Patents by Inventor Sug-Youn Chang

Sug-Youn Chang 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: 20190029929
    Abstract: According to the present invention, a peroxide combination is prepared using silica particles. Therefore, the stability of a peroxide may be improved, and the amount of water used may be appropriately adjusted, so that the peroxide combination may be suitably used as a component of a whitening patch. In addition, since no separate drying process is required, cost competitiveness may be secured.
    Type: Application
    Filed: August 10, 2016
    Publication date: January 31, 2019
    Inventor: Sug Youn Chang
  • Patent number: 9084654
    Abstract: The present disclosure relates to an interdental cleaning member and a manufacturing method thereof, and more particularly, to an interdental cleaning member and a manufacturing method thereof, which may easily remove food residues between teeth without damaging the gums.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: July 21, 2015
    Assignee: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Kyung-Sub Lee, Sung-Jin Kim, Jae-Hyun Ahn, Sug-Youn Chang
  • Patent number: 8966697
    Abstract: The present disclosure relates to an electric toothbrush, and more particularly, to an electric toothbrush, which has excellent vibration efficiency since vibrations of the vibration motor are directly transferred to the bristle holder, saves the battery power, reduces a size of the toothbrush, decreases the thickness of the head portion, allows the vibration motor to be stably fixed in a fixing groove formed at the upper surface of the head portion, and reduces noise.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: March 3, 2015
    Assignee: LG Household & Health Care Ltd.
    Inventors: Sung-Jin Kim, Sug-Youn Chang, Jae-Hyun Ahn, Kyung-Sub Lee
  • 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
  • Patent number: 8802062
    Abstract: Disclosed herein is a pair of dry type patches for teeth whitening, having a patch for upper teeth and a patch for lower teeth, in which the patch for upper teeth has a shape different from the patch for lower teeth, and each patch has a controlled width and shape such that the contact area of each patch with gums is minimized. In the patch for upper teeth, a central portion covering right and left upper central incisors is widest. In the patch for lower teeth, either portion covering right and left lower canine teeth is widest. Since the dry type patches covers all the portions of the teeth while minimizing the contact area with gums, no or little irritation is caused and wearability is excellent.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 12, 2014
    Assignee: LG Household & Healthcare Ltd.
    Inventors: Ji-Young Kim, Jong-Ho Kim, Sug-Youn Chang, Sei-Young Yun, Hae-Young Yang, Sang-Hoon Kwak
  • 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
  • Patent number: 8652446
    Abstract: Disclosed herein is a pair of dry type patches for teeth whitening, having a patch for upper teeth and a patch for lower teeth, in which the patch for upper teeth has a shape different from the patch for lower teeth, and each patch has a controlled width and shape such that the contact area of each patch with gums is minimized. In the patch for upper teeth, a central portion covering right and left upper central incisors is widest. In the patch for lower teeth, either portion covering right and left lower canine teeth is widest. Since the dry type patches covers all the portions of the teeth while minimizing the contact area with gums, no or little irritation is caused and wearability is excellent.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: February 18, 2014
    Assignee: LG Household & Healthcare Ltd.
    Inventors: Ji-Young Kim, Jong-Ho Kim, Sug-Youn Chang, Sei-Young Yun, Hae-Young Yang, Sang-Hoon Kwak
  • Patent number: 8647607
    Abstract: The present invention relates to a dry type tooth-whitening patch comprising peroxide as a tooth whitening agent. In particular, disclosed is a dry type tooth-whitening patch in which peroxide is contained, as a teeth whitening agent, in a matrix type adhesive layer. The adhesive layer includes, as a base polymer thereof, a hydrophilic glass polymer, which provides a strong adhesion to teeth while releasing the tooth whitening agent when hydrated on the enamel layers of teeth in the moist oral cavity. The dry type patch according to the present invention is convenient in use, as compared to wet type patches. Further, it exhibits a superior adhesion while being maintained in a state attached to the teeth for a lengthened period of time so as to assure an enough contact time between the whitening agent in the patch and stains on the teeth, thereby giving a sufficient whitening effect.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: February 11, 2014
    Assignee: LG Household & Health Care Ltd.
    Inventors: Ji-Young Kim, Jong-Ho Kim, Sug-Youn Chang, Sei-Young Yun
  • 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: 20130198987
    Abstract: The present disclosure relates to an interdental cleaning member and a manufacturing method thereof, and more particularly, to an interdental cleaning member and a manufacturing method thereof, which may easily remove food residues between teeth without damaging the gums.
