Patents by Inventor Sung Jae Chung

Sung Jae Chung 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: 20230389316
    Abstract: The present disclosure relates to a memory device and a manufacturing method of the memory device. The memory device according to an embodiment includes a stacked structure including gate lines separated from and stacked on top of each other, a main plug formed in a vertical direction to the stacked structure, a plug separation pattern separating the main plug into first and second sub-plugs, a gap formed in the plug separation pattern; and a separation layer surrounding the gap.
    Type: Application
    Filed: November 21, 2022
    Publication date: November 30, 2023
    Applicant: SK hynix Inc.
    Inventors: Byung In LEE, Eun Mee KWON, In Su PARK, Hyung Jun YANG, Sang Heon LEE, Sung Jae CHUNG
  • Publication number: 20230211053
    Abstract: The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Application
    Filed: February 24, 2023
    Publication date: July 6, 2023
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, SUNG JAE CHUNG, PARTHA SAHA, OLEG VELIKOKHATNYI, MONI KANCHAN DATTA, DAE HO HONG, DA-TREN CHOU
  • Patent number: 11590266
    Abstract: The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: February 28, 2023
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Sung Jae Chung, Partha Saha, Oleg Velikokhatnyi, Moni Kanchan Datta, Dae Ho Hong, Da-Tren Chou
  • Patent number: 11376349
    Abstract: Biodegradable compositions containing from 10.0 to 95.0 weight percent iron for use in preparing medical devices. These biodegradable compositions exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions also include one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique and high energy mechanical alloying followed by compaction and sintering, film deposition techniques, such as, pulsed laser deposition (PLD), as well as melting, casting, homogenization and extrusion methods. The resulting compositions and the medical devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: July 5, 2022
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Sung Jae Chung, Partha Saha, Oleg Velikokhatnyi, Moni Kanchan Datta, Dae Ho Hong, Da-Tren Chou
  • Patent number: 11145675
    Abstract: A semiconductor device includes stack structures each including a first conductive layer, a substrate disposed under the stack structures, first impurity regions disposed in the substrate, and at least one trench passing through the stack structures and disposed above the first impurity regions.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: October 12, 2021
    Assignee: SK hynix Inc.
    Inventors: Yung Jun Kim, Won Hyo Cha, Byung Soo Park, Sang Tae Ahn, Sung Jae Chung
  • Publication number: 20200279865
    Abstract: A semiconductor device includes stack structures each including a first conductive layer, a substrate disposed under the stack structures, first impurity regions disposed in the substrate, and at least one trench passing through the stack structures and disposed above the first impurity regions.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Applicant: SK hynix Inc.
    Inventors: Yung Jun KIM, Won Hyo CHA, Byung Soo PARK, Sang Tae AHN, Sung Jae CHUNG
  • Patent number: 10692885
    Abstract: A semiconductor device includes stack structures each including a first conductive layer, a substrate disposed under the stack structures, first impurity regions disposed in the substrate, and at least one trench passing through the stack structures and disposed above the first impurity regions.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 23, 2020
    Assignee: SK hynix Inc.
    Inventors: Yung Jun Kim, Won Hyo Cha, Byung Soo Park, Sang Tae Ahn, Sung Jae Chung
  • Publication number: 20200000973
    Abstract: The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 2, 2020
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, SUNG JAE CHUNG, PARTHA SAHA, OLEG VELIKOKHATNYI, MONI KANCHAN DATTA, DAE HO HONG, DA-TREN CHOU
  • Publication number: 20190287999
    Abstract: A semiconductor device includes stack structures each including a first conductive layer, a substrate disposed under the stack structures, first impurity regions disposed in the substrate, and at least one trench passing through the stack structures and disposed above the first impurity regions.
    Type: Application
    Filed: October 25, 2018
    Publication date: September 19, 2019
    Applicant: SK hynix Inc.
    Inventors: Yung Jun KIM, Won Hyo CHA, Byung Soo PARK, Sang Tae AHN, Sung Jae CHUNG
  • Patent number: 10128260
    Abstract: A semiconductor device includes a substrate including a cell region and a peripheral region adjacent to the cell region, a cell stack structure located in the cell region, the cell stack structure including vertical memory strings, a circuit located in the peripheral region, the circuit driving the vertical memory strings, and an interlayer insulating layer formed on the substrate to cover the cell stack structure and the circuit, and including air gaps located between the cell region and the peripheral region.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: November 13, 2018
    Assignee: SK Hynix Inc.
    Inventor: Sung Jae Chung
  • Publication number: 20170221919
    Abstract: A semiconductor device includes a substrate including a cell region and a peripheral region adjacent to the cell region, a cell stack structure located in the cell region, the cell stack structure including vertical memory strings, a circuit located in the peripheral region, the circuit driving the vertical memory strings, and an interlayer insulating layer formed on the substrate to cover the cell stack structure and the circuit, and including air gaps located between the cell region and the peripheral region.
    Type: Application
    Filed: July 5, 2016
    Publication date: August 3, 2017
    Inventor: Sung Jae CHUNG
  • Patent number: 9082488
    Abstract: A semiconductor memory device includes a memory block configured to include memory cells coupled to word lines and a peripheral circuit configured to perform a first program operation, a program verifying operation and a second program verifying operation for memory cells coupled to a word line selected from the word lines, and supply program allowable voltages having different levels to selected bit lines of program allowable cells located between program inhibition cells in the first program operation and the second program operation.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 14, 2015
    Assignee: SK HYNIX INC.
