Patents by Inventor Young-sil Lee

Young-sil Lee 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: 20100136343
    Abstract: Disclosed are a composite composition comprising carbon nanotubes and a transparent conductive film using the composite composition. The composite composition comprises a solution of an ion conductive polymeric binder in a solvent and carbon nanotubes dispersed in the solution. The transparent conductive film is formed by coating a dispersion of carbon nanotubes in an ion conductive polymeric binder on a base film to allow the transparent conductive film to be electrically conductive as a whole. The composite composition can be used to form a transparent conductive film with excellent bending properties as well as high electrical conductivity and high transparency. Therefore, the composite composition can be applied to transparent electrodes for use in foldable flat panel displays.
    Type: Application
    Filed: May 11, 2009
    Publication date: June 3, 2010
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Youngkyu CHANG, Young Sil LEE, Young Jun LEE, Young Hee LEE
  • Publication number: 20090321687
    Abstract: Disclosed herein are an electrically conductive thermoplastic resin composition and a plastic article including the same. The electrically conductive thermoplastic resin composition comprises about 80 to about 99.9 parts by weight of a thermoplastic resin, about 0.1 to about 10 parts by weight of carbon nanotubes, about 0.1 to about 10 parts by weight of an impact modifier, based on a total of about 100 parts by weight of the thermoplastic resin and the carbon nanotubes, and about to about 10 parts by weight of conductive metal oxide, based on a total of about 100 parts by weight of the thermoplastic resin and the carbon nanotubes.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 31, 2009
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Tae Kyun KIM, Young Sil LEE, Young Kyu CHANG
  • Publication number: 20090298990
    Abstract: Disclosed herein are an electromagnetic wave shielding thermoplastic resin composition and a plastic article including the same. The electromagnetic wave shielding thermoplastic resin composition comprises about 100 parts by weight of a thermoplastic resin comprising a polycarbonate resin, a polyester resin, or a combination thereof, about 1 to about 30 parts by weight of stainless steel fiber, and about 0.01 to about 10 parts by weight of carbon nanotubes.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 3, 2009
    Applicant: Cheil Industries Inc.
    Inventors: Sang Wan KIM, Young Sil LEE
  • Publication number: 20090261303
    Abstract: Disclosed herein are an electrically conductive thermoplastic resin composition and a plastic article. The electrically conductive thermoplastic resin composition comprises about 80 to about 99% by weight of a thermoplastic resin, about 0.1 to about 10% by weight of carbon nanotubes and about 0.1 to about 10% by weight of an organo nanoclay.
    Type: Application
    Filed: June 26, 2009
    Publication date: October 22, 2009
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Byeong Yeol Kim, Young Sil Lee, Young Kyu Chang
  • Patent number: 7379691
    Abstract: A carrier removing device of a wet-type image forming apparatus, according to an embodiment of the present invention, comprises an intermediate transfer medium and a vaporizing unit. The intermediate transfer medium receives images from an image carrying medium. The vaporizing unit evaporates, at a low temperature, a liquid carrier saturating the intermediate transfer medium.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: May 27, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-Sil Lee
  • Publication number: 20070007706
    Abstract: A paper feeding device for an image forming apparatus includes a pick-up roller for picking up paper from a paper feeding cassette and for feeding the paper to a registration roller. The registration roller registers a leading end of a sheet of paper and compensates for skew of the paper by stopping to allow the leading end of the paper to contact the registration roller to form a paper curl and maintaining the paper curl. The paper feeding device does not require a feeding roller but instead controls the rotation of the pick-up roller to form the paper curl. Therefore, the paper feeding device is compact and can be used with a compact image forming apparatus.
    Type: Application
    Filed: March 27, 2006
    Publication date: January 11, 2007
    Inventor: Young-sil Lee
  • Patent number: 7058353
    Abstract: A paper detecting device to detect paper presence on a paper plate in a paper feeding cassette, and comprising a light-emitting device and a light-receiving sensor. In the paper feeding cassette, an end-fence is movably mounted, and at least one of the light-emitting device and the light-receiving sensor is mounted on a base of the end-fence to be covered by the stacked paper. Accordingly, before developing a new image, the complete consumption of the paper supply can be detected, and therefore, the toner can be saved.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: June 6, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-sil Lee, Kwang-ho No
  • Publication number: 20060115301
    Abstract: A carrier removing device of a wet-type image forming apparatus, according to an embodiment of the present invention, comprises an intermediate transfer medium and a vaporizing unit. The intermediate transfer medium receives images from an image carrying medium. The vaporizing unit evaporates, at a low temperature, a liquid carrier saturating the intermediate transfer medium.
    Type: Application
    Filed: October 7, 2005
    Publication date: June 1, 2006
    Inventor: Young-Sil Lee
  • Publication number: 20050141902
    Abstract: A paper detecting device to detect paper presence on a paper plate in a paper feeding cassette, and comprising a light-emitting device and a light-receiving sensor. In the paper feeding cassette, an end-fence is movably mounted, and at least one of the light-emitting device and the light-receiving sensor is mounted on a base of the end-fence to be covered by the stacked paper. Accordingly, before developing a new image, the complete consumption of the paper supply can be detected, and therefore, the toner can be saved.
    Type: Application
    Filed: July 29, 2004
    Publication date: June 30, 2005
    Inventors: Young-sil Lee, Kwang-ho No
  • Publication number: 20050100485
    Abstract: A device for filtering discharged air of a wet-type electrophotographic image forming apparatus capable of diffusing heat transmitted from a heater and an oxidation catalyst filter to prevent transformation of a casing of the device. The filtering device comprises a heater connected to a power unit of the image forming apparatus to generate heat. An oxidation catalyst filter is disposed adjacent to the heater to filter the discharged air through a chemical reaction with the discharged air. A filter casing holds the heater and the oxidation catalyst filter inside. A filtering device casing having the filter casing at a predetermined distance inside to form an air path through which the discharged air is drawn through a discharge path of the image forming apparatus.
    Type: Application
    Filed: August 10, 2004
    Publication date: May 12, 2005
    Inventors: Jong-tae Kim, Young-sil Lee, Eun-sang Park