    Type: Application
    Filed: May 2, 2011
    Publication date: August 8, 2013
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Kyung-Sub Lee, Sung-Jin Kim, Jae-Hyun Ahn, Sug-Youn Chang
  • Publication number: 20130117949
    Abstract: The present disclosure relates to an electric toothbrush, and more particularly, to an electric toothbrush, which has excellent vibration efficiency since vibrations of the vibration motor are directly transferred to the bristle holder, saves the battery power, reduces a size of the toothbrush, decreases the thickness of the head portion, allows the vibration motor to be stably fixed in a fixing groove formed at the upper surface of the head portion, and reduces noise.
    Type: Application
    Filed: April 7, 2011
    Publication date: May 16, 2013
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Sung-Jin Kim, Sug-Youn Chang, Jae-Hyun Ahn, Kyung-Sub Lee
  • Publication number: 20120134936
    Abstract: A tooth whitener is provided, including a water-in-oil (W/O) emulsion phase including: a discontinuous phase comprising a peroxide, a hydrophilic solvent, and a polyol, and a continuous phase comprising a glycerol monooleate, a polymer and a polyol, wherein the tooth whitener is flowable upon being applied to teeth and is solidified by the action of moisture after being applied to teeth, and then is adhered and fixed to teeth, and wherein the glycerol monooleate is in an amount of 15% to 95% by weight, based on total weight of the tooth whitener composition.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 31, 2012
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Sang-Hoon Kwak, Sei-Young Yun, Kyo-Tae Moon, Sang-Nyun Kim, Han-Soo Kim, Sug-Youn Chang
  • Patent number: 7862802
    Abstract: The present invention relates to a dry type tooth whitening patch comprising peroxide as a tooth whitening agent. In particular, disclosed is a dry type tooth whitening patch in which a peroxide is contained, as a teeth whitening agent, in a matrix type adhesive layer. The adhesive layer includes, as a base polymer thereof, a hydrophilic glass polymer which provides a strong adhesion to teeth while releasing the tooth whitening agent when hydrated on the enamel layers of teeth in the moist oral cavity. The dry type patch according to the present invention is convenient in use, as compared to wet type patches. Further, it exhibits a superior adhesion while being maintained in a state attached to the teeth for a lengthened period of time so as to assure an enough contact time between the whitening agent in the patch and stains on the teeth, thereby giving a sufficient whitening effect.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: January 4, 2011
    Assignee: LG Household & Health Care Ltd.
    Inventors: Ji-Young Kim, Jong-Ho Kim, Sug-Youn Chang, Sei-Young Yun
  • Patent number: 7785572
    Abstract: A dry type adhesive device for teeth whitening in which a peroxide tooth whitening agent is stabilized is disclosed. The dry type adhesive device for tooth whitening comprises a matrix type adhesive layer and a backing layer wherein the adhesive layer contains a peroxide as a teeth whitening agent and a hydrophilic glassy polymer as a base polymer so that the hydrophilic glassy polymer provides strong adhesion to teeth when hydrated at the enamel layer of the teeth in the moist oral cavity and the whitening agent is released. In particular, although the dry type adhesive device is touched with the hands or contact the skin during attaching to the teeth prior to hydration, no stickiness and releasing of the whitening agent takes place, thus being safe.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: August 31, 2010
    Assignee: LG Household and Health Care Ltd.
    Inventors: Ji-Young Kim, Jong-Ho Kim, Sug-Youn Chang, Sei-Young Yun, An-gi Choi
  • Publication number: 20080305168
    Abstract: Disclosed herein is an oral care composition that provides pleasant cooling sensation and easy delivery of an oral care active ingredient. The tablet-type oral care composition of the present invention is prepared by compressing porous plastic granules at a pressure of 500 kg/cm2 or less and undergoes in situ melting and gelling by saliva or water in the buccal cavity, or by chewing. Upon direct administration of the composition to the buccal cavity, the composition undergoes melting and gelling by water or saliva, or by chewing action, and works to maintain oral health via gargling or mouth washing. Therefore, the formulation of the present invention advantageously reduces inconvenience of conventional liquid or ointment-like oral care products and also provides easy portability.
