Patents by Inventor Jung-Hyuk Lee

Jung-Hyuk Lee 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: 20140047869
    Abstract: A drum washing machine and a control method thereof. The drum washing machine includes a cabinet, a tub including a first tub part and a second tub part, a drum, an inlet provided at one side of the second tub part and supplying condensed water, and at least one flow path provided on one surface from among the inner surfaces of the second tub part opposite the drum and guiding flow of the condensed water to increase a contact area between the condensed water supplied from the inlet and the second tub part. The drum washing machine improves the structure of the tub to effectively inject condensed water, and may thus increase condensing efficiency. Further, the drum washing machine improves the structures of the tub and the drying duct, and may thus prevent accumulation of lint and lowering of performance of the drum washing machine.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Doo Kim, Jung Hyuk Lee, Kyung Up Lim, Nam Kyu Jun, Yong Sok Lee, Hyung Sub Lim, Min Hee Kang
  • Publication number: 20130051123
    Abstract: A resistance change memory device includes an array of resistance change memory cells, and a writing circuit configured to reset a selected memory cell to a high resistance state by supplying a RESET current to the selected memory cell in the array of resistance change memory cells in a program operation mode, wherein a level of the RESET current depends on a distribution of initial RESET currents for the array of resistance change memory cells.
    Type: Application
    Filed: July 20, 2012
    Publication date: February 28, 2013
    Inventors: Jung Hyuk LEE, Daewon Ha, Kyu-Rie Sim
  • Publication number: 20120314478
    Abstract: A resistive memory device and a sensing margin trimming method are provided. The resistive memory device includes a memory cell array and a trimming circuit. The memory cell array has a plurality of resistive memory cells. The trimming circuit generates a trimming signal according to a characteristic distribution shift value of the resistive memory cells. With the inventive concept, although a characteristic distribution of memory cells is varied, an erroneous read operation is minimized or reduced by securing a sensing margin stably. Accordingly, a fabrication yield of the resistive memory device is bettered.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 13, 2012
    Inventors: DAEWON HA, JUNG HYUK LEE
  • Publication number: 20120225504
    Abstract: A method of manufacturing a semiconductor device includes providing a wafer, forming a memory device which includes phase change material layer on the wafer, completing a wafer level process of manufacturing the semiconductor device, and performing a thermal treatment process on the wafer to densify the phase change material. To this end, the process temperature of the thermal treatment is higher than the crystallization temperature of the phase change material and lower than the melting point of the phase change material.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 6, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: SANG-HYUN HONG, JUNG-HYUK LEE, SU-JIN AHN, DAE-WON HA
  • Patent number: 8231979
    Abstract: The present invention relates to forming the material represented by the following formula (1) into a layer having hexagonal crystalline structure, which is different from the orthorhombic crystalline structure of the material in bulk phase, so that the material can be used more effectively in various fields requiring multiferroic properties by obtaining multiferroic properties enhanced than the conventional multiferroic materials. RMnO3, (R=Lanthanide) . . .
