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公开(公告)号：US20210047549A1
公开(公告)日：2021-02-18
申请号：US16964454
申请日：2019-01-23
Applicant: SHARP KABUSHIKI KAISHA
Inventor： MASAKAZU KAMURA , KYOHEI SEZUKURI , YUKA UTSUMI
Abstract: Provided are a latent heat storage material that changes the phase within a prescribed temperature range, and a cold storage tool, a logistic packaging container, and a food cold storage tool each using the latent heat storage material, and a cooling method. The latent heat storage material includes a tetrabutylammonium ion and a bromide ion constituting tetrabutylammonium bromide, a potassium ion and a nitrate ion constituting potassium nitrate, and water. The molar ratio of potassium nitrate to tetrabutylammonium bromide is 0.3 or more and 1.3 or less, and the molar ratio of water to tetrabutylammonium bromide is 22 or more and 32 or less.
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12.发明申请公开(公告)号：US20200248057A1
公开(公告)日：2020-08-06
申请号：US16634066
申请日：2018-07-30
Applicant: SHARP KABUSHIKI KAISHA
Inventor： KYOHEI SEZUKURI , MASAKAZU KAMURA , SATORU MOTONAMI , YUKA UTSUMI , KATSUYA KIDO
Abstract: The present invention, in an embodiment thereof, provides a latent heat storage material containing a supercooling inhibitor that, if added to an aqueous solution of an inorganic salt including sodium chloride, restrains supercooling by unfailingly precipitating as crystals upon cooling and therefore only marginally lowers the melting point and reduces latent heat. The latent heat storage material contains: an aqueous solution of sodium chloride; and a eutectic aqueous solution of sodium chloride and disodium hydrogen phosphate in an amount that, in comparison with the eutectic aqueous solution of sodium chloride, is greater than or equal to an amount that gives a saturation concentration at 0° C. This arrangement makes a sufficient amount of latent heat available for cooling white restraining supercooling, by using a latent heat storage material containing a supercooling inhibitor that restrains supercooling by unfailingly precipitating as crystals upon cooling and that therefore only marginally lowers the melting point and reduces latent heat.
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公开(公告)号：US20200231856A1
公开(公告)日：2020-07-23
申请号：US16630164
申请日：2018-07-09
Applicant: SHARP KABUSHIKI KAISHA
Inventor： SATORU MOTONAMI , YUKA UTSUMI , KYOHEI SEZUKURI , MASAKAZU KAMURA , HWISIM HWANG
Abstract: A thermal storage material changes phase at a prescribed temperature. The thermal storage material includes water, a base compound including a quaternary ammonium salt that forms a semi-clathrate hydrate; and potassium hydrogen carbonate. The potassium hydrogen carbonate is saturated at an onset temperature of solidification.
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14.发明申请公开(公告)号：US20190390921A1
公开(公告)日：2019-12-26
申请号：US16483930
申请日：2018-02-06
Applicant: SHARP KABUSHIKI KAISHA
Inventor： MASAKAZU KAMURA , HWISIM HWANG , KYOHEI SEZUKURI , YUKA UTSUMI
Abstract: Provided is a cooling device in which a latent heat storage material is at least made dormant during physical distribution to thereby cause the cooling function to last longer. A cooling device used for a distribution packaging container and configured to perform temperature adjustment of a cooling target article includes a latent heat storage material having a supercooling characteristic, and having a temperature range of a dormant period between a solidification temperature of start of a phase change from a liquid phase to a solid phase and a melting start temperature of start of a phase change from a solid phase to a liquid phase; and a containing region containing the latent heat storage material, wherein the latent heat storage material is selected in accordance with a proper holding temperature range of the cooling target article such that a main melting temperature falls within the proper holding temperature range of the cooling target article, and the temperature range of the dormant period and the proper holding temperature range of the cooling target article at least have an overlapping range.
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15.发明申请公开(公告)号：US20190002748A1
公开(公告)日：2019-01-03
申请号：US16065450
申请日：2016-12-19
Applicant: SHARP KABUSHIKI KAISHA
Inventor： SATORU MOTONAMI , YUKA UTSUMI , MASAO URAYAMA , HISANORI BESSHO , DAIJI SAWADA , TAKASHI YAMASHITA
Abstract: A heat-storage material that provides a sufficiently large amount of thermal energy as a latent-heat storage material including a semiclathrate hydrate and that improves hysteresis between the solidifying temperature and the melting starting temperature and a refrigerator and a cooling container that include the heat-storage material are provided. The heat-storage material that changes phase at a predetermined temperature includes water, a main agent including a quaternary ammonium salt that forms a semiclathrate hydrate, a pH adjuster that maintains alkaline properties, and a nucleating agent that generates a cation that exhibits positive hydration. In such an aqueous solution maintained to be alkaline, the nucleating agent becomes a nucleus in solidification, and thus, the temperature difference between the solidifying temperature and the melting temperature can be decreased.
