Patents by Inventor Dai-Woon Lee

Dai-Woon 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: 20200091071
    Abstract: A semiconductor device includes a gate pattern disposed over a lower structure, and including a gate electrode region and a gate pad region extending from the gate electrode region; and a vertical channel semiconductor layer having a side surface facing the gate electrode region of the gate pattern. The gate pad region includes a first pad region having a thickness greater than a thickness of the gate electrode region. The first pad region includes an upper surface, a lower surface opposing the upper surface, and an outer side surface. The outer side surface has a lower outer side surface and an upper outer side surface, divided from each other by a boundary portion. The lower outer side surface extends from the lower surface, and a connection portion of the lower outer side surface and the lower surface has a rounded shape.
    Type: Application
    Filed: June 18, 2019
    Publication date: March 19, 2020
    Inventors: DONG IK LEE, DAI HONG KIM, JI WOON IM, SE MEE JANG, BO RA NAM
  • Publication number: 20060128683
    Abstract: The present invention is related to novel use of photopyrin compounds useful as an anticancer agent by way of reproducing singlet state oxygen radical and the inventive compounds showed potent inhibition effect on colon cancer, cervical cancer, gastric cancer, cystic cancer or lung cancer. Accordingly, the porphyrin compound of the present invention can be useful in treating or preventing colon cancer, cervical cancer, gastric cancer, cystic cancer or lung cancer in human or mammal.
    Type: Application
    Filed: October 20, 2005
    Publication date: June 15, 2006
    Inventors: Nam-Tae Woo, Min-Suk Kang, Won-Young Lee, Chang-Hee Lee, Yong-Rok Kim, Dai-Woon Lee, Dong-Hoon Won, Si-Hwan Ko
  • Patent number: 7019132
    Abstract: The present invention is related to novel photopyrin compounds and the pharmaceutically acceptable salt thereof useful as an anticancer or photodynamic diagnostic agent by way of reproducing singlet state oxygen radical and the inventive compounds have superior advantages such as excellent photon yield to produce singlet oxygen, good physical stability and potent cell cytotoxicity to conventional photosensitizer. The present invention also provides a pharmaceutical composition comprising a novel photopyrin compound of formula (I) to (VII) or a pharmaceutically acceptable salt thereof as an active ingredient for preventing or treating various cancers such as stomach cancer, liver cancer, lung cancer, cervical cancer and breast cancer in human or mammal together with a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: March 28, 2006
    Assignee: Kostarworld Co., Ltd.
    Inventors: Nam-Tae Woo, Min-Suk Kang, Won-Young Lee, Chang-Hee Lee, Yong-Rok Kim, Dai-Woon Lee, Dong-Hoon Won, Si-Hwan Ko
  • Publication number: 20040142917
    Abstract: The present invention is related to novel photopyrin compounds and the pharmaceutically acceptable salt thereof useful as an anticancer or photodynamic diagnostic agent by way of reproducing singlet state oxygen radical and the inventive compounds have superior advantages such as excellent photon yield to produce singlet oxygen, good physical stability and potent cell cytotoxicity to conventional photosensitizer. The present invention also provides a pharmaceutical composition comprising a novel photopyrin compound of formula (I) to (VII) or a pharmaceutically acceptable salt thereof as an active ingredient for preventing or treating various cancers such as stomach cancer, liver cancer, lung cancer, cervical cancer and breast cancer in human or mammal together with a pharmaceutically acceptable carrier.
    Type: Application
    Filed: November 20, 2003
    Publication date: July 22, 2004
    Inventors: Nam-Tae Woo, Min-Suk Kang, Won-Young Lee, Chang-Hee Lee, Yong-Rok Kim, Dai-Woon Lee, Dong-Hoon Won, Si-Hwan Ko
  • Patent number: 4139502
    Abstract: Extraction means for the selective extraction of nickel from aqueous solutions thereof, being an open-pore polyurethane foam supporting in its matrix a dioxime of the general formula ##STR1## wherein R and R' each designate an alkyl, aryl, aralkyl, alkaryl or a heterocyclic group, which may be substituted by a non-interfering substituent, or R and R' may form together a ring-structure so as to form cyclohexanedione glyoxime; optionally together with a plasticizer.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: February 13, 1979
    Assignee: Yeda Research and Development Company, Ltd.
    Inventors: Martin M. Halmann, Dai-Woon Lee