Sharp Kabushiki Kaisha Corporation

Yuka Utsumi

Takashi Yamashita

Tetsuya Ide

Hisanori Bessho

Tomoko Kase

Daiji Sawada

Yasuyuki Umenaka

Tomohisa Miyatani

Masakazu Kamura

Kazuhiro Deguchi

Kyohei Sezukuri

Mitsuhiro Koden

Shigeaki Mizushima

Akio Miyata

Masao Urayama

Katsumi Kondoh

Satoru Motonami

Hwisim Hwang

Yusuke Ikeda

Kiyoshi Minoura

Yasushi Asaoka

Akiyoshi Fujii

Miho Yamada

Takahiro Nakahara

Daisuke Shinozaki

Yuhsuke Tsuda

Hidetsugu Matsukiyo

Yuichi Kamimura

Takahiro Adachi

Kyohko Matsuura

Katsuya Kido

Provided is a latent heat storage material capable of keeping an object to be refrigerated, such as frozen food or ice cream, cold at a temperature of −20° C. or lower for a long period of time, and of reducing power consumption required at a time of solidification. The latent heat storage material contains 5 to 21 parts by weight of ammonium chloride, 2 to 13 parts by weight of potassium chloride, 5 to 23 parts by weight of urea, and 43 to 88 parts by weight of water. The total of the ammonium chloride, the potassium chloride, the urea, and the water is 100 parts by weight, and the latent heat storage material has a main melting point in a range from −20° C. to −23° C.

Latent heat storage material, cold storage tool, distribution packing container, and cold storage tool for food

A method of treating an aqueous solution containing quantum dots, the method includes: a dissolution liquid preparation step of dissolving a quaternary ammonium salt and a potassium salt in an aqueous solution containing quantum dots to prepare a dissolution liquid; a phase separation step of heating the dissolution liquid to separate the dissolution liquid into two phases, which are a quaternary ammonium salt phase containing a large amount of the quaternary ammonium salt and a potassium salt phase containing a large amount of the potassium salt, and also to cause the quantum dots to be included in either one of the quaternary ammonium salt phase and the potassium salt phase; and a fractionation step of separating the quaternary ammonium salt phase and the potassium salt phase by fractionation.

Method of treating quantum dot-containing aqueous solution

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.

Latent heat storage material, and cold storage tool, logistic packaging container, food cold storage tool and cooling method each using same

Provided are a latent heat storage material having a melting point within a prescribed temperature range; a latent heat. The latent heat storage material includes a compound (A) represented by a formula (A), an inorganic salt (B) represented by a formula (B) and composed of a cation of an alkali metal and an anion of the same element as the anion of the quaternary alkyl salt, and water. The compound (A) is a material that forms a clathrate hydrate together with the water, the composition ratio of the compound (A) and water is a composition ratio that gives a congruent melting point of the clathrate hydrate, and the molar ratio of the inorganic salt (B) to the compound (A) is 0.1 or more and 10 or less.

Latent heat storage material, and cold storage tool, logistic packaging container, transportation method, human body refrigeration tool and cold storage tool for beverages each using same

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 materialthat undergoes a phase change at a particular temperature and a first container containing the freezing material. 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&#x2dc;S1/2&#xb7;K)) of 1,000 to 2,000.

Cooling tool and treatment tool used in cryotherapy

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.

Heat-storage material and refrigerator and cooling container that include the heat-storage material

An object to be cooled is quickly brought to a suitable temperature. An object to be cooled is quickly brought to a suitable temperature. A thermal energy storage packaccording to the present invention is a thermal energy storage pack that performs temperature management of food and/or beverage, and includes a first deep-drawn container filled with a first thermal energy storage material that exhibits phase change at a predetermined temperature, a second deep-drawn container that is overlaid by the first accommodation portion and that is filled with a second thermal energy storage material that maintains a liquid phase state at the phase change temperature of the first thermal energy storage material, and a cover material that closes off the first deep-drawn container. The second deep-drawn container comes into contact with a wine bottle.