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Patent Agency Ranking
公开(公告)号：US20210270514A1
公开(公告)日：2021-09-02
申请号：US17256188
申请日：2019-05-27
Applicant: SHARP KABUSHIKI KAISHA
Inventor： MASAKAZU KAMURA , KYOHEI SEZUKURI , HWISIM HWANG , SATORU MOTONAMI , YUKA UTSUMI
Abstract: A cold storage pack, a method of transporting an object at low temperature, and a method of manufacturing the cold storage pack are provided in a film pack of cold storage material. The film pack of cold storage material can be propped up with on a certain side thereof as a bottom, and even when it is propped up, the uniformity of the filling density of the latent heat cold storage material is higher. The cold storage pack includes: an encasing section composed of films facing each other and filled with a latent heat storage material therein; a linear external sealing section attached to a periphery of the encasing section to prevent the latent heat storage material from leaking out; and at least one linear internal sealing section extending inwards of the encasing section and adhering internal upper and lower faces of the encasing section together.
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17.发明申请公开(公告)号：US20210247122A1
公开(公告)日：2021-08-12
申请号：US16972562
申请日：2019-05-27
Applicant: SHARP KABUSHIKI KAISHA
Inventor： KYOHEI SEZUKURI , YUKA UTSUMI , MASAKAZU KAMURA , DAISUKE SHINOZAKI
Abstract: A cold storage pack includes: heat exchange sections arranged in a first direction and in a second direction intersecting with the first direction; and a connecting section connecting the heat exchange sections that are adjacent, wherein the heat exchange sections each include: a latent heat storage material having a melting point lower than room temperature; and a container section having an internal space containing the latent heat storage material in a liquid-tight manner, the connecting section includes: an easy cutting section that is cuttable between the heat exchange sections; a frame-shaped section surrounding the heat exchange sections; a first connecting section extending between the heat exchange sections in the first direction; and a second connecting section extending between the heat exchange sections in the second direction, and the easy cutting section is continuous at least from an outer periphery of the frame-shaped section partway through the first connecting section.
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公开(公告)号：US20210214599A1
公开(公告)日：2021-07-15
申请号：US15734112
申请日：2019-06-04
Applicant: SHARP KABUSHIKI KAISHA
Inventor： SATORU MOTONAMI , MASAKAZU KAMURA , YUKA UTSUMI , KYOHEI SEZUKURI
Abstract: There is provided a latent heat storage material that retains the cold insulation capability thereof and is still restrained from supercooling. The latent heat storage material includes: quaternary ammonium ions and first anions that together form a quaternary ammonium salt; water; and calcium carbonate, wherein the quaternary ammonium salt and the water can form a clathrate hydrate, the quaternary ammonium salt and the water have a composition ratio in which the quaternary ammonium salt and the water can at least form the clathrate hydrate, and the calcium carbonate has an addition ratio relative to a mass of an aqueous solution that is the latent heat storage material excluding the calcium carbonate, the addition ratio being higher than a solubility of the calcium carbonate in the aqueous solution at an onset temperature of melting of the aqueous solution that is the latent heat storage material excluding the calcium carbonate.
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公开(公告)号：US20210009333A1
公开(公告)日：2021-01-14
申请号：US16982780
申请日：2019-03-20
Applicant: SHARP KABUSHIKI KAISHA
Inventor： HWISIM HWANG , DAISUKE SHINOZAKI , YUKA UTSUMI , MASAKAZU KAMURA , TOMOKO KASE , SATORU MOTONAMI , KYOHEI SEZUKURI , KATSUYA KIDO
Abstract: Provided is a cold insulation tool capable of easily producing ice slurry. The cold insulation tool includes an outer casing that is provided to accommodate a tubular storage container filled with a beverage, a heat exchange unit that is detachably provided in the outer casing, and a stimulating unit that increases a surface area of at least a part of a gas-liquid interface of the beverage, in which the heat exchange unit includes a heat-storage material having a predetermined melting point, and a filling portion that has an internal space for filling with the heat-storage material liquid-tightly, and the melting point of the heat-storage material is lower than −0.2° C.
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公开(公告)号：US20200078213A1
公开(公告)日：2020-03-12
申请号：US16462685
申请日：2017-11-17
Applicant: SHARP KABUSHIKI KAISHA
Inventor： DAISUKE SHINOZAKI , YUKA UTSUMI , SATORU MOTONAMI
IPC: A61F7/10
Abstract: A human body is cooled at an appropriate temperature, and a sufficient usage time is ensured. A cooling tool according to one aspect of the present invention is a cooling tool for cooling a human body, including a freezing material 30a that undergoes a phase change at a particular temperature and a first container containing the freezing material 30a. The first container transfers heat between the human body and the freezing material at a contact surface in contact with the skin of the human body. At least the contact surface has a thermal effusivity within the possible range of thermal effusivity of the skin of the human body. The contact surface may have a thermal effusivity (J/(m2˜S1/2·K)) of 1,000 to 2,000.
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