Patents by Inventor Young Hwan Ko
Young Hwan Ko 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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Patent number: 7726141Abstract: A refrigerator is provided which can individually cool a freezing chamber and a refrigerating chamber by dividing a heat exchange region of an evaporator into a freezing chamber side region and a refrigerating chamber side region, forming individual circulation passages for supplying cool air from each region to the freezing chamber and the refrigerating chamber, and forming a freezing chamber fan and a refrigerating chamber fan on each circulation passage. Further, a method for controlling operation of the same is provided which can efficiently perform a cooling operation and reduce power consumption by effectively controlling the operations of each component.Type: GrantFiled: June 21, 2004Date of Patent: June 1, 2010Assignee: LG Electronics Inc.Inventors: Jae-Seng Sim, Young-Hwan Ko, Jongmin Shin, Bong-Jun Choi, Jun-Hyeon Hwang, Young Jeong, Samchul Ha, Yunho Hwang
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Publication number: 20100131115Abstract: The present invention relates to a controlling method of an air conditioner. The controlling method of an air conditioner having a phase separator, an expansion valve, a control valve, an evaporator, a multistage compressor, and a condenser, includes the steps of sensing an order to operate the air conditioner, stabilizing the air conditioner, setting a degree of superheat of refrigerant in the air conditioner, and setting an optimum intermediate pressure of the refrigerant of the air conditioner.Type: ApplicationFiled: October 23, 2007Publication date: May 27, 2010Inventors: Bum Suk Kim, Sang Kyoung Park, Young Hwan Ko, Hyuk Soo Lee
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Patent number: 7584627Abstract: Refrigerator including a freezing chamber (1), a refrigerating chamber (2) at a side of the freezing chamber, a barrier (303) between the freezing chamber and the refrigerating chamber, the barrier having a freezing chamber cold air passage (A) formed therein, a partition plate (7) for compartmentalizing a freezing chamber cold air passage in rear of the freezing chamber where an evaporator (104) is positioned, the evaporator provided in a “” form along the freezing chamber cold air passage (A) and the refrigerating chamber cold air passage (B), a partition wall (9) between the freezing chamber cold air passage and the refrigerating chamber cold air passage, and a fan (305) mounted over the freezing chamber cold air passage and the refrigerating chamber cold air passage for discharging cold air flowing through respective cold air passage (10) to the freezing chamber and the refrigerating chamber respectively, thereby improving a cooling rate of the refrigerating chamber and providing more efficient refrigeratType: GrantFiled: December 16, 2003Date of Patent: September 8, 2009Assignee: LG Electronics Inc.Inventors: Jae Sung Sim, Jong Min Shin, Young Hwan Ko
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Publication number: 20090218077Abstract: The present invention discloses an air conditioning system comprises a phase separator separating a gaseous refrigerant and a liquid refrigerant from a flowing refrigerant, an evaporator evaporating the liquid refrigerant separated by the phase separator, and at least one compressor including a first compressing part receiving the refrigerant via the evaporator and a second compressing part receiving both of the gaseous refrigerant separated by the phase separator and the refrigerant via the first compressing part, wherein a volume of a first cylinder of the first compressing part is different from a volume of a second cylinder of the second compressing part.Type: ApplicationFiled: January 3, 2007Publication date: September 3, 2009Applicant: LG ELECTRONICS INC.Inventors: Young Hwan Ko, Hyuk Soo Lee, Bum Suk Kim, Sang Kyoung Park, Byung Soon Kim
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Publication number: 20090188265Abstract: An air conditioning system can improve the cooling/heating performance of the system because the injection of refrigerant into the compressor is achieved. The air conditioning system can further improve the cooling/heating performance in a low temperature region by injecting refrigerant as a two-phase refrigerant or a superheated vapor state into the compressor. The air conditioning system can prevent damage of the compressor and further improve reliability by controlling such that the ratio of a liquid refrigerant in the refrigerant injected into the compressor may be less than a set value.Type: ApplicationFiled: June 19, 2008Publication date: July 30, 2009Applicant: LG ELECTRONICS INC.Inventors: Young Hwan Ko, Bum Suk Kim, Man Ho Chun
