Patents by Inventor Kun Cho

Kun Cho 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: 20070031713
    Abstract: A high temperature fuel cell system having a cooling apparatus, including: a fuel cell stack including a plurality of membrane electrode assemblies (MEAs) each having an anode electrode and a cathode electrode on opposing surfaces of an electrolyte membrane containing acid and a plurality of conductive plates contacting each electrode; an anode inlet line, which is connected to the fuel cell stack, and which supplies a hydrogen containing gas to the anode electrode; an anode outlet line, which is connected to the fuel cell stack, and which discharges byproducts produced at the anode electrode along with un-reacted hydrogen containing gas; a cathode inlet line, which is connected to the fuel cell stack, and which supplies oxygen to the cathode electrode; a cathode outlet line, which is connected to the fuel cell stack, and which discharges byproducts produced at the cathode electrode along with un-reacted oxygen; a cooling apparatus, which is installed at the anode inlet line, and which reduces a temperature o
    Type: Application
    Filed: May 31, 2006
    Publication date: February 8, 2007
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Chung-kun Cho, Dong-kwan Kim, Tae-won Song
  • Publication number: 20070020502
    Abstract: A high temperature fuel cell system includes upper and lower sheet gaskets including inner portions respectively covering an extending portion of the electrolyte membrane and outer portions combined with each other, wherein the extending portion of the electrolyte membrane is exposed from the electrodes, rubber gaskets that are disposed on the outer portions of the sheet gaskets seal a space between the conductive plates and the sheet gaskets, and an adhesive seals the outer portions of the lower sheet gasket and upper sheet gasket, and wherein ends of the inner portions of the upper and lower sheet gaskets are respectively disposed between edges of the electrodes and the electrolyte membrane.
    Type: Application
    Filed: July 21, 2006
    Publication date: January 25, 2007
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Chung-kun Cho, Jan-gi Kim
  • Patent number: 7090840
    Abstract: The present invention relates to novel lactic microorganism, method for preparation and uses thereof. Particularly, the present invention relates to novel Lactobacillus paracasei strain (Lactobacillus paracasei subsp. paracasei CSK 01) which is prepared by the process comprising the steps: (1) administering lactic bacteria derived from gastric mucus of pig to patients of gastritis and enteritis; (2) separating lactic bacteria from the patients' feces again after their complete recovery; and (3) identifying the bacteria strain by performing 16S rRNA sequencing and RAPD polymerase chain reaction. The Lactobacillus strain of the present invention can attach to and proliferate on gastric and intestinal mucosa, resist to acidic and bilious conditions outstandingly and have excellent antibacterial properties. Therefore, the Lactobacillus strain and its antibacterial substance can be utilized widely to develop new drugs, functional food, health promoting additives and the like.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: August 15, 2006
    Inventor: Seong-Kun Cho
  • Publication number: 20060172170
    Abstract: A polymer electrolyte membrane includes a poly(benzoxazole) polymer doped with at least one acid. The polymer electrolyte membrane is manufactured by impregnating poly(benzoxazole) with an acid and has better ionic conductivity at high temperatures and better mechanical properties than a conventional poly(benzoxazole) polymer electrolyte membrane. In addition, the polymer electrolyte membrane has equivalent thermal stability to a conventional polymer electrolyte membrane.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 3, 2006
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Chung-kun Cho, Doo-weon Lee, Hee-young Sun
  • Publication number: 20060033996
    Abstract: An optical pickup apparatus having laser light sources emit a first light beam having a relatively shorter wavelength for a DVD and a second light beam having a longer wavelength for a CD-R, an objective lens having a focal length of an information recording surface in the DVD, an optical path control unit controls the light beams so that the light beam emitted from one of the laser light sources is directed to the objective lens and the light output from the objective lens is directed to the optical detection unit, and a phase shift unit between the optical path control unit and the objective lens and which shifts a phase of the second light to reduce the size of a beam spot which is formed the information recording surface in the CD-R.
    Type: Application
    Filed: October 27, 2005
    Publication date: February 16, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jang Yoo, Chul Lee, Chong Chung, Pyong Seong, Kun Cho, Hyun Choi, Yong Lee, Tae Kim, No Park
  • Publication number: 20050244715
    Abstract: Disclosed is a lithium secondary battery including a positive electrode including a positive active material; a negative electrode including a negative active material; a separator interposed between the positive and negative electrodes; and an electrolyte, where an alkaline metal powder layer is formed by dispersion coating on a surface of at least one of the positive and negative electrodes and the separator.
