Patents by Inventor Hojun Yoon

Hojun 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: 10175110
    Abstract: A hyperspectral camera apparatus is disclosed. The disclosed hyperspectral camera includes a plurality of semiconductor light sources to illuminate the subject with different wavelengths of light, an image sensor to acquire the image of the subject illuminated by the semiconductor light sources, and at least one optical filter provided in front of the image sensor to selectively transmit particular wavelengths of light onto the sensor.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: January 8, 2019
    Inventors: Hojun Yoon, Taek Kim
  • Publication number: 20180080827
    Abstract: A hyperspectral camera apparatus is disclosed. The disclosed hyperspectral camera includes a plurality of semiconductor light sources to illuminate the subject with different wavelengths of light, an image sensor to acquire the image of the subject illuminated by the semiconductor light sources, and at least one optical filter provided in front of the image sensor to selectively transmit particular wavelengths of light onto the sensor.
    Type: Application
    Filed: May 13, 2016
    Publication date: March 22, 2018
    Inventor: Hojun Yoon
  • Patent number: 7687386
    Abstract: A semiconductor structure includes a semiconductor substrate, a semiconductor active region, a semiconductor contact layer, at least one metal migration semiconductor barrier layer, and a metal contact. The metal migration semiconductor barrier layer may be embedded within the semiconductor contact layer. Furthermore, the metal migration semiconductor barrier layer may be located underneath or above and in intimate contact with the semiconductor contact layer. The metal migration semiconductor barrier layer and the semiconductor contact layer form a contact structure that prevents metals from migrating from the metal contact into the semiconductor active layer during long-term exposure to high temperatures.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 30, 2010
    Assignee: The Boeing Company
    Inventors: Hojun Yoon, Richard King, Jerry R. Kukulka, James H. Ermer, Maggy L. Lau
  • Publication number: 20070138636
    Abstract: A semiconductor structure includes a semiconductor substrate, a semiconductor active region, a semiconductor contact layer, at least one metal migration semiconductor barrier layer, and a metal contact. The metal migration semiconductor barrier layer may be embedded within the semiconductor contact layer. Furthermore, the metal migration semiconductor barrier layer may be located underneath or above and in intimate contact with the semiconductor contact layer. The metal migration semiconductor barrier layer and the semiconductor contact layer form a contact structure that prevents metals from migrating from the metal contact into the semiconductor active layer during long-term exposure to high temperatures.
    Type: Application
    Filed: February 20, 2007
    Publication date: June 21, 2007
    Inventors: Hojun Yoon, Richard King, Jerry Kukulka, James Ermer, Maggy Lau
  • Publication number: 20070131275
    Abstract: Methods and apparatuses for creating solar cell assemblies with bonded interlayers are disclosed. In summary, the present invention describes an apparatus and method for making a solar cell assembly with transparent conductive bonding interlayers. An apparatus in accordance with the present invention comprises a substrate, a first solar cell, coupled to a first side of the substrate, wherein the first solar cell comprises a first Transparent Conductive Coating (TCC) layer coupled to a first polarity electrode of the first solar cell, and a second solar cell, the second solar cell being bonded to the first solar cell by bonding the first TCC layer to the second solar cell.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 14, 2007
    Inventors: Geoffrey Kinsey, Richard King, Hojun Yoon, Denton McAlister
  • Patent number: 7202542
    Abstract: A semiconductor structure includes a semiconductor substrate, a semiconductor active region, a semiconductor contact layer, at least one metal migration semiconductor barrier layer, and a metal contact. The metal migration semiconductor barrier layer may be embedded within the semiconductor contact layer. Furthermore, the metal migration semiconductor barrier layer may be located underneath or above and in intimate contact with the semiconductor contact layer. The metal migration semiconductor barrier layer and the semiconductor contact layer form a contact structure that prevents metals from migrating from the metal contact into the semiconductor active layer during long-term exposure to high temperatures.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: April 10, 2007
    Assignee: The Boeing Company
    Inventors: Hojun Yoon, Richard King, Jerry R. Kukulka, James H. Ermer, Maggy L. Lau
  • Publication number: 20050133919
    Abstract: A semiconductor structure includes a semiconductor substrate, a semiconductor active region, a semiconductor contact layer, at least one metal migration semiconductor barrier layer, and a metal contact. The metal migration semiconductor barrier layer may be embedded within the semiconductor contact layer. Furthermore, the metal migration semiconductor barrier layer may be located underneath or above and in intimate contact with the semiconductor contact layer. The metal migration semiconductor barrier layer and the semiconductor contact layer form a contact structure that prevents metals from migrating from the metal contact into the semiconductor active layer during long-term exposure to high temperatures.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Applicant: The Boeing Company
    Inventors: Hojun Yoon, Richard King, Jerry Kukulka, James Ermer, Maggy Lau