Patents by Inventor Tak Kang

Tak Kang 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: 7668829
    Abstract: A method for storing a music file in a mobile communication terminal using a number key of the mobile terminal includes: designating a specific music file from at least one music file displayed in a music file playback mode; inputting a number of a music file list in which the designated music file is to be stored, using a corresponding number key; and storing the designated music file in the music file list having the input number. The method simplifies the storage of a music file in a mobile terminal and also facilitates changing the location of a music file stored in a music file list.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: February 23, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se Youp Chu, Chang Tak Kang, Yun Seong Lee
  • Patent number: 7600695
    Abstract: A cogeneration system and a method for controlling the cogeneration system in which waste heat of an engine is mainly used to prevent an outdoor heat exchanger from being frosted, or is used not only to prevent the outdoor heat exchanger from being frosted, but also to enhance the heating performance of an indoor heat exchanger, in accordance with ambient temperature conditions, so that the cogeneration system can positively cope with ambient temperature conditions, and can exhibit a high energy efficiency.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: October 13, 2009
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 7587894
    Abstract: An exhaust structure for an engine is disclosed. The exhaust structure includes an exhaust line, through which the exhaust gas discharged from the engine passes. The exhaust line has a double pipe structure capable of preventing the condensed water formed in the exhaust line from entering the engine, so that it is possible to prevent engine failure, and thus, to achieve an enhancement in the durability and reliability of the engine.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: September 15, 2009
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 7509817
    Abstract: Disclosed herein is a method of controlling a linear expansion valve of a cooling cycle apparatus. The method comprises a first step of calculating a target opening level value according to suction overheat level of compressors to control a linear expansion valve based on the calculated target opening level value, and a second step of calculating a new target opening level value according to the suction overheat level of the compressors and discharge temperature of the compressors to control the linear expansion valve based on the calculated new target opening level value. Consequently, the discharge temperature of the compressors is prevented from being excessively increased, and therefore, the compressors are prevented from being overheated and damaged, and reliability of the cooling cycle apparatus is improved.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: March 31, 2009
    Assignee: LG Electronics Inc.
    Inventors: Yoon Jei Hwang, Cheol Min Kim, Chang Min Choi, Seung Tak Kang, Hyung Soo Lim
  • Patent number: 7481071
    Abstract: A cooling/heating apparatus using a cogeneration system is disclosed.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: January 27, 2009
    Assignee: LG Electronics Inc.
    Inventors: Chang Min Choi, Seung Tak Kang, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 7466034
    Abstract: A cogeneration system is disclosed, wherein a generator which generates electricity, a drive source which operates to drive the generator, and generates waste heat during the operation of the drive source, a waste heat recoverer which recovers the waste heat of the drive source, and a radiator which radiates the waste heat recovered by the waste heat recoverer are arranged in a single chassis. The cogeneration system has a compact and simple arrangement, and achieves simple control operations, and an enhancement in operability.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: December 16, 2008
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Publication number: 20080066610
    Abstract: A method for storing a music file in a mobile communication terminal using a number key of the mobile terminal includes: designating a specific music file from at least one music file displayed in a music file playback mode; inputting a number of a music file list in which the designated music file is to be stored, using a corresponding number key; and storing the designated music file in the music file list having the input number. The method simplifies the storage of a music file in a mobile terminal and also facilitates changing the location of a music file stored in a music file list.
