Patents by Inventor Yong CHA

Yong CHA 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).

  • Method of preparing butadiene
    Patent number: 9751819
    Abstract: The present invention relates to a method of preparing butadiene. More particularly, the present invention relates to a method of preparing butadiene by feeding butene and oxygen into a reactor containing a composite metal oxide catalyst and performing oxidative dehydrogenation, wherein a mole ratio of the oxygen to the butene is 1.8 to 2.2. In accordance with the present invention, a method of preparing butadiene to secure long-term operation stability by maintaining the intensity of a catalyst despite oxidative dehydrogenation and not to decrease selectivity due to less side reaction is provided.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: September 5, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Dae Heung Choi, Dong Hyun Ko, Myung Ji Suh, Kyong Yong Cha, Ye Seul Hwang, Jun Han Kang, Hyun Seok Nam, Joo Hyuck Lee, Sang Jin Han, Jun Kyu Han
  • FLIGHT PATH CALCULATING AND SEARCHING METHOD OF A UNMANNED AERIAL VEHICLE WITH REGENERATIVE FUEL CELLS AND SOLAR CELLS FOR HIGH ALTITUDE LONG ENDURANCE, AND A SEARCHING APPARATUS THEREOF
    Publication number: 20170236427
    Abstract: Provided is a flight path calculating method for high altitude long endurance of an unmanned aerial vehicle based on regenerative fuel cells and solar cells according to an exemplary embodiment of the present invention may include a modeling step, a simulation step, and an analyzing step, and may be configured in a program form executed by an arithmetic processing means including a computer. a flight path searching method and a flight path searching apparatus for performing continuous flight path re-searching on the basis of information measured in real time during a flight of the unmanned aerial vehicle in the stratosphere to change a flight path so that the unmanned aerial vehicle may permanently perform long endurance in the stratosphere is provided.
    Type: Application
    Filed: February 16, 2017
    Publication date: August 17, 2017
    Inventors: Minjin KIM, Young-jun SOHN, Seung-gon KIM, Gu-gon PARK, Byungchan BAE, Sung-dae YIM, Seok-hee PARK, Tae-hyun YANG, Won-yong LEE, Chang-soo KIM, Moon-Yong CHA
  • COMPOSITE OXIDE CATALYST FOR PREPARING BUTADIENE AND METHOD OF PREPARING THE SAME
    Publication number: 20170232426
    Abstract: Disclosed are a composite oxide catalyst for preparing butadiene and a method of preparing the same. More particularly, a composite oxide catalyst, for preparing butadiene, including a metal composite oxide and AlPO4, and a method of preparing the same are disclosed. According to the present disclosure, a composite oxide catalyst for preparing butadiene, which includes a specific binder material, prevents generation of ingredients with a high boiling point, has superior catalyst strength, catalytic activity and butadiene yield, and a method of preparing the same are provided.
    Type: Application
    Filed: August 24, 2015
    Publication date: August 17, 2017
    Inventors: Myung Ji SUH, Kyong Yong CHA, Dae Heung CHOI, Ye Seul HWANG, Dong Hyun KO
  • Oxidation catalyst for production of butadiene and method of preparing the same
    Patent number: 9724676
    Abstract: Disclosed is a multi-component bismuth molybdate catalyst for production of butadiene which comprises bismuth, molybdenum and at least one metal having a monovalent, divalent or trivalent cation, and further comprises cesium and potassium and thus has advantages of improving conversion ratio, yield and selectivity of butadiene and of providing stability of process operation.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: August 8, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Dae Heung Choi, Dong Hyun Ko, Jun Han Kang, Kyong Yong Cha, Dae Chul Kim, Hyun Seok Nam, Myung Ji Suh
  • Semiconductor memory device for improving signal integrity issue in center pad type of stacked chip structure
    Patent number: 9721644
    Abstract: A semiconductor memory device includes a first memory die having a first termination resistor for an on-die termination and a second memory die having a second termination resistor for an on-die termination and formed on the first memory die. Each of the first and second memory dies has a center pad type and operates based on a multi-rank structure. When the first memory die is accessed, the second termination resistor is connected to the second memory die, and when the second memory die is accessed, the first termination resistor is connected to the first memory die.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 1, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keung Beum Kim, HyunJong Moon, Heeseok Lee, Seung-Yong Cha
  • Semiconductor package
    Patent number: 9659852