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Publication number: 20090165482Abstract: In an air conditioning system, a first expansion device and a second expansion device playing a different role from each other are controlled in a different control method suitable for each role, thereby improving the performance and stability of the system. Furthermore, the control method for the first expansion device is differentiated according to the operation state of the air conditioning system, thereby improving the stability of the system. Furthermore, the intermediate pressure can be adjusted more rapidly and precisely according to the state of the air conditioning system by differentiating the control method for the first expansion device for adjusting the intermediate pressure depending on the degree of superheat of the refrigerant, thereby improving the stability and performance of the system.Type: ApplicationFiled: May 30, 2008Publication date: July 2, 2009Applicant: LG Electronics Inc.Inventors: Young Hwan Ko, Bum Suk Kim, Man Ho Chun
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Publication number: 20090165481Abstract: It is possible to prevent that a liquid refrigerant is included in a refrigerant injected into a compressor. Accordingly, the risk of liquid compression of the compressor is greatly reduced, thereby decreasing the possibility of damage to the compressor and improving reliability and performance.Type: ApplicationFiled: June 17, 2008Publication date: July 2, 2009Applicant: LG Electronics Inc.Inventors: Young Hwan Ko, Bum Suk Kim, Man Ho Chun, Sang Kyoung Park
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Publication number: 20080229777Abstract: The present invention discloses a refrigerator which can individually cool a freezing chamber and a refrigerating chamber by dividing a heat exchange region of an evaporator into a freezing chamber side region and a refrigerating chamber side region, forming individual circulation passages for supplying cool air from each region to the freezing chamber and the refrigerating chamber, and forming a freezing chamber fan and a refrigerating chamber fan on each circulation passage, and method for controlling operation of the same which can efficiently perform a cooling operation and reduce power consumption by effectively controlling the operations of each component.Type: ApplicationFiled: June 21, 2004Publication date: September 25, 2008Inventors: Jae-Seng Sim, Young-Hwan Ko, Jongmin Shin, Bong-Jun Choi, Jun-Hyeon Hwang, Young Jeong, Samchul Ha, Yunho Hwang
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Patent number: 7413858Abstract: Disclosed is a method for identifying Streptomyces species using groEL2 gene that can compensate for drawbacks of conventional methods of morphologic classification and 16S rDNA identification being time-consuming, unfaithful, and expensive, thus enabling to efficiently identify Streptomyces species.Type: GrantFiled: April 15, 2004Date of Patent: August 19, 2008Assignee: Korea Research Institute of Bioscience and BiotechnologyInventors: Bum-Joon Kim, Chang-Jin Kim, Young Hwan Ko, Jeong-Sam Koh, Dong-Jin Park, Hyang Burm Lee, Hong Kim, Sun-hyun Kim
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Publication number: 20080131274Abstract: Fan apparatus including a fan, a shaft coupled to the fan for transmission of driving force from a motor to the fan, a rotor bushing of an insulating material joined to a rear end portion of the shaft, a rotor joined to the rotor bushing for transmission of the driving force to the shaft through the rotor bushing, and a stator mounted so as to be positioned on an inside of the rotor to form a BLDC motor together with the rotor, thereby reducing noise and enhancing fan efficiency by employing the BLDG motor which can make stable operation of the fan and increase an air flow rate.Type: ApplicationFiled: August 19, 2004Publication date: June 5, 2008Inventors: In Gyu Kim, Byung Il Park, Ja Hyung Koo, Yang Ho Kim, Kyeong Wook Heo, Si Kyong Sung, Dong Hyuk Lee, Young Hwan Ko, Jun Hyeon Hwang, Ho Jin Song, Jin Seong Hwang, Young Ho Hong, Hwan Jong Choi, Geun Bae Hwang, Chun Su Kang, Tac Geun Kim
