Patents by Inventor Ju Hwan Yun

Ju Hwan Yun 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).

  • Publication number: 20110017258
    Abstract: A back contact solar cell comprises a first dopant diffusion part and a second dopant diffusion part formed on a rear surface of an n-type semiconductor wafer with a predetermined distance formed therebetween by a diffusion prevention part for ensuring no contact with each other and suppressing the diffusion of dopant; and an electrode configured of an anode and a cathode each connected to the first dopant diffusion part and the second dopant diffusion part. According to the present invention, the back contact solar cell is capable of preventing light loss and improving its efficiency by forming an electrode to be positioned on a rear surface of a semiconductor wafer through a simple process and by simultaneously implementing an anode electrode and a cathode electrode on the semiconductor wafer without having a grid electrode restricting incidence of sunlight.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 27, 2011
    Applicant: LG Electronics Inc.
    Inventors: Il-Hyoung Jung, Ju-Hwan Yun, Jong-Hwan Kim
  • Publication number: 20100298027
    Abstract: A mobile terminal and manufacture of same are provided. The mobile terminal includes: an antenna; a first case at which the antenna is disposed; a second case coupled to the first case; a main PCB disposed at one side of the second case; and a sub-PCB disposed at an opposite side of the second case, the sub-PCB being connected to the main PCB through a cable, wherein the sub-PCB is electrically coupled with the antenna when the first case and the second case are coupled together.
    Type: Application
    Filed: May 19, 2010
    Publication date: November 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Ju Hwan Yun
  • Publication number: 20100167457
    Abstract: Disclosed are a laser firing apparatus for a high efficiency solar cell including laser generating unit and a fabrication method thereof. The laser firing apparatus for a high efficiency solar cell includes at least one laser generating unit that irradiates a laser irradiation on to an electrode region formed on a semiconductor substrate for the solar cell and heat-treats the electrode region. In addition, the fabrication method of a solar cell includes forming an electrode material on a semiconductor substrate for the solar cell; and forming an electrode by heat treating the electrode material by laser irradiation.
    Type: Application
    Filed: December 23, 2009
    Publication date: July 1, 2010
    Inventors: Jong Hwan KIM, Hwa Nyeon Kim, Ju Hwan Yun
  • Patent number: 7730749
    Abstract: Door on a laundry dryer/drum type washing machine including a door frame having a central opening, for opening/closing an opening in a front part of a cabinet for introduction/taking out of laundry, an outer window fixed to a front surface of the door frame, and an inner window fixed to a rear surface of the door frame, wherein the door frame has a front surface curved in left/right directions, and the outer window is curved the same with the door frame, thereby providing a good design of a door and improving washing and drying performance.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: June 8, 2010
    Assignee: LG Electronics Inc.
    Inventors: Ju Hwan Yun, Seong Hai Jeong, Soon Jo Lee
  • Patent number: 7690403
    Abstract: An automatic liquid dispenser and automatic liquid dispensing method are disclosed capable of transmitting ultrasonic to an upper surface of a receptacle, and receiving the ultrasonic reflected from the upper surface of the receptacle to detect a receptacle height, whereby the receptacle height may be freely detected regardless of shape, material and surface state of the receptacle, and regardless of a position where the receptacle is placed.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: April 6, 2010
    Assignee: LG Electronics Inc.
    Inventors: Dong Joo You, Ju Hwan Yun, Jong Hwan Kim, Young Hyun Lee
  • Patent number: 7661448
    Abstract: An automatic liquid dispenser and a refrigerator with the same is disclosed wherein a level of liquid to be ejected into a receptacle can be established, and a display module is mounted to thereby enhance a user convenience, and wherein the automatic liquid dispenser is mounted on the refrigerator to allow being independently driven and manufactured.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: February 16, 2010
    Assignee: LG Electronics Inc.
    Inventors: Jong Hwan Kim, Ju Hwan Yun, Young Hyun Lee, Dong Joo You
  • Publication number: 20090260681
    Abstract: The present invention relates to a solar cell and a method for manufacturing the same. More specifically, the present invention provides a silicon solar cell capable of minimizing defects and recombination of electrons-holes by removing a damaged layer formed by a laser edge isolation process to isolate a silicon substrate and covering a protective layer on a surface thereof and a method for manufacturing the same.
    Type: Application
    Filed: February 24, 2009
    Publication date: October 22, 2009
    Applicant: LG Electronics Inc.