    Abstract: A semiconductor package may include a package substrate with a top surface and a bottom surface opposite to the top surface, the top surface of the package substrate configured to have a semiconductor chip mounted thereon, a power block and a ground block in the package substrate, the power block configured as a power pathway penetrating the package substrate, and the ground block configured as a ground pathway penetrating the package substrate, first vias extended from the power block and the ground block, and the first vias electrically connected to the semiconductor chip, second vias extended from the power block and the ground block toward the bottom surface of the package substrate, and block vias to penetrate the power block and the ground block, the block vias electrically connected to the semiconductor chip and electrically separated from the power block and the ground block.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 23, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tongsuk Kim, HyunJong Moon, Tai-Hyun Eum, Heeseok Lee, Keung Beum Kim, Yonghoon Kim, Yoonha Jung, Seung-Yong Cha
  • Catalyst composition and method for preparing same
    Patent number: 9592496
    Abstract: Disclosed are a catalyst composition for oxidative dehydrogenation and a method of preparing the same. More particularly, disclosed is a catalyst composition comprising a multi-ingredient-based metal oxide catalyst and a mixed metal hydroxide. The catalyst composition and the method of preparing the same according to the present disclosure may prevent loss occurring in a filling process due to superior mechanical durability and wear according to long-term use, may inhibit polymer formation and carbon deposition during reaction, and may provide a superior conversion rate and superior selectivity.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: March 14, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Dae Chul Kim, Dong Hyun Ko, Sung June Cho, Jun Han Kang, Kyong Yong Cha, Joo Hyuck Lee, Hyun Seok Nam, Dae Heung Choi, Myung Ji Suh, Ye Seul Hwang, Jun Kyu Han, Sang Jin Han
  • SEMICONDUCTOR MEMORY DEVICE FOR IMPROVING SIGNAL INTEGRITY ISSUE IN CENTER PAD TYPE OF STACKED CHIP STRUCTURE
    Publication number: 20170069369
    Abstract: A semiconductor memory device includes a first memory die having a first termination resistor for an on-die termination and a second memory die having a second termination resistor for an on-die termination and formed on the first memory die. Each of the first and second memory dies has a center pad type and operates based on a multi-rank structure. When the first memory die is accessed, the second termination resistor is connected to the second memory die, and when the second memory die is accessed, the first termination resistor is connected to the first memory die.
    Type: Application
    Filed: July 12, 2016
    Publication date: March 9, 2017
    Inventors: Keung Beum Kim, HyunJong Moon, Heeseok Lee, Seung-Yong Cha
  • METHOD OF PREPARING CONJUGATED DIENE AND DEVICE THEREFOR
    Publication number: 20170036972
    Abstract: Disclosed are a method of preparing conjugated diene and a device therefor. More particularly, disclosed a method of preparing conjugated diene, wherein generated gas including butadiene is cooled and then water discharged at a lower part is not directly treated as waste water and subjected to byproduct removal and steam-extraction to utilize converted steam, and an installation issue of an existing biological waste water disposal equipment due to an excessive amount of byproducts can be resolved, and a device therefor are disclosed.
    Type: Application
    Filed: October 20, 2015
    Publication date: February 9, 2017
    Inventors: Sang Jin HAN, Jun Han KANG, Dong Hyun KO, Hyun Seok NAM, Joo Hyuck LEE, Jun Kyu HAN, Myung Ji SUH, Kyong Yong CHA, Dae Heung CHOI, Ye Seul HWANG
  • METHOD OF PREPARING MULTICOMPONENT COMPOSITE METAL OXIDE CATALYST
    Publication number: 20160368839
    Abstract: Provided are a method of preparing a multicomponent bismuth-molybdenum composite metal oxide catalyst, and a multicomponent bismuth-molybdenum composite metal oxide catalyst prepared thereby. According to the preparation method, since the almost same structure as that of a typical quaternary bismuth-molybdenum catalyst may be obtained by performing two-step co-precipitation, i.e., primary and secondary co-precipitation, of metal components constituting the catalyst, the reduction of catalytic activity due to the deformation of the structure of the catalyst may be suppressed.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 22, 2016
    Inventors: Ye Seul HWANG, Dong Hyun KO, Kyong Yong CHA, Dae Heung CHOI, Myung Ji SUH, Jun Han KANG, Joo Hyuck LEE, Hyun Seok NAM, Jun Kyu HAN, Sang Jin HAN
  • Flash memory device
    Patent number: 9514822
    Abstract: A flash memory device is disclosed. The flash memory device includes: a cell array region; an X-decoder region arranged adjacent to the cell array region in a first direction; a discharge transistor region disposed between the cell array region and the X-decoder region; a first metal line formed to pass through the X-decoder region, the discharge transistor region, and the cell array region, and arranged to extend in the first direction; and a second metal line including a first line patterns arranged parallel to the first metal line between the first metal lines, and a second line pattern interconnecting both ends of the first line patterns and extending in a second direction crossing the first direction.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: December 6, 2016
    Assignee: SK Hynix Inc.
