Patents by Inventor Kyung S. Min

Kyung S. Min 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).

  • Patent number: 5508087
    Abstract: An organic-optic recording tape of higher capacity and higher packing density of data. This tape comprises a backcoating layer, a base film coated on the backcoating layer, and a complex functional layer for writing, reading and erasing data. The complex functional layer is coated on the base film and selectively focused by laser beams of different powers outputted from a laser diode in order to write, read or erase data. This complex functional layer is made of a block polymer prepared by blending a thermoplastic elastomer and a viscoelastic transparent thermoplastic high-molecular resin or polymerizing them. Near infrared absorbing organic colorants are dispersed in the complex functional layer. The transparent thermoplastic resin has a glass transition temperature higher than that of the elastomer. The recording is effected by employing a laser beam of lower power capable of inducing thermal expansion of the elastomer and formation of a bump.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: April 16, 1996
    Assignee: Cheil Synthetics Inc.
    Inventors: Kyung S. Min, Geon Y. Kim, Ok K. Cho
  • Patent number: 5120407
    Abstract: There is provided a process for preparing five-membered heterocyclic polymers represented by a formula (II) which comprises electrochemically polymerizing five-membered heterocyclic monomers of formula (I) in the presence of tetrabutylammonium alkylsulfate as an electrolyte and an organic solvent, wherein formulas (I) and (II) are represented by the formulas ##STR1## and wherein, M represents nitrogen or sulfur, provided that hydrogen is deleted when M is sulfur;R is hydrogen or a C.sub.4 -C.sub.22 aliphatic alkyl group, provided that R is hydrogen when M is nitrogen, while R is hydrogen or a C.sub.4 -C.sub.22 aliphatic alkyl group including butyl, pentyl, hexyl, octyl and dodecyl when M is sulfur; andA represents an anion formed from an electrolyte dissociated in the electrolytic polymerization cell and functions as a dopant which facilitates electric conductivity to the polymer.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: June 9, 1992
    Assignee: Korea Institute of Science and Technology
    Inventors: Chung Y. Kim, Hee-Woo Rhee, Kyung S. Min