Patents by Inventor Jung-Jin Choi

Jung-Jin Choi 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).

  • Patent number: 11054137
    Abstract: Provided is a combustion nozzle including a center cylinder having a cylinder shape, a middle cylinder coaxially disposed with the center cylinder and surrounding the center cylinder, an outer cylinder coaxially disposed with the middle cylinder and surrounding the middle cylinder, and a perforated plate disposed inside the center cylinder to create turbulent flow therethrough. In addition, the combustion nozzle further includes inner vanes disposed between the center cylinder and the middle cylinder and outer vanes disposed between the middle cylinder and the outer cylinder.
    Type: Grant
    Filed: July 22, 2018
    Date of Patent: July 6, 2021
    Inventor: Jung Jin Choi
  • Patent number: 10890328
    Abstract: A transition piece can include: an inner transition piece including an inlet and an outlet; an outer transition piece surrounding the inner transition piece with a flow passage; an outlet fin-pin flow guide disposed on the inner transition piece and located closer to the outlet than the inlet; a first bottom fin disposed at a bottom portion of the inner transition piece; and a second bottom fin disposed at the bottom portion of the inner transition piece, wherein the first bottom fin and the second bottom fin are arranged to be inclined to each other at an acute angle.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 12, 2021
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Jung Jin Choi, Yunyoung Doh, Donggon Lee
  • Publication number: 20200173294
    Abstract: A transition piece can include: an inner transition piece including an inlet and an outlet; an outer transition piece surrounding the inner transition piece with a flow passage; an outlet fin-pin flow guide disposed on the inner transition piece and located closer to the outlet than the inlet; a first bottom fin disposed at a bottom portion of the inner transition piece; and a second bottom fin disposed at the bottom portion of the inner transition piece, wherein the first bottom fin and the second bottom fin are arranged to be inclined to each other at an acute angle.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 4, 2020
    Inventors: JUNG JIN CHOI, YUNYOUNG DOH, DONGGON LEE
  • Publication number: 20190137103
    Abstract: Provided is a combustion nozzle including a center cylinder having a cylinder shape, a middle cylinder coaxially disposed with the center cylinder and surrounding the center cylinder, an outer cylinder coaxially disposed with the middle cylinder and surrounding the middle cylinder, and a perforated plate disposed inside the center cylinder to create turbulent flow therethrough. In addition, the combustion nozzle further includes inner vanes disposed between the center cylinder and the middle cylinder and outer vanes disposed between the middle cylinder and the outer cylinder.
    Type: Application
    Filed: July 22, 2018
    Publication date: May 9, 2019
    Inventor: Jung Jin CHOI
  • Patent number: 8882853
    Abstract: The present invention relates to a solvent for cleaning textiles or clothes. The present invention provides a solvent for cleaning which has a specified formula that is safe on the human body and environment, as well as good cleaning ability against oil-based and water-based contaminants and can be quickly dried. The solvent of the present invention and a composition comprising the same can be effectively used to water clean or dry clean textiles or clothes at home.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 11, 2014
    Assignee: LG Household & Health Care Ltd.
    Inventors: Seong-Kil Son, Kyoung-Hee Oh, Hyo-Seon Kim, Jung-Jin Choi, Sug-Youn Chang
  • Publication number: 20140066521
    Abstract: The present invention relates to an antibacterial and/or preserving composition which contains 3-butoxy-1,2-propanediol as a preserving agent. The antibacterial or preserving composition according to the present invention has an excellent resistance to microorganisms and has an excellent moisturizing effect, and hardly causes skin troubles.
    Type: Application
    Filed: November 4, 2011
    Publication date: March 6, 2014
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Min-Ji Gu, Jung-Jin Choi, Gug-In Jeong, Sug-Youn Chang
  • Publication number: 20130345107
    Abstract: The present invention relates to a solvent for cleaning textiles or clothes. The present invention provides a solvent for cleaning which has a specified formula that is safe on the human body and environment, as well as good cleaning ability against oil-based and water-based contaminants and can be quickly dried. The solvent of the present invention and a composition comprising the same can be effectively used to water clean or dry clean textiles or clothes at home.
    Type: Application
    Filed: December 15, 2011
    Publication date: December 26, 2013
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Seong-Kil Son, Kyoung-Hee Oh, Hyo-Seon Kim, Jung-Jin Choi, Sug-Youn Chang
  • Publication number: 20090121976
    Abstract: Wall charges of a turn-off cell selected from among a plurality of discharge cells are erased by applying an address voltage to a third electrode corresponding to the turn-off cell in an address period, and first and second pulse strings are respectively applied to first electrodes and second electrodes in a sustain period, where the first pulse string alternates between a first voltage and a second voltage higher than the first voltage, and the second pulse string has the same pattern as, but a different alternating timing from, the first pulse string. The sustain period includes an overlapping duration in which voltages of the first and second pulse strings are simultaneously higher than the first voltage.
