Patents by Inventor Seon-su Sin

Seon-su Sin 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).

  • Thinner composition, method of preparing the same and method of recovering the same
    Patent number: 7612028
    Abstract: A thinner composition is provided which includes about 60-80% by weight of propylene glycol mono-alkyl ether having a boiling point of T1° C., about 10-30% by weight of alkyl acetate having a boiling point of T2° C., and about 1-10% by weight of a solvent. The solvent has a boiling point of T3° C. and satisfies the equation (1). T2<T3<T2+30??(1).
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: November 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Ki Lee, Jin-Ho Ju, Hi-Kuk Lee, Seon-Su Sin, Kwang-Soo Lee, Jae-Woong Mun
  • Photoresist composition for organic layer of liquid crystal display, spin-less coating method thereof, fabrication method of organic layer pattern and liquid crystal display fabricated using the same
    Patent number: 7364833
    Abstract: The invention relates to a photoresist composition for an organic layer for a liquid crystal display, which may be used for a large-scale substrate, a spin-less coating method using the composition, a method for fabricating an organic layer pattern, and a liquid crystal display having the organic layer pattern. In particular, the liquid crystal display photoresist composition comprises an organic polymer resin having an average molecular weight in the range of about 2,000 to about 20,000, a mixed solvent of ethylene diglycol methylethyl ether (EDM) and a solvent having a vapor pressure lower than the EDM, and a photosensitizer.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: April 29, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yeong-beom Lee, Seon-su Sin
  • Thinner composition, method of preparing the same and method of recovering the same
    Publication number: 20060124596
    Abstract: A thinner composition is provided which includes about 60-80% by weight of propylene glycol mono-alkyl ether having a boiling point of T1° C., about 10-30% by weight of alkyl acetate having a boiling point of T2° C., and about 1-10% by weight of a solvent. The solvent has a boiling point of T3° C. and satisifes the equation (1).
    Type: Application
    Filed: December 5, 2005
    Publication date: June 15, 2006
    Inventors: Dong-Ki Lee, Jin-Ho Ju, Hi-Kuk Lee, Seon-Su Sin, Kwang-Soo Lee, Jae-Woong Mun
  • Photoresist composition for organic layer of liquid crystal display, spin-less coating method thereof, fabrication method of organic layer pattern and liquid crystal display fabricated using the same
    Publication number: 20050266339
    Abstract: The invention relates to a photoresist composition for an organic layer for a liquid crystal display, whch may beused for a large-scale substrate, a spin-less coating method using the composition, a method for fabricating an organic layer pattern, and a liquid crystal display having the organic layer pattern. In particular, the liquid crystal display photoresist composition comprises an organic polymer resin having an average molecular weight in the range of about 2,000 to about 20,000, a mixed solvent of ethylene diglycol methylethyl ether (EDM) and a solvent having a vapor pressure lower than the EDM, and a photosensitizer.
    Type: Application
    Filed: May 24, 2005
    Publication date: December 1, 2005
    Inventors: Yeong-beom Lee, Seon-su Sin