Patents by Inventor Sang Ryul Lee

Sang Ryul 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: 20200312879
    Abstract: A semiconductor device includes: a first stack structure; a second stack structure adjacent to the first stack structure in a first direction; a first insulating layer including protrusion parts protruding in a second direction intersecting the first direction and including a concave part defined between the protrusion parts; and a second insulating layer located between the first stack structure and the second stack structure, the second insulating layer inserted into the concave part and the second insulating layer in contact with at least one protrusion part among the protrusion parts.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Applicant: SK hynix Inc.
    Inventors: Sang Yong LEE, Sang Min KIM, Jung Ryul AHN, Sang Hyun OH, Seung Bum CHA, Kang Sik CHOI
  • Patent number: 10727247
    Abstract: A semiconductor device includes: a first stack structure; a second stack structure adjacent to the first stack structure in a first direction; a first insulating layer including protrusion parts protruding in a second direction intersecting the first direction and including a concave part defined between the protrusion parts; and a second insulating layer located between the first stack structure and the second stack structure, the second insulating layer inserted into the concave part and the second insulating layer in contact with at least one protrusion part among the protrusion parts.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: July 28, 2020
    Assignee: SK hynix Inc.
    Inventors: Sang Yong Lee, Sang Min Kim, Jung Ryul Ahn, Sang Hyun Oh, Seung Bum Cha, Kang Sik Choi
  • Patent number: 10562983
    Abstract: Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 18, 2020
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Sung Hwan Bang, Ju Hee Shin, Jin Ryul Son, Kyung Yeol Park, Jeong Hee Chun, Ji Seon Jeong, Sang Youb Lee
  • Publication number: 20200049151
    Abstract: Provided is a liquid pump included in a module in which a flow path is changed depending on an operation mode. The liquid pump may have a flow path change means and a liquid transfer means integrally formed with each other; may reduce a package size by forming an inner flow path which may change a flow of cooling water in the flow path change means and the liquid transfer means which are integrally formed with each other; may have a simplified assembling structure and a coupling structure preventing both cooling water leakage and assembly loosening; and may minimize the number of components, assembling tools and connected portions in the module.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 13, 2020
    Inventors: Ho Sung KANG, Gwang Ok KO, Hyuk KIM, Ok Ryul MIN, Sang Hyun LEE, Jong Du LEE
  • Publication number: 20190382915
    Abstract: The present invention relates to an apparatus for growing a single crystal ingot capable of uniformly controlling an oxygen concentration in a longitudinal direction and a radial direction of a single crystal ingot by uniformly maintaining a convection pattern on a silicon melt interface, and a method for growing the same. In an apparatus for growing a single crystal ingot and a method for growing the same according to the present invention, a horizontal magnet is positioned to be movable up and down by a magnet moving unit around a crucible, so that a maximum gauss position (MGP) is positioned to be higher than the silicon melt interface and simultaneously, a rate of increase in the MGP is controlled to 3.5 mm/hr to 6.5 mm/hr, and thus it possible to secure simplicity and symmetry of convection on the silicon melt interface.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Inventors: Do-Won SONG, Hong-Woo LEE, Sang-Hee KIM, Ho-Jun LEE, Jung-Ryul KIM
  • Patent number: 10435809
    Abstract: The present invention relates to an apparatus for growing a single crystal ingot capable of uniformly controlling an oxygen concentration in a longitudinal direction and a radial direction of a single crystal ingot by uniformly maintaining a convection pattern on a silicon melt interface, and a method for growing the same. In an apparatus for growing a single crystal ingot and a method for growing the same according to the present invention, a horizontal magnet is positioned to be movable up and down by a magnet moving unit around a crucible, so that a maximum gauss position (MGP) is positioned to be higher than the silicon melt interface and simultaneously, a rate of increase in the MGP is controlled to 3.5 mm/hr to 6.5 mm/hr, and thus it possible to secure simplicity and symmetry of convection on the silicon melt interface.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: October 8, 2019
    Assignee: SK Siltron Co., Ltd.
    Inventors: Do-Won Song, Hong-Woo Lee, Sang-Hee Kim, Ho-Jun Lee, Jung-Ryul Kim
  • Publication number: 20190280006
    Abstract: A semiconductor device includes: a first stack structure; a second stack structure adjacent to the first stack structure in a first direction; a first insulating layer including protrusion parts protruding in a second direction intersecting the first direction and including a concave part defined between the protrusion parts; and a second insulating layer located between the first stack structure and the second stack structure, the second insulating layer inserted into the concave part and the second insulating layer in contact with at least one protrusion part among the protrusion parts.
