Patents by Inventor Hee Kyung Yoon

Hee Kyung Yoon 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: 10115849
    Abstract: A solar cell includes a substrate, a back electrode layer on the substrate, a light absorbing layer on the back electrode layer, a buffer layer on the light absorbing layer, and a front electrode layer on the buffer layer. The buffer layer includes at least one of zinc sulfide (ZnS), zinc oxide (ZnO) and zinc hydroxide (Zn(OH)2). A method of fabricating the solar cell includes forming a back electrode layer on a substrate, forming a light absorbing layer on the back electrode layer, forming a first buffer layer on the light absorbing layer, and forming a second buffer layer on the first buffer layer. The first buffer layer or the second buffer layer includes at least one of zinc sulfide (ZnS), zinc oxide (ZnO), and zinc hydroxide (Zn(OH)2).
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: October 30, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Hee Kyung Yoon
  • Publication number: 20160240700
    Abstract: A solar battery according to an embodiment comprises: a support substrate; a rear electrode layer arranged on the support substrate; a light absorbing layer arranged on the rear electrode layer; a buffer layer arranged on the light absorbing layer; and a front electrode layer arranged on the buffer layer, wherein the buffer layer comprises Zn(O,S), and the content of sulfur (S) in the buffer layer increases towards the front electrode layer starting from the light absorbing layer
    Type: Application
    Filed: October 9, 2014
    Publication date: August 18, 2016
    Inventor: Hee Kyung Yoon
  • Patent number: 9349901
    Abstract: A solar cell apparatus according to the embodiment includes a support substrate; a back electrode layer on the support layer; a light absorbing layer on the back electrode layer; a first buffer layer having first conductivity on the light absorbing layer; a second buffer layer having second conductivity on the first buffer layer; and a window layer on the second buffer layer.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: May 24, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Hee Kyung Yoon
  • Publication number: 20150155406
    Abstract: A solar cell includes a substrate, a back electrode layer on the substrate, a light absorbing layer on the back electrode layer, a buffer layer on the light absorbing layer, and a front electrode layer on the buffer layer. The buffer layer includes at least one of zinc sulfide (ZnS), zinc oxide (ZnO) and zinc hydroxide (Zn(OH)2). A method of fabricating the solar cell includes forming a back electrode layer on a substrate, forming a light absorbing layer on the back electrode layer, forming a first buffer layer on the light absorbing layer, and forming a second buffer layer on the first buffer layer. The first buffer layer or the second buffer layer includes at least one of zinc sulfide (ZnS), zinc oxide (ZnO), and zinc hydroxide (Zn(OH)2).
    Type: Application
    Filed: August 23, 2013
    Publication date: June 4, 2015
    Inventor: Hee Kyung Yoon
  • Publication number: 20140318607
    Abstract: A solar cell apparatus according to the embodiment includes a support substrate; a back electrode layer on the support layer; a light absorbing layer on the back electrode layer; a first buffer layer having first conductivity on the light absorbing layer; a second buffer layer having second conductivity on the first buffer layer; and a window layer on the second buffer layer.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 30, 2014
    Inventor: Hee Kyung Yoon
  • Patent number: 5725488
    Abstract: A printed orthopaedic casting bandage is disclosed having a bandage substrate made of at least 50% fibers having a Young's Modulus in excess of 8.times.10.sup.6 psi. The fibers, in particular, are glass fibers and carbon fibers. The printing substance is a plastisol-based printing agent, and the printed substrate is covered with a water-activatable hardening resin such as a polyurethane prepolymer of polyol and isocyanate.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: March 10, 1998
    Assignee: Johnson & Johnson Professional, Inc.
    Inventors: Hee Kyung Yoon, Edward L. Cho
  • Patent number: 5649326
    Abstract: A lubricous glove is disclosed wherein the lubricous glove is made of a base material having a coating thereon of a hydrophilic lubricant mixed with a substantial portion of the material of the base material. For example, a natural rubber latex glove may have coated thereon a mixture of natural rubber latex and polyvinyl alcohol in order to provide a lubricous surface. In an alternate embodiment disclosed, the glove may be itself made of a mixture of the flexible base material and the hydrophilic lubricant. For example, a natural rubber latex may be mixed with either polyvinyl alcohol, polyvinylpyrrolidone or polyethylene oxide and a glove formed from the mixture in order to provide a lubricous glove.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: July 22, 1997
    Assignee: Johnson & Johnson Professional, Inc.
    Inventors: Robert Edward Richard, Jr., Hee Kyung Yoon