Patents by Inventor Yeon Ahn

Yeon Ahn 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: 20150021791
    Abstract: Various aspects of the present disclosure provide a semiconductor device and a method for manufacturing thereof, which can facilitate stacking of semiconductor die while saving manufacturing cost. In an example embodiment, the semiconductor device may comprise a first semiconductor die, a second semiconductor die bonded to a top surface of the first semiconductor die, and a redistribution layer electrically connecting the first semiconductor die to the second semiconductor die, wherein the redistribution layer is formed to extend along surrounding side portions of the second semiconductor die.
    Type: Application
    Filed: November 22, 2013
    Publication date: January 22, 2015
    Applicant: Amkor Technology, Inc.
    Inventors: Doo Hyun Park, Seong Min Seo, Seok Woo Yun, Ji Hun Lee, Seo Yeon Ahn, Young Rae Kim, Jong Sik Paek
  • Publication number: 20150001499
    Abstract: Disclosed is an organic light emitting device that comprises first and second electrodes; first and second stacks arranged between the first electrode and the second electrode, the first and second stacks respectively emitting colors different from each other; and an intermediate layer arranged between the first stack and the second stack, wherein the intermediate layer includes a first intermediate layer arranged adjacent to the first stack to provide electrons to the first stack, and a second intermediate layer arranged adjacent to the second stack to provide holes to the second stack, and wherein the second intermediate layer includes a P-doping charge generating layer arranged on the first intermediate layer and a layer having a hole transporting characteristic and formed on the P-doping charge generating layer.
    Type: Application
    Filed: June 17, 2014
    Publication date: January 1, 2015
    Inventors: Shinhan KIM, SeungRyong Joung, So Yeon Ahn, Taeshick Kim
  • Patent number: 8878171
    Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a first stack including a first hole transport layer, a second hole transport layer, a first emitting layer, and a first electron transport layer, the layers being sequentially stacked on the first electrode, a second stack including a third hole transport layer, a fourth hole transport layer, a second emitting layer including at least two hosts and a single dopant and having at least three emitting areas, and a second electron transport layer, the layers being sequentially stacked between the first stack and the second electrode, wherein the second emitting layer includes a first emitting area including a material of the fourth hole transport layer, a second emitting area including a material of the second electron transport layer, and a third emitting area including the at least two hosts.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: November 4, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Haeng Heo, Jae-Man Lee, Gwi-Jeong Cho, So-Yeon Ahn
  • Publication number: 20140284785
    Abstract: Disclosed are a semiconductor device and a manufacturing method thereof, which can achieve miniaturization and improvement in the integration level by forming a substrate using a pattern layer implemented on a wafer in a semiconductor fabrication (FAB) process. In one exemplified embodiment, the manufacturing method of the semiconductor device includes preparing a first semiconductor die including a plurality of through electrodes and a plurality of first conductive pillars, mounting the first semiconductor die to connect the first conductive pillars to the pattern layer provided on a wafer, forming a first encapsulant to cover the pattern layer and the first semiconductor die, mounting a second semiconductor die to electrically connect second conductive pillars provided in the second semiconductor die to the plurality of through electrodes exposed to a second surface of the first semiconductor die, and removing the wafer from a first surface of the pattern layer.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Applicant: Amkor Technology, Inc.
    Inventors: Pil Je Sung, Seong Min Seo, Jong Sik Paek, Seo Yeon Ahn, Hui Tae Kim
  • Publication number: 20140117338
    Abstract: An organic light emitting display device with improved lifespan is disclosed. The organic light emitting display device includes first and second electrodes facing each other on a substrate, at least two light emitting units formed between the first and second electrodes, an N-type charge generation layer and a P-type charge generation layer sequentially stacked between the light emitting units, and at least one auxiliary charge generation layer formed between at least any one of the P-type charge generation layer and the N-type charge generation layer and an emitting layer of the light emitting unit disposed on an upper or lower portion of the at least any one thereof and generating electrons and holes supplied to the emitting layer of the light emitting unit.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Gwi-Jeong Cho, Jae-Man Lee, Jeong-Haeng Heo, So-Yeon Ahn, Tae-Shick Kim, Hee-Dong Choi
  • Publication number: 20140091289
    Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a first stack including a first hole transport layer, a second hole transport layer, a first emitting layer, and a first electron transport layer, the layers being sequentially stacked on the first electrode, a second stack including a third hole transport layer, a fourth hole transport layer, a second emitting layer including at least two hosts and a single dopant and having at least three emitting areas, and a second electron transport layer, the layers being sequentially stacked between the first stack and the second electrode, wherein the second emitting layer includes a first emitting area including a material of the fourth hole transport layer, a second emitting area including a material of the second electron transport layer, and a third emitting area including the at least two hosts.