    Type: Application
    Filed: November 5, 2018
    Publication date: September 12, 2019
    Applicant: SK hynix Inc.
    Inventors: Sang Yong LEE, Sang Min KIM, Jung Ryul AHN, Sang Hyun OH, Seung Bum CHA, Kang Sik CHOI
  • Patent number: 10325429
    Abstract: A card-type smart key includes at least one button, at least one touch sensor disposed around the at least one button, and a controller for receiving at least one input from the at least one button and the at least one touch sensor, wherein, upon sensing manipulation of any one of the at least one button and then sensing touch from a touch sensor disposed around the manipulation-sensed button, the controller performs a function corresponding to the manipulation.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 18, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Mobis Co., Ltd.
    Inventors: Sang Min Lee, Sung Ryul Cha, Duk Yun Cho
  • Patent number: 10316785
    Abstract: An apparatus and a method for controlling a flow control valve for a high-pressure fuel pump include: a pressure sensor for fuel in a delivery pipe; a control unit for controlling an operation of a flow control valve by controlling a current applied to a coil; a power switching unit for supplying or blocking driving power supplied to the flow control valve based on a control signal of the control unit; and a current adjustment unit electrically connected/disconnected with the flow control valve by the power switching unit to reduce a current supplied to the flow control valve when the current adjustment unit is connected with the flow control valve. Therefore, a noise and a vibration by collision between the plunger and the core upon closing the flow control valve may be attenuated by adjusting a current amount applied to the coil.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: June 11, 2019
    Assignee: MOTONIC CORPORATION
    Inventors: Sang Ryul Lee, Wan Jae Jeon, Jun Hyeok Lee, Hyung Soo Kim, Hae Jin Kim, Kyu Sung Choi, Yeong Dong Park
  • Patent number: 10167970
    Abstract: The present invention relates to a safe valve for a high pressure regulator, which includes: a guide body coupled to a valve port prepared at a body of a high pressure regulator; a valve body couple to an upper end part of the guide body to open the valve port when the overpressure occurs in a state that the valve port is closed; a lower spring installed inside the valve body for providing elastic force to the valve body; and a discharging pipe couple to a lower part of the guide body for discharging the fuel upon an opening operation of the valve body, wherein a function for a relief valve to relieve the overpressure by discharging the fuel when the overpressure is generated inside the high pressure regulator and a function for a purge valve separated from the body to discharge fuel inside the high pressure regulator are integrally provided.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: January 1, 2019
    Assignee: MOTONIC CORPORATION
    Inventors: Sang Ryul Lee, Wan Jae Jeon, Sung Kyung Gi, Sung Gil Jang, Yun Ho Jeong
  • Publication number: 20180100596
    Abstract: The present invention relates to a safe valve for a high pressure regulator, which includes: a guide body coupled to a valve port prepared at a body of a high pressure regulator; a valve body couple to an upper end part of the guide body to open the valve port when the overpressure occurs in a state that the valve port is closed; a lower spring installed inside the valve body for providing elastic force to the valve body; and a discharging pipe couple to a lower part of the guide body for discharging the fuel upon an opening operation of the valve body, wherein a function for a relief valve to relieve the overpressure by discharging the fuel when the overpressure is generated inside the high pressure regulator and a function for a purge valve separated from the body to discharge fuel inside the high pressure regulator are integrally provided.
