Patents by Inventor Ji Seop So

Ji Seop So 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: 8373180
    Abstract: A side-view type light emitting diode package for emitting light, emitted from a light emitting diode chip, toward a side surface is disclosed. The side-view type light emitting diode package comprises a package body having an opening portion for exposing the light emitting diode chip in a light emitting direction; and a light-transmittable resin covering the light emitting diode chip, wherein at least a portion of an inner wall of the opening portion is formed with a step projection for partitioning the opening portion into upper and lower sections, and the lower section of the opening portion below the step projection is filled with the light-transmittable resin. Accordingly, the light-transmittable resin with the convex lens shape may be easily formed, so that the light emission efficiency thereof can be improved.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: February 12, 2013
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hwa Ja Kim, Nam Young Kim, Myung Hee Lee, Kyoung Bo Han, Tae Kwang Kim, Ji Seop So
  • Patent number: 8129740
    Abstract: Disclosed is a side view LED package that can be more accurately mounted onto a surface of a substrate such as a printed circuit board without distortion includes a first portion of a body allowing light to be emitted in front thereof, the first portion having a horizontal plane formed on a top or bottom side thereof; and a second portion of the body positioned backward with respect to a back end boundary line of the first portion, the second portion being formed with an inclined plane that is adjacent to the horizontal plane and has height decreased from the back end boundary line, wherein the inclined plane is partially formed with an added thickness portion that is flush with the horizontal plane.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: March 6, 2012
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jong Bum Choi, Myung Hee Lee, Won Il Kim, Ji Seop So
  • Patent number: 7999280
    Abstract: Disclosed is a light emitting diode (LED) package employing a lead terminal with a reflecting surface. The package includes first and second lead terminals that are spaced apart from each other. The first lead terminal has a lower portion with an LED chip mounting area, and at least one reflecting surface formed by being bent from the lower portion. Meanwhile, a package body supports the first and second lead terminals and forms a cavity through which the LED chip mounting area and the reflecting surface of the first lead terminal and a part of the second lead terminal are exposed. The first and second lead terminals extend outside of the package body. Accordingly, light emitted from an LED chip can be reflected on the reflecting surface with high reflectivity, so that the optical efficiency of the package can be improved.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: August 16, 2011
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hwa Ja Kim, Nam Young Kim, Myung Hee Lee, Kyoung Bo Han, Tae Kwang Kim, Ji Seop So
  • Publication number: 20100096653
    Abstract: A side-view type light emitting diode package for emitting light, emitted from a light emitting diode chip, toward a side surface is disclosed. The side-view type light emitting diode package comprises a package body having an opening portion for exposing the light emitting diode chip in a light emitting direction; and a light-transmittable resin covering the light emitting diode chip, wherein at least a portion of an inner wall of the opening portion is formed with a step projection for partitioning the opening portion into upper and lower sections, and the lower section of the opening portion below the step projection is filled with the light-transmittable resin. Accordingly, the light-transmittable resin with the convex lens shape may be easily formed, so that the light emission efficiency thereof can be improved.
    Type: Application
    Filed: September 21, 2007
    Publication date: April 22, 2010
    Applicant: Seoul Semiconductor Co. Ltd.
    Inventors: Hwa Ja Kim, Nam Young Kim, Myung Hee Lee, Kyoung Bo Han, Tae Kwang Kim, Ji Seop So
  • Publication number: 20090242920
    Abstract: Disclosed is a side view LED package that can be more accurately mounted onto a surface of a substrate such as a printed circuit board without distortion includes a first portion of a body allowing light to be emitted in front thereof, the first portion having a horizontal plane formed on a top or bottom side thereof; and a second portion of the body positioned backward with respect to a back end boundary line of the first portion, the second portion being formed with an inclined plane that is adjacent to the horizontal plane and has height decreased from the back end boundary line, wherein the inclined plane is partially formed with an added thickness portion that is flush with the horizontal plane.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Applicant: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Jong Bum CHOI, Myung Hee Lee, Won Il Kim, Ji Seop So
  • Publication number: 20080048201
    Abstract: Disclosed is a light emitting diode (LED) package employing a lead terminal with a reflecting surface. The package includes first and second lead terminals that are spaced apart from each other. The first lead terminal has a lower portion with an LED chip mounting area, and at least one reflecting surface formed by being bent from the lower portion. Meanwhile, a package body supports the first and second lead terminals and forms a cavity through which the LED chip mounting area and the reflecting surface of the first lead terminal and a part of the second lead terminal are exposed. The first and second lead terminals extend outside of the package body. Accordingly, light emitted from an LED chip can be reflected on the reflecting surface with high reflectivity, so that the optical efficiency of the package can be improved.
    Type: Application
    Filed: July 19, 2007
    Publication date: February 28, 2008
    Applicant: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Hwa Ja KIM, Nam Young KIM, Myung Hee LEE, Kyoung Bo HAN, Tae Kwang KIM, Ji Seop SO
  • Patent number: D605610
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: December 8, 2009
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Jeong A. Han, Ji Seop So