    Type: Application
    Filed: June 1, 2007
    Publication date: March 20, 2008
    Inventors: Se Youp Chu, Chang Tak Kang, Yun Seong Lee
  • Patent number: 7305840
    Abstract: An electricity generating and air conditioning system with a dehumidifier. The system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a dehumidifying agent body to dehumidify indoor air, a regeneration heater to regenerate the dehumidifying agent body, and a waste heat recovering means to supply waste heat of the engine to the regeneration heater, and thus, to allow the regeneration heater to use the supplied waste heat as a heat source for the regeneration of the dehumidifying agent body, so that the system exhibits a maximal efficiency.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: December 11, 2007
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 7243504
    Abstract: A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit using a heat pump type refrigerant cycle, in which a refrigerant is circulated through at least one compressor, a four-way valve, a first outdoor heat exchanger, a first expansion device, and an indoor heat exchanger, in this order, during a cooling operation of the cogeneration system, and a waste heat consuming heating unit using a refrigerant cycle, in which the refrigerant is circulated through the compressor, the four-way valve, the indoor heat exchanger, a second expansion device, and a second outdoor heat exchanger to be heated by waste heat of the engine, in this order, during a heating operation of the cogeneration system. In accordance with the cogeneration system, it is possible to maximize utilization of engine waste heat during the heating operation and to achieve an enhancement in heating performance.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: July 17, 2007
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 7240503
    Abstract: An electricity generating and air conditioning system with a dehumidifier. The system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a heat pump type air conditioner, through which a refrigerant is circulated, the heat pump type air conditioner comprising a compressor, a directional valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, an indoor dehumidifying agent body to dehumidify indoor air, an indoor regeneration heater to regenerate the indoor dehumidifying agent body, and a waste heat recovering means to supply waste heat of the engine to the indoor regeneration heater, and thus, to allow the indoor regeneration heater to use the supplied waste heat as a heat source for the regeneration of the indoor dehumidifying agent body, or to supply the waste heat of the engine to the refrigerant of the heat pump type air conditioner, so that the system exhibits maximal efficiency.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: July 10, 2007
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 7170191
    Abstract: A cogeneration system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a heat pump type air conditioner, which uses the electricity generated from the generator, and includes a compressor, a directional valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, a fluid-heating heat exchanger to heat a fluid, and a waste heat recovering means to supply waste heat of the engine to the heat pump type air conditioner or to the fluid-heating heat exchanger, so that the system exhibits a high energy efficiency.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: January 30, 2007
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 7145258
    Abstract: An electricity generating and air conditioning system including an engine, a generator connected to an output shaft of the engine to generate electricity, an air conditioner, which uses the electricity generated from the generator and includes a compressor, an indoor heat exchanger, an outdoor heat exchanger, and an expansion device, and an exhaust gas waste heat recovering device to recover heat of exhaust gas discharged from the engine and to transfer the recovered heat to a refrigerant passing through a discharge line of the compressor. The electricity generating and air conditioning system has an advantage in that an enhancement in heating performance is achieved.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: December 5, 2006
    Assignee: LG Electronics Inc.
    Inventors: Seung Tak Kang, Chang Min Choi, Won Jae Choi, Hyung Soo Lim, Yoon Jei Hwang
  • Patent number: 6428672
    Abstract: Disclosed is a technique for manufacturing a Ni—Fe alloy thin foil using a single-step electrodeposition-based plating process without requiring processes such as melting, casting, forging, and rolling. A manufacturing apparatus is provided which includes an electrolyzer adapted to receive an electrolyte containing, as a major component thereof, a solution of nickel and iron compounds, a cathode partially dipped in the electrolyte and arranged in such a fashion that it is rotatable, an anode completely dipped in the electrolyte and arranged in such a fashion that it faces the cathode while being spaced apart from the cathode by a desired distance, and a current supply device adapted to generate a flow of current between the cathode and the anode, whereby a Ni—Fe alloy thin film is electrodeposited to a desired thickness over a surface of the cathode facing the anode, and then peeled off from the surface of the cathode, so that a continuous Ni—Fe alloy thin foil is manufactured.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: August 6, 2002
    Assignees: Union Steel Manufacturing Co., Ltd., Korea Institute of Industrial Technology
    Inventors: Janghyun Choi, Taihong Yim, Tak Kang, Heungyeol Lee, Joongbae Lee, Sanghyun Jeon, Yongbum Park