Patents by Inventor Woo-Young Lee

Woo-Young 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: 20080128717
    Abstract: A light-emitting diode (“LED”) package and a backlight unit having the same are disclosed. The LED package includes a package substrate, at least two LED chips arranged on the package substrate spaced apart from each other and having different brightness characteristics, a plurality of electrodes mounted on the package substrate to supply electrical power to the LED chips, and electric wires connecting the electrodes to the LED chips.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventors: Hyeon-Yong Jang, Hyung-Ku Kang, Sang-Hoon Park, Woo Young Lee
  • Patent number: 7186751
    Abstract: The disclosure concerns an injectable composition of paclitaxel, more particularly, an injectable composition of paclitaxel having excellent anticancer effect comprising solubilizer such as polyoxyl hydrogenated castor oil, anhydrous ethanol and stabilizer such as N-acetyl amino acid. The injectable compositions of paclitaxel provide a medical effect higher than that of the known compositions showing not only a lower toxicity but also superior solubility of paclitaxel and stability at room temperature, thus enabling venous injection by having fine particles.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: March 6, 2007
    Assignee: Choongwae Pharma Corporation
    Inventors: Woo-Young Lee, Sang-Heon Lee, Kye-Hyun Kim
  • Patent number: 7095070
    Abstract: In a method for fabricating a Bi thin film having a great MR (magnetoresistance) at room temperature and a method for fabricating a spintronics device using the same, the Bi thin film is fabricated by an electrodepostiting method and a sputtering method and has very great MR characteristics at room temperature, and it can be applied to various spintronics devices.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: August 22, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Woo Young Lee, Kyung Ho Shin, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Dal Young Kim, Kwan Hyi Lee, Kyoung Il Lee, Min Hong Jeun
  • Patent number: 7084468
    Abstract: Disclosed are a spin injection device applicable as a memory and a logical device using a spin valve effect obtained by injecting a carrier spin-polarized from a ferromagnet into a semiconductor at an ordinary temperature, and a spin-polarized field effect transistor.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: August 1, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Woo Young Lee, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Han Joo Lee, Woong Jun Hwang, Moo Whan Shin, Young Keun Kim
  • Patent number: 7063986
    Abstract: A 3 group–5 group compound ferromagnetic semiconductor, comprising one material ‘A’ selected from the group of Ga, Al and In and one material ‘B’ selected from the group consisting of N and P, wherein one material ‘C’ selected from the group consisting of Mn, Mg, Co, Fe, Ni, Cr and V is doped as a material for substituting the material ‘A’, the compound semiconductor has a single phase as a whole. The ferromagnetic semiconductor can be fabricated by a plasma-enhance molecular beam epitaxy growing method and since it shows the ferromagnetic characteristics at a room temperature, it can be applied as various spin electron devices.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: June 20, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Woo Young Lee, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Jung Mi Lee, Jae Min Myoung
  • Publication number: 20050026995
    Abstract: The disclosure concerns an injectable composition of paclitaxel, more particularly, an injectable composition of paclitaxel having excellent anticancer effect comprising solubilizer such as polyoxyl hydrogenated castor oil, anhydrous ethanol and stabilizer such as N-acetyl amino acid. The injectable compositions of paclitaxel provide a medical effect higher than that of the known compositions showing not only a lower toxicity but also superior solubility of paclitaxel and stability at room temperature, thus enabling venous injection by having fine particles.
    Type: Application
    Filed: September 9, 2002
    Publication date: February 3, 2005
    Inventors: Woo-Young Lee, Sang-Heon Lee, Kye-Hyun Kim
  • Patent number: 6848169
    Abstract: A fabrication method of a magnetic tunnel junction includes the steps of: forming a magnetic tunnel junction constructed having a first magnetic layer, a tunnel barrier formed at an upper surface of the first magnetic layer and a second magnetic layer formed at an upper surface of the tunnel barrier; and thermally treating the junction rapidly for 5 seconds˜10 minutes at a temperature of 200˜600° C. to re-distribute oxygens in the tunnel barrier and make the interface between the tunnel barrier and the magnetic layer to be even. The tunneling magnetoresistance and thermal stability of the magnetic tunnel junction can be improved through the rapid thermal annealing.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: February 1, 2005
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyung-Ho Shin, Woo-Young Lee, Young-Joon Park, Kyung-Il Lee, Jae-Geun Ha
  • Publication number: 20040178460
    Abstract: Disclosed are a spin injection device applicable as a memory and a logical device using a spin valve effect obtained by injecting a carrier spin-polarized from a ferromagnet into a semiconductor at an ordinary temperature, and a spin-polarized field effect transistor.
