Patents by Inventor Joon-Hwan Oh
Joon-Hwan Oh 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).
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Publication number: 20220209573Abstract: Auxiliary power management devices are disclosed. In some implementations, an auxiliary power management device may be coupled to an auxiliary power source that serves as a backup power supply for a primary power source to provide power to an electronic device and comprising a plurality of switches to control currents of a plurality of energy storage components, a plurality of channels coupled to the plurality of switches, respectively, a plurality of switch controllers to control the plurality of switches coupled to the plurality of channels and monitor a current or voltage of the plurality of channels, and a management logic to control the switches coupled to the plurality of channels upon detection, by the plurality of switch controllers, of a first current or voltage distribution across the channels that exceeds a predetermined threshold regarding the current or voltage distribution.Type: ApplicationFiled: June 15, 2021Publication date: June 30, 2022Inventors: Eun Kyu CHOI, Seon Cheol KIM, Sung Ryun MOON, In Bo SHIM, Joon Hwan OH
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Patent number: 8567210Abstract: Provided is a refrigerator configured to improve the structure of an ice-making chamber provided to a refrigerator door, thereby efficiently supplying cool air into the ice-making chamber. The refrigerator includes a main body including a storage chamber, a refrigerator door rotatably coupled to the main body, an ice-making device provided to the refrigerator door and configured to make ice, an ice-making unit provided to the ice-making device and including a cool air introduction part, a freezing core vertically arranged in the ice-making unit and cooled by cool air, and an ice tray configured to receive at least one portion of the freezing core therein, wherein the cool air introduction part is provided on an upper side of the freezing core. Cool air is efficiently introduced into the ice-making chamber, thereby increasing the amount of ice made.Type: GrantFiled: October 1, 2008Date of Patent: October 29, 2013Assignee: LG Electronics Inc.Inventors: Hong-Hee Park, Tae-Hee Lee, Joon-Hwan Oh, Young-Jin Kim, Ho-Youn Lee
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Patent number: 8534088Abstract: A method of controlling an ice maker is provided that minimizes generation of excess water and reduces energy consumption. The method allows for uniform heat to be generated and distributed throughout the ice tray during an ice separation process. Consequently, the ice separating process may be consistently performed irrespective of the shape of the ice tray and its surroundings, thereby minimizing generation of excess water, and reducing energy consumption.Type: GrantFiled: July 15, 2008Date of Patent: September 17, 2013Assignee: LG Electronics Inc.Inventors: Tae Hee Lee, Hong Hee Park, Joon Hwan Oh, Young Jin Kim, Kwang Ha Suh
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Patent number: 8516846Abstract: An ice maker and a refrigerator having the same include an ice making container which is maintained at a temperature higher than a freezing point of water. Ace core rods having the temperature lower than the freezing point are inserted into the ice making container to cause water in the container to freeze. Accordingly, water at the periphery of the ice making container remains liquid which the water surrounding the ice core rods freezes. As a result, air bubbles generated when the ice is made can be discharged from the liquid portions of the water at the outer edges of the container. This results in ice without trapped air bubbles, which allows excellent transparent ice pieces to be formed. In some embodiments, the exterior surfaces of the ice making container are maintained at a temperature lower than the freezing point of water, and thawing rods maintained at the temperature higher than the freezing point of water are inserted into the center portions of the ice making container.Type: GrantFiled: April 4, 2008Date of Patent: August 27, 2013Assignee: LG Electronics Inc.Inventors: Tae-Hee Lee, Hong-Hee Park, Joon-Hwan Oh, Young-Jin Kim, Kwang-Ha Suh, Jin-Sung Park