    Type: Application
    Filed: October 22, 2008
    Publication date: May 14, 2009
    Inventors: Youn-Kyoung Kim, Jang-Ho Moon, Jung-Jin Choi, Hyun Kang
  • Publication number: 20090115764
    Abstract: A method of driving a plasma display using a frame having a plurality of weighted subfields includes applying overlapping sustain pulses to first and second electrodes of the display during a sustain period of at least one subfield in the frame, and applying at least one non-overlapping sustain pulse to the first and second electrodes during the sustain period.
    Type: Application
    Filed: October 6, 2008
    Publication date: May 7, 2009
    Inventors: Jang-Ho Moon, Jung-Jin Choi, Youn-Kyoung Kim, Hyun Kang
  • Publication number: 20090085841
    Abstract: A plasma display, a controller therefor and a method of driving determines a total number of sustain pulses according to a screen load ratio, and allocates sustain pulses to each subfield according to a weight value of that subfield. A ratio of overlap sustain pulses to non-overlap sustain pulses is determined according to the weight value of each subfield, and the overlap and non-overlap sustain pulses are arranged according to the determined ratio. The arranged sustain pulses are applied to a plurality of first and second electrodes that perform a display operation during a sustain period.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 2, 2009
    Inventors: Jung-Jin Choi, Jang-Ho Moon, Youn-Kyoung Kim, Hyun Kang
  • Publication number: 20090009499
    Abstract: A plasma display, a controller therefor and a method of driving determines a screen load ratio from a plurality of video signals input during one frame, and determines a total number of sustain pulses according to the screen load ratio. A ratio of overlap sustain pulses to non-overlap sustain pulses is determined according to a first load ratio, and the overlap and non-overlap sustain pulses are arranged according to the determined ratio. The first load ratio may be the screen load ratio or a display load ratio. The arranged sustain pulses are applied to a plurality of first and second electrodes that perform a display operation during a sustain period.
    Type: Application
    Filed: August 5, 2008
    Publication date: January 8, 2009
    Inventors: Jang-Ho Moon, Jung-Jin Choi, Youn-Kyoung Kim, Hyun Kang
  • Publication number: 20080284683
    Abstract: In a plasma display device, one frame is divided into a plurality of subfields, each having a weight, a first subfield to which more than a reference number of sustain pulses are allocated among the plurality of subfields is detected, at least N first sustain pulses are applied to the plasma display device during a sustain period of the first subfield, and at least M second sustain pulses are applied to the plasma display device during a sustain period of the first subfield. The first and second sustain pulses respectively have a high level voltage and a low level voltage, and a first period during which the first sustain pulse is changed from the low level voltage to the high level voltage is longer than a second period during which the second sustain pulse is changed from the low level voltage to the high level voltage.
    Type: Application
    Filed: April 11, 2008
    Publication date: November 20, 2008
    Inventors: Sang-Young Lee, Kwang- Ho Jin, Jung-Jin Choi
  • Publication number: 20080186257
    Abstract: A method of driving (a plasma display device having a first electrode and a second electrode, a frame for display being divided into a plurality of subfields) includes: determining a number of sustain discharge pulses to be allocated to the subfields, respectively; and applying to the first electrode or the second electrode, during a sustain period for a given one of the subfields when the corresponding allocated number of sustain discharge pulses is greater than a reference number, a first quantity of first sustain discharge pulses each having a first cycle and a second quantity of second sustain discharge pulses each having a second cycle, the second cycle being different from the first cycle, and the first quantity of first sustain discharge pulses relating to the reference number.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 7, 2008
    Inventors: Jung-Jin Choi, Kwang-Ho Jin, Sang-Young Lee
  • Publication number: 20080170002
    Abstract: A method of driving a Plasma Display Panel (PDP) while improving a brightness saturation phenomenon that is caused by an increase in the total number of sustain discharge pulses. A sustain discharge is performed by a plurality of first and second electrodes, a number of sustain discharge pulses for a subfield is provided based on a rate of load of an input signal, and first and second voltages are alternately and respectively supplied to the first and second electrodes in a sustain period according to the provided number of the sustain discharge pulses, the second voltage being greater than the first voltage. A duration in which the first voltage is increased to the second voltage is inversely proportional to the number of sustain discharge pulses for the subfield.
