Patents by Inventor Yuka Utsumi

Yuka Utsumi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210009333
    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.
    Type: Application
    Filed: March 20, 2019
    Publication date: January 14, 2021
    Inventors: HWISIM HWANG, DAISUKE SHINOZAKI, YUKA UTSUMI, MASAKAZU KAMURA, TOMOKO KASE, SATORU MOTONAMI, KYOHEI SEZUKURI, KATSUYA KIDO
  • Publication number: 20200363119
    Abstract: Provided is a cooling device capable of appropriately cooling a cold insulator and keeping the cold insulator at an appropriate temperature. The cooling device includes a cooling portion that has an inner space storing an object, a measurement means of measuring a temperature corresponding to a temperature of the object stored in the inner space, and a control means of controlling a temperature of the inner space based on a measurement result by the measurement means, in which, based on the measurement result, the control means performs control to change the temperature of the inner space from a first setting temperature that is lower than a temperature at which the object in a liquid phase starts to be solidified to a second setting temperature that is higher than the first setting temperature and lower than a melting temperature of the object.
    Type: Application
    Filed: December 21, 2018
    Publication date: November 19, 2020
    Inventors: DAISUKE SHINOZAKI, YUKA UTSUMI, MASAKAZU KAMURA, HWISIM HWANG, TOMOKO KASE, KYOHEI SEZUKURI
  • Patent number: 10823477
    Abstract: 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 member 1 includes: a thin-plate outer shape having an opposing upper face 1a and lower face 1b; a thermal energy storage material 3 filled in the inside of a package material 2; and a thermal conduction amount adjusting portion 4 that, in a case where difference occurs between temperature at the upper face 1a side and temperature at the lower face 1b side, reduces difference in thermal conduction amount per unit of time at the upper face 1a and the lower face 1b.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: November 3, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hisanori Bessho, Tomoko Kase, Takashi Yamashita, Yuka Utsumi, Tomohisa Miyatani, Tetsuya Ide, Daiji Sawada
  • Publication number: 20200248057
    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.
    Type: Application
    Filed: July 30, 2018
    Publication date: August 6, 2020
    Inventors: KYOHEI SEZUKURI, MASAKAZU KAMURA, SATORU MOTONAMI, YUKA UTSUMI, KATSUYA KIDO
  • Publication number: 20200231856
    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.
    Type: Application
    Filed: July 9, 2018
    Publication date: July 23, 2020
    Inventors: SATORU MOTONAMI, YUKA UTSUMI, KYOHEI SEZUKURI, MASAKAZU KAMURA, HWISIM HWANG
  • Publication number: 20200078213
    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.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 12, 2020
    Inventors: DAISUKE SHINOZAKI, YUKA UTSUMI, SATORU MOTONAMI
  • Publication number: 20200069461
    Abstract: Provided is a cooling tool that keeps a cooling object cold by utilizing the latent heat of a cold storage material and can visualize the physical condition of the cooling tool, i.e., can indicate whether the use condition of the cooling tool is appropriate. For example, when leakage of the cold storage material occurs, the cooling tool indicates the leakage of the cold storage material and shows whether the temperature is appropriate for keeping the cooling object cold. The cooling tool keeps the cooling object cold by utilizing the latent heat of a freezable material and includes: the freezable material that undergoes phase change at a specific temperature; a cold storage layer including a first container portion that contains the freezable material; and a condition indicator that shows the physical condition of the freezable material.
    Type: Application
    Filed: November 16, 2017
    Publication date: March 5, 2020
    Inventors: DAISUKE SHINOZAKI, YUKA UTSUMI, SATORU MOTONAMI
  • Publication number: 20190390921
    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.
    Type: Application
    Filed: February 6, 2018
    Publication date: December 26, 2019
    Inventors: MASAKAZU KAMURA, HWISIM HWANG, KYOHEI SEZUKURI, YUKA UTSUMI
  • Publication number: 20190367790
    Abstract: It is an object to provide a heat storage medium capable of maintaining the latent heat capacity even if a supercooling inhibitor is added. A heat storage medium according to an aspect of the present invention is a heat storage medium which undergoes a phase change at a predetermined temperature and contains water, a main agent made of a quaternary ammonium salt forming a semi-clathrate hydrate, a pH adjustor maintaining alkalinity, and a nucleating agent generating cations exhibiting positive hydration. The heat storage medium separates into a first liquid layer containing the main agent and a second liquid layer containing the nucleating agent in an environment with a temperature exceeding the phase change temperature.
    Type: Application
    Filed: November 22, 2017
    Publication date: December 5, 2019
    Inventors: SATORU MOTONAMI, YUKA UTSUMI, HWISIM HWANG, DAISUKE SHINOZAKI, MASAKAZU KAMURA
  • Publication number: 20190313818
    Abstract: There are provided a cooler container, cold tray, and red wine server in which it is possible to adjust the temperature of an outer surface on the buffer layer side of the container to a temperature that differs from the melting point of a freezing material. The cooler container adjusts temperature of an object to be cooled that includes a beverage or food product, the cooler container having at least a region with a hollow structure, the cooler container including: a thermal storage layer in the region, the thermal storage layer containing a freezing material that changes phase at a specific temperature; and at least one buffer layer in the region, the at least one buffer layer being separated from the thermal storage layer in the region and containing an antifreeze material that is a fluid at a phase transition temperature of the freezing material.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 17, 2019
    Inventors: HISANORI BESSHO, YUKA UTSUMI, MASAKAZU KAMURA, DAISUKE SHINOZAKI
  • Publication number: 20190142629
    Abstract: A cooling pack is provided that can both maintain the human body at a suitable, low temperature and ensure a sufficient usage time. The present invention, in one aspect thereof, is directed to a cooling pack that cools a human body. The cold storage layer includes: a freezing medium having a phase transition temperature specified in a range of temperature suitable to maintain the human body at low temperature; and a cold-storage-layer-packaging member containing the freezing medium therein. The buffer layer includes: an antifreeze medium flexible at the phase transition temperature of the freezing medium; and a buffer-layer-packaging member made of a flexible material and containing the antifreeze medium therein. The buffer layer has a prescribed thermal conductivity, thermal diffusivity, thermal effusivity, and heat transmission coefficient. The buffer layer is brought into contact with human skin to transfer heat between the human body and the cold storage layer.