    Type: Application
    Filed: March 15, 2004
    Publication date: September 16, 2004
    Applicant: Korea Institute of Science and Technology
    Inventors: Woo Young Lee, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Han Joo Lee, Woong Jun Hwang, Moo Whan Shin, Young Keun Kim
  • Publication number: 20040179309
    Abstract: In a method for fabricating a Bi thin film having a great MR (magnetoresistance) at room temperature and a method for fabricating a spintronics device using the same, the Bi thin film is fabricated by an electrodepostiting method and a sputtering method and has very great MR characteristics at room temperature, and it can be applied to various spintronics devices.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 16, 2004
    Applicant: Korea Institute of Science and Technology
    Inventors: Woo Young Lee, Kyung Ho Shin, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Dal Young Kim, Kwan Hyi Lee, Kyoung Il Lee, Min Hong Jeun
  • Publication number: 20040041217
    Abstract: A 3 group-5 group compound ferromagnetic semiconductor, comprising one material ‘A’ selected from the group of Ga, Al and In and one material ‘B’ selected from the group consisting of N and P, wherein one material ‘C’ selected from the group consisting of Mn, Mg, Co, Fe, Ni, Cr and V is doped as a material for substituting the material ‘A’, the compound semiconductor has a single phase as a whole. The ferromagnetic semiconductor can be fabricated by a plasma-enhance molecular beam epitaxy growing method and since it shows the ferromagnetic characteristics at a room temperature, it can be applied as various spin electron devices.
    Type: Application
    Filed: January 14, 2003
    Publication date: March 4, 2004
    Applicant: Korea Institute of Science and Technology
    Inventors: Woo Young Lee, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Jung Mi Lee, Jae Min Myoung
  • Patent number: 6580656
    Abstract: A semiconductor memory device having a plurality of memory cell blocks employs a block activation control unit for controlling an activation timing of the plurality of memory cell blocks. Therefore, when a previously inputted block activation signal is identical to a currently inputted block activation signal, the currently inputted block activation signal is delayed for a predetermined time, so that the memory cell block can be activated after a precharge operation. When the previously inputted block activation signal is different from the currently inputted block activation signal, the memory cell block corresponding to the currently inputted block activation signal is activated, and the memory cell block corresponding to the previously inputted block activation signal performs the precharge operation at the same time. As a result, unnecessary delay time is reduced in memory block activation, thereby improving operation speed.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: June 17, 2003
    Assignee: Hynix Semiconductor Inc.
    Inventor: Woo Young Lee
  • Publication number: 20020185196
    Abstract: A fabrication method of a magnetic tunnel junction includes the steps of: forming a magnetic tunnel junction constructed having a first magnetic layer, a tunnel barrier formed at an upper surface of the first magnetic layer and a second magnetic layer formed at an upper surface of the tunnel barrier; and thermally treating the junction rapidly for 5 seconds ˜10 minutes at a temperature of 200˜600° C. to re-distribute oxygens in the tunnel barrier and make the interface between the tunnel barrier and the magnetic layer to be even. The tunneling magnetoresistance and thermal stability of the magnetic tunnel junction can be improved through the rapid thermal annealing.
    Type: Application
    Filed: May 13, 2002
    Publication date: December 12, 2002
    Applicant: Korea Institute of Science and Technology
    Inventors: Kyung-Ho Shin, Woo-Young Lee, Young-Joon Park, Kyung-Il Lee, Jae-Geun Ha
  • Publication number: 20020095544
    Abstract: A semiconductor memory device having a plurality of memory cell blocks employs a block activation control unit for controlling an activation timing of the plurality of memory cell blocks. Therefore, when a previously inputted block activation signal is identical to a currently inputted block activation signal, the currently inputted block activation signal is delayed for a predetermined time, so that the memory cell block can be activated after a precharge operation. When the previously inputted block activation signal is different from the currently inputted block activation signal, the memory cell block corresponding to the currently inputted block activation signal is activated, and the memory cell block corresponding to the previously inputted block activation signal performs the precharge operation at the same time. As a result, unnecessary delay time is reduced in memory block activation, thereby improving operation speed.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 18, 2002
    Inventor: Woo Young Lee
  • Patent number: 6154414
    Abstract: A semiconductor memory device has a plurality of memory blocks. The semiconductor memory device pre-charges a memory block when a block address signal applied to the memory block is identical with a previous block address signal previously applied, and activates the memory block when the block address signal is not identical with the previous block address signal. As a result, a pre-charge operation of a previous block and an activation operation of a present block are simultaneously performed so that the operation speed of an entire system becomes high-speed.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: November 28, 2000
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Woo Young Lee