Patents by Inventor Hyung Ki Park

Hyung Ki Park 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: 20210265087
    Abstract: Disclosed are an oriented electrical steel sheet and a manufacturing method thereof. An exemplary embodiment of the present invention provides a method of manufacturing an oriented electrical steel sheet, including: providing a slab including Si at 1.0 to 4.0 wt %, C at 0.1 to 0.4 wt %, and the remaining portion including Fe and other inevitably incorporated impurities; reheating the slab; producing a hot rolled steel sheet by hot rolling the slab; performing annealing of the hot rolled steel sheet; cold rolling the annealed hot rolled steel sheet; decarburizing and primary annealing the cold rolled steel sheet; cold rolling the decarburized and annealed steel sheet; and secondary annealing the cold rolled steel sheet.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Inventors: Hyun-Seok KO, Kyu-Seok HAN, Hyung-Ki PARK, Jin-Wook SEO, Jae-Soo LIM, Hyung Don JOO
  • Patent number: 11031162
    Abstract: Disclosed are an oriented electrical steel sheet and a manufacturing method thereof. An exemplary embodiment of the present invention provides a method of manufacturing an oriented electrical steel sheet, including: providing a slab including Si at 1.0 to 4.0 wt %, C at 0.1 to 0.4 wt %, and the remaining portion including Fe and other inevitably incorporated impurities; reheating the slab; producing a hot rolled steel sheet by hot rolling the slab; performing annealing of the hot rolled steel sheet; cold rolling the annealed hot rolled steel sheet; decarburizing and annealing the cold rolled steel sheet; cold rolling the decarburized and annealed steel sheet; and final annealing the cold rolled steel sheet.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: June 8, 2021
    Assignee: POSCO
    Inventors: Hyun-Seok Ko, Kyu-Seok Han, Hyung-Ki Park, Jin-Wook Seo, Jae-Soo Lim, Hyung Don Joo
  • Publication number: 20210130918
    Abstract: A grain-oriented electrical steel sheet according to an embodiment of the present includes Si at 1.0 wt % to 7.0 wt %, C at 0.005 wt % or less (excluding 0 wt %), In at 0.001 wt % to 0.5 wt %, and the remainder including Fe and other impurities unavoidably added thereto.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 6, 2021
    Inventors: Hyung Don JOO, Min Soo HAN, Hyung Ki PARK, Sang Woo LEE, Jin-Wook SEO
  • Patent number: 10907231
    Abstract: An oriented electrical steel sheet according to an exemplary embodiment of the present invention includes Si: 2.0 to 7.0%, C: 0.005% or less (excluding 0%), Al: 0.05% or less (excluding 0%), N: 0.005% or less (excluding 0%), S: 0.005% or less (excluding 0%), a content of each of Ba and Y or a sum thereof: 0.001 to 0.3%, and Fe and other unavoidable impurities as a balance by wt %.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 2, 2021
    Assignee: POSCO
    Inventors: Hyung Don Joo, Hyung Ki Park, Jin Wook Seo, Sang Woo Lee
  • Patent number: 10760141
    Abstract: An oriented electrical steel sheet includes Ba at about 0.005 wt % to about 0.5 wt % inclusive, Y at about 0.005 wt % to about 0.5 wt % inclusive, or a composite of Ba and Y at about 0.005 wt % to about 0.5 wt % inclusive, the remainder including Fe and impurities, based on 100 wt % of a total composition of a base steel sheet thereof.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: September 1, 2020
    Assignee: POSCO
    Inventors: Hyung Don Joo, Hyung-Ki Park, Jin-Wook Seo, Kyu-Seok Han, Jae-Soo Lim, Hyun-Seok Ko
  • Publication number: 20190024202
    Abstract: An oriented electrical steel sheet according to an exemplary embodiment of the present invention includes Si: 2.0 to 7.0%, C: 0.005% or less (excluding 0%), Al: 0.05% or less (excluding 0%), N: 0.005% or less (excluding 0%), S: 0.005% or less (excluding 0%), a content of each of Ba and Y or a sum thereof: 0.001 to 0.3%, and Fe and other unavoidable impurities as a balance by wt %.
    Type: Application
    Filed: December 22, 2016
    Publication date: January 24, 2019
    Inventors: Hyung Don JOO, Hyung Ki PARK, Jin Wook SEO, Sang Woo LEE
  • Publication number: 20180312936
    Abstract: The present invention relates to a composition for forming an insulation coating film of an oriented electrical steel sheet, including a first component (A) including a composite metal phosphate, a derivative thereof, or a mixture thereof, and a second component (B) including at least two colloidal silicas having different average particle diameters, a method for forming an insulation coating film using the same, and an oriented electrical steel sheet having an insulation coating film formed thereon.