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Publication number: 20080127671Abstract: The present invention provides a fan apparatus which can reduce noise and enhance fan efficiency by employing a BLDC motor that can make stable drive of the fan and increase an air flow rate, and an outdoor unit of a front suction/discharge type in an air conditioner that can enhance heat exchange efficiency by employing the same.Type: ApplicationFiled: August 19, 2004Publication date: June 5, 2008Inventors: In Gyu Kim, Byung Il Park, Ja Hyung Koo, Yang Ho Kim, Kyeong Wook Heo, Si Kyong Sung, Dong Hyuk Lee, Young Hwan Ko, Jun Hyeon Hwang, Ho Jin Song, Jin Seong Hwang, Young Ho Hong, Hwan Jong Choi, Geun Bae Hwang, Chun Su Kang, Tac Geun Kim
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Publication number: 20080000257Abstract: A refrigerator having a main body includes a refrigerating chamber and a freezing chamber provided for storing foods. A cool air-generating device provided in the body generates cool air and a cool air-supplying device including at least one opening for discharging the cool air, is used to circulate the cool air through the freezing chamber, the refrigerating chamber, and the cool air-generating device. A separator provided adjacent to the opening acts to uniformly diffuse the cool air in the freezing chamber and the refrigerating chamber. The separator acts to separate two flows that are then brought back together. The collision and mixing of the two flows create a turbulent flow of air that is directed into the refrigerating and freezing chambers.Type: ApplicationFiled: December 14, 2004Publication date: January 3, 2008Inventors: Bong Jun Choi, Jong Min Sin, Jae Seong Sim, Young Jeong, Young Hwan Ko, Jun Hyun Hwang
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Publication number: 20060005568Abstract: Refrigerator including a freezing chamber (1), a refrigerating chamber (2) at a side of the freezing chamber, a barrier (303) between the freezing chamber and the refrigerating chamber, the barrier having a freezing chamber cold air passage (A) formed therein, a partition plate (7) for compartmentalizing a freezing chamber cold air passage in rear of the freezing chamber where an evaporator (104) is positioned, the evaporator provided in a “” form along the freezing chamber cold air passage (A) and the refrigerating chamber cold air passage (B), a partition wall (9) between the freezing chamber cold air passage and the refrigerating chamber cold air passage, and a fan (305) mounted over the freezing chamber cold air passage and the refrigerating chamber cold air flowing through respective cold air passage (10) to the freezing chamber and the refrigerating chamber respectively, thereby improving a cooling rate of the refrigerating chamber and providing more efficient refrigerator.Type: ApplicationFiled: December 16, 2003Publication date: January 12, 2006Applicant: LG Electronics Inc.Inventors: Jae Sim, Jong Min Shin, Young Hwan Ko
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Publication number: 20050279119Abstract: The present invention discloses a refrigerator which can individually cool a freezing chamber and a refrigerating chamber by dividing a heat exchange region of an evaporator into a freezing chamber side region and a refrigerating chamber side region, forming individual circulation passages for supplying cool air from each region to the freezing chamber and the refrigerating chamber, and forming a freezing chamber fan and a refrigerating chamber fan on each circulation passage, and method for controlling operation of the same which can efficiently perform a cooling operation and reduce power consumption by effectively controlling the operations of each component.Type: ApplicationFiled: June 21, 2004Publication date: December 22, 2005Inventors: Jae-Seng Sim, Young-Hwan Ko, Jongmin Shin, Bong-Jun Choi, Jun-Hyeon Hwang, Young Jeong, Samchul Ha, Yunho Hwang
