Patents by Inventor Doohwan YANG
Doohwan YANG 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).
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Publication number: 20240137052Abstract: Provided is an electronic device including a transceiver configured to output a first transmission signal, a first radio frequency (RF) module configured to amplify the first transmission signal obtained from the transceiver to generate an amplified first transmission signal, a first antenna configured to transmit the amplified first transmission signal, and a main coupler provided outside the first RF module along a transmission path between the first RF module and the first antenna, and configured to output a first coupling signal corresponding to the first transmission signal. The first RF module includes at least one power amplifier configured to amplify the first transmission signal, and a switch configured to connect one of a plurality of input ports, including at least one input port connected to the main coupler and configured to receive the first coupling signal output by the main coupler, with an output port connected to the transceiver.Type: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: John Moon, Hyoseok Na, Dongil Yang, Doohwan Lee
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Patent number: 11962341Abstract: The disclosure relates to an electronic device and a method for wireless communication including a power amplification circuit. According to an embodiment, an electronic device may include: a radio frequency processing module comprising radio frequency circuitry, a first power amplification circuit connected to the radio frequency processing module, a second power amplification circuit connected to the radio frequency processing module and the first power amplification circuit, and a front-end module comprising circuitry connected to the second power amplification circuit and an antenna and configured to transmit a signal, wherein the second power amplification circuit is configured to acquire, from the first power amplification circuit, a first signal obtained by amplifying a signal output from the radio frequency processing module and a second signal by amplifying a signal output from the radio frequency processing module.Type: GrantFiled: December 27, 2021Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yousung Lee, Dongil Yang, Hyoseok Na, Doohwan Lee
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Patent number: 10644171Abstract: A solar cell can include a photoelectric conversion unit including a semiconductor substrate, a tunneling layer disposed on the semiconductor substrate, a first conductive type region and a second conductive type region disposed on the tunneling layer at a same side of the semiconductor substrate, and a barrier region disposed between the first and second conductive type regions; and an electrode disposed on the photoelectric conversion unit and including an adhesive layer disposed on the first and second conductive type regions, and an electrode layer disposed on the adhesive layer, in which the adhesive layer has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the photoelectric conversion unit and is less than a coefficient of thermal expansion of the electrode layer.Type: GrantFiled: October 6, 2017Date of Patent: May 5, 2020Assignee: LG ELECTRONICS INC.Inventors: Jeongbeom Nam, Doohwan Yang, Eunjoo Lee, Ilhyoung Jung
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Publication number: 20180033899Abstract: A solar cell can include a photoelectric conversion unit including a semiconductor substrate, a tunneling layer disposed on the semiconductor substrate, a first conductive type region and a second conductive type region disposed on the tunneling layer at a same side of the semiconductor substrate, and a barrier region disposed between the first and second conductive type regions; and an electrode disposed on the photoelectric conversion unit and including an adhesive layer disposed on the first and second conductive type regions, and an electrode layer disposed on the adhesive layer, in which the adhesive layer has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the photoelectric conversion unit and is less than a coefficient of thermal expansion of the electrode layer.Type: ApplicationFiled: October 6, 2017Publication date: February 1, 2018Applicant: LG ELECTRONICS INC.Inventors: Jeongbeom NAM, Doohwan YANG, Eunjoo LEE, Ilhyoung JUNG
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Patent number: 9799781Abstract: A solar cell is discussed. The solar cell according to an embodiment includes a photoelectric conversion unit including a first conductive type region and a second conductive type region formed on the same side of the photoelectric conversion unit; and an electrode formed on the photoelectric conversion unit and including an adhesive layer formed on the photoelectric conversion unit and an electrode layer formed on the adhesive layer, wherein the adhesive layer has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the photoelectric conversion unit and is less than a coefficient of thermal expansion of the electrode layer.Type: GrantFiled: November 7, 2014Date of Patent: October 24, 2017Assignee: LG ELECTRONICS INC.Inventors: Jeongbeom Nam, Doohwan Yang, Eunjoo Lee, Ilhyoung Jung
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Publication number: 20150129037Abstract: A solar cell is discussed. The solar cell according to an embodiment includes a photoelectric conversion unit including a first conductive type region and a second conductive type region formed on the same side of the photoelectric conversion unit; and an electrode formed on the photoelectric conversion unit and including an adhesive layer formed on the photoelectric conversion unit and an electrode layer formed on the adhesive layer, wherein the adhesive layer has a coefficient of thermal expansion that is greater than a coefficient of thermal expansion of the photoelectric conversion unit and is less than a coefficient of thermal expansion of the electrode layer.Type: ApplicationFiled: November 7, 2014Publication date: May 14, 2015Applicant: LG ELECTRONICS INC.Inventors: Jeongbeom NAM, Doohwan YANG, Eunjoo LEE, Ilhyoung JUNG
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Publication number: 20140251424Abstract: A solar cell is disclosed. The solar cell includes a semiconductor substrate, a conductive region formed at the semiconductor substrate and having a conductive type identical to or different from that of the semiconductor substrate, a passivation film formed on the semiconductor substrate so as to cover the conductive region, and an electrode electrically connected to at least one of the semiconductor substrate and the conductive region. The passivation film includes a first layer formed on the conductive region and including silicon oxide, a second layer formed on the first layer and including an oxide having a negative charge, and a third layer formed on the second layer and having an index of refraction different from that of the second layer.Type: ApplicationFiled: March 5, 2014Publication date: September 11, 2014Applicant: LG ELECTRONICS INC.Inventors: Doohwan YANG, Juhong YANG, Ilhyoung JUNG, Jinah KIM