    Inventors: Jung Woon Shim, Sung Jae Chung, Jin Gu Kim, Dong Hwan Lee, Seung Won Kim, Su Min Yi
  • Patent number: 8767255
    Abstract: A control method of an image forming apparatus which is connected to an external apparatus, supports a resource saving mode, and outputs document data is provided. The control method includes: selecting the document data to be output, selecting an output option to be applied to the selected document data, comparing a resource saving value corresponding to the output option to be applied to the document data and a resource saving set value which is pre-set in the image forming apparatus, displaying at least one suggestion option to save resources of the document data according to a result of comparison, and selecting one of the displayed suggestion option and outputting the document data.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: July 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Soo Ha, Sung-Jae Chung, Bong-Gun Kim, Sang-Su Lee, Sung-Man Shin
  • Publication number: 20140097277
    Abstract: The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 10, 2014
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, SUNG JAE CHUNG, PARTHA SAHA, OLEG VELIKOKHATNYI, MONI KANCHAN DATTA, DAE HO HONG, DA-TREN CHOU
  • Publication number: 20140063968
    Abstract: A semiconductor memory device includes a memory block configured to include memory cells coupled to word lines and a peripheral circuit configured to perform a first program operation, a program verifying operation and a second program verifying operation for memory cells coupled to a word line selected from the word lines, and supply program allowable voltages having different levels to selected bit lines of program allowable cells located between program inhibition cells in the first program operation and the second program operation.
    Type: Application
    Filed: December 18, 2012
    Publication date: March 6, 2014
    Applicant: SK hynix Inc.
    Inventors: Jung Woon Shim, Sung Jae Chung, Jin Gu Kim, Dong Hwan Lee, Seung Won Kim, Su Min Yi
  • Patent number: 8634251
    Abstract: A program method of a semiconductor memory device may include precharging first bit lines, coupled to first strings, to increase a potential level of the first strings to a first potential level; programming memory cells of a selected word line, wherein the memory cells are coupled to second bit lines; pre-discharging the first bit lines to decrease a potential level of the word lines to a second potential level, wherein the second potential level is lower than the first potential level; and discharging the first bit lines and the word lines to a ground voltage after the pre-discharging.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: January 21, 2014
    Assignee: Hynix Semiconductor Inc.
    Inventor: Sung Jae Chung
  • Patent number: 8537632
    Abstract: A method of erasing a semiconductor memory device comprises grouping a plurality of word lines of each memory block into at least two groups based on intensity of disturbance between neighboring word lines; performing an erase operation by applying a ground voltage to all word lines of a selected memory block and by applying an erase voltage to a well of the selected memory block; and first increasing the ground voltage of one group of the groups to a positive voltage during the erase operation.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: September 17, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Hea Jong Yang, Hee Youl Lee, Sung Jae Chung, Hyun Heo, Jeong Hyong Yi, Yong Dae Park
  • Patent number: 8533631
    Abstract: Disclosed are an image forming apparatus and a menu select and display method thereof. A select and display method of a menu which is displayed on a (touch) screen of an image forming apparatus, the method includes: displaying an initial screen including at least one menu list to perform at least one of functions of the image forming apparatus; selecting one of the displayed menu lists by touch; and displaying in the selected menu area a first subordinate menu corresponding to the menu area to set an option for the selected menu without converting the remaining menus. With this, an image forming apparatus and a menu select and display method thereof selectively converts a selected menu area only and displays a subordinate menu to set an option for the menu to thereby reduce a load arising from the conversion and returning of the overall screen and reduces user's inconvenience.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: September 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-soo Ha, Sung-jae Chung, Bong-gun Kim, Sang-{grave over (s)}u Lee, Sung-man Shin
  • Patent number: 8520438
    Abstract: A program method of a nonvolatile memory device includes applying a program voltage to a selected word line, applying a first pass voltage to at least one word line adjacent to the selected word line, applying at least one first middle voltage lower than the first pass voltage but higher than an isolation voltage to at least one word line adjacent to the word line receiving the first pass voltage, applying the isolation voltage to a word line adjacent to the word line receiving the first middle voltage, applying at least one second middle voltage higher than the isolation voltage but lower than a second pass voltage to at least one word line adjacent to the word line receiving the isolation voltage, and applying a second pass voltage to at least one word line adjacent to the word line receiving the second middle voltage.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: August 27, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Ji-Hyun Seo, Byong-Kook Kim, Sung-Jae Chung
  • Patent number: 8495493
    Abstract: An enlargement display method of a target area of an image forming apparatus which comprises a touch screen includes selecting a target zooming function to zoom at least one menu displayed on the touch screen as a target screen to perform at least one of functions of the image forming apparatus, enlarging and displaying at least one menu corresponding to the target area according to the selection, selecting at least one of navigation buttons to move the target area, and moving and displaying the enlarged target area through the selected navigation button. With this, the image forming apparatus and the enlargement display method enlarge and display the necessary menu as the target area and the target area is moved through the navigation button to thereby improve a user's convenience.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-soo Ha, Sung-jae Chung, Bong-gun Kim, Sang-su Lee, Sung-man Shin