    Type: Application
    Filed: April 26, 2005
    Publication date: November 3, 2005
    Inventors: Chung-Kun Cho, Sang-Mock Lee, Young-Gyoon Ryu, Seung-Sik Hwang, Jea-Woan Lee, Yoshiaki Nitta, Joon-Sup Kim, Sung-Soo Kim, Jae-Gu Yoon
  • Patent number: 6938116
    Abstract: A flash memory management method is provided. According to the method, when a request to write the predetermined data to a page to which data has been written is made, the predetermined data is written to a log block corresponding to a data block containing the page. When a request to write the predetermined data to the page again is received, the predetermined data is written to an empty free page in the log block. Even if the same page is requested to be continuously written to, the management method allows this to be processed in one log block, thereby improving the effectiveness in the use of flash memory resources.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: August 30, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bum-soo Kim, Gui-young Lee, Jong-min Kim, Ji-hyun In, Je-sung Kim, Sam-hyuk Noh, Sang-lyul Min, Dong-hee Lee, Jae-yong Jeong, Yoo-kun Cho, Jong-moo Choi
  • Publication number: 20050176093
    Abstract: Disclosed is a method of analyzing mass of the phosphoproteins or phosphopeptides and of analyzing phosphorylated positions at a phosphoprotein or phosphopeptide, comprising the steps of: 1) dephosphorylating at least one Ser and/or Thr residue of the phosphoprotein or phosphopeptide; 2) tagging the dephosphorylated amino acid residues with a tag having a R-L-G moiety wherein R is a nucleophilic functional group that selectively bind with dephosphorylated amino acid residues, G is selected from the group consisting of guanidine moiety or protected guanidine moiety such as a mono-N-protected guanidino group, a di-N,N?-protected guanidino group and an N?-protected guanidino group, and L is a linker linking the R and the G; and 3) subjecting the tagged proteins or peptides to mass spectrometry. The method is capable of precisely analyzing mass of phosphoproteins of trace amounts as well as positions of phosphoryated amino acids.
    Type: Application
    Filed: April 21, 2005
    Publication date: August 11, 2005
    Applicant: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Yeong Hee AHN, Jong Shin YOO, Jin Young KIM, Kun CHO
  • Publication number: 20050118507
    Abstract: The present invention is related to a lithium anode, a method of the manufacturing the same and a battery using the anode. The lithium anode comprises a metal layer (or alloy layer) that is inert to lithium and a metal layer (or alloy layer) that is reactive with lithium. The two layers may form a temporary protective layer on the lithium surface, thus providing a smooth surface. By obtaining the smooth surface, an upper polymer layer and an inorganic layer may be deposited without any difficulty and the adhesive force may be strong. Thus, the lithium anode according to the present invention has superior cycling characteristics and improved storage characteristics.
    Type: Application
    Filed: November 18, 2004
    Publication date: June 2, 2005
    Inventors: Vladimir Guterman, Chung-Kun Cho, Sang-Mock Lee
  • Publication number: 20050089759
    Abstract: Disclosed is a rechargeable lithium polymer battery comprising a negative electrode including a negative active material layer deposited on a substrate, a positive electrode including a positive active material; and a polymer electrolyte including a lithium salt, an organic solvent, and a polymer.
    Type: Application
    Filed: October 21, 2004
    Publication date: April 28, 2005
    Inventors: Duck-Chul Hwang, Yun-Suk Choi, Chung-Kun Cho, Sang-Mock Lee
  • Publication number: 20050084760
    Abstract: Disclosed is a rechargeable lithium ion battery including a positive electrode comprising a first current collector and a positive active material layer on the first current collector; a negative electrode comprising a second current collector and a negative active material layer on the second current collector; and an electrolyte comprising a non-aqueous organic solvent and a lithium salt. At least one of the first and the second current collectors includes a rigid polymer film with a metal deposited on the rigid polymer film.
    Type: Application
    Filed: September 24, 2004
    Publication date: April 21, 2005
    Inventors: Duck-Chul Hwang, Yun-Suk Choi, Zin Park, Jong-Ki Lee, Jea-Woan Lee, Chung-Kun Cho
  • Publication number: 20050079420
    Abstract: Provided is a method of preparing a lithium metal anodeincluding forming a current collector on a substrate that includes a release component; depositing a lithium metal on the current collector; and releasing the current collector with the deposited lithium metal from the substrate. The method may produce a lithium metal anode with a clean lithium surface and a current collector with a small thickness. The lithium metal anode may be used to increase the energy density of a battery.