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Patent number: 8438868Abstract: A refrigerator includes an ice maker to make pieces of ice and an ice storage bin to receive the pieces of ice made by the ice maker. A plurality of blades is rotatably disposed at a bottom portion of the ice storage bin and an ice separating device to separate clumped pieces of ice discharged from the ice maker is disposed in the ice storage bin between the ice maker and the plurality of blades, where the ice separating device is disposed on at least a rear wall, a front wall, or a side wall of the ice storage bin.Type: GrantFiled: September 8, 2010Date of Patent: May 14, 2013Assignee: LG Electronics Inc.Inventors: Dong Hoon Lee, Kyung Han Jeong, Wook Yong Lee, Joon Hwan Oh, Il Wook Joung
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Patent number: 8434321Abstract: An ice making assembly for a refrigerator and a method for controlling the ice making assembly are provided. The ice making assembly and the method of controlling the ice making assembly provides a constant amount of water supply for each ice making cycle regardless of environmental conditions such as the varying water supply pressure of different installation locations. Furthermore, overflowing can be prevented during water supply with the use of a capacitance water level sensor.Type: GrantFiled: February 24, 2009Date of Patent: May 7, 2013Assignee: LG Electronics Inc.Inventors: Young Jin Kim, Tae Hee Lee, Hong Hee Park, Ho Youn Lee, Joon Hwan Oh
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Patent number: 8402783Abstract: An ice-making device for a refrigerator, which is designed to separate ice through a simple process is provided. The ice-making device for a refrigerator includes an ice tray defining an ice-making space, an ice core member that is partly received in the ice-making space to make ice at an end thereof, a driving unit moving and rotating at least one of the ice tray and the ice core member, and a power transmission unit for transferring power from the driving unit to the ice core member. The ice on the ice core member starts being separated in a state where the ice is spaced apart from an outer surface of the ice tray.Type: GrantFiled: February 25, 2009Date of Patent: March 26, 2013Assignee: LG Electronics Inc.Inventors: Young Jin Kim, Tae Hee Lee, Hong Hee Park, Ho Youn Lee, Joon Hwan Oh
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Patent number: 8405002Abstract: An icemaker and a refrigerator having an icemaker are discussed. The icemaker has pulse-electrothermal ice release and includes an ice-making tray having several ice forming portions in which water is stored and ice is formed; and a housing surrounding the ice-making tray provided with at least one cold air inlet and/or ice ejection port through which cold air is supplied and ice released along a bent channel. The cold air inlet and/or ice ejection ports are baffled to prevent contact with a user's fingers and thereby reduce the possibility of electric shock.Type: GrantFiled: December 19, 2008Date of Patent: March 26, 2013Assignee: The Trustees of Dartmouth CollegeInventors: Victor F. Petrenko, Gabriel Martinez, Tae Hee Lee, Hong Hee Park, Joon Hwan Oh, Kwang Ha Suh
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Patent number: 8402782Abstract: An ice-making device designed to make and separate ice from an ice tray through a simple process is provided. The ice-making device includes an ice tray defining an ice-making space, a freezing core that is partly received in the ice-making space to make ice at an end thereof, a driving unit moving and rotating the freezing core, and a power transmission unit for transferring power from the driving unit to the freezing core. The power transmission unit including a cam unit rotatably connected to the driving unit and a moving member that moves in vertical and rotational direction by a driving force of a motor transferred by the cam unit.Type: GrantFiled: February 25, 2009Date of Patent: March 26, 2013Assignee: LG Electronics Inc.Inventors: Young Jin Kim, Tae Hee Lee, Hong Hee Park, Ho Youn Lee, Joon Hwan Oh
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Patent number: 8371133Abstract: Ice maker including an ice making container (100) having a plurality of cavities (120) for forming ice, a heater body (210) on one side of the ice making container for selective generation of heat, and heating bars (220) each extended from the heater body to the cavity by a predetermined length with a profile in conformity with a bottom surface profile of the cavity (120) with a gap to the bottom surface such that the heating bar (220) is submerged under water in the cavity for causing a temperature gradient during ice making.Type: GrantFiled: November 15, 2007Date of Patent: February 12, 2013Assignee: LG Electronics Inc.Inventors: Young Jin Kim, Hong Hee Park, Kwang Ha Suh, Tae Hee Lee, Joon Hwan Oh