Thermal energy storage pack, thermal exchange unit, and manufacturing method of thermal energy storage pack

It is an object of the present invention to provide a thermal energy storage member having sufficient dissipation capabilities and a storage container using the same, and a refrigerator using the same. A thermal energy storage memberincludes: a thin-plate outer shape having an opposing upper faceand lower face; a thermal energy storage materialfilled in the inside of a package material; and a thermal conduction amount adjusting portionthat, in a case where difference occurs between temperature at the upper faceside and temperature at the lower faceside, reduces difference in thermal conduction amount per unit of time at the upper faceand the lower face

Thermal energy storage member and storage container using the same, and refrigerator using the same

The invention aims to provide a heat-storage material which can prevent supercooling. The heat-storage material according to the invention includes: a heat-storage substance which reversibly changes between an aqueous solution containing tetraalkylammonium salt and a clathrate hydrate containing the tetraalkylammonium salt as a guest molecule; and alum which is added to the aqueous solution containing tetraalkylammonium salt. Tetrabutylammonium bromide is used as the tetraalkylammonium salt. Potassium alum or ammonium alum is used as the alum.

Heat-storage material, and heat-storage member, storage container, transportation/storage container, construction material, and architectural structure using the same

The present invention is intended to provide a storage container that includes a shelf member holding a heat storage material arranged optimally. In a storage container that preserves an object at predetermined temperature, the storage container includes a storage room in which the object is preserved, and a shelf member disposed within the storage room, the shelf member including a flat portion on which the object is placed, and a heat storage material arranged to the flat portion in a way distributed depending on a temperature distribution near the flat portion within the storage room during steady operation. The heat storage material is arranged to be localized to a region of the flat portion at a relatively low-temperature side depending on the temperature distribution within the storage room.

Storage container with heat storage material that provides heat to shelf included in storage container

It is an object of the present invention to provide a heat storage capsule capable of being readily produced and a heat storage member using the same. A heat storage capsuleincludes a heat storage materialreversibly changing into a hydrate of a salt and an aqueous solution of the salt and also includes a capsule coatingencapsulating the heat storage material. The capsule coatingincludes an inner sub-coatingand an outer sub-coating. The inner sub-coatingis a hydrogenated oil layer. The outer sub-coatingis made of a hydrophilic gel. The heat storage capsulehas a W/O/W three-layer structure.

Heat storage capsule and heat storage member using the same

The present invention aims to provide cooling equipment which can reduce power consumption. Cooling equipmentincludes a storage chamberthat stores storage goods; latent heat storage materialstodisposed inside the storage chamber; a compressorthat configures a refrigerating cycle for cooling the inside of the storage chamber; a temperature sensorthat detects a temperature of the latent heat storage materialsto; and a control unitthat controls the compressor, based on a state of the latent heat storage materialsto

Cooling equipment, temperature control system, air conditioning system, and hot water supply system for the same

An object is to provide a storage container including latent heat storage materials that provide a high cold insulation effect. A storage containerhas an electric cooling function and stores an object. The storage containerincludes at least one storage chamberthat stores the object; a first latent heat storage material A that is disposed in the storage chamberand has a predetermined phase change temperature; and a second latent heat storage material B that is disposed in the storage chamberand has a phase change temperature higher than the phase change temperature of the first latent heat storage material A.

Storage container

A cleaning solution is used, in a transparent antireflective structure that has, on one surface thereof, a plurality of convexities formed at a period equal to or shorter than wavelength in a visible light range, and that prevents, at the one surface, reflection of light entering the one surface, to clean a concavity defining a region between adjacent two of the plural convexities, the cleaning solution having a pH of 10.00 or more.

Cleaning solution, cleaning tool, and cleaning kit

Performance of heat insulation between the outside of a storage container and the inside of a storage chamber is effectively improved. The storage container includes a container body having an opening, a door member closing the opening in an openable and closable manner, and a temperature-controlled unit having a function of making a temperature inside a storage chamberenclosed by the container body and the door member be different from a temperature outside the storage chamber. The container body includes a first heat-insulating material, a second heat-insulating materialwhich is provided partially on the opposite side to the storage chamberwith respect to the first heat-insulating materialand has thermal conductivity lower than that of the first heat-insulating material, and a heat-storage materialwhich is provided at least partially in a region where the second heat-insulating materialis not provided as viewed from a thickness direction of the first heat-insulating materialon the same side as the storage chamberwith respect to the first heat-insulating materialand is formed of one or more kinds of raw material where phase transition is caused between a liquid phase and a solid phase at a temperature between the temperature outside the storage chamberand the temperature inside the storage chamberobtained by the function of the temperature-controlled unit.

Storage container utilizing two different heat insulating materials in combination with a temperature control unit and a heat storage material placed within the container

Growing community of inventors

Osaka, Japan

Yuka Utsumi