    Inventors: Go Hyun Lee, Jin Ho Kim, Jae Yong Cha
  • METHOD OF PREPARING BUTADIENE
    Publication number: 20160347685
    Abstract: The present invention relates to a method of preparing butadiene. More particularly, the present invention relates to a method of preparing butadiene by feeding butene and oxygen into a reactor containing a composite metal oxide catalyst and performing oxidative dehydrogenation, wherein a mole ratio of the oxygen to the butene is 1.8 to 2.2. In accordance with the present invention, a method of preparing butadiene to secure long-term operation stability by maintaining the intensity of a catalyst despite oxidative dehydrogenation and not to decrease selectivity due to less side reaction is provided.
    Type: Application
    Filed: November 25, 2015
    Publication date: December 1, 2016
    Inventors: Dae Heung CHOI, Dong Hyun KO, Myung Ji SUH, Kyong Yong CHA, Ye Seul HWANG, Jun Han KANG, Hyun Seok NAM, Joo Hyuck LEE, Sang Jin HAN, Jun Kyu HAN
  • BISMUTH MOLYBDATE-BASED CATALYST HAVING ZEOLITE COATING LAYER, METHOD OF PREPARING THE SAME, AND METHOD OF PREPARING 1,3-BUTADIENE USING THE SAME
    Publication number: 20160256855
    Abstract: The present invention relates to a bismuth molybdate-based composite oxide catalyst having a microporous zeolite coating layer on the surface thereof and thus having high selectivity for 1,3-butadiene, a method of preparing the same, and a method of preparing 1,3-butadiene using the same. The catalyst has a microporous zeolite coating layer, and thus enables only gaseous products (light) to selectively pass through the zeolite coating layer, improving selectivity for 1,3-butadiene.
    Type: Application
    Filed: November 18, 2014
    Publication date: September 8, 2016
    Applicant: LG CHEM, Ltd.
    Inventors: Dae Heung CHOI, Dong Hyun KO, Jun Han KANG, Kyong Yong CHA, Dae Chul KIM, Joo Hyuck LEE, Hyun Seok NAM, Myung Ji SUH, Ye Seul HWANG, Jun Kyu HAN, Sang Jin HAN
  • FLASH MEMORY DEVICE
    Publication number: 20160225452
    Abstract: A flash memory device is disclosed. The flash memory device includes: a cell array region; an X-decoder region arranged adjacent to the cell array region in a first direction; a discharge transistor region disposed between the cell array region and the X-decoder region; a first metal line formed to pass through the X-decoder region, the discharge transistor region, and the cell array region, and arranged to extend in the first direction; and a second metal line including a first line patterns arranged parallel to the first metal line between the first metal lines, and a second line pattern interconnecting both ends of the first line patterns and extending in a second direction crossing the first direction.
    Type: Application
    Filed: August 5, 2015
    Publication date: August 4, 2016
    Inventors: Go Hyun LEE, Jin Ho KIM, Jae Yong CHA
  • METHODS, SYSTEMS AND RECORDING MEDIUMS FOR PROVIDING MESSENGER SERVICE WITH USER CUSTOMIZABLE TEMPLATES
    Publication number: 20160197858
    Abstract: In a messenger service method for implementing communications between a first terminal and a second terminal, one of a plurality of templates is selected at the first terminal, and text is received from a user. The received text is combined with the selected one of the plurality of templates to generate a modified template including the received text, and the modified template is displayed. The modified template is then transmitted to the second terminal.