    Type: Application
    Filed: December 22, 2015
    Publication date: November 1, 2018
    Inventors: Min Soo HAN, Hyung Don JOO, Hyung Ki PARK, Jae-Keun SHIN, Chang-Soo KIM
  • Publication number: 20170335425
    Abstract: An oriented electrical steel sheet includes Ba at about 0.005 wt % to about 0.5 wt % inclusive, Y at about 0.005 wt % to about 0.5 wt % inclusive, or a composite of Ba and Y at about 0.005 wt % to about 0.5 wt % inclusive, the remainder including Fe and impurities, based on 100 wt % of a total composition of a base steel sheet thereof.
    Type: Application
    Filed: December 16, 2014
    Publication date: November 23, 2017
    Inventors: Hyung Don JOO, Hyung-Ki PARK, Jin-Wook SEO, Kyu-Seok HAN, Jae-Soo LIM, Hyun-Seok KO
  • Publication number: 20170271061
    Abstract: Disclosed are an oriented electrical steel sheet and a manufacturing method thereof. An exemplary embodiment of the present invention provides a method of manufacturing an oriented electrical steel sheet, including: providing a slab including Si at 1.0 to 4.0 wt %, C at 0.1 to 0.4 wt %, and the remaining portion including Fe and other inevitably incorporated impurities; reheating the slab; producing a hot rolled steel sheet by hot rolling the slab; performing annealing of the hot rolled steel sheet; cold rolling the annealed hot rolled steel sheet; decarburizing and annealing the cold rolled steel sheet; cold rolling the decarburized and annealed steel sheet; and final annealing the cold rolled steel sheet.
    Type: Application
    Filed: December 8, 2014
    Publication date: September 21, 2017
    Inventors: Hyun-Seok KO, Kyu-Seok HAN, Hyung-Ki PARK, Jin-Wook SEO, Jae-Soo LIM, Hyung Don JOO
  • Patent number: 9603502
    Abstract: The present disclosure relates to a dishwasher, including a washing tub configured to provide a space for washing dishes; a supply tube configured to supply water into the washing tub; a motor configured to rotate the supply tube; a detachable rotating member in, on, attached to, or at an end of the supply tube, that rotates and interfaces with the supply tube; and a spin-dry tub on the rotating member, that rotates with the rotating member and spin-dries an object inside the spin-dry tub. Accordingly, a separate spin-dry function is added to the dishwasher, thereby maximizing spatial efficiency and hygienically and conveniently performing a spin-dry cycle or operation.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 28, 2017
    Assignee: Dongbu Daewoo Electronics Corporation
    Inventor: Hyung Ki Park
  • Publication number: 20150157183
    Abstract: The present disclosure relates to a dishwasher or other washing apparatus, a control method thereof, and a spin-dry control system therefor, including a sensor unit configured to detect a weight of one or more objects in a spin-dry tub, and an amount of eccentricity and a speed of the spin-dry tub; a driving unit configured to balance or rotate the spin-dry tub; and a control unit configured to determine an operation state of the driving unit according to information from the sensor unit. Accordingly, a separate spin-dry function can be added to the dishwasher or other washing apparatus to maximize spatial efficiency, and the dishwasher can control a spin-dry function with optimal efficiency by automatically detecting a change in weight of object(s) in the spin-dry tub and the speed of the spin-dry tub, thereby maximizing spin-dry efficiency.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 11, 2015
    Applicant: Dongbu Daewoo Electronics Corporation
    Inventor: Hyung Ki PARK
  • Publication number: 20150129002
    Abstract: The present disclosure relates to a dishwasher, including a washing tub configured to provide a space for washing dishes; a supply tube configured to supply water into the washing tub; a motor configured to rotate the supply tube; a detachable rotating member in, on, attached to, or at an end of the supply tube, that rotates and interfaces with the supply tube; and a spin-dry tub on the rotating member, that rotates with the rotating member and spin-dries an object inside the spin-dry tub. Accordingly, a separate spin-dry function is added to the dishwasher, thereby maximizing spatial efficiency and hygienically and conveniently performing a spin-dry cycle or operation.
    Type: Application
    Filed: December 20, 2013
    Publication date: May 14, 2015
    Applicant: Dongbu Daewoo Electronics Corporation
    Inventor: Hyung Ki PARK
  • Patent number: 7901670
    Abstract: Provided is a process for purifying human interferon beta from a recombinant human interferon beta-containing culture comprising performing affinity chromatography and cation exchange chromatography, wherein the affinity chromatography includes: adsorbing the interferon beta-containing culture to an equilibrated affinity chromatography column, followed by washing with an equilibration buffer solution; washing the column with a washing buffer solution A of pH 6.5-7.5 containing 30-60 wt % of propylene glycol and a washing buffer solution B of pH 6.5-7.5 containing 10-30 wt % of propylene glycol and 1-2M NaCl; and eluting a human interferon beta-containing fraction with a buffer solution of pH 6.5-7.5 containing 40-60 wt % of propylene glycol and 1-2M NaCl.