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Patent number: 8322148Abstract: Ice making assembly for a refrigerator and a method for controlling the ice making assembly. The ice making assembly and method capable of more effectively providing transparent ice. The ice making assembly and method also capable of preventing water overflow.Type: GrantFiled: February 20, 2009Date of Patent: December 4, 2012Assignee: LG Electronics Inc.Inventors: Young Jin Kim, Tae Hee Lee, Hong Hee Park, Ho Youn Lee, Joon Hwan Oh
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Patent number: 8322158Abstract: A refrigerator includes an ice storage bin, an opening provided in the ice storage bin through which ice is discharged, and a plurality of blades provided in the ice storage bin, such that the plurality of blades can rotate in a forward direction or in a reverse direction, to selectively discharge ice through the opening as whole ice or crushed ice, where gravity and the plurality of blades are the only forces exerted on the ice collected in the ice storage bin.Type: GrantFiled: September 24, 2009Date of Patent: December 4, 2012Assignee: LG Electronics Inc.Inventors: Dong Hoon Lee, Kyung Han Jeong, Wook Yong Lee, Joon Hwan Oh
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Patent number: 8109114Abstract: An ice maker and a controlling method thereof are provided. The system and method may prevent the overflow or splashing of water or thin ice out of an ice tray during the supply of water or when the ice maker is shaken by an external force. The ice maker may include an ice tray, and an ice tray cover that covers an open portion of the ice tray. The cover may include an opening through which water may be supplied to the ice tray, and through which ice may be discharged from the ice tray. The cover may move together with the tray, or may move separately from the tray, to facilitate these supply and discharge processes.Type: GrantFiled: June 19, 2008Date of Patent: February 7, 2012Assignee: LG Electronics Inc.Inventors: Tae Hee Lee, Hong Hee Park, Joon Hwan Oh, Young Jin Kim, Kwang Ha Suh
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Patent number: 7992951Abstract: A door opening and closing device for a refrigerator includes plural doors for opening and closing a refrigerator main body; a hinge unit for connecting the corresponding door to the refrigerant main body so that the door can perform rotational motion or translational motion against the refrigerant main body; first interference units provided between the corresponding door and the refrigerant main body, and contacting from a state in which the door is closed to a state in which the door is opened to a designated angle for separating the doors; and second interference units provided between the corresponding door and the refrigerant main body, and contacting from the state in which the door is opened above the designated angle for separating the doors. The door opening and closing device reduces noise and impact generated by the opening and closing of the doors, allowing a user to open and close the doors more softly and smoothly.Type: GrantFiled: February 13, 2006Date of Patent: August 9, 2011Assignee: LG Electronics Inc.Inventors: Seong Jae Kim, Jang Ho Shim, Ki Chul Woo, Sang Yeul Lee, Joon Hwan Oh, Seung Yup Kim, Jong Ho Hong
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Publication number: 20110185760Abstract: Disclosed is an ice maker for a refrigerator. The ice maker is further provided with an ice making evaporator in addition to an evaporator for cooling a refrigerating chamber of a freezing chamber, and the ice making evaporator is sunk in water to generate ice, thereby quickly creating transparent ice. The ice maker can also be disposed in the refrigerating chamber or a refrigerating chamber door, thus to prevent ice from being formed with air bubble remaining in water, resulting in enhancing transparency of ice. In addition, even if the ice maker is disposed in the refrigerating chamber door, cold air is not needed to be induced from the freezing chamber, which allows independent operations of the freezing chamber and the ice maker, thereby increasing energy efficiency.Type: ApplicationFiled: October 10, 2008Publication date: August 4, 2011Applicant: LG Electronics Inc.Inventors: Kwang-Ha Suh, Tae-Hee Lee, Hong-Hee Park, Joon-Hwan Oh