    Type: Application
    Filed: December 13, 2007
    Publication date: July 17, 2008
    Inventors: Sang-Young Lee, Kwang-Ho Jin, Sun-Kyung Ahn, Jung-Jin Choi
  • Publication number: 20080111495
    Abstract: Provided is an energy recovery unit of a display panel having a panel capacitor. The panel capacitor is formed between any two electrodes of the display panel. The energy recovery unit includes an energy storage unit that stores charges transferred from the panel capacitor. The energy storage unit includes a first storage device that stores charges transferred from the panel capacitor, and a second storage device that additionally stores charges transferred from the panel capacitor. The energy storage unit further includes a current ripple reduction device that reduces current ripple generated in the energy recovery unit. The current ripple device is coupled to both of the first and the second storage devices.
    Type: Application
    Filed: January 26, 2007
    Publication date: May 15, 2008
    Inventors: Sun-Kyung Ahn, Kwang-Ho Jin, Sang-Young Lee, Jung-Jin Choi
  • Publication number: 20050215456
    Abstract: The present invention relates to a method for preparing monoglyceride sulfonate that is useful for a cleansing agent for a human body, economically in a large amount, from an inexpensive fatty acid using a convenient manufacturing unit. The present invention also provides a soft soap composition comprising monoglyceride sulfonate and a fatty acid soap, which has superior molding and stamping workability, softness, smoothness, foamability, and moisturizing ability. The present invention also provides a method for preparing a salt-containing soft soap using the fatty acid used for preparation of the monoglyceride sulfonate, which contains a lot of salt, so that is softens skin, easily removes waste materials, prevents irritation, promotes blood circulation, and prevents depilation and dandruff.
    Type: Application
    Filed: March 28, 2003
    Publication date: September 29, 2005
    Inventors: Je-Kwon Goo, Soo-Gyu Choi, Kyeong-Woo Hong, Joo-Young Oh, Moon-Jeong Rang, Yeo-Kyung Yoon, Tae-Sung Kim, Jung-Jin Choi
  • Patent number: 6599869
    Abstract: The present invention relates to a combination soap bar composition containing monoglyceride sulfonates and a method for manufacturing the same. A combination bar composition containing monoglyceride sulfonates of the present invention comprises fatty acid based toilet bars and monoglyceride sulfonates of the following General Formula 1: where R is an alkyl having 7 to 21 carbon atoms, and M is sodium, potassium, triethanolamine, or ammonium. A combination bar composition containing monoglyceride sulfonates of the present invention has good general physical properties such as soap softness, etc. and very good moisturization properties and feel during usage even after repeated uses.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: July 29, 2003
    Assignee: LG Chemical Ltd
    Inventors: Je-Kwon Goo, Young-Ho Choi, Moon-Jeong Rang, Tae-Seong Kim, Tae-Kyung Huh, Jung-Jin Choi, Ho-Jeong Ahn
  • Publication number: 20020142926
    Abstract: The present invention relates to a combination soap bar composition containing monoglyceride sulfonates and a method for manufacturing the same.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 3, 2002
    Inventors: Je-Kwon Goo, Young-Ho Choi, Moon-Jeong Rang, Tae-Seong Kim, Tae-Kyung Huh, Jung-Jin Choi, Ho-Jeong Ahn
  • Publication number: 20020098995
    Abstract: The present invention relates to a combination soap bar composition containing monoglyceride sulfonates and a method for manufacturing the same.
    Type: Application
    Filed: December 3, 1999
    Publication date: July 25, 2002
    Inventors: JE-KWON GOO, YOUNG-HO CHOI, MOON-JEONG RANG, TAE-SEONG KIM, TAE-KYUNG HUH, JUNG-JIN CHOI, HO-JEONG AHN
  • Patent number: 6413922
    Abstract: The present invention relates to a combination soap bar composition containing monoglyceride sulfonates and a method for manufacturing the same. A combination bar composition containing monoglyceride sulfonates of the present invention comprises fatty acid based toilet bars and monoglyceride sulfonates of the following General Formula 1: where R is an alkyl having 7 to 21 carbon atoms, and M is sodium, potassium, triethanolamine, or ammonium.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: July 2, 2002
    Assignee: LG Chemical Ltd.
    Inventors: Je-Kwon Goo, Young-Ho Choi, Moon-Jeong Rang, Tae-Seong Kim, Tae-Kyung Huh, Jung-Jin Choi, Ho-Jeong Ahn