    Type: Grant
    Filed: December 4, 2004
    Date of Patent: March 8, 2011
    Assignee: CJ Cheiljedang Corporation
    Inventors: Ji Sook Park, Jong Sang Chung, Min Ji Baek, Jee Won Ahn, Ki Wan Kim, Hyung Ki Park, Dong Eok Lee, Myung Suk Oh
  • Patent number: 7780960
    Abstract: Provided is a process for purifying human interferon beta from a recombinant human interferon beta-containing culture comprising performing affinity chromatography and reversed-phase high-performance liquid chromatography (RP-HPLC), wherein the affinity chromatography includes: adsorbing the interferon beta-containing culture to an equilibrated affinity chromatography column, followed by washing with an equilibration buffer solution; washing the column with a washing buffer solution A of pH 6.5-7.5 containing 30-60 wt % of propylene glycol and a washing buffer solution B of pH 6.5-7.5 containing 10-30 wt % of propylene glycol and 1-2M NaCl; and eluting a human interferon beta-containing fraction with a buffer solution of pH 6.5-7.5 containing 40-60 wt % of propylene glycol and 1-2M NaCl.
    Type: Grant
    Filed: December 4, 2004
    Date of Patent: August 24, 2010
    Assignee: CJ Cheiljedang Corporation
    Inventors: Ji Sook Park, Jong Sang Chung, Min Ji Baek, Jee Won Ahn, Ki Wan Kim, Hyung Ki Park, Dong Eok Lee, Myung Suk Oh
  • Patent number: 7311903
    Abstract: The present invention relates to an amino acid-modified human interferon alpha isoform having at least one of the Asn-Xaa-Ser/Thr (N-X-S/T) sequence formed at a specific site so that glycosylation takes place at this site and a gene encoding the same, an expression vector comprising the gene, and a method for producing glycosylated human interferon alpha isoform by transforming or transfecting an eukaryotic cell with the expression vector, culturing the transfected or transformed cell and isolating the glycosylated human interferon alpha isoform from the culture, the glycosylated human interferon alpha isoform produced therefrom and a pharmaceutical composition comprising the same.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: December 25, 2007
    Assignee: CJ Corporation
    Inventors: Eun Jung Lee, Hyung Ki Park, Hyun Seok Kim, Ji Sook Park, Yeon Hyang Kim, Hyune Soo Lee, Hyung Kon Koh, Myung Suk Oh
  • Patent number: 5786579
    Abstract: Disclosed is a wave guide used in a microwave oven, by which superimposed high-frequency microwaves are radiated towards food to be heated, and distorted waves included in the high-frequency microwaves are removed. The wave guide has a housing provided with a magnetron, a mode transducer disposed in the housing so as to superimpose and distribute a high-frequency microwave radiated from the magnetron, and a differential mode absorber for absorbing a distorted wave included in the high-frequency microwave which has been passed through the mode transducer. The mode transducer includes a first hollow-frustuconical member welded to an inner wall of the housing, a second hollow-frustuconical member accommodated in the first hollow-frustuconical member, and a transmission line attached to an inner wall of the second hollow-frustuconical member.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: July 28, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Hyung-Ki Park
  • Patent number: 5747781
    Abstract: A microwave oven having a heater apparatus has an upper heater installed to an upper portion of a cooking chamber for transmitting heat toward the center of the cooking chamber. A bracket is fixed to a side plate of the cooking chamber and has a pair of lugs spaced apart from each other by roughly 60.degree. along the swinging direction of the upper heater. A bushing is fitted into the bracket to be rotatable therein, and is pierced with the upper heater along the rotating shaft line. A guiding plate formed with a groove is fixed to the bushing. A lower heater is installed to a bottom plate of the cooking chamber to be shaped as an alphabet "U," and a turntable is coated with a ceramic. Thus, the swinging angle of the upper heater is controlled to adjust a distance from food, and the upper plate of the cooking chamber is cleaned by easily swinging the upper heater. The lower heater bakes the lower side of food to consistently cook the food.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: May 5, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventors: Byeong-Jun Kim, Jae-Soo Kim, Sang-Kee Min, Byung-Nam Choi, Hyung-Ki Park
  • Patent number: 5742033
    Abstract: Disclosed is a wave guide having an improved structure and being used in a microwave oven, by which the food contained in a heating chamber is effectively heated. The wave guide has a housing attached to a side wall of the heating chamber, and has first, second, and third guide plates which are spaced at a predetermined distance apart from each other. The first guide plate has a first wave diffusing opening, the second guide plate has two second wave diffusing openings, and the third guide plate has four third wave diffusing openings. The second wave diffusing openings are off-set from the first wave diffusing opening. The third wave diffusing openings are off-set from the second wave diffusing openings. By the wave guide, superimposed high-frequency microwaves are radiated into the heating chamber, so the heating efficiency is improved and the cooking time is shortened. The microwave oven having the wave guide can prevent a waste of electrical power.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: April 21, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Hyung-ki Park