    Inventors: Ju-Hwan YUN, Jong-Hwan Kim, Bum-Sung Kim, Ji-Hoon Ko
  • Publication number: 20090223561
    Abstract: With the present invention, two wafers for a solar cell only whose light receiving surfaces are selectively etched can be simultaneously obtained by overlapping the two wafers and performing a single-sided etching or an asymmetric etching thereon. The present invention provides a method of etching a wafer comprising: performing a single-sided etching or an asymmetric etching on the wafer, wherein the performing the single-sided etching or the asymmetric etching comprises: overlapping two wafers whose one sides face each other; and etching the overlapped two wafers, and a solar cell including the etched wafers.
    Type: Application
    Filed: February 19, 2009
    Publication date: September 10, 2009
    Applicant: LG Electronics Inc.
    Inventors: Jong-Dae KIM, Bum-Sung Kim, Ju-Hwan Yun, Young-Hyun Lee
  • Patent number: 7549305
    Abstract: Door on a laundry dryer/drum type washing machine including a door frame having a central opening, for opening/closing an opening in a front part of a cabinet for introduction/taking out of laundry, an outer window fixed to a front surface of the door frame, and an inner window fixed to a rear surface of the door frame, wherein the door frame has a front surface curved in left/right directions, and the outer window is curved the same with the door frame, thereby providing a good design of a door and improving washing and drying performance.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 23, 2009
    Assignee: LG Electronics Inc.
    Inventors: Ju Hwan Yun, Seong Hai Jeong, Soon Jo Lee
  • Publication number: 20090151782
    Abstract: Disclosed are a hetero-junction silicon solar cell and a fabrication method thereof. The hetero-junction silicon solar cell according to the present invention forms a pn junction of a crystalline silicon substrate and a passivation layer doped with impurities so as to minimize a recombination of electrons and holes, making it possible to maximize efficiency of the hetero-junction silicon solar cell. The present invention provides a hetero-junction silicon solar cell comprising a crystalline silicon substrate and a passivation layer that is formed on the crystalline silicon substrate and is doped with impurities.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 18, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Ji Hoon Ko, Young Joo Eo, Jin Ah Kim, Ju Hwan Yun, Il Hyoung Jung, Jong Hwan Kim
  • Publication number: 20080256988
    Abstract: Door on a laundry dryer/drum type washing machine including a door frame having a central opening, for opening/closing an opening in a front part of a cabinet for introduction/taking out of laundry, an outer window fixed to a front surface of the door frame, and an inner window fixed to a rear surface of the door frame, wherein the door frame has a front surface curved in left/right directions, and the outer window is curved the same with the door frame, thereby providing a good design of a door and improving washing and drying performance.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 23, 2008
    Inventors: Ju Hwan Yun, Seong Hai Jeong, Soon Jo Lee
  • Publication number: 20080216504
    Abstract: An automatic liquid dispenser and a refrigerator with the same is disclosed wherein a level of liquid to be ejected into a receptacle can be established, and a display module is mounted to thereby enhance a user convenience, and wherein the automatic liquid dispenser is mounted on the refrigerator to allow being independently driven and manufactured.
    Type: Application
    Filed: October 25, 2007
    Publication date: September 11, 2008
    Inventors: Jong Hwan Kim, Ju Hwan Yun, Young Hyun Lee, Dong Joo You
  • Publication number: 20080190514
    Abstract: An automatic liquid dispenser is disclosed wherein a liquid adjustor is disposed to prevent liquid from splashing outside of a receptacle, thereby saving the automatic liquid dispenser from being polluted with splashed liquid.
    Type: Application
    Filed: October 18, 2007
    Publication date: August 14, 2008
    Inventors: Young Hyun LEE, Ju Hwan Yun, Dong Joo You, Jong Hwan Kim
  • Publication number: 20080105331
    Abstract: An automatic liquid dispenser and automatic liquid dispensing method are disclosed capable of transmitting ultrasonic to an upper surface of a receptacle, and receiving the ultrasonic reflected from the upper surface of the receptacle to detect a receptacle height, whereby the receptacle height may be freely detected regardless of shape, material and surface state of the receptacle, and regardless of a position where the receptacle is placed.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 8, 2008
    Inventors: Dong Joo You, Ju Hwan Yun, Jong Hwan Kim, Young Hyun Lee
  • Publication number: 20040020246
    Abstract: Door on a laundry dryer/drum type washing machine including a door frame having a central opening, for opening/closing an opening in a front part of a cabinet for introduction/taking out of laundry, an outer window fixed to a front surface of the door frame, and an inner window fixed to a rear surface of the door frame, wherein the door frame has a front surface curved in left/right directions, and the outer window is curved the same with the door frame, thereby providing a good design of a door and improving washing and drying performance.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 5, 2004
    Inventors: Ju Hwan Yun, Seong Hai Jeong, Soon Jo Lee