Patents by Inventor Hwisim HWANG

Hwisim HWANG 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).

  • Patent number: 11884868
    Abstract: 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.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: January 30, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakazu Kamura, Hwisim Hwang, Kyohei Sezukuri, Yuka Utsumi
  • Publication number: 20230131756
    Abstract: The present disclosure acquires information on a cold insulator. The cold insulator includes: at least one cold storage material; a packaging unit configured to package the at least one cold storage material; one or more first temperature sensors disposed on the packaging unit; and a transmission unit disposed on the packaging unit to transmit a result of measurement performed by the one or more first temperature sensors to an external device.
    Type: Application
    Filed: December 14, 2020
    Publication date: April 27, 2023
    Inventors: KEI KASAHARA, SATOSHI SHIMIZU, MASATO SASAKI, MASAYUKI NAKANO, TOMOHISA YOSHIE, HWISIM HWANG, MASAKAZU KAMURA, YUKA UTSUMI
  • Publication number: 20210270514
    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.
    Type: Application
    Filed: May 27, 2019
    Publication date: September 2, 2021
    Inventors: MASAKAZU KAMURA, KYOHEI SEZUKURI, HWISIM HWANG, SATORU MOTONAMI, YUKA UTSUMI
  • Publication number: 20210107720
    Abstract: A heat or cold storage pack is provided that contains a latent thermal storage material that can be restored during transport to prolong a heat or cold storage function thereof and that exhibits a reduced temperature change in a phase transition thereof to reliably maintain the temperature of an object to be kept warm or cold in a temperature range in which the object should be kept. The heat storage pack is for use in a logistic packaging container to adjust the temperature of an object to be kept warm and includes: a latent thermal storage material having a difference of less than 1° C.
    Type: Application
    Filed: March 26, 2018
    Publication date: April 15, 2021
    Inventors: MASAKAZU KAMURA, HWISIM HWANG, KYOHEI SEZUKURI, YUKA UTSUMI
  • Publication number: 20210062058
    Abstract: 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.
    Type: Application
    Filed: February 1, 2019
    Publication date: March 4, 2021
    Inventors: MASAKAZU KAMURA, HWISIM HWANG, KYOHEI SEZUKURI, YUKA UTSUMI
  • Patent number: 10919683
    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: Grant
    Filed: May 26, 2016
    Date of Patent: February 16, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hisanori Bessho, Daiji Sawada, Yuka Utsumi, Takashi Yamashita, Hwisim Hwang, Masao Urayama, Yuichi Kamimura
  • 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
  • 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: 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: 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
  • 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
  • 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
  • Publication number: 20170153054
    Abstract: The present invention is aimed at providing a cold insulation member capable of cooling a cold insulation target to a predetermined temperature zone. A cold insulation member 10 includes a rapid-cooling layer 1, which includes a rapid-cooling heat-storage material 1a for rapidly cooling the cold insulation target to the predetermined temperature zone in a predetermined time and a rapid-cooling heat-storage material accommodation portion 1b for accommodating the rapid-cooling heat-storage material 1a, and a temperature maintenance layer 2 which includes a temperature maintenance heat-storage material 2a for maintaining the cold insulation target in the predetermined temperature zone for the predetermined time or longer and a temperature maintenance heat-storage material accommodation portion 2b for accommodating the temperature maintenance heat-storage material 2a and which is arranged beyond the rapid-cooling layer 1.
    Type: Application
    Filed: June 24, 2015
    Publication date: June 1, 2017
    Inventors: Daiji SAWADA, Yuka UTSUMI, Yuichi KAMIMURA, Hisanori BESSHO, Hwisim HWANG, Takashi YAMASHITA