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Publication number: 20110067429Abstract: A refrigerator includes an ice maker to make pieces of ice and an ice storage bin to receive the pieces of ice made by the ice maker. A plurality of blades is rotatably disposed at a bottom portion of the ice storage bin and an ice separating device to separate clumped pieces of ice discharged from the ice maker is disposed in the ice storage bin between the ice maker and the plurality of blades, where the ice separating device is disposed on at least a rear wall, a front wall, or a side wall of the ice storage bin.Type: ApplicationFiled: September 8, 2010Publication date: March 24, 2011Applicant: LG ELECTRONICS INC.Inventors: Dong Hoon Lee, Kyung Han Jeong, Wook Yong Lee, Joon Hwan Oh, Il Wook Joung
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Patent number: 7905466Abstract: An ice tray is provided that prevents the overflow or splashing of water or thin ice out of the ice tray as water is supplied to the ice tray, or when the ice tray is shaken by an external force. The ice tray may include a plurality of receiving portions that receive water for freezing into ice pieces. An overflow preventing portion may extend upward from upper edges of the receiving portions to form a barrier to water flowing out of the ice tray. Alternatively, the receiving parts may be positioned within a corresponding plurality of location parts having water proofing walls extending upward therefrom to inhibit the unintentional flow of water or thin ice out of the receiving portions of the ice tray.Type: GrantFiled: June 19, 2008Date of Patent: March 15, 2011Assignee: LG Electronics Inc.Inventors: Tae Hee Lee, Hong Hee Park, Joon Hwan Oh, Young Jin Kim, Kwang Ha Suh
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Publication number: 20110048052Abstract: A refrigerator includes an ice storage bin, an opening provided in the ice storage bin through which ice is discharged, and a plurality of blades provided in the ice storage bin, such that the plurality of blades can rotate in a forward direction or in a reverse direction, to selectively discharge ice through the opening as whole ice or crushed ice, where gravity and the plurality of blades are the only forces exerted on the ice collected in the ice storage bin.Type: ApplicationFiled: September 24, 2009Publication date: March 3, 2011Applicant: LG Electronics Inc.Inventors: Dong Hoon Lee, Kyung Han Jeong, Wook Yong Lee, Joon Hwan Oh
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Publication number: 20100319387Abstract: Provided is a refrigerator configured to improve the structure of an ice-making chamber provided to a refrigerator door, thereby efficiently supplying cool air into the ice-making chamber. The refrigerator includes a main body including a storage chamber, a refrigerator door rotatably coupled to the main body, an ice-making device provided to the refrigerator door and configured to make ice, an ice-making unit provided to the ice-making device and including a cool air introduction part, a freezing core vertically arranged in the ice-making unit and cooled by cool air, and an ice tray configured to receive at least one portion of the freezing core therein, wherein the cool air introduction part is provided on an upper side of the freezing core. Cool air is efficiently introduced into the ice-making chamber, thereby increasing the amount of ice made.Type: ApplicationFiled: October 1, 2008Publication date: December 23, 2010Applicant: LG ELECTRONICS INC.Inventors: Hong-Hee Park, Tae-Hee Lee, Joon-Hwan Oh, Young-Jin Kim, Ho-Youn Lee
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Publication number: 20100018226Abstract: Ice maker including an ice making container (100) having a plurality of cavities (120) for forming ice, a heater body (210) on one side of the ice making container for selective generation of heat, and heating bars (220) each extended from the heater body to the cavity by a predetermined length with a profile in conformity with a bottom surface profile of the cavity (120) with a gap to the bottom surface such that the heating bar (220) is submerged under water in the cavity for causing a temperature gradient during ice making.Type: ApplicationFiled: November 15, 2007Publication date: January 28, 2010Inventors: Young Jin Kim, Hong Hee Park, Kwang Ha Suh, Tae Hee Lee, Joon Hwan Oh