    Type: Application
    Filed: February 8, 2007
    Publication date: December 11, 2008
    Inventors: Kyo-Tae Moon, Taek-Kyun Kang, Jae-Hyun Ahn, Sang-Jin Kang, Sang-Nyun Kim, Sug-Youn Chang, Moon-Jung Rang
  • Publication number: 20080193392
    Abstract: Disclosed herein is a tooth whitener using glycerol monooleate. The tooth whitener is a composition that exhibits teeth whitening effects when being applied to teeth. Specifically, the tooth whitener comprises a glycerol monooleate, a polyol, a polymer, a peroxide and a hydrophilic solvent, and has a W/O emulsion phase. The tooth whitener is flowable before being applied to teeth and is spreadable when being applied to teeth. In addition, the tooth whitener is solidified by the action of moisture, such as saliva, after being applied to teeth, and can thus be adhered and fixed to the teeth. Further-more, changes in viscosity of the tooth whitener with varying temperature can he minimized and the release rate of the whitening ingredient can he controlled by the addition of polyol.
    Type: Application
    Filed: March 17, 2006
    Publication date: August 14, 2008
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Sang-Hoon Kwak, Sei-Young Yun, Han-Soo Kim, Sug-Youn Chang, Sang-Nyun Kim, Kyo-Tae Moon
  • Publication number: 20060193794
    Abstract: The present invention relates to a dry type tooth-whitening patch comprising peroxide as a tooth whitening agent. In particular, disclosed is a dry type tooth-whitening patch in which peroxide is contained, as a teeth whitening agent, in a matrix type adhesive layer. The adhesive layer includes, as a base polymer thereof, a hydrophilic glass polymer, which provides a strong adhesion to teeth while releasing the tooth whitening agent when hydrated on the enamel layers of teeth in the moist oral cavity. The dry type patch according to the present invention is convenient in use, as compared to wet type patches. Further, it exhibits a superior adhesion while being maintained in a state attached to the teeth for a lengthened period of time so as to assure an enough contact time between the whitening agent in the patch and stains on the teeth, thereby giving a sufficient whitening effect.
    Type: Application
    Filed: April 28, 2006
    Publication date: August 31, 2006
    Inventors: Ji-Young Kim, Jong-Ho Kim, Sug-Youn Chang, Sei-Young Yun
  • Publication number: 20060193793
    Abstract: Disclosed herein is a pair of dry type patches for teeth whitening, having a patch for upper teeth and a patch for lower teeth, in which the patch for upper teeth has a shape different from the patch for lower teeth, and each patch has a controlled width and shape such that the contact area of each patch with gums is minimized. In the patch for upper teeth, a central portion covering right and left upper central incisors is widest. In the patch for lower teeth, either portion covering right and left lower canine teeth is widest. Since the dry type patches covers all the portions of the teeth while minimizing the contact area with gums, no or little irritation is caused and wearability is excellent.
    Type: Application
    Filed: April 28, 2006
    Publication date: August 31, 2006
    Inventors: Ji-Young Kim, Jong-Ho Kim, Sug-Youn Chang, Sei-Young Yun, Hae-Young Yang, Sang-Hoon Kwak
  • Patent number: 7081258
    Abstract: The present invention relates to a composition for promoting hair growth. More particularly, the present invention comprises a component for inhibiting 5?-reductase activity, a functional component of cell activity, and an expansion component of peripheral blood vessels. A composition for promoting hair growth of the present invention has a superior effect on hair growth.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: July 25, 2006
    Assignee: LG Household & Health Care Ltd.
    Inventors: Seong-Lok Hwang, In-Byeong Yoon, Min-Ho Lee, Sug-Youn Chang, Moon-Jeong Rang, Ho-Jeong Ahn
  • Patent number: 6946142
    Abstract: The present invention relates to a dry type teeth whitening patch with a multi-layer structure of three or more layers. More particularly, in the dry type patch, a contact adhesive layer substantially free of peroxide comprises a hydrophilic glass polymer as a base polymer so that it provides substantial adhesive strength when hydrated by water, an active material reservoir layer comprises peroxide as a teeth whitening agent, and a backing layer which is impermeable to water. The dry type patch of the present invention has superior teeth whitening effect and excellent peroxide stability at a high temperature since the peroxide-containing layer is covered and protected by other layers.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: September 20, 2005
    Assignee: LG Household & Healthcare Ltd.
    Inventors: Sug-Youn Chang, Ji-Young Kim, Jong-Ho Kim, Sei-Young Yun