIYA , Yoshio OHASHI
Abstract: A heat storage material has a high hydration capacity, which does not readily deliquesce and can be effectively used. A method produces such a heat storage material, and a chemical heat pump and heat storage method use such a heat storage material. The heat storage material is a composite metal halide including a monovalent metal, a divalent metal, and a halogen. The method for producing the heat storage material includes preparing a mixture in which a monovalent metal halide and a divalent metal halide hydrate are mixed, and generating the composite metal halide by subjecting the mixture to a heat treatment. The chemical heat pump includes a water storage unit storing water as a working medium, a heat storage material retention unit retaining the heat storage material, and a water vapor flow path allowing water to flow vapor between the water storage unit and the heat storage material retention unit.
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公开(公告)号:US20190194232A1
公开(公告)日:2019-06-27
申请号:US16229689
申请日:2018-12-21
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Yoshio OHASHI
CPC classification number: C07F7/003 , B01D53/261 , B01D2253/204 , B01D2253/306 , B01D2253/31 , B01D2253/311 , B01D2255/2065 , B01D2255/20715 , B01J20/226
Abstract: A metal-organic framework of the present disclosure includes tetravalent Group IV element ions or rare earth ions as metal ions, first ions of organic molecules having a trimesic acid framework as tridentate ligands, and second ions of organic molecules having a heterocycle and two carboxy groups as bidentate ligands.
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