    Type: Application
    Filed: September 25, 2013
    Publication date: April 3, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong-Haeng HEO, Jae-Man LEE, Gwi-Jeong CHO, So-Yeon AHN
  • Publication number: 20130313535
    Abstract: An organic light emitting device includes a substrate, a first electrode on the substrate, a second electrode, a first stack on the first electrode and including a hole injection layer, a first hole transport layer, a first mixed layer, a second hole transport layer, a first light emitting layer, and a first electron transport layer sequentially laminated, a second stack between the first stack and the second electrode and including a third hole transport layer, a fourth hole transport layer, a second light emitting layer, and a second electron transport layer sequentially laminated, and a charge generation layer between the first stack and the second stack to control charge balance between the first and second stacks. The first mixed layer includes materials used to form the first and second hole transport layers.
    Type: Application
    Filed: May 22, 2013
    Publication date: November 28, 2013
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong-Haeng Heo, Jae-Man Lee, Jeong-Kyun Shin, Gwi-Jeong Cho, So-Yeon Ahn
  • Patent number: 8044683
    Abstract: A logic circuit includes a logic gate unit, an inverter, and a switching circuit. The logic gate unit receives a power supply voltage and an input signal to output a first signal. The inverter receives the first signal to output a second signal. The switching circuit provides one of first and second power supply voltages as the power supply voltage of the logic gate unit in response to the first and second signals. The first power supply voltage and the second power supply voltage have different voltage levels, thus enabling stable level shifting.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jonghoon Jung, Sounghoon Sim, Mi yeon Ahn
  • Publication number: 20100333217
    Abstract: Provided is a method for screening a composition for preventing or treating an osteoporosis and a metabolic bone disease using a TALLYHO/JngJ mouse, and more particularly, to a method for screening a compound effective in preventing and treating a disease caused by abnormalities of a bone metabolism including an osteoporosis, through assessment of a bone regeneration activity, such as acceleration of osteoblast differentiation, inhibition of osteoclast differentiation, variation of cytokine in a serum, as well as a bone mineral density and a bone mineral content in a femur, using a TALLYHO/JngJ mouse instead of a ovariectomized animal generally used in estimating the efficacy of a new osteoporosis medicine in an animal. The screening method has a simple and stable experiment procedure, and can be used in developing an agent for treating an osteoporosis of men and improving the bone mineral content.
    Type: Application
    Filed: April 23, 2008
    Publication date: December 30, 2010
    Applicant: KOREA RESERACH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Myung Ae Bae, Hyae Gyeong Cheon, Sung Eun Yoo, Hee Youn Kim, Won Hoon Jung, Sang Dal Rhee, Doh Yeon Ahn
  • Publication number: 20100231259
    Abstract: A logic circuit includes a logic gate unit, an inverter, and a switching circuit. The logic gate unit receives a power supply voltage and an input signal to output a first signal. The inverter receives the first signal to output a second signal. The switching circuit provides one of first and second power supply voltages as the power supply voltage of the logic gate unit in response to the first and second signals. The first power supply voltage and the second power supply voltage have different voltage levels, thus enabling stable level shifting.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 16, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jonghoon Jung, Sounghoon Sim, Mi yeon Ahn
  • Publication number: 20080069807
    Abstract: Compositions comprising membrane-derived and synthetic microparticles that induce platelet aggregation and are useful for treating bleeding disorders, particularly those involving platelet dysfunction. Microparticles include endothelial derived microparticles (EMP), platelet derived microparticles (PMP), erythrocyte derived microparticles (RMP), and synthetic microparticles (SMP), and are used to treat disorders such as thrombocytopenia caused by chemotherapy.
    Type: Application
    Filed: December 7, 2005
    Publication date: March 20, 2008
    Applicant: University of Miami
    Inventors: Wenche Jy, Joaquin Jimenez, Lawrence Horstmann, Yeon Ahn, Eugene Ahn
  • Patent number: 6931895
    Abstract: A burglar proof apparatus is provided, wherein locking and unlocking devices are provided within the storage case so that the storage case may not be opened unless the unlocking device is used, whereby burglary can be reliably prevented. The apparatus includes a case body wherein a housing space is formed for the data storage disk and a lock groove is formed on both outer sides thereof, a disk holder including a plurality of guide rails for insertion into the lock groove of the case body, formed on both inner sides thereof, for supporting and housing a width of the data storage disk, and a locking means for controlling the assembly of the disk holder and the case body, including a hanger piece of a protrusion disposed on an inner face of the lock groove, and a leaf spring disposed between guide rails of the disk holder for locking the hanger piece in a through hole.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: August 23, 2005
    Inventor: Jae-Yeon Ahn