    Type: Application
    Filed: August 18, 2004
    Publication date: April 14, 2005
    Inventors: Chung-Kun Cho, Duck-Chul Hwang, Sang-Mock Lee, Seung-Sik Hwang
  • Publication number: 20050069775
    Abstract: A rechargeable lithium battery includes a positive electrode having a positive active material to reversibly intercalate and deintercalate lithium ions, a negative electrode having a negative active material, and an electrolyte, wherein an arithmetic mean Ra of a surface roughness of the positive electrode is 155 to 419 nm, and an arithmetic mean Ra of a surface roughness of the negative electrode is 183 to 1159 nm after the rechargeable lithium battery is charged and discharged.
    Type: Application
    Filed: September 3, 2004
    Publication date: March 31, 2005
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Duck-Chul Hwang, Seung-Sik Hwang, Sang-Mock Lee, Chung-Kun Cho, Yun-Suk Choi
  • Publication number: 20050042515
    Abstract: Disclosed is a composition for protecting a negative electrode for a lithium metal battery including a multifunctional monomer having at least two double bonds for facilitating cross-linking, a plasticizer, and at least one alkali metal salt.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 24, 2005
    Inventors: Duck-Chul Hwang, Seung-Sik Hwang, Chung-Kun Cho, Sang-Mock Lee
  • Publication number: 20050019033
    Abstract: Disclosed is a method and apparatus for controlling downstream traffic in an EPON (Ethernet Passive Optical Network). Individual tokens respectively for ONUs (Optical Network Units) are generated and stored, and a common token based on a total transfer rate of the EPON is generated and stored. In order to transmit downstream data, it is determined whether the downstream data is transmittable first by the corresponding individual token, and then second by the common token if the first determination is negative. In the case where traffic is concentrated on an ONU at a time, even if downstream data cannot be transmitted by an individual token for the corresponding ONU, the common token not used by other ONUs can be used to transmit the downstream data. It is thus possible to guarantee minimum/maximum transfer rates to all ONUs and ensure QoS against burst traffic in the EPON.
    Type: Application
    Filed: October 28, 2003
    Publication date: January 27, 2005
    Inventors: Ho-Il Oh, Su-Hyung Kim, Min-Hyo Lee, Young-Seok Kim, Yun-Je Oh, Tae-Sung Park, Kye-Hyun Ahn, Dong-Kook Kang, Hyuk-Kyu Park, Choong-Kun Cho, Young-Chon Kim
  • Publication number: 20050008938
    Abstract: A negative electrode of a rechargeable lithium battery includes a current collector, a negative active material layer on one side of the current collector, a protection layer on the negative active material and a releasing layer on the other side of the current collector, or on the protection layer.
    Type: Application
    Filed: February 17, 2004
    Publication date: January 13, 2005
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Chung-Kun Cho, Duck-Chul Hwang, Seung-Sik Hwang, Sang-Mock Lee
  • Patent number: 6835492
    Abstract: A method for forming a lithium anode protective layer comprises activating the surface of the lithium metal anode and forming a LiF protective layer on the activated surface of the lithium metal anode.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: December 28, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chung-kun Cho, Do-young Seung
  • Publication number: 20040241549
    Abstract: A negative electrode includes a first polymer layer, a second polymer layer on the first polymer layer, a metal layer on the second polymer layer and a negative active material layer on the metal layer.
    Type: Application
    Filed: February 12, 2004
    Publication date: December 2, 2004
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Chung-Kun Cho, Duck-Chul Hwang, Seung-Sik Hwang, Sang-Mock Lee
  • Publication number: 20040209159
    Abstract: A negative electrode of a lithium battery includes a lithium metal and a protective layer that includes a material having an ion conductivity of at least 5×10−5 S/cm. The protective layer includes ion conductive material that has a dense internal structure and an effective adhesive strength to the lithium metal. Although the protective layer has a thickness in the order of micrometers, the protective layer does not cause resistance to the electrochemical reaction and is chemically stable with respect to both the lithium metal and the electrolyte.
    Type: Application
    Filed: April 9, 2004
    Publication date: October 21, 2004
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jong-Ki Lee, Jea-Woan Lee, Chung-Kun Cho, Sang-Mock Lee
  • Publication number: 20040137330
    Abstract: Disclosed is a negative electrode for a lithium sulfur battery. The negative electrode includes a lithium metal, a pre-treatment layer, and a protection layer for the lithium metal. The pre-treatment layer has a thickness of 50 to 5000 Å and includes a lithium ion conductive material with an ionic conductivity of at least 1×10−10 S/cm.
    Type: Application
    Filed: October 17, 2003
    Publication date: July 15, 2004
    Inventors: Jong-Ki Lee, Jea-Woan Lee, Chung-Kun Cho, Sang-Mock Lee, Min-Seuk Kim