    Type: Application
    Filed: August 28, 2015
    Publication date: July 7, 2016
    Inventor: Ki Yong CHA
  • METHODS, SYSTEMS AND RECORDING MEDIUMS FOR PROVIDING MESSENGER SERVICE HAVING SPECIFIC CONDITION
    Publication number: 20160197866
    Abstract: A social network service method implemented with a computer is provided which includes receiving at least one control condition for controlling an operation of a social network service from a user, generating a folder operated by the at least one control condition, associating at least one chatting element with the folder, and determining whether to control the operation of the social network service based on the at least one control condition, in response to a message from a conversation partner associated with the at least one chatting element.
    Type: Application
    Filed: August 31, 2015
    Publication date: July 7, 2016
    Inventor: Ki Yong CHA
  • SEMICONDUCTOR PACKAGE
    Publication number: 20160172291
    Abstract: A semiconductor package may include a package substrate with a top surface and a bottom surface opposite to the top surface, the top surface of the package substrate configured to have a semiconductor chip mounted thereon, a power block and a ground block in the package substrate, the power block configured as a power pathway penetrating the package substrate, and the ground block configured as a ground pathway penetrating the package substrate, first vias extended from the power block and the ground block, and the first vias electrically connected to the semiconductor chip, second vias extended from the power block and the ground block toward the bottom surface of the package substrate, and block vias to penetrate the power block and the ground block, the block vias electrically connected to the semiconductor chip and electrically separated from the power block and the ground block.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 16, 2016
    Inventors: Tongsuk KIM, HyunJong MOON, Tai-Hyun EUM, Heeseok LEE, Keung Beum KIM, Yonghoon KIM, Yoonha JUNG, Seung-Yong CHA
  • SEMICONDUCTOR PACKAGES
    Publication number: 20160133542
    Abstract: A semiconductor package includes a package substrate including a first region, a thermal block penetrating the first region and exposed at top and bottom surfaces of the package substrate, a semiconductor chip on the package substrate, bumps disposed between the package substrate and the semiconductor chip and including first bumps being in contact with the thermal block, and terminals disposed on the bottom surface of the package substrate and including first terminals being in contact with the thermal block. The thermal block is one of a power path and a ground path.
    Type: Application
    Filed: August 13, 2015
    Publication date: May 12, 2016
    Inventors: Seung-Yong CHA, Keung Beum KIM, Yonghoon KIM, HyunJong MOON, Heeseok LEE
  • OXIDATION CATALYST FOR PRODUCTION OF BUTADIENE AND METHOD OF PREPARING THE SAME
    Publication number: 20150375212
    Abstract: Disclosed is a multi-component bismuth molybdate catalyst for production of butadiene which comprises bismuth, molybdenum and at least one metal having a monovalent, divalent or trivalent cation, and further comprises cesium and potassium and thus has advantages of improving conversion ratio, yield and selectivity of butadiene and of providing stability of process operation.
    Type: Application
    Filed: May 2, 2014
    Publication date: December 31, 2015
    Inventors: Dae Heung CHOI, Dong Hyun KO, Jun Han KANG, Kyong Yong CHA, Dae Chul KIM, Hyun Seok NAM, Myung Ji SUH
  • CATALYST COMPOSITION AND METHOD FOR PREPARING SAME
    Publication number: 20150352534
    Abstract: Disclosed are a catalyst composition for oxidative dehydrogenation and a method of preparing the same. More particularly, disclosed is a catalyst composition comprising a multi-ingredient-based metal oxide catalyst and a mixed metal hydroxide. The catalyst composition and the method of preparing the same according to the present disclosure may prevent loss occurring in a filling process due to superior mechanical durability and wear according to long-term use, may inhibit polymer formation and carbon deposition during reaction, and may provide a superior conversion rate and superior selectivity.
    Type: Application
    Filed: November 14, 2014
    Publication date: December 10, 2015
    Inventors: Dae Chul KIM, Dong Hyun KO, Sung June CHO, Ju Han KANG, Kyong Yong CHA, Joo Hyuck LEE, Hyun Seok NAM, Dae Heung CHOI, Myung Ji SUH, Ye Seul HWANG, Jun Kyu HAN, Sang Jin HAN