Patents by Inventor Min-Hyun LEE

Min-Hyun LEE 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: 9660571
    Abstract: A method for hybrid solar tracking, and an apparatus for hybrid solar tracking and a photovoltaic blind system using the same are disclosed. The method includes generating first predicted power output data by analyzing first measured power output data of the past; generating a lagged error; constructing a regression analysis (RA) model, and deriving second predicted power output data; constructing an artificial neural network (ANN) model, and deriving third predicted power output data; selecting either a method for solar tracking based on photovoltaic power output or a method for solar tracking based on location and time depending on whether the second measured power output data of the present time falls within a filtering range based on a first error range and a second error range; and determining the directions of photovoltaic panels according to the selected method for solar tracking.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 23, 2017
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Tae Hoon Hong, Choong Wan Koo, Kwang Bok Jeong, Ji Min Kim, Cheol Woo Ban, Min Hyun Lee, Chang Yoon Ji
  • Publication number: 20160190981
    Abstract: A method for hybrid solar tracking, and an apparatus for hybrid solar tracking and a photovoltaic blind system using the same are disclosed. The method includes generating first predicted power output data by analyzing first measured power output data of the past; generating a lagged error; constructing a regression analysis (RA) model, and deriving second predicted power output data; constructing an artificial neural network (ANN) model, and deriving third predicted power output data; selecting either a method for solar tracking based on photovoltaic power output or a method for solar tracking based on location and time depending on whether the second measured power output data of the present time falls within a filtering range based on a first error range and a second error range; and determining the directions of photovoltaic panels according to the selected method for solar tracking.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Inventors: Tae Hoon HONG, Choong Wan KOO, Kwang Bok JEONG, Ji Min KIM, Cheol Woo BAN, Min Hyun LEE, Chang Yoon JI
  • Patent number: 9312368
    Abstract: A graphene device including separated junction contacts and a method of manufacturing the same are disclosed. The graphene device is a field effect transistor (FET) in which graphene is used as a channel. A source electrode and a drain electrode do not directly contact the graphene channel, and junction contacts formed by doping semiconductor are separately disposed between the graphene channel and the source electrode and between the graphene channel and the drain electrode. Therefore, in an off state where a voltage is not applied to a gate electrode, due to a barrier between the graphene channel and the junction contacts, carriers may not move. As a result, the graphene device may have low current in the off state.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: April 12, 2016
    Assignee: Samsuung Electronics Co., LTD.
    Inventors: Jae-ho Lee, Kyung-eun Byun, Hyun-jae Song, Hyeon-jin Shin, Min-Hyun Lee, In-kyeong Yoo, Seong-jun Park
  • Publication number: 20150137074
    Abstract: A graphene device including separated junction contacts and a method of manufacturing the same are disclosed. The graphene device is a field effect transistor (FET) in which graphene is used as a channel. A source electrode and a drain electrode do not directly contact the graphene channel, and junction contacts formed by doping semiconductor are separately disposed between the graphene channel and the source electrode and between the graphene channel and the drain electrode. Therefore, in an off state where a voltage is not applied to a gate electrode, due to a barrier between the graphene channel and the junction contacts, carriers may not move. As a result, the graphene device may have low current in the off state.
    Type: Application
    Filed: July 17, 2014
    Publication date: May 21, 2015
    Inventors: Jae-ho LEE, Kyung-eun BYUN, Hyun-jae SONG, Hyeon-jin SHIN, Min-Hyun LEE, In-kyeong YOO, Seong-jun PARK