    Type: Application
    Filed: February 28, 2017
    Publication date: May 16, 2019
    Inventors: DAISUKE SHINOZAKI, YUKA UTSUMI, HISANORI BESSHO, HWISIM HWANG, SATORU MOTONAMI
  • Patent number: 10214672
    Abstract: 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.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 26, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Ide, Yuka Utsumi, Daiji Sawada, Hisanori Bessho, Takashi Yamashita
  • Publication number: 20190048242
    Abstract: A flame-retardant thermal storage medium is provided that has an effective temperature range lower than the effective temperature range of congruent-melting-point-concentration TBAB without reducing the latent heat of the congruent-melting-point-concentration TBAB. The thermal storage medium changes phase at a prescribed temperature and contains: water; TBAB at such a concentration with respect to the water as to give a congruent melting point of a semi-clathrate hydrate; and KCl dissolved in the water. The thermal storage medium contains at least 0.
    Type: Application
    Filed: January 31, 2017
    Publication date: February 14, 2019
    Inventors: HWISIM HWANG, DAIJI SAWADA, YUKA UTSUMI, HISANORI BESSHO, SATORU MOTONAMI, TETSUYA IDE
  • Patent number: 10179686
    Abstract: 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.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 15, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisanori Bessho, Tomoko Kase, Takashi Yamashita, Tetsuya Ide, Tomohisa Miyatani, Daiji Sawada, Yuka Utsumi
  • Publication number: 20190002748
    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.
    Type: Application
    Filed: December 19, 2016
    Publication date: January 3, 2019
    Inventors: SATORU MOTONAMI, YUKA UTSUMI, MASAO URAYAMA, HISANORI BESSHO, DAIJI SAWADA, TAKASHI YAMASHITA
  • Patent number: 10101095
    Abstract: 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 capsule 10 includes a heat storage material 20 reversibly changing into a hydrate of a salt and an aqueous solution of the salt and also includes a capsule coating 22 encapsulating the heat storage material 20. The capsule coating 22 includes an inner sub-coating 24 and an outer sub-coating 26. The inner sub-coating 24 is a hydrogenated oil layer. The outer sub-coating 26 is made of a hydrophilic gel. The heat storage capsule 10 has a W/O/W three-layer structure.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: October 16, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuya Ide, Yuka Utsumi, Hisanori Bessho, Tomohisa Miyatani, Tomoko Kase, Daiji Sawada, Takashi Yamashita
  • Publication number: 20180266746
    Abstract: Provided are a heat insulating container capable of maintaining a temperature of an object longer by dispersing the effect of temperature rises resulting from heat radiation, and a method for producing the same. A heat insulating container that maintains the temperature of a specific object requiring temperature control includes a first thermal storage medium, disposed to surround a center portion of the heat insulating container in which the object is placed, and a second thermal storage medium, disposed to surround the outer side of the first thermal storage medium. The first and second thermal storage media are both liquids at an intended target temperature of the object V1. The first and second thermal storage media have freezing points adjacent to and higher than a lower limit of an allowable temperature range of the object including the intended target temperature.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 20, 2018
    Inventors: MASAO URAYAMA, HWISIM HWANG, YUKA UTSUMI, HISANORI BESSHO, DAIJI SAWADA, YUICHI KAMIMURA
  • Publication number: 20180162627
    Abstract: 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 pack 1 according 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.
    Type: Application
    Filed: May 26, 2016
    Publication date: June 14, 2018
    Inventors: HISANORI BESSHO, DAIJI SAWADA, YUKA UTSUMI, TAKASHI YAMASHITA, HWISIM HWANG, MASAO URAYAMA, YUICHI KAMIMURA
  • Patent number: 9964351
    Abstract: The present invention aims to provide cooling equipment which can reduce power consumption. Cooling equipment 1 includes a storage chamber 30 that stores storage goods; latent heat storage materials 101 to 106 disposed inside the storage chamber 30; a compressor 40 that configures a refrigerating cycle for cooling the inside of the storage chamber 30; a temperature sensor 60 that detects a temperature of the latent heat storage materials 101 to 106; and a control unit 100 that controls the compressor 40, based on a state of the latent heat storage materials 101 to 106.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 8, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takashi Yamashita, Tetsuya Ide, Yasuyuki Umenaka, Yuka Utsumi, Kazuhiro Deguchi
  • Publication number: 20180087830
    Abstract: The present invention aims to provide cooling equipment which can reduce power consumption. Cooling equipment 1 includes a storage chamber 30 that stores storage goods; latent heat storage materials 101 to 106 disposed inside the storage chamber 30; a compressor 40 that configures a refrigerating cycle for cooling the inside of the storage chamber 30; a temperature sensor 60 that detects a temperature of the latent heat storage materials 101 to 106; and a control unit 100 that controls the compressor 40, based on a state of the latent heat storage materials 101 to 106.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 29, 2018
    Inventors: Takashi YAMASHITA, Tetsuya IDE, Yasuyuki UMENAKA, Yuka UTSUMI, Kazuhiro DEGUCHI