Patents by Inventor Sang-Ho Seol

Sang-Ho Seol 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: 11135165
    Abstract: The present invention provides a suspension comprising aluminum hydroxide and magnesium hydroxide and a method of preparing the same. The aqueous suspension composition according to the present invention ensures an excellent sedimentation rate by using a mixed suspending agent with a specific composition, so that insoluble aluminum hydroxide and magnesium hydroxide do not easily settle, do not form a cake, and are easily redispersed. Since the aqueous suspension composition having an excellent sedimentation rate has not only physical stability, but also forms a homogeneous dispersion system, the reproducibility or effectiveness of bioavailability may be ensured. In addition, the aqueous suspension composition according to the present invention provides an excellent texture, and thus patient compliance increases.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: October 5, 2021
    Assignees: Daewoong Pharmaceutical Co., Ltd., Liaoning Daewoong Fharmaceutcal Co., Ltd.
    Inventors: Ye Chang, Qing Ri Li, Sang Ho Seol, Tie Li, Chao Tong
  • Publication number: 20200113826
    Abstract: The present invention provides a suspension comprising aluminum hydroxide and magnesium hydroxide and a method of preparing the same. The aqueous suspension composition according to the present invention ensures an excellent sedimentation rate by using a mixed suspending agent with a specific composition, so that insoluble aluminum hydroxide and magnesium hydroxide do not easily settle, do not form a cake, and are easily redispersed. Since the aqueous suspension composition having an excellent sedimentation rate has not only physical stability, but also forms a homogeneous dispersion system, the reproducibility or effectiveness of bioavailability may be ensured. In addition, the aqueous suspension composition according to the present invention provides an excellent texture, and thus patient compliance increases.
    Type: Application
    Filed: April 12, 2018
    Publication date: April 16, 2020
    Applicants: Daewoong Pharmaceutical Co., Ltd., Liaoning Daewoong Pharmaceutical Co,. Ltd.
    Inventors: Ye CHANG, Qing Ri LI, Sang Ho SEOL, Tie LI, Chao TONG
  • Publication number: 20200046762
    Abstract: The present invention relates to a suspension comprising smectite, and the suspension of the present invention comprises both a polymeric suspending agent and a low molecular suspending agent, and thus exhibits high dispersibility and sinking rate, ease of administration due to not high viscosity of a formulation, enhanced drug compliance while taking the formulation, and high preference. In addition, the suspension of the present invention enables uniform dispersion in preparation thereof, thus exhibiting ease of preparation and excellent efficiency, and accordingly, has an excellent effect on reducing a defect rate in the production of a suspension preparation.
    Type: Application
    Filed: April 12, 2018
    Publication date: February 13, 2020
    Applicants: Daewoong Pharmaceutical Co., Ltd., Liaoning Daewoong Pharmaceutical Co., Ltd.
    Inventors: Ye CHANG, Qing Ri LI, Sang Ho SEOL, Tie LI, Chao TONG
  • Patent number: 8007218
    Abstract: The present invention is related to a method for transferring substrates. The method comprise simultaneously transferring two substrates, by means of a transfer unit, between first support plates disposed to be vertically spaced apart from each other and second support plates arranged abreast in a lateral direction. The transfer unit comprises a top blade and a bottom blade converted to a folded state where they are vertically disposed to face each other and an unfolded state where they rotate at a preset angle in opposite directions. The transfer unit place/take a substrate on/out of the first support plates under the folded state and place/take a substrate on/out of the second support plates under the unfolded state.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: August 30, 2011
    Assignee: PSK Inc.
    Inventors: Dong-Seok Park, Sang-Ho Seol
  • Publication number: 20090280001
    Abstract: The present invention is related to a method for transferring substrates. The method comprise simultaneously transferring two substrates, by means of a transfer unit, between first support plates disposed to be vertically spaced apart from each other and second support plates arranged abreast in a lateral direction. The transfer unit comprises a top blade and a bottom blade converted to a folded state where they are vertically disposed to face each other and an unfolded state where they rotate at a preset angle in opposite directions. The transfer unit place/take a substrate on/out of the first support plates under the folded state and place/take a substrate on/out of the second support plates under the unfolded state.
    Type: Application
    Filed: June 30, 2009
    Publication date: November 12, 2009
    Inventors: Dong-Seok Park, Sang-Ho Seol
  • Publication number: 20080175694
    Abstract: The present invention is related to a method for transferring substrates. The method comprise simultaneously transferring two substrates, by means of a transfer unit, between first support plates disposed to be vertically spaced apart from each other and second support plates arranged abreast in a lateral direction. The transfer unit comprises a top blade and a bottom blade converted to a folded state where they are vertically disposed to face each other and an unfolded state where they rotate at a preset angle in opposite directions. The transfer unit place/take a substrate on/out of the first support plates under the folded state and place/take a substrate on/out of the second support plates under the unfolded state.
    Type: Application
    Filed: August 21, 2007
    Publication date: July 24, 2008
    Inventors: Dong-Seok Park, Sang-Ho Seol
  • Publication number: 20080008569
    Abstract: A substrate transfer apparatus includes first and second blades configured for supporting a substrate at different heights, respectively; an arm part connected to the first and second blades to move the first and second blades; and a drive unit configured for driving the first and second blades and the arm part, wherein the first and second blades are folded or unfolded while revolving on the same (single) axis of the arm part. According to the substrate transfer apparatus, a substrate processing throughput increases relative to a system area and time required for transferring and processing a substrate is reduced.
    Type: Application
    Filed: January 19, 2007
    Publication date: January 10, 2008
    Inventor: Sang-Ho Seol