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: July 31, 2012
    Assignee: Seoul National University R & DB Foundation
    Inventors: Tae Won Noh, Jong Gul Yoon, Jung Hyuk Lee
  • Patent number: 8102729
    Abstract: A variable resistance memory device may include first and second memory cells connected to different lengths of bit lines, respectively, and a select circuit, configured to select the first and second memory cells, which is connected to the first and second memory cells through word lines. The select circuit is configured to compensate for a difference of resistances in the different of the lengths of the bit lines.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: January 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Hyuk Lee, Daewon Ha, Kwang-Woo Lee
  • Patent number: 8050083
    Abstract: A phase change memory device and a write method thereof allow writing of both volatile and non-volatile data on the phase change memory device. The phase change memory device may be written by setting a write mode as one of a volatile write mode and a non-volatile write mode, and writing data as volatile or non-volatile by applying a write pulse corresponding to the write mode, wherein, when power is not supplied to the phase change memory device, the non-volatile data is retained and the volatile data is not retained.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-Won Ha, Jung-Hyuk Lee, Gi-Tae Jeong, Hyeong-Jun Kim
  • Patent number: 8014190
    Abstract: A method of programming a resistance variable memory cell to a given logic state includes applying a first programming current to the memory cell, executing a verify read of the memory cell by sensing a logic state of the memory cell, and applying a second programming current to the memory cell when the sensed logic state is different than the given logic state, where the second programming current is greater than the first programming current.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: September 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Hyuk Lee, Kwangjin Lee, Daewon Ha, Gitae Jeong, Daehwan Kang
  • Publication number: 20110134687
    Abstract: A method of programming a resistance variable memory cell to a given logic state includes applying a first programming current to the memory cell, executing a verify read of the memory cell by sensing a logic state of the memory cell, and applying a second programming current to the memory cell when the sensed logic state is different than the given logic state, where the second programming current is greater than the first programming current
    Type: Application
    Filed: February 9, 2011
    Publication date: June 9, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung Hyuk LEE, Kwangjin LEE, Daewon HA, Gitae JEONG, Daehwan KANG
  • Patent number: 7907437
    Abstract: A method of programming a resistance variable memory cell to a given logic state includes applying a first programming current to the memory cell, executing a verify read of the memory cell by sensing a logic state of the memory cell, and applying a second programming current to the memory cell when the sensed logic state is different than the given logic state, where the second programming current is greater than the first programming current.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: March 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Hyuk Lee, Kwangjin Lee, Daewon Ha, Gitae Jeong, Daehwan Kang
  • Patent number: 7843741
    Abstract: A number of read cycles applied to a selected memory location of a memory device, such as a variable-resistance memory device, is monitored. Write data to be written to the selected memory location is received. Selective pre-write verifying and writing of the received write data to the selected memory location occurs based on the monitored number of read cycles. Selectively pre-write verifying and writing of the received write data may include, for example, writing received write data to the selected memory cell region without pre-write verification responsive to the monitored number of read cycles being greater than a predetermined number of read cycles.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: November 30, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-Sik Jeong, Kwang-Jin Lee, Dae-Won Ha, Gi-Tae Jeong, Jung-Hyuk Lee
  • Publication number: 20100271867
    Abstract: Provided is a variable resistance memory device. The variable resistance memory device may include first and second memory cells connected to different lengths of bit lines, respectively, and a select circuit, configured to select the first and second memory cells, which is connected to the first and second memory cells through word lines. The select circuit is configured to compensate for a difference of resistances in the different of the lengths of the bit lines.
    Type: Application
    Filed: March 17, 2010
    Publication date: October 28, 2010
    Inventors: Jung Hyuk Lee, Daewon Ha, Kwang-Woo Lee
  • Publication number: 20090296458
    Abstract: A method of programming a resistance variable memory cell to a given logic state includes applying a first programming current to the memory cell, executing a verify read of the memory cell by sensing a logic state of the memory cell, and applying a second programming current to the memory cell when the sensed logic state is different than the given logic state, where the second programming current is greater than the first programming current
    Type: Application
    Filed: May 26, 2009
    Publication date: December 3, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung Hyuk Lee, Kwangjin Lee, Daewon Ha, Gitae Jeong, Daehwan Kang
  • Publication number: 20090285008
    Abstract: A number of read cycles applied to a selected memory location of a memory device, such as a variable-resistance memory device, is monitored. Write data to be written to the selected memory location is received. Selective pre-write verifying and writing of the received write data to the selected memory location occurs based on the monitored number of read cycles.
    Type: Application
    Filed: April 7, 2009
    Publication date: November 19, 2009
    Inventors: Hong-Sik Jeong, Kwang-Jin Lee, Dae-Won Ha, Gi-Tae Jeong, Jung-Hyuk Lee
  • Publication number: 20090246543
    Abstract: The present invention relates to forming the material represented by the following formula (1) into a layer having hexagonal crystalline structure, which is different from the orthorhombic crystalline structure of the material in bulk phase, so that the material can be used more effectively in various fields requiring multiferroic properties by obtaining multiferroic properties enhanced than the conventional multiferroic materials. RMnO3, (R=Lanthanide) . . .
    Type: Application
    Filed: February 16, 2007
    Publication date: October 1, 2009
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Tae Won Noh, Jong Gul Yoon, Jung Hyuk Lee