Patents by Inventor Jong-kwan Lee

Jong-kwan 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).

  • Patent number: 11652117
    Abstract: An image sensing device is disclosed. The image sensing device includes a first unit pixel provided with a first photoelectric conversion element and a first floating diffusion region, a second unit pixel provided with a second photoelectric conversion element and a second floating diffusion region, a third unit pixel provided with a third photoelectric conversion region and a third floating diffusion region, and a fourth unit pixel provided with a fourth photoelectric conversion element and a fourth floating diffusion region. The first to fourth unit pixels are isolated from each other by a first device isolation structure. The first to fourth floating diffusion regions are coupled to a common floating diffusion node through conductive lines.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: May 16, 2023
    Assignee: SK hynix Inc.
    Inventor: Jong Kwan Lee
  • Publication number: 20210242257
    Abstract: An image sensing device is disclosed. The image sensing device includes a first unit pixel provided with a first photoelectric conversion element and a first floating diffusion region, a second unit pixel provided with a second photoelectric conversion element and a second floating diffusion region, a third unit pixel provided with a third photoelectric conversion region and a third floating diffusion region, and a fourth unit pixel provided with a fourth photoelectric conversion element and a fourth floating diffusion region. The first to fourth unit pixels are isolated from each other by a first device isolation structure. The first to fourth floating diffusion regions are coupled to a common floating diffusion node through conductive lines.
    Type: Application
    Filed: July 28, 2020
    Publication date: August 5, 2021
    Inventor: Jong Kwan Lee
  • Patent number: 8365321
    Abstract: A method of manufacturing a bathtub includes a first operation of forming an external structure layer forming an external appearance of the bathtub; a second operation of forming a mold-release agent layer having a bathtub forming surface corresponding to an internal shape of the bathtub and a flange extending from a circumference of the bathtub forming surface to the outside, on an external surface of an internal mold; and a third operation of forming a semi-rigid foam layer having a first unfoaming painted layer, a soft foam layer, and a second unfoaming painted layer in sequence such that the soft foam layer is sandwiched between the first unfoaming painted layer and the second unfoaming painted layer. The semi-rigid foam layer is formed between the external structure layer and the mold-release agent layer by being injected in a space between the external structure layer and the mold-release agent layer.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: February 5, 2013
    Inventors: Kyung-jun Kim, Jong-kwan Lee
  • Publication number: 20120066830
    Abstract: The invention is directed to a method of preparing bathtub with cushion and a bathtub with cushion, and more particularly, a method of preparing bathtub comprising a first operation of forming an external structure layer forming an external appearance of a bathtub; a second operation of forming a mold-release agent layer having a bathtub forming surface corresponding to an internal shape of the bathtub and a flange extending from a circumference of the bathtub forming surface to the outside, on an external surface of an internal mold; and a third operation of forming a semi-rigid foam layer having a soft foam layer and an unfoaming painted layer formed sequentially between the external structure layer and the mold-release agent layer by being injected in a space between the external structure layer and the mold-release layer.
    Type: Application
    Filed: April 21, 2010
    Publication date: March 22, 2012
    Inventors: Kyung-jun Kim, Jong Kwan Lee
  • Publication number: 20100132109
    Abstract: The present invention relates to a bathtub with cushion and a preparation method thereof which comprises an external structure layer which forms an external appearance of the bathtub; a foaming layer which is formed on the external structure layer; and a elastic protecting layer which is selected from groups of a rapid-hardening polyurea resin hardened layer, a polyurethane-urea resin hardened layer and an unfoaming painted layer, on the foaming layer.
    Type: Application
    Filed: June 9, 2009
    Publication date: June 3, 2010
    Inventors: Kyung-Jun Kim, Jong-Kwan Lee, Kyung-Jun Kim