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Patent number: 6857288Abstract: The present invention relates to a heat exchanger in a refrigerator having a simple structure and an improved heat exchange performance. For this, the present invention includes refrigerant tubes (10) having a plurality of straight parts (11) and a plurality of curved parts (12) connected between the straight parts arrange to form one or more columns perpendicular to each other, a plurality of straight plate type fins (20) fitted to the straight parts (11) of the refrigerant tubes (10) by means of a plurality of through holes (21) formed therein to form one or more than columns along a length direction, and one pair of reinforcing plates (30) fitted to the straight parts of the refrigerant tubes on both sides of the fins, wherein ST=D/N, where D denotes a width of the reinforcing plate (30), ST denotes a distance between centers of the refrigerant tube in each column, N denotes a number of the columns of the refrigerant tubes (21).Type: GrantFiled: February 28, 2002Date of Patent: February 22, 2005Assignee: LG Electronics Inc.Inventors: Sam Chul Ha, Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Young Hwan Ko, Young Jeong, Seong Hai Jeong, Alexei V Tikhonov
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Publication number: 20040265873Abstract: Disclosed is a method for identifying Streptomyces species using groEL2 gene that can compensate for drawbacks of conventional methods of morphologic classification and 16S rDNA identification being time-consuming, unfaithful, and expensive, thus enabling to efficiently identify Streptomyces species.Type: ApplicationFiled: April 15, 2004Publication date: December 30, 2004Applicant: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGYInventors: Bum-Joon Kim, Chang-Jin Kim, Young Hwan Ko, Jeong-Sam Koh, Dong-Jin Park, Hyang Burm Lee, Hong Kim, Sun-huyn Kim
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Patent number: 6789614Abstract: A heat exchanger is provided for a refrigerator and includes one or more refrigerant tubes for refrigerant flow, and a plurality of straight fins having lengths different from each other fitted to the refrigerant tubes at fixed intervals in parallel to each other by means of through holes formed therein. The heat exchanger includes sections having different intervals or spaces between fins, wherein sections with the smallest fin spaces have a size 75% or less of a total size of the heat exchanger.Type: GrantFiled: June 12, 2002Date of Patent: September 14, 2004Assignee: LG Electronics Inc.Inventors: Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Seong Hai Jeong, Young Hwan Ko, Young Jeong, Sam Chul Ha
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Publication number: 20040118152Abstract: The present invention relates to a heat exchanger in a refrigerator having a simple structure and an improved heat exchange performance. For this, the present invention includes refrigerant tubes (10) having a plurality of straight parts (11) and a plurality of curved parts (12) connected between the straight parts arrange to form one or more columns perpendicular to each other, a plurality of straight plate type fins (20) fitted to the straight parts (11) of the refrigerant tubes (10) by means of a plurality of through holes (21) formed therein to form one or more than columns along a length direction, and one pair of reinforcing plates (30) fitted to the straight parts of the refrigerant tubes on both sides of the fins, wherein ST=D/N, where D denotes a width of the reinforcing plate (30), ST denotes a distance between centers of the refrigerant tube in each column, N denotes a number of the columns of the refrigerant tubes (21).Type: ApplicationFiled: October 24, 2003Publication date: June 24, 2004Inventors: Sam Chul Ha, Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Young Hwan Ko, Young Jeong, Seong Hai Jeong, Alexei V Tikhonov
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Publication number: 20030159814Abstract: The present invention relates to a heat exchanger in a refrigerator having, a simple structure and improved performance. The present invention includes refrigerant tubes for refrigerant flow, and a plurality of straight fins having lengths different from each other fitted to the refrigerant tubes at fixed intervals in parallel to each other by means of through holes formed therein, the heat exchanger having sections of different fin intervals, wherein a section with the smallest fin intervals has a size being 75% of a total size or less.Type: ApplicationFiled: June 12, 2002Publication date: August 28, 2003Inventors: Jong Min Sin, Bong Jun Choi, Cheol Hwan Kim, Seong Hai Jeong, Young Hwan Ko, Young Jeong, Sam Chul Ha