    Type: Application
    Filed: December 12, 2016
    Publication date: April 12, 2018
    Inventors: Sang Ryul LEE, Wan Jae JEON, Sung Kyung GI, Sung Gil JANG, Yun Ho JEONG
  • Publication number: 20170298886
    Abstract: Provided is a high pressure fuel pump including: a body formed in a side surface thereof with a discharge hole; a pressurizing device for generating a suction force for sucking fuel supplied from a fuel tank and a pressurizing force for pressurizing the fuel at a high pressure; a seal carrier coupled to a lower portion of the body and coupled with the pressurizing device; a flow control valve coupled to one side of the body, for controlling a supply flow rate and a discharge pressure of the fuel; and a pressure relief valve for relieving an abnormal high pressure by transferring a part of discharged fuel to a low pressure space formed in the lower portion of the body when the abnormal high pressure exceeding a preset pressure limit is generated in a fuel supply system for supplying the fuel discharged through the discharge hole to an injector.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 19, 2017
    Inventors: Sang Ryul LEE, Jun Hyeok LEE, Myung Sub SHIM, Dong Sub KIM, Jae Hyuk HEO, Hee Jun YOUN
  • Publication number: 20170292468
    Abstract: An apparatus and a method for controlling a flow control valve for a high-pressure fuel pump include: a pressure sensor for fuel in a delivery pipe; a control unit for controlling an operation of a flow control valve by controlling a current applied to a coil; a power switching unit for supplying or blocking driving power supplied to the flow control valve based on a control signal of the control unit; and a current adjustment unit electrically connected/disconnected with the flow control valve by the power switching unit to reduce a current supplied to the flow control valve when the current adjustment unit is connected with the flow control valve. Therefore, a noise and a vibration by collision between the plunger and the core upon closing the flow control valve may be attenuated by adjusting a current amount applied to the coil.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Inventors: Sang Ryul LEE, Wan Jae JEON, Jun Hyeok LEE, Hyung Soo KIM, Hae Jin KIM, Kyu Sung CHOI, Yeong Dong PARK
  • Publication number: 20170175899
    Abstract: Provided is a sealing structure used in a high-pressure regulator for decompressing fuel supply pressure of the vehicle into low pressure, which includes: a body for providing the low pressure at a lower end of a spool through a balance groove communicating with an outlet port; and a sealing member accommodated on the body to maintain the low pressure of the spool, and including an auxiliary part for enhancing airtightness at a spring-energized seal. Accordingly, operation reliability is increased by minimizing the pressure change at the outlet according to the pressure change at the inlet, based on the energized seal during the process of decompressing the high-pressure hydrogen fuel in the hydrogen fuel cell electric vehicle.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 22, 2017
    Inventors: Sang Ryul LEE, Jun Hyeok LEE, Sung Gil JANG, Yong Heon KANG, Nam Yong PARK
  • Patent number: 8803051
    Abstract: A microwave oven includes a cavity having a cooking chamber; a magnetron oscillating microwave radiation used for cooking food in the cooking chamber; and a plurality of radiation openings through which the microwave radiation is radiated into the cooking chamber, each of the radiation openings having a length in a direction where the microwave radiation is guided by a waveguide, the length being greater or less than ?/4.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: August 12, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sang-Ryul Lee, Kyu-Young Kim, Jae-Myung Chin, Dong-Han Kim, Si-Young Choi, Sung-Ho Choi
  • Patent number: 8598498
    Abstract: Provided are a cooker and a method for controlling the same. Levels driven by a plurality of heat sources are controlled by input driving levels of all the heat sources received by an input unit. Accordingly, there is an advantage in that foods are more swiftly cooked by the plurality of heat sources.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: December 3, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sang-Ryul Lee, Kyu-Young Kim, Jae-Myung Chin, Dong-Han Kim, Si-Young Choi, Sung-Ho Choi
  • Patent number: 8546735
    Abstract: A microwave oven is provided. A barrier member prevents airflow provided by a fan assembly from being introduced again to the fan assembly. A separation member divides the airflow provided by the fan assembly to cool a first component and a second component. Thus, the components are efficiently cooled.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: October 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sung-Ho Choi, Kyu-Young Kim, Jae-Myung Chin, Sang-Ryul Lee, Dong-Han Kim, Si-Young Choi
  • Patent number: 8487224
    Abstract: A microwave oven is provided. A reinforcing part is provided to a multi-hole part for transferring the heat of a heater to a cooking chamber. This prevents deformation of the multi-hole part due to the heat of the heater.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: July 16, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sung-Ho Choi, Kyu-Young Kim, Jae-Myung Chin, Sang-Ryul Lee, Dong-Han Kim, Si-Young Choi
  • Patent number: 8461500
    Abstract: A microwave oven is provided. A component generating relatively high temperature heat and a component generating a relatively low temperature heat are cooled by airflow divided and provided by a cooling part, thereby improving operation reliability and durability of a product.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sung-Ho Choi, Kyu-Young Kim, Jae-Myung Chin, Sang-Ryul Lee, Dong-Han Kim, Si-Young Choi
  • Publication number: 20110165295
    Abstract: Provided are a cooker and a method for controlling the same. Levels driven by a plurality of heat sources are controlled by input driving levels of all the heat sources received by an input unit. Accordingly, there is an advantage in that foods are more swiftly cooked by the plurality of heat sources.
    Type: Application
    Filed: April 3, 2009
    Publication date: July 7, 2011
    Inventors: Sang-Ryul Lee, Kyu-Yong Kim, Jae-Myung Chin, Dong-Han Kim, Si-Young Choi, Sung-Ho Choi